Installation Guide

9
High Wind Load Installation
The Heritage Pergola is designed to withstand 150 mph windloads but requires securing 4”x4”
wood post into the ground with concrete.
Installation method for 4" x 4" wood support post in ground
1. In ground Method
Step 1. Using a post hole digging tool, dig a
hole 12" in diameter; approximately
31"- 48" deep. Fit a 12" sonatube
down into the hole for the concrete
pier.
Step 2. Dig a 16" x 16" x 3" deep square
pad for pergola base (F) platform.
*Limestone column base requires a
13” x 13” platform*
Step 3. Level the pier platforms using string
line, wood pegs and a level (as shown).
Mix the ready- mix concrete with water
in a wheelbarrow (follow
instructions on the bag).
You will need approximately two
80 lb. bags of ready mix concrete for
each pier. Then fill in pier just
below pad.
Version 3.0, March 2010