Incline treadmill vs stair climber

How each machine works

An incline treadmill raises the front of the deck so you walk uphill. The incline is shown as a grade in percent: rise divided by run, times 100. A 15% grade is about 8.5 degrees. Some machines set it by motor, others with a pin or lever. Our treadmill incline explained article covers percent, degrees and console levels, and the incline converter works out the height climbed.

Stair climbers come in two main forms. A stepmill has a loop of revolving stairs, like a short escalator running downward. A stepper has two pedals that move up and down on hydraulic or air cylinders, or on a motorised linkage. Mini steppers are small enough to store under a bed; stepmills are full gym machines.

Side-by-side comparison

Ceiling height and footprint

On an incline treadmill you stand on a deck that is already a few centimetres high, and at full incline the front lifts further. On a stepmill you climb to a step that may be 20 cm or more above the base, plus the frame height, so your head moves up and down well above normal standing height. Measure your ceiling, and if you have low beams or a sloped loft ceiling, allow generous clearance. Any light fitting above the machine is worth checking too.

Footprint matters as much. A folding incline treadmill can be tipped up or folded flat. A stepmill is a large, heavy unit that stays where it is. A mini stepper is tiny, but it is a different experience from a full stair machine.

Weight, floors and noise

Stepmills are heavy, and most home rooms were not designed for gym equipment of that size. Check the machine weight against the room and whether it can be carried upstairs. Home incline treadmills and incline walking pads are usually 20 to 35 kg, which two people can handle.

Noise is mixed. A treadmill makes motor hum and footfall noise; the incline motor also whirs briefly when it changes. A stepmill's chain and steps can clunk. Mini steppers can squeak or thump. On upstairs floors, a mat under any of them helps. Our guide to reducing treadmill noise applies to both.

Note:Use the safety key, emergency stop and any handrails as the maker instructs. Check maximum user weight and room clearances in the manual before installing heavy equipment upstairs.

Range of uses

An incline treadmill also works flat, so the same machine can be used for walking, jogging or, on suitable models, running. Some incline walking pads tilt steeply, up to 20% or more, yet still slide away. That flexibility is why incline treadmills are more common in homes.

A stair climber does one thing. If stepping is what you enjoy and you have the space, a mini stepper is an inexpensive way to try it at home. If you want a full stair machine, look at the room and floor first. For incline models, see the best incline treadmills for home and the best walking pads with incline.

See incline treadmills for home →

Which to choose

• Limited space or a folding requirement: an incline treadmill or incline walking pad.
• You want flat walking and running as well as hills: an incline treadmill.
• Low ceiling or loft room: an incline treadmill, after checking clearance at full incline.
• You only want stepping and have very little space: a mini stepper.
• Large, strong ground-floor room and a commercial budget: a stepmill is possible.

Frequently asked questions

Is an incline treadmill the same as a StairMaster? No. A treadmill tilts a belt for uphill walking; a StairMaster-style machine has you climb steps. The motion and the space needed differ.

What incline is like climbing stairs? Stairs are much steeper than a treadmill grade. A typical home staircase is well over 50% as a grade, so a treadmill does not copy stairs exactly.

Can I put a stair climber upstairs? A mini stepper, yes. For a full stepmill, check its weight and your floor first, and seek advice if unsure.

Do incline walking pads fold? Many do. Check the folded size and how the incline lifts on the listing.