The weight of a piece of wood depends on its density. The density varies between species: from 0.16 g/cc for balsa to as much as 1.33 g/cc for lignum vitae.
More info needed. How much does 0.4 cubic feet of what weigh? Air? Lead? Water? Dirt?
2.5 cubic feet of water weighs about: 156 pounds.
10pounds
The weight of 2.25 cubic feet of water is approx 4495 pounds-force (lbf).
It depends on the density of the substance
Wood has a wide range of densities.
Roughly 72 pounds.
The weight of any volume of water will depend on the gravitational force acting upon it. 57 cubic feet of water would weigh nothing in a spaceship, for example.
Around one hundred pounds.
A cubic foot of concrete weighs ABOUT 150 pounds. 4 feet by 12 feet by 4 feet is 192 cubic feet. If you meant 4 feet by 12 feet by 4 INCHES, that would be 16 cubic feet.
If the weight is 62.5, then it weighs 62.5
1 248.538 214 8 Pounds