Floor Dead Load Capacity of Old House

[bobby_yan]

Originally Posted by cmontesi

So your dead load is 600lbs total and surface of 5ft x 7ft

Therefore, your 600lbs total / 35 sf = 17psf(pounds per square foot)

What is the height of your floor joist?
What is the spacing of your floor joists?
What is the length of your floor joists from beam to concrete wall?

Basic math is as follows:
If the spacing is 16 inches on center, you have 2”x8” and the length is less than 16ft, it will support 20psf which is more than your 17 psf of your piano.

Though you have an old house, old growth df is stronger than what we use today.

I wonder why the surface area is 5'x7', as it's an upright piano. Thank you.

[bobby_yan]

Originally Posted by S.I.B.

true. But a couch has gotta be at least 200 pounds or so. Tables? Chairs?

I agree with the weight of the couch, tables and chairs, but they actually put less pounds per sqft compared to an upright piano.