As more appliances and gadgets accumulate in your house, space becomes smaller and smaller with each acquisition. If you buy a home treadmill, it requires a bigger space for you to move around. You should compromise, especially if you live in the city and your house is space challenged.
Power-folding Or Shock Assisted (where you get some help folding the treadmill). This helps to save the strain on your back. Power fold-up treadmills are few and far between but basically you press a button and the treadmill folds and unfolds itself.
When you decide to buy a folding treadmill, you should not only consider the space you will save but see to it that you will not sacrifice other features you need. There are some things you must consider when you buy a folding treadmill. It is important for you to find folding treadmills that could be easily folded up or down without exerting too much effort.
Most folding treadmills are equipped with hydraulics, making it a breeze to fold up or down. There are some that require power lifting. Regardless, remember to always lift with your legs, and not with your back bent over.
Folding units, by the nature of their design, are generally not as stable as non-folding machines. (That doesn't mean they are not stable, it just means they are not AS stable). This is an important consideration when buying. According to Runner's World, stability is the most important quality of a good treadmill. For example, you don't want the treadmill to shake or wobble when you pick up your pace.
While there are a number of factors that contribute to stability (like user weight capacity, unit weight, quality of construction, etc.) foldability is one of them. This is why, if you look at stability ratings for various treadmills, non-folding machines almost always come out on top. This is also why most commercial or health club treadmills do not fold.