The W60 publishes a 41.3 in by 16.5 in belt, which is the longest and the widest walking surface of any pad we track. Both dimensions matter for different reasons, and both matter more past 60 than they do at 30.
Length is stride and margin behind you.A short belt shortens your natural stride, and worse, it puts the back edge of the deck closer than you think it is. People drift backward when they stop paying attention, and a longer belt buys time before the drift matters. MERACH states the deck gives 33 percent more stride space, which is a comparative marketing claim rather than a measurement — but the 41.3 in itself is a measurement, and it is the largest number in the category.
Width is how much room you have to be imprecise. A 16.5 in belt gives you a few inches either side of each foot. On a narrower deck, a slightly uneven gait or a glance at a phone puts a foot on the frame rail, which on a moving belt is its own hazard.
The cost of all that deck is height and weight.The W60 is 6.5 in tall, the highest-profile pad we track, and 67.7 lb, the heaviest. Neither figure is hidden — both are published — but together they mean two things. One: the step onto the deck is the biggest in the category, and MERACH does not publish a step-up height, so the figure that actually decides whether you can get on safely is unstated even here. Two: a 67.7 lb machine with transport wheels is something you reposition occasionally, not something you tidy away daily. If the pad has to live under a sofa between sessions, read our guide on how to choose a walking pad before committing to this one.