How to Buy an Extension Ladder

Extension ladders have two equal lengths that slide up and down. The U.S. Consumer Product Safety Commission reported over 65,000 ladder accidents in one year. Knowing the different types of ladders and how they work before you buy may ensure long and safe use.

Instructions

Difficulty: Moderately Easy

Ladder Overview

1. Measure the maximum height you need to access and add 3 rungs for safety. Extension ladders come in standard sizes: 16, 20, 24, 28, 32, 36 and 40 feet.
2. Remember that the ladder's length differs from usable length.
3. Add your weight and the weight of materials you intend to carry up the ladder for load capacity.
4. Choose the ladder type that will suit your load capacity. General household use rates 200 lbs. for type III; commercial 225 lbs. for type II; industrial 250 lbs. for type I; heavy-duty industrial 300 lbs. for type IA and commercial heavy-duty 375 lbs. for type IAA.
5. Buy a ladder with D-shaped over circular rungs. The D-shape or flat surface offers greater stability and comfort for your feet.

Ladder Material

6. Select a wooden extension ladder for economy and a nonconductive material.
7. Pick an aluminum ladder for its lightweight, strength and corrosion resistance.
8. Buy a fiberglass ladder for strength, value, corrosion resistance and another nonconductive material.

Ladder Defects

9. Look for sharp edges, dents and step defects on metal extension ladders before buying.
10. See if the wooden ladder has splits, chips or cracks present in the wood.
11. Spot any nicks or surface defects on the fiberglass ladder.
12. Check for loose parts like rungs and brackets on any model.

Tips & Warnings

• Buy extension ladders at any home outlet store, hardware or paint shop.
• Know that the ladder's size doesn't extend to that length. For example, a 20-foot ladder extends to 17 feet and a 32-foot ladder lengthens to 29 feet.
• Read safety instructions and set-up before using a new ladder.
• Never use a metal ladder around power lines.

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