In meters 1ft = 0.3048m => 1sqft = 0.09290304m² => 20sqft = 1.858m² or about a square of 1.36 meters of side. In inches 1ft = 12in => 1sqft = 144 sqin => 20sqft = 2,880 sqin or about a square of 53.67 inches of side.
Each 4" X 36" plank is equal to 1sqft so you would need at least 345 planks but I would get a 360 to make sure there was enough for errors
1 sq ft and 1 ft^2 are the same thing. Both represent a square with sides that are each 1 foot in length.
how many half inches is what.
How many inches is a pen
about 4 inches, well thats how how many inches my spoon is., or maybe 5 inches
How many inches in 5ft8inches
74 inches
6.89 inches.
There are 39 inches in 39 inches.
66 inches is 66 inches.
66 inches is 66 inches.