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That depends on the sise and the type of timber the floor boards are made of, However standard practice with flooring is 450mm centers or 600mm centers if the boards are thicker to allow for the extra 150 millimeter's
international building code book says a 350S162 33ksi steel on 16" centers
200 lbs per sq ft
300 lbs per square feet
If you lift your feet while on the floor then you are helping yourself by moving your feet and potentially swinging them and that helps your body swing up If you want to loose weight then the best way to do them is to get a friend or a family member to hold your feet on the floor while you are doing them and you will get a real workout and really feel the difference :)
Sit on the floor and stretch out your legs, and push your feet together. Then draw your legs back into bended position while keeping the two soles of your feet together. Hold your feet together with hands, and bring your head or chest to your feet.
each piece is clecerly positioned to hold the others in so if one piece broke the entier cube wouldbreak.
yes, although sometimes they are lower for younger people
Water weighs about 8 pounds per gallon. The weight would be 800 pounds. Normal floors would carry that much. I would, if possible, have a stand with wide feet.
because our body is all diferant shapes so i think that all parts of our body cant be on contact with the floor your feet hold up your legs :/ to be honest i actually dont have a clue xx sorryy xx
Hold the Brake and floor the gas -_-
The answer would be to hold the things you put on it without damage to the item or the floor.