Treadmills weight impact

Thanks for all the advice. I am now somewhat ambivalent about the purchase 🙂 Our contractor says it shouldn’t be problem…so maybe a bike is the way to go

nednedx

in General Discussion 6 years ago

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nednedx

in General Discussion 6 years ago

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I am considering getting a treadmill that weighs between 350 – 450lbs. I plan to put this either on the 2nd or 3rd floor of a brownstone. There are no structural issues in the house…however, I worry about the impact of such a machine with a runner on it for additional weight. Any precautions that one should take or consider ? Many thanks in advance.

stevecym | 6 years ago

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you may want to check what the “live load” rating would be for wood joists on these old houses. people do put water beds on second floors and one of those holding 50 gallons of water would weigh about 400 lbs spread over a few more joists than the treadmill. i might be worried that the running on such a machine could crack plaster below if the joists are not sufficiently bridged. i am kind of thinking i would not do it in my house.

stevecym | 6 years ago

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and i just checked, water beds weigh a good bit more.

shahnandersen

in General Discussion 6 years ago

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We had a simple Ski Machine (no more than 50 lbs) and its frequent use actually cracked the cross joist (?) at the edge of the fireplace hearth. We were lucky that the joists on that floor are exposed, so we caught the crack early before there was any significant displacement. We shored up and repaired the joist and moved the ski machine to the cellar. My guess is that the weight itself might not be a problem, but with the movement of the motor and the runner on the treadmill, I think this would be very risky.

hkapstein | 6 years ago

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I think it can take the weight. Usually a residential floor is expected to handle 40 lbs/sq foot live load, the same as parking garage. So probably it should work. However, your joists are old, not necessarily designed to this spec, and someone may have cut them up in the past or they may be spaced much father apart than you’d expect, or have crazy headers built into them, so it’s probably not the best thing for your joists. That said I think you’ll probably be ok. It might help if you could put something like a sheet of plywood under it to spread the weight across more of the structure if you’re worried. I like running outside.