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The answer will depend on what units the floor is measured in: 20x30 square inches? sq feet? sq metres? Since you have not bothered to provide that information, I cannot provide a sensible answer.

Furthermore, there are various sizes for sheets of plywood as well.

Q: How many sheets of plywood do you need for a floor for 20x30?

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That depends entirely on the size of the sheets !

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.

8, and you'll have a plywood board that is 4 by 4 leftover.

One, if it is big enough.

Six sheets exactly

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That depends entirely on the size of the sheets !

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.

20 of them.

8, and you'll have a plywood board that is 4 by 4 leftover.

It depends on the size of the plywood sheets.

One, if it is big enough.

Six sheets exactly

Depends on the size of the sheets of plywood.

First find the area of the floor and then the sheet of wood. 16*12=192 4*8=32 192/32=6 you need six sheets of plywood.

Multiply the width by the length, for area. So, 16x12=192Answer:American measured plywood comes in 4x8 sheets. The floor would be 2 sheets long (2x8=16) and 3 sheets wide (4x3=12) so you would need 3x2=6 sheets.

3/4 inch plywood takes 48 sheets to make a unit.

16 x 12 = 192 sq ft one 4 by 8 plywood sheet = 8 x 4 = 32 sq ft 192/32 = 6 sheets