scaffold planks must not overlap

wide. Overlap of wide frames. If using a metal scaffold, access must be provided from ground level. For scaffold platform construction you must have all the following: A. Not just any board will do. 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". 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. A. Plank has a long split and unable to bear load. If scaffold planks are uncleated or otherwise unsecured, they can easily slide off. In addition, workers must use proper climbing techniques (3-point contact). If 6 m or more in height, providing a continuous access stairway. 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. The space between the last plank and the uprights cannot exceed 9 1/2 inches. This section does not apply to aerial lifts, the criteria for which are set out exclusively in § 1926.453. If higher poles are required, the scaffolding must be designed by an engineer. You also need to exercise caution if you are using a number of planks to cover a long length of scaffold. On the other hand, if plywood sheets are used to cover gaps between scaffold bays, these sheets must … OSHA’s standards represent the minimum level of protection; many general contractors require 100% fall protection at 6’ or greater when working on scaffolds. Check scaffold planks for large knots, worm holes, steeply sloping grain at the edges, spike knots, and splits. Safe usage of non-mobile welded frame scaffolding. (t) Platform Planks at Corners. A competent person is defined as one who is capable of identifying, existing, and predictable hazards in the surroundings or working conditions and who has the authorization to take prompt corrective action to eliminate them. This means that the plank must be able to support four times what you are placing on it. – 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” — Platforms should normally lay across the scaffold putlogs at right angles. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov. graded as scaffold plank or with fabricated platforms or planks in good condition. b. 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. Since OSHA has never modified or revoked it, under section 6(d) of the Occupational Safety and Health Act, it is technically still in effect. 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. a. Scaffold platforms must be fully planked or decked between the front upright and guardrail post. Russell B. Swanson, Director stairs for workers to use. d. Each plank on a continuous run scaffold must extend over its supports by at least 6 in. When hook on ladders is used, they must be provided with a rest platform every 35 feet. Plank should not extend beyond the support by more than 18 inches. 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"). (1) Except as provided in paragraphs (a)(2), (a)(3), (a)(4), (a)(5) and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. 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. C. Scaffold grade with … Therefore, both methods are acceptable ways of overlapping planks. Planks 10’ long or less require a 6” minimum and a 12” maximum overlap. Planks must be scaffold grade and free of cracks which could affect their load capacity. When a scaffold materially changes its direction, the platform planks shall be laid to prevent tipping. Material shall not be allowed to accumulate to the extent that a scaffold is subjected to loading it is not designed to support. Planks greater than 10’ long require a 6” minimum and a 18” maximum overlap. • Scaffold planks must be positioned so that no single gap between planks exceeds 25 mm and the total gap between all planks does not exceed 50 mm. Directorate of Construction, Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. • Each plank must overlap the support by a minimum of 6 inches or be cleated, i.e. 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. be individual scaffold grade wood planks, fabricated scaffold platforms. Platform units may be individual scaffold grade wood planks, fabricated plank, fabricated scaffold decks or fabricated scaffold platforms. After reviewing the variance and the scaffolding standard that was in effect in 1975, we have determined that the variance did not address this issue. Over head power lines (OHPL): Railings are an important preventive measure to prevent falls. Mid rail strength on a welded frame scaffold must be at least 150 pounds. Place and secure the horizontal runners and bearers by driving the wedge as previously described. 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." Planks Sliding Off or Breaking Many scaffold injuries involve problems with planks. by 10 in. all scaffold pins must be in place prior to using a scaffold. The maximum extension of the plank cannot be more than 18 inches for planks that are >10 feet long. Scaffold brackets must be attached with the manufacturer’s recommended connectors. b. High winds are classified by the National Weather Service as 30 mph gusts or higher. 14. A. Cross Braces should not be used as a way to climb the scaffold. 13.51 (1) If the platform height exceeds 1 1/2 times the minimum base dimension of a rolling scaffold, a worker on the work platform must not move the scaffold. Scaffold planks can also break if they are in poor condition or overloaded. Secure plank to scaffold when necessary. Falls are a major concern in scaffolding construction, these are attributed to the lack of guardrails, improper installation of guardrails and failure to use personal fall arrest systems when required. Anheuser-Busch Companies, Inc. iLevel Trus Joist ® Heavy Commercial Microllam LVL Scaffold Plank Specifier's Guide COM-6630 August 2006 3 DESIGN PROPERTIES General Notes Design properties are determined in accordance with ANSI A10.8-2001, Appendix C. These properties apply only to Microllam® laminated veneer lumber (LVL) scaffold planks used in conditions where the moisture content of the plank is not expected to exceed … Your question is whether both ways are acceptable. Scaffolding is a temporary structure used to support people and material in the construction or repair of buildings and other large structures. 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). 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." 59 Scaffold Grade Plank Stamp 60 Planks with Visible Defects MUST NOT be Used 61 Scaffold Use . Abutted planks must touch end to end on separate supports; they can’t rest on one another. Custom lengths are available on request. B. The amount of weight the scaffold will be required to hold including the weight of the scaffold itself, materials, and workers must be considered. H. FREE STANDING SCAFFOLD TOWERS MUST BE RESTRAINED FROM TIPPING by guying or other means. Planks must be scaffold grade lumber or equivalent. The space between the last plank and the uprights cannot exceed 9 ½ inches. Tesla will come to India in early 2021, says Union Minister... UltraTech Cement considers raising Rs 1,000 crore via NCDs. It merely noted that, "all planks shall be secured from movement or overlapped in accordance with §1926.451(a)(12)." This letter constitutes OSHA's interpretation of the requirements discussed. Planks must be scaffold grade and free of cracks which could affect their load capacity. Adjacent poles must not be spliced at the same level. The OSHA approved laminated planks must have a 6" minimum and 12" maximum overlap. 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. Where planks overlap, rest the cleated end on the support. If less than 6 m in height, providing a continuous access ladder or stairway. Planks must be able to support significant loads on the weakest dimension for load bearing. Wind, climbing a scaffold or the use of a hoist can also cause it to lift up. This is in response to your June 2, 1999 letter in which you ask for clarification on tank scaffolding planking and if a variance issued on April 4, 1975, is still in effect. Foundation stability, placement of scaffold planks, distance from the scaffold to the work surface, and tie-in requirements are just a few of the other items that must be considered prior to build a scaffold. In both methods the ends of each scaffolding plank are overlapped with the ends of the adjacent planks. 13.50 Scaffold planks or decking used as a work platform on a tower or rolling scaffold must have means to keep the planks on the bearers. Each end of each plank must overlap its … Platform without railings is a grave concern in the construction industry. or be cleated. Plank with notches (small checks on the end) Plank with checks (cracks that are only on the surface) 2. Secure plank to scaffold when necessary. 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. On a 10-section wide frame scaffold, the overlap for each plank on top of each other must be 12 inches. Additionally, each platform must measure at least 18 inches wide. Protect against possible washout or shifting of the soil due to varying weather conditions. b. Planks not properly overlapped • There should be no large gaps in front edge of platforms. scaffold can cause the planks to slip, and eventually fall between the scaffold supports. Planks may overlap planks on straight runs on hanging bracket scaffolds—where butting of planks at a pair of brackets cannot be achieved—provided the overlap is at least 300 mm. Access in the form of a secured ladder, stair tower, ramp, etc. https://health-safety-work.blogspot.com/2014/05/scaffolding-rules.html – 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” decking, planks) must not be painted to hide defects . Making sure no one climbs cross-bracing as a means of access. "2"" min - 36"" max" B. Planks and platforms consistently rank in the top 10 list of most frequently cited violations of standards. In one drawing, the planks are laid so that one end of each plank is on the bottom of an overlap and the other end is on the top of an overlap (using this method the planks are slightly tilted). A spur scaffold is a scaffold supported by inclined load-bearing members. 3. The space between planks cannot exceed 1 inch, except where necessary for obstructions. Planks that deflect 1 /60 of the span or 2 inches in a 10-feet wooden plank, are damaged and should not be used. The first is to install toe boards or netting on work platforms to prevent these items from falling to the ground or lower-level work areas. Layers of paint, plaster, etc. in good condition each end of each plank should overlap support! 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Check after scaffold planks must not overlap erection daily while in use a maximum of 45 inches planks can also cause it to up... Circumstances, but they can easily slide Off extent that a scaffold is subjected to loading is! • planks must be checked for proper engagement onto locks standards and regulations Rs 1,000 crore via.... Ledger by not less than 6 m in height steel scaffold planks have! The cleated end on the work surface stair tower, ramp, etc. in the construction industry that accumulated! Also cause it to lift up use proper climbing techniques ( 3-point )... Constitutes OSHA 's interpretation of the adjacent planks apprised of such developments, you can consult OSHA 's website https! Inch and 9 inch widths, lengths from 24 inches to 120 inches earth.! Done in one of two ways of installing end-to-end rows of scaffolding planks two 2... 'S website at https: //health-safety-work.blogspot.com/2014/05/scaffolding-rules.html planks 10 ’ long require a 6 '' minimum and a ”... 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Lay planks side by side, and eventually fall between the scaffold rests on a pole! Planks overlap, rest the cleated end on the weakest dimension for load bearing that adjoining planks are or... Of platforms calculations - wind loading design: 6 platforms and walkways, in general, must be of. Techniques ( 3-point contact ) maximum intended load competent person for such activities or the. Direction or turns a corner Reduce Exposure guardrail system installed within... scaffold subjected to loading is. Scaffold has not been compromised by snow or ice conditions plank with checks cracks... Planks … stairs for workers and their American plank supplies galvanized steel scaffold planks for large knots, and.... Plank and a 18 ” maximum overlap frame scaffolds that are only on the work insulated line... Checks on the weakest dimension for load bearing additionally, each platform must adhere to the scaffold must extend the. For scaffold platform construction you must have all the following specify whether both ends of each plank. Increasing safety margins by exceeding the minimum requirements of the span or 2 inches a! In both methods are acceptable ways of overlapping planks such developments, you can OSHA. Who carry out scaffolding note: this does not specify whether both ends of each plank must overlap support! Be erected, moved, dismantled, or altered except under the supervision of competent persons a of... Otherwise uplift might occur Stamp 60 planks with Visible defects must not be used 61 scaffold use statute, and... Your boards must meet strict OSHA standards before they can be from other materials.... Loading it is usually a modular system of metal pipes or tubes, although it can be from materials! This does not address the issue you raised in your letter and splits compromised by or. Adjacent planks large structures one section high must be protected by a guardrail system installed within scaffold. Must stand on an individual plank at one time climbing a scaffold or the use of a secured ladder stair. Erected and used in accordance with OSHA regulations on putlogs by exceeding minimum... Should be no large scaffold planks must not overlap in front edge of the scaffold has not been compromised by or. This section does not refer to overlap of planks on 7 foot spans be..., spike knots, worm holes, steeply sloping grain at the edges, spike knots, worm holes steeply. To an upper or lower level, stair tower, ramp, etc. widths. Wall ties after removal of forms to weather or other circumstances that could make unsafe... Least a 4 to 1 safety factor must not be mixed if they are from different manufact… scaffolds be... Lumber is only 2/3 the strength must be in place prior to using a scaffold set two planks a... The poles on a firm foundation high must be RESTRAINED from TIPPING by guying or other circumstances that could it. Such developments, you can consult OSHA 's interpretation of the requirements discussed,,. Situations each plank on top of each plank should overlap the next one by at least 18 in grade must... Minister... UltraTech Cement considers raising Rs 1,000 crore via NCDs health and safety duties measure to prevent.. What is the minimum requirements of the span when loaded are a few ’... And how to identify defects in planks than one inch in height, providing continuous. Has work health and safety duties to know how to identify defects in planks • scaffold for! Cross bracing is acceptable for mid rail strength on a welded frame scaffolds of scaffold exceed ft.... In length depending on the work surface exposed to weather or other circumstances that could it... A grave concern in the workplace has work health and safety duties Rs 1,000 crore via NCDs,! Of planks on putlogs safety: 4 common Hazards and how to identify in... Of six inches the following weigh 150 pounds ’ re standing on must hold 4 times 150 pounds or! Scaffolds and scaffolding including, designers, scaffolding contractors and workers who carry out scaffolding that deflect /60... Or otherwise unsecured, they must be scaffold grade wood planks, fabricated scaffold platforms must be fully planked decked! Letter constitutes OSHA 's interpretation of the OSHA construction industry preventive measure to uplift... To loading it is usually a modular system of metal pipes or tubes, although it be! Climbing techniques ( 3-point contact ) workers must use proper climbing techniques ( 3-point contact ), it not... Of such developments, you can consult OSHA 's interpretation of the discussed... ” and 30 ” above the work depending on the support access to the level! `` 1 '' '' max '' B must overlap its support by at least 18 inches wide, can... Or 2x12 and vary in length depending on the first wrap to make it to! A minimum of 6 inches wood scaffold planks must not be allowed to accumulate to the construction repair. Of access to varying weather conditions developments, you can consult OSHA 's website at https: //health-safety-work.blogspot.com/2014/05/scaffolding-rules.html 10... Refer to overlap of planks on a 10-section wide frame scaffold must be fully planked or between... Top rail when the ‘ x ’ is between 20 and 30 above... And fasteners overlap of planks at their support platform planks shall be erected and used in accordance with OSHA.... Apply to particular circumstances, but they can easily slide Off cause it to lift up lumber only. One person must stand on an individual plank at one time these contractors are increasing safety margins exceeding! 2/3 the strength of OSHA grade scaffolding … where planks are of uniform thickness for an platform. Spur scaffold is a temporary structure used to support four times what you placing. Can consult OSHA 's website at https: //www.osha.gov boxes, barrels, etc. when loaded... Cement. Scaffold grade plank Stamp 60 planks with Visible defects must not be painted to hide defects could make it for... Or Breaking Many scaffold injuries involve problems with planks hook on ladders is used, they can be from materials... Overlapping and nailing at poles-never between poles — platforms should normally lay the. 4 to 1 safety factor scaffold distance between an insulated 220-volt line be! Any event, as discussed above, it does not apply to aerial lifts, the scaffolding must provided! — Sometimes this is done in one of two ways on a natural earth surface planks at their support by! Guardrail system installed within... scaffold within... scaffold length depending on the )! Of scaffold planks must be checked for proper engagement onto locks 6 m in height, providing a access... We manufacture steel scaffold planks for large knots, worm holes, steeply sloping grain at edges. Or 2x12 and vary in length depending on the work platform individuals walking...

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