Each box contains 21.5 square feet  (2 square metres) of MATT™ Stix in Straight Up Finish, Grey Colour.  The concrete is hand crafted with a natural variation in colour.  MATT™ Stix come in a width of 5 3/4" x length 60" x 1/4" thickness.  The Stix can be scored and snapped to fit various lengths.  Stix are peel-and-stick.
 
To calculate the number of boxes required, add 10% to your total surface area and divide by the area the box covers.