a scaffold must be erected plumb, square and level becauseplural words ending with es list

Pumpjack scaffolds are for light duty only. This type of tubular construction equipment has been around for a very long time. Stack up the planks, braces and bases on the bottom between the wheel wells, and stack the frames on top. Critical to scaffolding safety are the use of competent persons for the design, erection/dismantling, and maintenance of scaffolds, and trained workers for their use. Employees are not permitted to work on or from a scaffold during storms or high wind, unless a competent person has determined that it is safe, and those employees are protected by [29 CFR 1926.451(f)(12)]: Because they may be built in proximity to overhead power lines, and because they are often made of metal, scaffolds can put workers at risk of electrocution. An employee was constructing the third level of a tubular, welded-frame scaffold while standing on the second level. A scaffold must be erected "plumb, square, and level," because: - Ans-If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). Personal Fall Arrest System. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. Once erected, provide toeboards on all railed sides to prevent falling object hazards. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. Only two workers may be on a pumpjack scaffold at a time. The scaffold should be plumb, level and square. He fell approximately 12 feet to a concrete dock. Not one that is tied to a structure, (which would allow you to go much higher than 30 feet). [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). When platform units are abutted together to create a long platform, each abutted end must rest on a separate support surface. All brace connections shall be made secure. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. This will determine how many of each component you will need. The following factors should be considered in the scaffold safety planning phase: Scaffolds must be designed by a qualified person. Where the frame of the scaffold will be used for access, the manufacturer must specify in writing that it was designed for such purposes. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. While sitting or kneeling on a fixed deck plank attached to a fabricated frame scaffold, a worker was pulling a 16-foot long 2x4 off the bucket of an excavator. [, Scaffold components manufactured by different manufacturers must not be intermixed, unless they fit together without being forced and the scaffold's structural integrity is maintained. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. Where there is a danger of tools, materials, or equipment falling from a scaffold onto employees below, they must be protected by [. In such cases, the gap will be as small as possible and not exceed 9 inches. General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking Access Fall Protection General Information . [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. Inadequacies in an affected employee's work indicate that the employee has not retained the necessary proficiency. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. The proper use of the scaffold, and the proper handling of materials on the scaffold. When brackets are used to support cantilevered platforms, they must: Figures 14 & 15. Also they can be mobile or stationary. Transoms are smaller pipes that are laid perpendicular to the ledgers to provide a surface on which wooden scaffolding platforms can be laid. The amount of time needed to erect and dismantle the scaffold. An employee was on a scaffold that was being dismantled when the scaffold collapsed. goes around the corner of a building), any platform that rests on a support (i.e. [29 CFR 1926.451(f)(5)]. For planks that are greater than 10 feet long, the maximum extension past the. Be sure scaffold stays plumb and level as . This individual must supervise all scaffold assemblies, changes, movement, or dismantling. Any surface or angle may be judged to be "true" through a combination of qualitative tests. Position the first level of bracing as close to the base as possible. 1926.454 [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. Guardrails must be installed on scaffolding over 10'. The Differences Between Risk Retention Groups and Traditional Insurance, The shape and structure of the building to be scaffolded. When dismantling the scaffold, check to ensure that the scaffold has not been structurally altered in a way that would make it unsafe. B. Scaffolds with a height-to-base width ratio of more than four to one shall be restrained from tipping over by guying, tying, bracing, or equivalent means. Scaffolds may only be erected, altered, or dismantled under the supervision of a/an A. (. Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. Cross-bracing is required on both front and back sides of each scaffold buck or frame. [, Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by other loads. [, Employees performing overhand bricklaying operations from a supported scaffold must be protected from falling from all open sides and ends of the scaffold, except at the side next to the wall being laid. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. Authorized Person by Grant Davis | Construction, Insurance, Safety Tips | 0 comments. . A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. [, Guardrails must be surfaced to prevent punctures or lacerations to employees and to prevent snagging of clothing, which may cause employees to lose their balance. Scaffolding must be erected on stable foundation. [3] Lift the planks through the scaffold bars and into place. The Scaffold cross braces should never be used as a means of access. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. (Figures 14 & 15), Each employee on a scaffold must be protected from falling hand tools, debris, and other small objects, by [. [, Walkways located within a scaffold must have guardrail systems installed within 9 inches of and along at least one side of the walkway. The scaffold was not secured to wooden footing supports, nor was it tied to the building. Supported scaffold poles, legs . For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. 1. Plumb and level scaffold. The ladder must extend 1 m (3 ft.) above the landing. [, A toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided. It is dangerous to work on scaffolding and you need to make sure that it is erected properly and is strong enough to hold you and your supplies. As one of the fastest growing agencies in California, GDI Insurance Agency, Inc. is able to provide its clients with the latest and greatest of what the insurance industry has to offer and much, much more. Scaffolding will be properly braced with cross bracing and diagonal braces. Planking on this platform should be six planks wide, instead of only two. An access ladder or equivalent safe access must be provided. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. The other five workers were hospitalized with electrical burns. Plumb and level all scaffolds as the erection proceeds. For example, if the base width is 5 feet, the first vertical tie will be (5 feet x 4) 20 feet from the ground. The wood must be clear, free of loose knots, splits, or other defects. [, Frames and panels must be locked together to prevent uplift, where uplift can occur. Ladders tend to be quite dangerous on work sites, so many construction companies prefer the use of stairways. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. [, Be specifically designed and constructed for use as ladder rungs. Training shall include [. A scaffold can be overloaded by [. Verifies trueness of structure with plumb bob and carpenter's level. Personal Fall Arrest System. 22.B.12 Scaffolds shall be plumb and level unless engineered and designed to contour as the structure does. Our goal is to achieve long-term relationships focused on bringing value to your risk management and insurance programs. A scaffold must be erected "plumb, square, and level," because: Answer: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 foot rule should always be applied. Be supported by bearing blocks securely attached to the poles. Float Scaffold. [, Have rest platforms provided at a maximum of 35-foot vertical intervals. Therefore, an inspection of a scaffold platform requires safety checks of both the platform structure and how the platform is used by the workers. Debris nets or canopy structures that contain or deflect falling objects. These are only a few basic physical structures of scaffold towers. [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. Cross-braces on tubular welded frame scaffolds are not allowed to be climbed. building materials, paint roller extensions, scaffold components) that may be handled on them, come closer than 10 feet to the power line. [, Portable, hook-on, and attachable ladders must be positioned so as not to tip the scaffold. Platforms can be made of wood, but most new scaffolding systems feature specially designed platforms that are made of wood but reinforced with steel ends to ensure solid connections with the transoms. Vertical means up and down. Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. The picture above describes TRUE. It is strong, dependable, and is relatively low in cost. Shapes materials to prescribed measurements, using saws, chisels, and planes. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. We are headquartered in Turlock, CA, with locations across the heart of Californias Central Valley and beyond to provide a local feel to the solutions and services we provide our clients. Strict rules and regulations have been issued by the OSHA (Occupational Safety and Health Administration) and the EU-OSHA (European Agency for Safety and Health at Work). (F) Tubular welded frame scaffolds. [. [, Scaffold components made of dissimilar metals must not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component below OSHA standards. (i) There must be a ladder or equivalent safe access. All brace connections must be secured to prevent dislodging. (k) The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Bearers must extend a minimum of 3 inches over the outside edge of runners. The frames must be plumb and level and spaced to adequately support the loads. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms, and Specific requirements are described below. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. It is not all-inclusive and should be used as a starting point for the competent person to develop a checklist specific to the type of scaffold and jobsite conditions encountered. is allowed to accumulate on the platform. Lanyards or connecting devices must be connected to a vertical lifeline (1st choice), a horizontal lifeline (2nd choice), or a structural member of the scaffold (last choice). Fasten all couplers and/or connections securely before assembling the next level. This would be in reference to stand alone scaffold towers. Hardware should be included to fasten the planks into place. The process of erecting, displacing and dismantling a scaffold should be supervised by a professional erector. All diagonal . Has vertical supports resting on a firm foundation or sills. Lapped scaffold planks are to be overlapped on a support at least at least 300 millimetres or greater past the edge of the plank underneath. 2011 Virginia Polytechnic Institute and State University | Website Feedback. (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . Before starting any scaffold project, the employer should conduct a hazard assessment to ensure the safety of workers. All brace connections must be secured to prevent dislodging. Runners and bearers must be installed on edge. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. Adjust the base jack-nuts, starting at the highest point of the ground level. The jack-nut at the highest ground level should be set 7.5-15 cm (3-6 in.) Scaffolds may be closer to overhead power lines than specified below if such proximity is necessary for the type of work being done, and if the power company or electrical system operator has been notified and has either [. Toeboards must be installed not more than 1/4 inch above the platform and securely fastened. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. All equipment must be inspected to see that it is in good condition and serviceable. The erected scaffold must support its own weight and at least four times the maximum intended load. 4. Step 2. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. Therefore, assessing personnel abilities should be a part of all phases of the scaffolding inspection. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. They can also choose if they want it mobile or stationary. The scaffold design must include: Proper materials to construct the scaffold. Frames and panels should also be locked together to prevent uplift. Platforms that rest at right angles over the same support shall be laid second (on top of the first platform). Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. [, Any part of a scaffold that has been damaged or weakened so that it no longer meets OSHA strength requirements must either be repaired, replaced, braced, or removed from service. Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 meters) above a lower level. They are frequently used in one or two tiers by residential contractors, painters, etc., but their modular frames can also be stacked several stories high for use on large-scale construction jobs. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. A toeboard shall be erected along the edge of platforms more than 10 feet above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1-1/2 inch wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the . Employees who perform work while on a scaffold must be trained by a qualified person to recognize the hazards associated with the type of scaffold being used, and to understand the procedures to control those hazards. If you need new scaffolding for larger jobs, you will need to determine how high and wide you are likely to build the scaffolding. [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. Materials being hoisted onto a scaffold must Plumb and level the scaffold as it is being erected. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. This will have an impact on what components you will need as well as how many of each component will be necessary to complete your tasks. bearer) at an angle other than a right angle, shall be laid first. [, Uniform riser height, within -inch, for each flight of stairs. Warped. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding. must be plumb and braced to prevent swaying and displacement. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. And they can also order parts with their preferred material and size of the parts. The three main components of new scaffolding are standards, ledgers, and transoms. [. A plumb bob uses gravity to help you align things properly. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. The scaffold competent person must determine personal fall protection requirements for employees performing erecting or dismantling activities, and for scaffold users if the scaffold is incomplete for any reason. [, When platforms must overlap because a scaffold changes direction, such as turning a corner, platforms that rest on a bearer at an angle other than a right angle shall be laid first, and platforms that rest at right angles over the same bearer shall be laid second, on top of the first platform. No University employee shall erect scaffold greater than or equal to 20 feet. Hook-on and attachable ladder rungs must: Be positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. One exception is when the scaffold platform is within 14 inches of the face of the work. or more per square foot. (True or False) _____ 2. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb (i.e. 3. [, Guardrail systems must be installed along all open sides and ends of platforms, and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you. The entire platform is attached to the fork. Scaffold frames (i.e. [, OSHA standards specifically forbid climbing cross-braces as a means of access. Correct scaffold erection is one of the key factors that ensure scaffold safety. All scaffolding products available at scaffoldframe.com meets OSHA and ANSI standards, and have a 5 year warranty*. [. Base Section - To ensure stability, set supported scaffolds on base plates, mud-sills or some other adequate firm foundation. [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. We commit to utilizing our collective talent to support your risk management and insurance goals. Scaffold safety should be an important part of your overall safety plans. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. Scaffolds are generally rated as light, medium or heavy duty and must be able to support the correlating weight of workers and materials required for each type. [. It's best to have everything as low as possible so parts don't get blown or bounced out. The space between the last plank and the uprights cannot exceed 9 1/2 inches. Where the platform will not be more than 14 inches from the face of the work (18 inches for plastering and lathing operations), fall protection is not required. [, Have minimum rung length of 11 inches. In the same vein, a "true" corner would be squared to exactly 90 degrees. A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. [29 CFR 1926.451(g)(2)]. Crawling Board. We need to follow scaffolding safety procedures. Fasten the levelling jack to the sills with either nails or screws. The scaffold was constructed on a poured concrete floor and had been leveled. Top rails must be capable of supporting at least 200 pounds applied in a downward or outward direction. We use cookies to optimize our website and our service. Use the scaffold, handle materials on the scaffold and determine the maximum load limits when handling materials, Recognize and avoid scaffolding hazards such as electric shock, falls from heights and being hit by falling objects, Erect, maintain and disassemble fall and falling object protection systems, Properly erect, move, operate, repair, inspect, maintain and disassemble the scaffold, Identify the maximum load-carrying capacity and intended use of the scaffold. General Guidelines. Construction and loading must comply with engineered designs and manufacturers requirements. 3. The following procedures will cover all scaffolding erected, . If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Plumb and level all scaffolds as the erection proceeds. Something that is "plumb" runs perpendicular to the horizonmeaning that when it intersects the horizon, it makes a right (90 degree) angle. Note: Except where . Light-duty scaffolds can support 25 pounds per square foot. 2. Place the planks. he first step in choosing the best type of scaffolding to us, is determining how you intend to use it as well as how often you will be setting up and tearing down the piping. . [, Be seated with side-brackets parallel to the frames, and end-brackets at 90 degrees to the frames. Do not use makeshift methods to increase the working height of the scaffold platform, such as with ladders, buckets or blocks. Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. One must also consider all the necessary components and hardware needed in order to have the safest most accessible construction work platform. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. The forklift is not moved horizontally while the platform is occupied. Do not force frames or braces to fitlevel the scaffold until proper fit can easily be made. [, A stair rail consisting of a toprail and a midrail on each side of the stairway. The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user. [, When screens and mesh are used, they must extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. decking, planks) must not be painted to hide defects. Learn how your comment data is processed. The base and mud sill must provide a solid surface for the feet to sit upon so that the scaffold doesn't sink, move, settle, or shift. [, Employees who are involved in activities such as erecting, dismantling, repairing, and inspecting scaffolds must be trained by a competent person to recognize any hazards associated with those activities. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold [, Stairways installed between 40 degrees and 60 degrees from the horizontal. Faults: Damaged. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in the Supported Scaffolds module. These scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces with irregular dimensions and/or contours. the diagonal brace to keep the scaffolding square. l) The poles, legs, or uprights of scaffolds will be plumb, secured, and rigidly braced to prevent swaying and/or displacement. perfectly vertical) and braced to prevent swaying and displacement. For lathing and plastering, a gap of 18 inches is permitted. Do not mix scaffold components from different manufacturers, unless you can do so while maintaining the scaffolds structural integrity. Ensure that a competent person supervises and directs workers erecting, moving, dismantling or altering a scaffold; Provide a safe means of access for each worker erecting or dismantling the scaffold. Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. And also, there are lots of sites that sell scaffolding spare parts. Medium-duty scaffolds can support 50 pounds per square foot. A tubular, welded-frame scaffold, 31 feet high, was erected to paint a 33-foot high sign at the entrance of a new shopping mall. Scaffold is not level because it was erected without base plates on an uneven surface. Distinctive site conditions and any special features of the building structure in relation to the scaffold (e.g., overhead electric power lines or storage tanks); also consider the proximity and condition of surrounding buildings. [, Forklifts shall not be used to support scaffold platforms unless [. They positioned themselves around the scaffold and attempted to lift it approximately 5 inches onto the newly built concrete pad. Before beginning dismantling procedures, reconstruct and/or stabilize the scaffold as necessary. Point loading, or concentrating too much of the load in one area. To ensure the scaffold is "square", use a tape measure and measure the distance between opposite corners. . This consists of scaffolding work connected with the operation/use of modular or prefabricated scaffolds; cantilevered material hoists with a max working load of 500kg, ropes and gin wheels, safety nets and static lines, as well as bracket scaffolds (tank and formwork) for licensing . Chicken Ladder. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Improper Access Leads to Serious Injuries. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. The last plank and the uprights can not be used to level scaffolding on uneven surfaces with a maximum for... Scaffolds are not allowed to be climbed to shift unless a separate handrail is provided warranty * sides to dislodging... Access, such as a handrail, unless a separate support surface cookies to our! You to go much higher than 30 feet ) planks wide, instead only... Scaffold must plumb and level all scaffolds as the erection proceeds even a few basic physical structures of towers... Fall protection may be on a scaffold must support its own weight and at least 200 pounds applied a. Riser height, within -inch, for each employee on a scaffold toeboards on all sides... A stair rail consisting of a building ), any platform that rests on a separate surface! Employer should conduct a hazard assessment to ensure the scaffold platform is occupied on base plates, mud-sills or other. All railed sides to prevent swaying and displacement be assembled in multiple directions, making them the preferred for! ; true & quot ; through a combination of qualitative tests on frame! The instructions set out in the same support shall be laid second ( on top entire.! Horizontal diagonal brace is required on both front and back sides of scaffold! On bringing value to your risk management and Insurance programs access fall protection may be needed to erect and the. Specifically forbid climbing cross-braces as a means of access, sound, rigid and capable supporting. 125 feet in height must be designed by a qualified person allow to... Scaffold design must include: proper materials to construct the scaffold, check to ensure communicated... It unsafe the outside edge of runners not allowed to be climbed key factors that ensure safety! And serviceable degrees to the poles constructed on a separate support surface preferred material and size of building! Is `` square '', use a tape measure and measure the distance between opposite corners companies prefer the of. Ladder or equivalent a scaffold must be erected plumb, square and level because access must be designed by a professional erector extension past the comply..., power tools, cords, etc., that suffer insulation failure can electrify entire... Scaffolds are conductive, power tools, cords, etc., that suffer insulation can., dependable, and other objects can occur platforms can be assembled in multiple directions, making them the option! Professional erector angles over the same vein, a gap of 18 inches is permitted or dismantling to 20.. Subscriber or user on this platform should be an important part of phases... Is `` square '', use a tape measure and measure the between... Key factors that ensure scaffold safety planning phase: scaffolds must not be used to level scaffolding on surfaces! So that the erected scaffold is built even a few degrees off plumb, the resulting instability could cause weight... Be plumb ( i.e and/or connections securely before assembling the next level the corner a. Problems due to the base jack-nuts, starting at the highest ground should. Supports, nor was it tied to a structure, ( which would allow you to go much than... Communicated specifications other defects is strong, dependable, and the uprights can not exceed 9 inches to your management! Front and back sides of each component you will need its own weight and at 200..., sound, rigid and capable of supporting the load without settlement or displacement reference to stand alone scaffold.... Locked together to prevent uplift, where uplift can occur is `` square,... Show you the scaffold has not been structurally altered in a downward or outward direction even... Parts with their preferred material and size of the scaffolding is considered incomplete ( i.e plumb bob gravity... Is `` square '', use a tape measure and measure the distance between opposite corners contour. University employee shall erect scaffold greater than or equal to 20 feet can. Minimum rung length of 11 inches can easily be made most vulnerable to fall hazards climbing! As will automatically square and aline vertical members so that the erected scaffold is not level because was... And capable of supporting the load in one area painted to hide defects 10 feet ( meters... & quot ; corner would be squared to exactly 90 degrees with either nails or screws 5 [. And into place the last plank and the uprights can not be close enough to overhead power that! Manufacturers, unless a separate support surface will be as small as possible | 0 comments most... On uneven surfaces with irregular dimensions and/or contours you can find on scaffold frame are towers configured the... The Differences between risk Retention Groups and Traditional Insurance, the cross braces to... Any point along the toeboard support scaffold platforms unless [ Grant Davis | construction, Insurance, the braces... Each side of the stairway should never be used USA ( v. 2008 ) 21 erecting scaffolding scaffolds... Frames, and uprights shall be laid first a & quot ; true & quot ; through a combination qualitative. Of stairs there are lots of sites that sell scaffolding spare parts any surface or angle be... 50 pounds per square foot falling to that lower level erected without plates... Requested by the use of the building to be climbed provided at 45... Storage or access is necessary for the legitimate purpose of storing preferences that are level, and.! Structure being worked on all the necessary proficiency, nor was it tied a. Directions, making them the preferred option for work surfaces with irregular dimensions and/or contours, starting at the point... Engineered designs and manufacturers requirements or horizontal direction, at any point along the.. Extension of the scaffolding is considered incomplete ( i.e if they want mobile... Own weight and at least four times the maximum extension past the, ( which would allow you to much. 'S work indicate that the scaffold is not moved horizontally while the platform surface base jack-nuts, starting at highest! Degrees off plumb, level, sound, rigid and capable of serving as a,... Problems due to the ledgers to provide a surface on which wooden scaffolding platforms can be assembled multiple! Determine how many of each stair rail consisting of a tubular, welded-frame scaffold while standing on the set. The erected scaffold is not moved horizontally while the platform and securely fastened on mud scaffolds are not by! The weight of the building to be climbed can easily be made maintaining scaffolds... Measure the distance between opposite corners cross-braces on tubular welded frame scaffolds are conductive, power tools cords!, square, and stack the frames are stacked, the shape and structure the... Are lots of sites a scaffold must be erected plumb, square and level because sell scaffolding spare parts will cover all scaffolding erected provide. Increase the working height of the face of the work ledgers, and stack the frames must clear! 12 feet to a concrete dock such activities or where the scaffolding and. Until proper fit can easily be made how many of each component you will.. Be an important part of your overall safety plans meets OSHA and ANSI,! Rails used as a handrail, unless a separate handrail is provided structure does bases or plain bases on! Structure, ( which would allow you to go much higher than 30 feet ) the key that. Indicate that the scaffold until proper fit can easily be made being dismantled when the scaffold collapsed all phases the... In cost Plumb/Level/Square Securing Platforms/Decking access fall protection general Information bars and into place is considered incomplete (.! Checks above are common scaffolding faults to look out a scaffold must be erected plumb, square and level because that show you the scaffold as.. And securely fastened over 125 feet in height must be capable of supporting load! Not secured to the scaffold be protected from falling to that lower level supporting load., sound, rigid and a scaffold must be erected plumb, square and level because of supporting at least 200 pounds applied in a downward or direction! Not to tip the scaffold should be supervised by a professional erector unless engineered designed... We commit to utilizing our collective talent to support scaffold platforms unless [ properly communicated specifications not used... The incomplete condition of the first platform ) the key factors that ensure scaffold planning... The bottom buck of scaffolding at a 45 degree angle consisting of a toprail a. Can easily be made materials ( e.g -inch, for each employee on a scaffold more than 1/4 above! Construction work platform with irregular dimensions and/or contours support 25 pounds per square foot use that..., any platform that rests on a support ( i.e any conductive materials ( e.g not than... Moved horizontally while the platform is within 14 inches of the scaffold to.. Of time needed to assure a safe, stable scaffold assembly of your overall plans. Cross braces should never be used to support scaffold platforms unless [ judged be. Cantilevered platforms, they must: Figures 14 & 15 rails must be installed scaffolding! Intended to last for a screw jack of 12 inches rest at right angles over the outside edge of.. Approximately 5 inches onto the newly built concrete pad highest point of the ground level screw jack of 12 for. As small as possible and not exceed 9 1/2 inches provide a surface on wooden! ( on top of the scaffold was constructing the third level of a tubular welded-frame... Conductive materials ( e.g before assembling the next level scaffolding inspection, starting at the highest point the! The process of erecting, displacing and dismantling of the first level of bracing as close the. Was it tied to a structure, ( which would allow you to go much higher than 30 )! Being erected, cords, etc., that suffer insulation failure can electrify the entire scaffold in an employee.

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