Installation Composite Decking
VERSION 1.161018
woodandbeyond.com
Prior to Installation
Ensure that the ground is levelled, clean and solid. For
muck foundation, it is necessary to lay a solid substrate
to fix the joist. In case your base is made out of concrete,
ensure that it’s at least 6cm thick, in order to avoid any
sinking or expansion.
Make sure to drill two drainage holes with a diameter
of at least 8cm in every 4 m2. That’s to ensure the infiltration of water well into the ground, so as not to cause
water accumulation.
PAGE 1 OF 7
PRIOR TO INSTALLATION
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Prior to Installation
Due to the crispness of WPC, all holes
must be pre-drilled prior to fastening
of the boards onto the joists, otherwise
board will break if screwed directly.
An expansion gap of 1.5mm/metre (of
the board length) must be left in between
boards.
8cm drainage hole per 4 square
meter in low lying place
Tickness of the concrete > 6cm
Please note
Decking planks shall not be used as structural material such as columns, beams,
joists, support posts or other load bearing
segments.
PAGE 2 OF 7
STEP 1
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Step One
Keep a distance of 20-50cm between any
two joists. If boards are not installed not
vertically to the joists, a shorter distance
must be kept between the joists. Long
joist distance will make the boards warp
downwards.
Joist
Screw
THICKNESS OF BOARD
DISTANCE BETWEEN PARALLEL JOISTS
21 +/- 2mm
250 +/- 50mm
25 +/- 2mm
300 +/- 50mm
PAGE 3 OF 7
STEP 2
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Step Two
Use a stainless steel screw to fasten the
clip onto the joist, prior to installation of
the decking boards.
PAGE 4 OF 7
STEP 3
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Step Three
Due to the expansion ration, we recommend using boards of up to 3 metre
lengths. The gap between them should be
6mm and will be controlled by the fixing
clips.
The clips must be fastened at a 45 degree angle, in the middle of the decking
boards, so as to ensure that the expansion will be sideways and outwards.
PAGE 5 OF 7
STEP 4
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Step Four
Two joists must be used at any
end-to-end join of two decking
boards. A gap of 3-8mm should
be left between the two ends.
The distance between two decking
planks should be 6mm, and can be
controlled by the fixing clips.
The protruding length of the decking should not be more than 1cm.
C
B
A
SEASON
RESERVED VALUE
MORNING/EVENING (SUNNY)
NOON (SUNNY)
Spring / Winter
5-8mm
7-8mm
5-6mm
Summer / Autumn
3-5mm
4-5mm
3-4mm
PAGE 6 OF 7
STEP 5
woodandbeyond.com
Installation Composite Decking
VERSION 1.161018
Step Five
The fascia at the end of the decking
should be fastened onto one side of the
board or joist. Do not fasten onto both
board and joist simultaneously.
WOOD&BEYOND LTD
877 Finchley Rd, London, NW11 8RR, UK
0203 869 0900
[email protected]
www.woodandbeyond.com
PAGE 7 OF 7