Why Choose WPC Decking?
WPC (wood-plastic composite) decking is the fastest-growing outdoor flooring category because it solves the two biggest problems of traditional wood decks: rot and maintenance. A WPC deck never needs sanding, sealing, or staining, and it resists moisture, insects, and UV fading.
For contractors and property owners, the total cost of ownership is often lower than wood, because you save years of refinishing labor and materials.
Hollow vs. Solid WPC Decking
Hollow (cellular) decking
Lighter, cheaper, and easier to install. Suitable for residential decks with standard joist spacing (≤400mm). Weight savings also reduce shipping costs for large orders.
Solid decking
Heavier and stronger, with better impact resistance. Recommended for commercial projects, public areas, and high-traffic decks. Feels more substantial underfoot.
Co-extrusion vs. Standard WPC
Co-extrusion WPC adds a durable polymer shell over the WPC core. This shell provides superior stain resistance, UV stability, and color retention. If the deck will be in full sun or near a pool, co-extrusion is the safer investment.
Sizes, Colors & Accessories
- Widths: 135mm-150mm are the most common for WPC decking boards.
- Lengths: 2.2m, 3m, 3.6m, 4m, and custom lengths.
- Colors: teak, walnut, grey, black, coffee – most manufacturers offer 6-10 standard colors.
- Accessories: matching trim, corner covers, joists, and hidden fasteners.
Installation Tips
- Leave 5-8mm gap between boards for water drainage and thermal expansion.
- Use joist spacing of 300-400mm for solid boards, 250-300mm for hollow boards.
- Pre-drill holes for screws to prevent cracking in cold weather.
- Allow 10mm expansion gap around the deck perimeter.
Frequently Asked Questions
Is WPC decking slippery when wet?
Quality WPC decking has brushed or embossed anti-slip surfaces. Co-extrusion boards maintain better slip resistance even when wet.
Does WPC decking get hot in summer?
WPC absorbs less heat than dark concrete but more than light wood. Lighter colors and hollow profiles stay cooler. Co-extrusion surfaces reflect more solar radiation.
Can I install WPC decking over concrete?
Yes. Use adjustable pedestals or a raised sub-structure to create proper airflow and drainage under the deck.
How do I clean a WPC deck?
A regular rinse with water and mild soap is enough. For stubborn stains, use a soft brush. Avoid abrasive pads that can scratch the co-extrusion shell.