Buying a treadmill

Ignore the 40 workout programs. Five things decide whether a treadmill works for you.

1. Weight capacity, with room to spare#

Look for a maximum user weight at least 50 lb above your current weight. Machines run cooler, quieter and longer when they're not near their limit.

2. Motor rating#

For walking, a continuous-duty rating (CHP) of about 2.0–2.5 is plenty for most people; heavier walkers do better near 3.0. Peak horsepower numbers are marketing.

3. Deck size and step-up height#

A belt about 20 inches wide and 55 inches long feels roomy for walking.
Lower step-up height is easier on knees and balance.
Stand on it in the store if you can.

4. Handrails and the safety key#

Long, sturdy side rails help while you build confidence. Make sure there's a clip-on safety key and a big stop button within easy reach.

5. Where it will live#

Measure the space, including about 2 feet free on each side and 6 feet behind.
Folding decks save room but check the folded height.
Upstairs apartments: look for good cushioning and use a mat.

Things you can skip#

Built-in screens, subscriptions, very high top speeds and steep incline ranges. Nice to have; none of them get you on the belt.

Buying a used treadmill → Treadmills for bigger bodies →

Last reviewed October 30, 2026 · Updated November 1, 2026 · Sources · General information, not medical advice.

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