Calculate da wieght any other use material in buildin"

 Calculate the wieght ..."example .how calculate the wieght of brick."

I know." Given formula 

Wieght =volume×densities

Then brick volume =?

Density =120lb/ft3

Brick standard size .=9"inch×3.5"inch×2.5"inch

Then convert to fit"all values

Volume of brick =0.75'×0.29'×0.20'ft

Volume of brick=0.04ft3

Then put the value of v....in formula.

Wieght =0.04×120

W=5.4lb/ft" answer """