Method 1
Enter the square footage of the area you need to cover and click the 'Calculate' button.
The number of tiles boxes needed will appear in the "Teak Tile boxes needed"

Enter Square footage:      Teak Tile boxes needed:

Method 2
Enter the number of teak tile boxes to find out the square footage you would be able to cover.
The number of square feet you would be able to cover will appear in the "Square footage"

Enter Teak Tile boxes:      Square footage: