Changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. Supported scaffold poles, frames and uprights must be plumb and braced to prevent any displacement caused by swaying. General Information Base/Footing Plumb/Level/Square Securing Platforms/Decking Access Fall Protection General Information . Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. The training must include: assessment of the base material the scaffold will be erected upon, load calculations for materials and personnel, erection and dismantling . Scaffolds need to be erected plumb, level, squared and braced to . [, 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. Hardware should be included to fasten the planks into place. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. The ladder must extend 1 m (3 ft.) above the landing. Crossbracing is required on both front and back sides of each scaffold buck or frame. Reaching 5 foot high all the way up to 30 feet tall. Safe points of anchorage include structural members of buildings, but not standpipes, vents, electrical conduit, etc., which may give way under the force of a fall. All brace connections must be secured to prevent dislodging. The technical storage or access that is used exclusively for statistical purposes. The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. Top rails (manufactured after 1/1/2000) must be 38 - 45 inches above the platform surface. This unit specifies the outcomes required to safely erect, alter and dismantle scaffolding at the basic level. 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). Supported scaffold poles, legs . Guardrails must be installed on scaffolding over 10'. Potential accessories include ladders, stairways, platforms, tool bins, and hoists. 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. missing parts due to area obstructions). d. Scaffold legs shall be set on adjustable bases or plain bases placed on mud sills or other foundations adequate to support the maximum intended load. B. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. General Guidelines. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. Verifies trueness of structure with plumb bob and carpenter's level. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. Shapes materials to prescribed measurements, using saws, chisels, and planes. You will need many of each component for larger structures. Ladders tend to be quite dangerous on work sites, so many construction companies prefer the use of stairways. The scaffold was constructed on a poured concrete floor and had been leveled. [, Be positioned so that their bottom step is not more than 24 inches above the scaffold supporting level, [, Have rest platforms at maximum vertical intervals of 12 feet, [, Have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which shall have a minimum step width of 11 inches [, Have slip-resistant treads on all steps and landings. 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. Consider such platforms for added stability and safety. Training shall include [. B.13 Scaffolds (other than suspended scaffolds) shall bear on . Only two workers may be on a pumpjack scaffold at a time. Tip: Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, or strike the scaffold with tools, materials, etc. [, 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. Pinning - Frames and panels must be joined together vertically through the use of stacking pins or coupling, or equivalent means. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. [, 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. . A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 "General Requirements for Scaffolds" and 29 CFR 1926.452 "Additional . Personal fall protection must be required and provided by the employer where the installation and use of such protection is feasible and does not create a greater hazard. Tube and coupler scaffold design must comply with 29 CFR 1926.451.452. We pride ourselves on exceeding our clients expectations in every interaction to make sure that our clients know how much we value and appreciate their business. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. Scaffolds must be fully planked or decked whenever possible. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. Be supported by bearing blocks securely attached to the poles. Plumb and level scaffold. Avoid propping the scaffolding frames up on the side of the bed. 1 . Don't use bricks, blocks, barrels, or other unstable objects to level a scaffold. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. [, Steps and rungs of ladders and stairway-type ladders must line up vertically with each other between rest platforms. If the base width is three feet or less, the first tie will be a vertical distance of four times the base width and every 20 feet vertical thereafter. Scaffold safety should be an important part of your overall safety plans. Design features include a rest platform every 35 feet, rungs at least 11 1/2 inches wide (8 inches for ladders built into the frame), and uniform rung spacing not exceeding 16 3/4 inches. Check the level again and plumb if necessary. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. He fell 16 feet to the ground, sustaining facial fractures and other injuries. The safe use of a scaffold is the responsibility of all people involved with the scaffold. Install the diagonal brace to keep the scaffolding square. 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. Personal Fall Arrest System, Guardrail System, or 3/4 inch (1.9 cm) grabline or equivalent handhold securely fastened beside each crawling board. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. Ladders that are a part of the scaffolding system, such as hook-on and attachable ladders, shall be positioned so that the bottom rung is not more than 24 inches above the supporting level. decking, planks) must not be painted to hide defects. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. One exception is when the scaffold platform is within 14 inches of the face of the work. Float Scaffold. Placement of potential falling objects away from the edge of the surface from which they may fall when the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures. 1. Erect plumb, square and rigid with all brace connections securely fastened. Make sure that a competent person inspects the scaffold before each work shift. Ladder Jack Scaffold. Scaffold Guardrail Systems - Standard rails are required on all scaffold towers. Step 2. 1. Move the scaffold into your desired position, and make sure it is level and secure. This individual must supervise all scaffold assemblies, changes, movement, or dismantling. For planks that are greater than 10 feet long, the maximum extension past the. bearer) at an angle other than a right angle, shall be laid first. Personal Fall Arrest System. 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. In such cases, the gap will be as small as possible and not exceed 9 inches. Always use . If a mobile rolling scaffold a solid platform covering the entire area from which an employee may work. In the same vein, a "true" corner would be squared to exactly 90 degrees. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. 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. 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. A door or window can be installed perfectly LEVEL, PLUMB & SQUARE on one side, but if the other side's aren't LEVEL, PLUMB & SQUARE . Catenary Scoffold. Wooden platforms (i.e. Midrails must be capable of supporting at least 150 pounds applied in a downward or outward direction. 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. NOTE: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in Supported Scaffolds. For long (running) scaffolds, guys, ties, and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet. 3. (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . (Figure 6) [, Hook-on and attachable ladders must be specifically designed for use with the type of scaffold on which they are used. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! [, Sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling. This set of regulations covers details that must be paid attention to when erecting, moving and dismantling a scaffold as well as measures that must be taken to ensure the safety of all those present on or in the vicinity of the tower. Be sure scaffold stays plumb and level as . (If manufactured before 1/1/2000, top rails must be between 36 - 45 inches above the platform surface.) [, 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. Extreme weather or damage to structural components can also affect a scaffold's stability. The size of the mud sill shall be based on the type of soil the scaffold will be erected upon. [, Slip-resistant surfaces on treads and landings. As early as possible, install hook-on or attachable ladders; Ensure that workers do not climb diagonal braces to reach the scaffold platform; Provide fall protection for workers erecting or dismantling the scaffold; and. After the sign had been partially painted, the scaffold was moved to allow concrete to be placed around the sign. [, Have uniform spacing between rungs of a maximum 16 inches. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. CALL US AT 877-997-2233. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. Additional requirements for these scaffolds can be found in their respective modules. Toeboards being installed along the edge of platforms more than 10 feet above lower levels. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. Supported scaffold poles, legs . Guy wires and ties prevent the scaffolding from tipping away from the building or structure, and braces are a rigid support that prevents the scaffold from tipping into the building/structure. Base Section - To ensure stability, set supported scaffolds on base plates, mud-sills or some other adequate firm foundation. is allowed to accumulate on the platform. [, Portable, hook-on, and attachable ladders must be positioned so as not to tip the scaffold. 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. When the employee tried to set the third level frame into the pins of the second level, the frame he was trying to position flipped to one side. A 28-year old carpenter and a 31-year old laborer were electrocuted. All diagonal . Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, they should be prevented from falling by paneling or screening extending from the toeboard to the top of the guardrail. You can measure if something is plumb by using a plumb bob or a spirit or laser level. [, Ends of stair rails and handrails constructed so that they do not constitute a projection hazard. [, Scaffolds and scaffold components must be inspected for visible defects before each shift by a competent person, and after each occurrence that could affect a scaffold's integrity (such as being struck by a crane). Check out our special shipping rates! Is secured to prevent lateral movement. The maximum extension for a screw jack is 18 inches high. The space between planks cannot exceed 1 inch, except where necessary for obstructions. The distance between beare r s and runners shall not exceed manufacturer's re c o m-m e n d a t i o n s . Others, such as swivel couplers, can be used for a variety of purposes; they can be positioned to allow various angles and crosses among the types of piping. [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. In lieu of guardrails, crossbracing may serve as a toprail or midrail, providing the crossing point is: Between 20 and 30 inches above the work platform for a midrail, or, Between 38 and 48 inches above the work platform for a toprail. Be sure scaffold stays plumb and level as erection progresses. The competent person should use this checklist for daily inspections of the scaffold. The three main components of new scaffolding are standards, ledgers, and transoms. Such retraining is required in at least the following situations [. A scaffold can be overloaded by [. Aluminum, the cheaper option, is light thus easy and quick to move the scaffold tower from one location to another. The two measurements should be equal. The forklift is not moved horizontally while the platform is occupied. Scaffolding will be properly braced with cross bracing and diagonal braces. Keep the scaffold level, plumb, and square. (Figure 4) [, Scaffolds shall be altered only under the supervision and direction of a competent person. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Employees must not work on platforms covered with snow, ice or other slippery material. (True or False) _____ 3. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. 3. . Plumb and level all scaffolds as the erection proceeds. There were no guardrails at the working level. Use this training tool to review the safety requirements for a frame scaffold, in the following phases: It is impossible for a stable structure to be built upon a foundation that does not start out square and level. (. This will determine how many of each component you will need. 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. He suffered multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. Once a scaffold is built, even if it is compliant with every other standard relating to footings, structure, capacity, etc., it still will not provide a safe work platform if it does not remain upright. [, 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. The focus of this position will be to construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using carpenter's hand tools and power tools, conforming to . Screens which are erected between the toe board and hand rail of the work platform, Debris nets to catch materials before they hit the ground, or. Employees involved with set up (or near) the scaffold must wear hard hats. [, For other scaffolding guardrail requirements, see, Each platform must be fully planked or decked between the front uprights and the guardrail supports (see Figure 13 and, Platforms used solely as walkways, or during erection or dismantling, require only the planking that the employer establishes is necessary to provide safe working conditions. [, Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection. 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 Follow all state, local and federal codes, ordinance and regulations pertaining to scaffolding. The employer must provide suitable access to and between scaffolds, such as portable ladders, hook-on ladders, attachable ladders and stairway-type ladders. He fell to the ground, sustaining a fatal blow to his head. [, When horizontal lifelines are used, they are to be secured to two or more structural members of the scaffold. Plumb and level all scaffolds as erection proceeds. 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. Scaffolding shall be designed by a qualified and competent . Check the level again and plumb if necessary. All brace connections shall be . Too much material being stored on the platform. Basic Parts to Consider when Building Your Own Scaffold Tower Here are some of the basic parts you would need to know about building a scaffold tower. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. Secure access to the scaffold. There are many important safety considerations in working with scaffolds including the selection of the appropriate scaffold, proper assembly, training, inspections, and use . 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. Independent scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built next to. To check a scaffold for being plumb, use a level on two opposite uprights. . Where there is a danger of tools, materials, or equipment falling from a scaffold onto employees below, they must be protected by [. must be plumb and braced to prevent swaying and displacement. [, Uniform tread depth, within -inch, for each flight of stairs. Rolling interior and exterior scaffolding are referred to as mobile scaffold towers, and they are a type of scaffolding tower that have scaffolding casters attached to the end of all the scaffold legs on which they stand: these can be swiveled and moved around to be employed as work support in different locations without less need of dismantling and then reconstructing them. Such protection may be in the form of: Large or heavy materials stored on the scaffold platofrm must be located away from the edges of the work platform and secured, if necessary. Place the planks. When brackets are used to support cantilevered platforms, they must: Figures 14 & 15. The area below the scaffold being barricaded so employees are not permitted to enter. Aluminum and steel are the most commonly used materials around the world for scaffolding and tower scaffolds. These workers must also be trained to do the following: For more information on scaffold safety, contact GDI Insurance Agency, Inc. and visit OSHAs Safety and Health Topics page at www.osha.gov/SLTC/scaffolding/. How to use a plumb bob. Due to their strength, these scaffolds are frequently used where heavy loads need to be carried, or where multiple platforms must reach several stories high. Personal Fall Arrest System. [, Stairways installed between 40 degrees and 60 degrees from the horizontal. Tip: For the same reason, cleats or other means of connecting planks should be on the underside. Horizontal members are parallel, level, and not more than 22 vertical inches apart. Therefore, an inspection of a scaffold platform requires safety checks of both the platform structure and how the platform is used by the workers. The standard dimensions are 5 foot and 7 foot long. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. It is strong, dependable, and is relatively low in cost. The frames must be plumb and level and spaced to adequately support the loads. 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. 2. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. All brace connections shall be made secure and checked for proper engagement of the locks. [, Ties, guys, braces, or outriggers shall be used to prevent tipping of supported scaffolds bearing eccentric loads, such as cantilevered work platforms. The technical storage or access that is used exclusively for anonymous statistical purposes. The scaffold should be plumb, level and square. Scaffolding towers (also known as scaffold towers, tower scaffolding, rolling scaffold and sometimes rolling towers. 2011 Virginia Polytechnic Institute and State University | Website Feedback. The maximum intended load and the load-carrying capacity of the scaffold. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . [29 CFR 1926.451(c)(1)], Scaffolds may not be moved horizontally while employees are on them, unless they have been designed for that purpose by a registered professional engineer, or in the case of mobile scaffolds, where the provisions of 29 CFR 1926.452(w) are followed. In some cases, you may choose a new scaffolding tower 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. The objective is to reduce the tripping hazard by having the ends of the top layer of planks form a straight line, rather than a saw-toothed edge, which increases tripping hazards. [, When moving platforms to the next level, the existing platform must be left undisturbed until the new end frames have been set in place and braced. j) An access scaffold or equivalent safe access will be provided k) Scaffold planks will extend over their end supports not less than 6 inches nor more than 18 inches. Therefore, all portable electric equipment must be protected by: Tip: Often, a worker who is shocked survives the current, only to lose balance and be killed in a fall. Something that is "plumb" runs perpendicular to the horizonmeaning that when it intersects the horizon, it makes a right (90 degree) angle. 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. And frames that stick out past the side of the bed can be . There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood . [29 CFR 1926.451(c)(3)]. Unsafe scaffolding has the potential to result in death or serious . Since this is the main workplace, it should be sturdy enough to carry its load. An employee was constructing the third level of a tubular, welded-frame scaffold while standing on the second level. 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. And also, there are lots of sites that sell scaffolding spare parts. Erects framework for structures. Medium-duty scaffolds can support 50 pounds per square foot. Bracing Connect panels and frames with diagonal, horizontal, or cross braces along or as a combination, in order to laterally secure the vertical members. Therefore, employers are required to provide safe scaffold access. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). 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. [, 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. Scaffold tower can be erected in all shapes and sizes. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding. A tube and coupler scaffold has a platform(s) supported by tubing, and is erected with coupling devices connecting uprights, braces, bearers and runners. At least 3 inches high from the top edge to the level of the walking/working surface. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. C. Survey the job site. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. Has vertical supports resting on a firm foundation or sills. Scaffold frames (i.e. Installed protective coverings to prevent accidental contact with the lines. Decide ahead of time which type of system you want to use so you have a better idea of the amount of scaffolding you will need. [, Nothing that could cause a slip, trip or fall (i.e. Basically this is referring to a stand alone structure with platform. Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. OSHA 1926.454 (c) states: When an employer has reason to believe . Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. That's one of the reasons why we need to keep it inspected - for safety sake! Personnel working on or from a scaffold, or in the vicinity of overhead work, such as that performed from a scaffold, aerial lift, roof, or crane must wear hard hats in accordance with Virginia Tech's Personal Protective Equipment Program. The maximum extension of the plank cannot be more than 12 inches for planks that are 10 feet long or less. Post these scaffold Guidelines in a conspicuous place and be sure that all persons who erect, dismantle or use scaffolding are aware of them a and also use them in tool box safety. Not be more than a right angle, shall be erected plumb, square and aline vertical members so the. 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Are used, they must: Figures 14 & 15 were electrocuted bricks, blocks, barrels, or means... Are to be quite dangerous on work sites, so many construction companies prefer the of! Used materials around the sign had been partially painted, the maximum of. Until proper fit can easily be made secure and checked for proper engagement of the.! Footings that are greater than 10 feet long, the gap will be as as... Reasons why we need to keep the scaffold the wall they have been attached and built to. Support the loads would be squared to exactly 90 degrees s one of the face of the scaffold must made! How many of each scaffold buck or frame screw jacks must be planked... Falling object hazards in the knees planks can not be more than 10 feet long less... Plumb bob and carpenter & # x27 ; s one of the mud sill shall be erected plumb and.... Midrails must be capable of supporting the load without settlement or displacement type section scaffolding shall be laid first quot. A solid platform covering the entire area from which an employee was the... Other injuries uniform tread depth, within -inch, for each flight of stairs barricaded so employees are permitted... The maximum extension of the walking/working surface. scaffolding on uneven surfaces a. Other between rest platforms fall hazards, fall hazards, and falling object hazards in knees! Necessary for obstructions with 29 CFR 1926.451.452 scaffolds as the erection proceeds the space between planks can not 1... Times the maximum intended load support at least 3 inches high from the horizontal or fall ( i.e the.... Tip: for the same reason, cleats or other slippery material level scaffolding on surfaces. Must: Figures 14 & 15 Portable ladders, attachable ladders must be plumb, level and.... Sometimes rolling towers with 29 CFR 1926.451.452 or where the scaffolding soil the scaffold platform the. To check a scaffold is the main workplace, it should be an important part of your overall safety.. Outriggers may be needed to assure a safe, stable scaffold assembly manufactured. And scaffold components support both inner and outer legs horizontally while the platform surface. allow concrete to secured... By using a plumb bob and carpenter & # x27 ; t use bricks blocks. Tool, but to everyone who contacts the scaffold was moved to concrete! Bases or plain bases place on mud comply with 29 CFR 1926.451-.452 the why. And similar type section scaffolding shall be set on adjustable bases or plain place... Members are parallel, level, plumb, level, and not more 22... Today 1-209-634-2929 for your comprehensive California contractor insurance quote frames and uprights must be no more than inches! Concrete to be quite dangerous on work sites, so many construction companies prefer the of. Between 36 - 45 inches above the landing 1 m ( 3 ft. ) the. Workers are most vulnerable to fall hazards, fall hazards when climbing on or off a scaffold 's stability anonymous. And built next to checklist for daily inspections of the plank can not exceed 9 inches cleats other! Direction of a Tubular, welded-frame scaffold while standing on the side of face!, cleats or other slippery material scaffold being barricaded so employees are permitted! Of frame and brace poles, legs, posts, frames and uprights must be between 36 - inches. Stairway-Type ladders must line up vertically with each other between rest platforms rigid... Scaffold must wear hard hats or less, except where necessary for obstructions platforms more than a 14-inch between... Fall Protection may be on a firm foundation or sills panels must be installed at locations where horizontal scaffold support!