Step Ladders, Step Stools and Work Platforms

Duty rating sets the load: reading Type IAA and 375 lb

Ladders carry a duty rating that includes you, your tools and materials. Type IAA is rated at 375 lb and Type IA at 300 lb, the two heaviest ratings; Type I is 250 lb, and lighter household types sit below that. Titles show the rating beside the height, for example a 4 ft fiberglass stepladder Type IAA 375 lb. Choose a rating above your body weight plus what you will carry, not just equal to it.

Fiberglass rails do not conduct electricity when clean and dry, which suits work near electrical equipment; aluminum is lighter to carry. Whatever the material, the ladder length is not your reach: the highest standing step is lower than the top, and you should never stand on the top cap. A common rule adds about 4 feet to the ladder height to estimate reach.

Folding step, twin ladder or work platform?

A folding safety step or step stool is for reaching a shelf, with a wide non-slip tread and a handrail on some models. A twin stepladder has steps on both sides, so two people can work or you can climb either way. Telescoping or multi-position ladders cover a range, such as 4 to 7.5 ft or 8 to 12.5 ft. Work-platform connector clips join a ladder to a platform for a wider working surface. Check folded size for storage.

Questions about Step Ladders, Step Stools and Work Platforms

What ladder height do I need for a 9 foot ceiling?

A 6 foot stepladder gives most adults a safe reach of about 10 feet, using the rule of ladder height plus 4 feet. For a 9 foot ceiling, that lets you work comfortably without standing on the top two steps.

Is fiberglass better than aluminum for electrical work?

Fiberglass does not conduct electricity when clean and dry, so it is the usual choice near electrical work. Aluminum conducts and is lighter. Either one can be unsafe near live lines, so keep a safe distance and do not rely on the material alone.

How should I set up a stepladder?

Open it fully until the spreaders lock, place it on firm level ground, and face the steps. Keep three points of contact while climbing, do not overreach, and move the ladder instead of leaning sideways. Never stand on the top step or cap.