How to Choose a Ladder

A ladder is the one tool in your garage that can put you in the hospital if you buy the wrong one. Pick by the two numbers printed on the side rail — duty rating and height — and the material that matches where you’ll actually use it, and you’ll own a ladder that outlasts three houses.

Start with duty rating — it’s the number that matters

Every ladder carries an ANSI/OSHA duty rating that caps the total load it can safely hold: you, your clothes, your tools, and whatever you’re carrying up. This is not a suggestion. A 200 lb person in work boots holding a full drill and a bucket of fasteners is easily over 250 lb, and cheap ladders fail at their rating, not above it.

Tip: Type IA (300 lb) usually costs only a few dollars more than Type I but gives you real headroom for tools and cold-weather layers. It’s the rating we point most people toward.

Fiberglass vs. aluminum: it’s about electricity

The material question has one dominant answer: if there is any chance you’ll be near power lines, service entrances, or overhead wiring, buy fiberglass. Aluminum conducts electricity and has killed people who brushed a live line while cleaning gutters. Fiberglass doesn’t conduct, so it’s the standard for electricians and the safe default for everyone.

Aluminum still has a place. It’s lighter, cheaper, and rust-proof, which makes it fine for a painter working indoors well away from wiring, or for a lightweight step-stool. But for a do-everything outdoor ladder, fiberglass from Werner, Louisville, or Little Giant is worth the extra pound or two. You’ll find both materials across our ladders selection.

Match the ladder style to the job

Height and reach depend on the style. A stepladder is self-supporting and made for open floor space; an extension ladder leans against a wall and reaches high; a multi-position (articulating) ladder folds into a stepladder, an extension, or a scaffold base and is the best single purchase if you can only own one.

• Step stool (2–3 ft): Changing bulbs, reaching cabinets. See step stools.
• Stepladder (4–8 ft): Painting walls, ceiling fans, closet shelves. The workhorse.
• Extension ladder (16–40 ft): Gutters, roofline, second-story windows.
• Multi-position / articulating: Stairs, uneven ground, and swaps between step and lean setups.
• Platform / podium ladder: Standing comfortably for long jobs with tools at hand.

Your working height is roughly your standing reach plus the height you stand at, not the ladder’s length. On a stepladder, plan to stand no higher than the second step from the top. On an extension ladder, the top should extend at least 3 feet above the roof edge you’re stepping onto, and the base should sit one foot out for every four feet of height (the 4-to-1 rule).

The features that separate good from junk

Once duty rating, material, and height are settled, a few details decide whether the ladder feels safe or sketchy underfoot. Look for these before you swipe.

• Slip-resistant feet: Wide rubber shoes that pivot; on extension ladders, swing-out feet with spikes for grass.
• Deep, serrated steps: Your boot should sit flat and grip. Skinny round rungs get tiring fast.
• A real top cap / tool tray: Molded slots for a drill, holes for fasteners, and a paint-can hook keep both hands free.
• Rock-solid spreader braces: The metal arms that lock a stepladder open should snap firmly with no wobble.
• Rope-and-pulley on tall extensions: Raising a 28-footer by hand is miserable; a pulley is worth it.

Tip: Set up a portable work light before you climb into a dim attic or eave — most ladder falls happen when you can’t see the footing.

Climb safe — the habits that prevent falls

The best ladder can’t save you from bad technique. Ladder falls send hundreds of thousands of Americans to the ER every year, and nearly all of them trace back to a handful of avoidable mistakes.

• Keep three points of contact — two feet and a hand — on the ladder at all times.
• Never stand on the top cap or top step of a stepladder.
• Don’t overreach; your belt buckle should stay between the rails. Move the ladder instead.
• Set all four feet on firm, level ground. Never shim with bricks or scrap wood.
• Wear grippy work gloves and add the right safety gear for overhead and roof work.

Pick by your project

Frequently asked questions

Buying a ladder is one of those decisions where a few minutes of advice from someone who has climbed a thousand of them beats any spec sheet. Bring your project to your local independent hardware store and get sized up in person, or ask us here — we’ll help you land on the right rating, height, and material the first time.