Review Methodology
This page explains exactly how we evaluate and rank ladders.
Criteria we weigh
- Ladder type fit to the job. Step, extension, multi-position, telescoping, platform, step stool, attic, or specialty. Wrong type = unsafe.
- Duty rating. Type IAA (375 lb), IA (300 lb), I (250 lb), II (225 lb), III (200 lb). Our recommendation always exceeds user + tools + materials, with a comfortable margin.
- Working reach. Computed using manufacturer reach charts and a user reach of approximately 4 ft for step ladders. Extension ladders are evaluated at the 4-to-1 setup angle.
- Material. Fiberglass for any electrical exposure or work near power lines; aluminum for everything else where weight matters.
- Build quality. Rung fit, lock behavior, foot grip, label legibility, warranty length.
- Storage and portability. Folded footprint, weight, carry handles.
- Accessory compatibility. Stabilizers, levelers, standoffs, hooks, paint trays.
How we test
For featured ladders, we measure folded size and weight, confirm advertised reach against a tape, load-test the rated capacity at the ladder’s prescribed angle, and inspect feet, rungs, locks, hinges, ropes, and labels. We don’t publish a recommendation we wouldn’t climb ourselves.
Our calculators
The reach calculator, duty rating calculator, ladder match quiz, and placement visualizer output estimates. They’re meant to point you at the right category — not to override your manufacturer’s instructions.
When we update a recommendation
Guides are reviewed at least annually, plus whenever a recall, safety alert, or significant product change lands. The “Last reviewed” date at the top of every page tells you when the page was last touched.