Installation Guide

Breaker or Border boards (boards laid at 90° to the rest of the deck) can be used to create
a border around the deck and this will aid in controlling expansion resulting in better. Blocking will need to be used to support
the breaker board.
The breaker board will need to be top fixed or surface mounted to the Blocking.
7
Apex
TM
Deck Installation Guidelines
Expansion gap design is application dependent:
Typical installations will have breaker boards or perimeter boards between each longitudinally-placed board. The expansion gap
in these cases will be as has been calculated above, depending on the climate and original length of board.
Single board lengths
Joist Blocking
Expansion gapExpansion gap
Breaker board
FIXED
WALL
FIXED
WALL
Multiple board lengths placed consecutively
Double joist on butt joins
Expansion gap
Expansion gap provided for the change in length of both boards.
Expansion gap