Installation Instructions | Cambridge Pavingstones
Step 1 Excavation: Dig a trench roughly 8" deep and 12" wide. Firmly compact until bottom is fairly level. Add 6" of 3/4" clean gravel and compact again. Step 2 Leveling Course: Add 1" of coarse C-33 sand into bottom of trench. Step 3 First Course: Place Cambridge wall units in trench touching each other (textured face outward on single-face units). Keep all units level in all directions.