# Solution to Problem 540 | Floor Framing

**Problem 540**

Timbers 8 inches wide by 12 inches deep and 15 feet long, supported at top and bottom, back up a dam restraining water 9 feet deep. Water weighs 62.5 lb/ft^{3}. (a) Compute the center-line spacing of the timbers to cause f_{b} = 1000 psi. (b) Will this spacing be safe if the maximum f_{b}, (f_{b})_{max} = 1600 psi, and the water reaches its maximum depth of 15 ft?