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Quantity Guide for Grout

 The main factors affecting the quantity of grout required are:

  • tile thickness
  • joint width

 As a guide, the following quantities are likely to be needed: 

Tile Thickness Quantity/sq.m
for nominal 15mm tiles thickness  
10mm joint width 10sq.m/10kg bag
6mm joint width 8sq.m/5kg bag
3mm joint width  15sq.m/5kg bag
for every extra 5mm tile thickness
10mm joints width
2kg/1sq.m
6mm joints width 1kg/5sq.m
3mm  joints width  1kg/10sq.m