Plywood calculator

Answers the question: How many plywood sheets do I need?

This plywood calculator will calculate how many plywood sheets you need. The calculator will deduct the size of doors and windows. The final number of plywood sheets is rounded up.

If you select an option that has the same underlying value as another option, both (all) will be marked.


Number of plywood sheets needed: 24
Total plywood cost: $ 504

As this plywood calculation is an estimate, we recommend adjusting for some waste. A plywood sheet or two extra will always come in handy!

Our calculations

At Calculatorian, we are keen to share our knowledge, be transparent and open to feedback. Here are the calculations used to create this calculator. If you find an error or deficiency, contact us and we'll fix it in an instant!

Number of plywood sheets needed was calculated like this:

Step 1

First we need to calculate the variable da. da = door area in square meters.

Step 2

Then we need to calculate the variable wa. wa = window area in square meters.

Step 3

Then we need to calculate the variable pl. pl = total plywood area in square meters.

Step 4

Finally we put it together and calculate it like this:

Total plywood cost was calculated like this:

Variables used in this formula

l = Room length in meters
w = Room width in meters
h = Wall height in meters
d = Number of doors
wg = Number of windows

Depending on your choice when selecting plywood size (height and width) a constant is applied as the variable dw in the formula.

Plywood size (height and width)dw
600 x 2400144
600 x 2600156
1200 x 2400288
1200 x 2600312
1200 x 2700324
1200 x 3000360
900 x 2400216
900 x 2700243
p = Price per plywood sheet