- Non-self-supporting ladders, extension ladders or other ladders that must lean against a wall or other support, are to be positioned so the horizontal distance from the top support to the foot of the ladder is about 1⁄4 the working length of the ladder.
- For job-made wooden ladders, that angle should equal about 1⁄8 the working length to minimize the strain of the load on ladder joints that may not be as strong as on commercially manufactured ladders.
- Ladder rungs, cleats, or steps must be parallel, level, and uniformly spaced when the ladder is in position for use. Rungs must be spaced between 10″-14″ inches apart.
- For extension trestle ladders, the spacing must be 8″-18″ inches for the base, and 6″-12″ inches on the extension section.
- Rungs must be skid-resistant and so shaped so feet cannot slide off
- Keep laddrs free of oil, grease, wet paint, and other slipping hazards.
- Wood ladders must not be coated with any opaque covering, except identification or warning labels on one side rail.
- Foldout or stepladders must have a metal spreader or locking device to hold the front and back sections in an open position when in use.
- When two or more ladders are used to reach a work area, they must be offset with a landing or platform between the ladders.
- The area around the top and bottom of ladder must be kept clear.
- Ladders must not be tied or fastened together to provide longer sections, unless they are specifically designed for such use.
- Never use a ladder for any purpose other than the one for which it was designed