Six
It depends on the size of the plywood sheets.
I
13 ft by 23 ft = 299 ft2 and one standard sheet of plywood is 4 ft by ft = 32 ft2. 299 / 32 = 9.34 sheets, so you will need to purchase 10 sheets of plywood.
88 sheets of plywood provided that standard size sheets are used(4ft x 8ft)
Six
25 will cover it. I'd get 28.
It depends on the size of the plywood sheets.
Six four by eight sheets of plywood.
To cover a rectangle-shaped floor measuring 16x12, you will need 6 4x8 sheets of plywood. Arrange the sheets so that the longer side of the sheets line up along the longer edge of the floor.
One, if it is big enough.
Oh, dude, you're really asking me to do math? Fine, fine. So, a standard sheet of plywood is 4 feet by 8 feet, which is 32 square feet. To cover 1200 square feet, you'd need about 37.5 sheets of plywood. But like, let's just round up to 38 to be safe.
Six sheets exactly
Assuming the plywood comes in 4' by 8' sheets you would need 6 sheets to cover a 12' by 16' area.
Area of a sheet of plywood = 4' x 8' = 32. 1700ft2/32ft2 = 53.125 54 sheets of 4' x 8' plywood would be needed to cover 1700ft2.
140
I