Installation Instructions
13
PAVERS
Tamp the subbase using a at-plate
vibrator. Work in a circular motion compacting the
area twice.
Make a grid work of stakes and guide strings to indicate
the nished height and slope of your patio, then excavate
5" PLUS the thickness of your pavers, below these lines.
This will provide room for a 4" subbase, the 1" leveling
sand base, and the pavers themselves (Image 5). If the
area is hilly, you’ll need to go back and forth between
excavating, leveling and setting strings to get things right.
Soil conditions vary greatly across the country. If after
digging the necessary depth below your strings, you still
nd pockets of loose dirt or black soil, remove it or it will
eventually settle, creating a wavy patio.
When installing pavers as a residential driveway, a
minimum of 8" of base will be required. See local code
for details.
Next, bring in the subbase material. Bring the
area up to a of height 1" PLUS the paver thickness below
your guide strings (Image 6). It should be at least 4" deep in
all places. The subbase should extend 8" beyond the actual
edge of the patio to provide room for the edging. It’s possible
you’ll need to build up an area to accommodate your patio.
In such cases, remove the sod and loose soil, then build up
the area with your subbase material. Add subbase in 2-3" lift
increments, compact, and repeat until reaching the desired
base level. Building a 10" to 12" subbase is common; even
20" would not be unusual.
BASE & EDGING DETAIL
5
Spread subbase to a depth of 4" over the entire
patio area and 8" beyond. Measure down from
the guide strings to establish a uniform subbase
surface.
6
7
Tamping the subbase is an important step when installing
your new paver patio, walkway, or driveway (Image 7). Proper
compaction provides stability to the project by spreading
any load over a greater area of the ground below. If laid and
compacted properly the subbase will help to recompress
the surrounding soil that could have been disturbed while
excavating.
PAVER PATIO & SIDEWALK INSTALLATION