(h) ladder components made from timber materials Spaced, and be 107 cm to 127 cm (42 in to 50 in) wide, and have continuousĬleats which extend the full width of the ladder (g) a double cleat ladder must have 3 rails evenly Must be filled with close fitting and well secured filler pieces that are the (f) the spaces on the side rails between the cleats (4 in) cleats, and two similar nails on each end of the 64 mm (3 in) cleats The side rails, using three 57 mm (2 1/4 in) wire nails on each end of the 89 mm (ii) nailed directly onto the smaller surfaces of (ii) 19 mm x 89 mm (1 in x 4 in nominal) for ladder (i) 19 mm x 64 mm (1 in x 3 in nominal) for ladder Rails must not be less than 38 cm (15 in) nor more than 50 cm (20 in) (c) the distance between the inner faces of the side (b) side rails must not be notched, dapped, tapered Lengths from 5 m to 7.3 m (16 ft to 24 ft) (ii) 38 mm x 140 mm (2 in x 6 in nominal) for (i) 38 mm x 89 mm (2 in x 4 in nominal) for lengths Job site must meet the following minimum requirements: Job built laddersġ3.2 A portable wooden ladder made at the (2)Ě manufactured portable ladder must be marked for grade and use, and must be used in accordance with the manufacturer's instructions. (d) other standard acceptable to the board. (c) ANSI Standard A14.2-1990, Safety Requirements for Portable Metal Ladders, or (b) ANSI Standard A14.1-1990, Safety Requirements for Portable Wood Ladders, (a) CSA Standard CAN3-Z11-M81, Portable Ladders, Window Cleaning and Similar Building Maintenanceġ3.1 (1)Ğxcept as otherwise permitted by this Part, portable ladder design, construction and use must meet the requirements of Work Platforms Supported by a Crane or Hoist Part 13 - Ladders, Scaffolds and Temporary Work Platformsįree Standing Tower and Rolling Scaffolds Workers Compensation Act OCCUPATIONAL HEALTH AND SAFETY REGULATION For the most current information, click here. This archived regulation consolidation is current to Apand includes changes enacted and in force by that date.
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