Posted by **A.W.** on Friday, November 21, 2008 at 7:34am.

If plywood sheets sell at 4ft. x 8ft. a sheet and I want to and I want to build a 12ft x12ft kitchen ; how many do I need to buy? Can anybody tell me how to set this problem up?

- math -
**Reiny**, Friday, November 21, 2008 at 7:52am
I assume you simply want to use the plywood as a subfloor?

You would lay 3 sheets side by side to cover an area of 12 x 8.

then turn one more sheet sideways, leaving a 4 x 4 area open. You have to cut one more piece in half to cover that area.

So you would need 5 sheets.

In reality, you would not lay them they way I suggested, but they would be laid in a staggered fashion to give more stability. You would do it in a "brick-layered" pattern.

Start with a whole sheet, then put a 4 x 4 sheet to finish.

Then start with a 4 x 4, and finish with a whole sheet, etc.

YOu still need 5 sheets

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