How many 4 x 12 x 2 plywood sheets are required for a square subfloor that is 36 x 36, factoring in 10% for waste?

To determine how many 4 x 12 x 2 plywood sheets are needed for a 36 x 36 square subfloor while accounting for waste, start by calculating the total area of the subfloor. The area of the square subfloor is 36 feet multiplied by 36 feet, resulting in 1296 square feet.

Next, calculate the area of one sheet of plywood. Each plywood sheet measures 4 feet by 12 feet, giving it an area of 48 square feet.

Now, divide the total area of the subfloor by the area of one sheet of plywood to find out how many sheets are needed without factoring in waste:

1296 square feet (subfloor area) ÷ 48 square feet (area of one sheet) = 27 sheets.

To account for waste, which is 10% in this case, calculate 10% of 27 sheets. This is done by multiplying 27 by 0.10, which equals 2.7 sheets. Therefore, the total number of sheets needed with waste included will be 27 sheets plus 2.7 sheets, resulting in a total of 29.7 sheets.

Since sheets cannot be purchased in fractions, round up to the next whole number