It is important to know how to identify defects in planks. 2. Custom lengths are available on request. Scaffold planks that have accumulated layers of paint, plaster, etc. a.Scaffold platforms and walkways must be at least 18 in. Cross bracing is acceptable for mid rail if cross point is between 20” and 30” above the work platform. A scaffold sitting idle may be exposed to weather or other circumstances that could make it unsafe for use. • Scaffold planks must be positioned so that no single gap between planks … Failure to install all the required components such as baseplates, fittings, and fasteners. — This will create a firm surface for workers and their In both methods the ends of each scaffolding plank are overlapped with the ends of the adjacent planks. Plank should not extend beyond the support by more than 18 inches. Mid rail strength on a welded frame scaffold must be at least 150 pounds. and overlap each other by at least 12 in. Your boards must meet strict OSHA standards before they can be used on your project. "2"" min - 36"" max" B. For scaffold platform construction you must have all the following. Cross Braces should not be used as a way to climb the scaffold. e. Spans of 2 in. Scaffold Platform Construction . Plank Thickness Max. Do not use cleats elsewhere on the plank to prevent splitting. The best solution for a particular job will depend on factors such as the loads that will be present on work platforms, providing workers with safe access and fall protection, and the number of work levels. Loads on planks must be evenly distributed and not exceed the allowable loads for type of plank being used. Note: This does not refer to overlap of planks on putlogs. Abutted planks must touch end to end on separate supports; they can’t rest on one another. The platform shall not deflect more that 1/60 of the span when loaded. Safe usage of non-mobile welded frame scaffolding. Scaffold Safety: 4 Common Hazards and How to Reduce Exposure. Set two planks on the first wrap to make it easier to reach the fourth rosette up. Each end of each plank must overlap its … Planks greater than 10’ long require a 6” minimum and a 18” maximum overlap. An uncleated scaffold planks must extend over the end to support a minimum of six inches. Protect against possible washout or shifting of the soil due to varying weather conditions. The space between the scaffold planks must be no more than one inch. Scaffold legs must bear on base plates and these shall rest on either firm foundation or mudsills. Make sure … is required whenever there is 24” vertical change to an upper or lower level. Platforms fully planked or decked. The purpose of using pins to lock a scaffold vertically together is to prevent uplift. A ledger must be long enough to extend over two pole spaces, and it must overlap the poles at the ends by at least 4 inches. The standard does not specify whether both ends of each plank must overlap the same way. (t) Platform Planks at Corners. Not more than 1-inch gaps. All the necessary components need to be assembled before starting the work. Adjacent poles must not be spliced at the same level. If you require any further assistance, please do not hesitate to contact us again by writing to: Directorate of Construction - OSHA, Office of Construction Standard and Compliance Assistance, Room N3468, 200 Constitution Avenue N.W., Washington D.C. 20210. If using a metal scaffold, access must be provided from ground level. A. Guardrails are required on welded frame scaffolds that are 10 feet high or more. — Sometimes this is hard to do, especially when the scaffold changes direction or turns a corner. Platforms should reach as close to the uprights as possible, no more than one inch of space without barriers. stairs for workers to use. A scaffold that is erected but not immediately put into service, or not used for more than 21 consecutive calendar days, must be tagged with a red tag until inspected by a competent worker. 3. Executive Offices To be used for scaffold plank, solid-sawn lumber must be scaf-fold grade, nominal 2x10 inches ( 1 1⁄ 2 x 9 1⁄4 or 11⁄2 x 9 1⁄ 2 inches) or larg e r. Among the wood species used for solid-sawn scaffold plank, South-e r n yellow pine and Douglas fir are a p p r oved for the longest spans and heaviest loads. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. All braces must be checked for proper engagement onto locks. missing parts due to area obstructions). If higher poles are required, the scaffolding must be designed by an engineer. — Platforms should normally lay across the scaffold putlogs at right angles. Plank has a long split and unable to bear load. Planks must be scaffold grade and free of cracks which could affect their load capacity. – Scaffold frame is covered from front to back – No more than 1” spacing between planks – No more than 10” space from backside of frame – Must bear on supports at least 6” •Cleat if planks move or cannot make minimum – For continuous runs, planks must overlap 12” Material shall not be allowed to accumulate to the extent that a scaffold is subjected to loading it is not designed to support. 132 An employer shall ensure that a wood plank in a scaffold (a) is at least 50 mm thick by 250 mm wide, (b) has a span not longer than 3 m, (c) extends at least 150 mm and not more than 300 mm beyond a supporting member, and (d) is laid flat with an overlap of 300 mm with another plank, with the centre of the overlap directly over a bearer. Do NOT use objects (ladders, boxes, barrels, etc.) The amount of weight the scaffold will be required to hold including the weight of the scaffold itself, materials, and workers must be considered. Scaffold boards (also called scaffold planks, walkboards, and OSHA boards) are an extremely important component to your scaffolding system as they carry your workers and the weight of your materials. Planking shall have at least 12 inches of overlap and extend 6 inches beyond center of support, or, be cleated at both ends to prevent sliding off supports. 6'' to 12'' or be cleated. Power lines: Keep scaffolds 10 feet or more from power lines (or 3 feet, if lines are less than 300volts), unless you are sure the power lines are de-energized. scaffold can cause the planks to slip, and eventually fall between the scaffold supports. The space between planks cannot exceed 1 inch, except where necessary for obstructions. All poles must be setup perfectly plumb. Scaffold platforms above one section high must be provided with safe access. c. Single-span planks must be cleated at both ends to prevent planks from sliding off their supports, or, must If scaffold planks are uncleated or otherwise unsecured, they can easily slide off. The second drawing shows the planks laid so that both ends of each plank are either on the bottom or the top of their respective overlaps (using this second methods each plank lays flat). Ensure the scaffold has not … * Using a horizontal frame separation distance of seven feet, the maximum plank extension over the end support shall be no more than 12 inches if guardrails are not used to block access to the area. Moisture from standing water, as well as point-loading from the … Therefore, both … FOR ROLLING SCAFFOLD THE FOLLOWING ADDITIONAL RULES APPLY: DO NOT RIDE ROLLING SCAFFOLDS. High winds are classified by the National Weather Service as 30 mph gusts or higher. Beyond having a qualified person overseeing the design, it’s important to closely exam the worksite to ensure that workers will be able to do their jobs safely during all phases of scaffolding assembly, use and disassembly. Never hang brackets from wall ties after removal of forms. Fabricated scaffold planks and platforms unless cleated or restrained by hooks shall extend over their end supports not less then 6" nor more than 12". Section 1926.451(b)(7) states, "on scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement." The scaffold distance between an insulated 220-volt line must be at least three feet. False. Using horizontal frame separation distance of seven feet, the maximum plank extension over the end support shall be no more than 12 inches, if guardrails are not used to block access to the area. Work shall not be permitted during high winds. On scaffolds where planks are laid end to end (or abutted) without overlapping, each end must rest on its own support, known as a "putlog." It’s common to use lapped scaffold planks to cover gaps around the corners of scaffolding but only when safely secured. Also, from time to time we update our guidance in response to new information. Planks must be scaffold grade and free of cracks which could affect their load capacity. C. If less than 6 m in height, providing a continuous access ladder or stairway. graded as scaffold plank or with fabricated platforms or planks in good condition. NHAI Set to Make FY 2021 the Best Year of Highway... How to add Macro Fibers into Concrete during mixing || FIBERCRETE®, Concrete Finishing Techniques || FIBERCRETE®. Over head power lines (OHPL): platform requirements. Sales Office 1705 South Evans St. Greenville, NC 27834 252-756-3862; Warehouse Address 1002 North Pitt St. Greenville, NC 27834 252-756-3862; Monday - Friday https://health-safety-work.blogspot.com/2014/05/scaffolding-rules.html It merely noted that, "all planks shall be secured from movement or overlapped in accordance with §1926.451(a)(12)." Top rail shall be at least 36 inches to a maximum of 45 inches. Place and secure the horizontal runners and bearers by driving the wedge as previously described. Cross bracing is acceptable in place of top rail when the ‘x’ is between 30 and 48 inches above the work surface. — In these situations each plank should overlap the next one by at least 12 inches. Dangerous splits may be hidden underneath these coatings. Planks used for each platform must adhere to the same weight capacity as the scaffolding itself. Wooden Platforms (i.e. be individual scaffold grade wood planks, fabricated scaffold platforms. All braces must be checked for proper engagement onto locks. A spur scaffold is a scaffold supported by inclined load-bearing members. A scaffold five feet wide, 35 feet in length, and 30 feet high with frame spacing of seven feet must have horizontal securement every 20 feet and vertically-in every 20 feet. The OSHA standard requires fall protection must be used when work heights reach 10’ or more. Where platforms overlap to create a running scaffold, the overlap must occur only over a support and shall not be less than 12 inches unless nailed together. Planks and platforms consistently rank in the top 10 list of most frequently cited violations of standards. H. FREE STANDING SCAFFOLD TOWERS MUST BE RESTRAINED FROM TIPPING by guying or other means. Unless planks are nailed or otherwise restrained from movement, the overlap must be at least... 12 inches. Work platforms and walkways must be at least 18 in. must not be stored on overhangs. a. Scaffold plank must have at least 12” of overlap and shall extend not less than 6” nor more than 12” beyond the centers of their end supports (bearers). St. Louis, MO 63118-1852, RE: Subpart "L" - Tank Scaffolding; methods of overlapping scaffold planking. Scaffold grade with … 5. The maximum intended load of a 10-inch wide, two-inch nominal thickness wood scaffold plank platform with the scaffold frames seven feet apart horizontally is approximately 175 pounds. When hook on ladders is used, they must be provided with a rest platform every 35 feet. Secure plank to scaffold when necessary. Like the current standard, the 1975 standard did not address this issue (section 1926.451(a)(12), stated simply that "all planking of platforms shall be overlapped (minimum 12 inches), or secured from movement"). The planks that meet the corner ledger at an angle shall be laid first, extending over the diagonally placed ledger far enough to have a good safe bearing, but not far enough to involve any danger from tipping. All four sides should have diagonal bracing attached. Section 1926.451(b)(7) states, "on scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement." 12.Work platforms must be fully planked either with lumber that has been properly inspected and graded as scaffold plank or with fabricated platforms or planks in good condition. 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Each platform must adhere to the construction or repair of buildings and other large structures erected and in. Scaffolding … where planks are uncleated or otherwise unsecured, they must scaffold. Response to new information is used, they must be used on your project planks. 10-Feet wooden plank, have at least 18 in, lengths from 24 inches to inches. Purpose of using pins to lock a scaffold sitting idle may be affected by changes to OSHA rules and inches! For workers to use a job-built pole scaffold should not extend beyond the support by a guardrail installed! Than 6 inches components need to be followed while construction for safety: 4 common Hazards and they...
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