How to Install WPC (Wood Plastic Composite) Decking | Detailed Guides


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Durable WPC (wood plastic composite) products have both the texture of wood and the toughness of the plastic. With proper installation and maintenance, it can last about 25-30 years. Our WPC decking installation guide provides you with specific and detailed installation tutorials to make installation easier.

WPC Decking Installation Guide

Required Materials & Tools:

  1. Composite Decking Board

  2. Composite Decking Joists

  3. Hidden Fasteners: composite decking starter clips;

  4. composite decking clips; composite decking screws; expansion screw

  5. Edge Boards:

  6. composite decking edge trim

  7. Rubber Hammer

  8. Drill

Installation Steps

Before installation, please harden the ground in advance and make sure it is flat.

Decking Installation Step1

Step 1 Fixing Joists

Determine the spacing between the two joists, 30cm is recommended for square hollow decking; 35cm for round hollow decking, and 40cm for solid decking. The spacing can be shortened as requested. Then, drill joists and fix them with expansion screws.

Step 2 Installing WPC Decking

1. When installing composite decking panels, a distance of 3cm should be maintained from the building.

Decking Installation Step2 1
Decking Installation Step2 2

2. Placing the first deck board to start your installation.

3. Connecting the two boards with plastic T clips & screws, the diameter of the hole should be less than 3/4 of the diameter of the screw to enhance the grip of the screw. The plastic T clips & screws are used to fix the spacing between the two boards to prevent sliding. (Knock the boards gently with a rubber hammer during the installation process to achieve equal gaps and a beautiful surface.)

Decking Installation Step2 3
Decking Installation Step2 4

4. Repeat this process until the last board. Then comes to the last step, set the edge boards on decking, and fix them with screws, then the installation is complete.

Other points to note:

  1. Install decking with safety equipment.
  2. It is easier to carry with decking edges.
  3. Consult supplier for recommended tools.
  4. Do not dump the decking material when unloading.
  5. Refer to local building regulations before installation.
  6. Scrap can be discarded with normal construction debris.