21mm x 145mm Hollow WPC Decking

0.83inch x 5.71inch Hollow WPC Decking

Our 21x145mm hollow decking is made from up to 90% recycled material, reflecting our commitment to reduce the amount of waste that is sent to landfill.


Techwoodn 21mm x 145mm hollow WPC decking is the ideal choice for residential projects such as a hallway, boardwalk, as well as small areas such as porch, balconies or country and gardens. Techwoodn deck incorporates the qualities of wood and the properties of plastic. We offer the best of both worlds. It is hard-wearing and requires low maintenance-saving you time and money. Whether in China or abroad, you can rely on Techwoodn decking to look great and help you maximize the use of your outdoor space, whatever the weather.

Whether it is the first time you’ve installed decking or you’re replacing degraded timber boards. Using our minimally maintained composite decking is a great solution. Its unique formula makes it long-lasting and UV stable, even in the harshest of climates.

For Techwoodn 21mm x 145mm hollow WPC decking, the Weather resistant, suitable from -40°C to 60 °C. Extremely warm or cold outdoor temperatures play a significant role in the installation and performance of all decking projects, but Techwoodn decking’s unique installation methods help you to manage and reduce the effects of thermal expansion and contraction.

When used on a patio, our Techwoodn decking boards are suitable for use with our 21mm composites bearers, which can also use with our adjustable pedestals for easy height correction.

Our 21x145mm hollow decking is made from up to 90% recycled material, reflecting our commitment to reducing the amount of waste that is sent to landfill. We are proud to use 100% FSC certified timber- an industry first for a timber composite. This demonstrates that all of the wood we source for our products originates from well-managed forests. We are keen to help preserve our natural resources for future generations and by choosing us, you can be sure that you are buying an environmentally-friendly product.



Surface Treatment


Additional information



Product thickness


Product width


Standard length


customized length


Approximate weight



Hollow; flat side & grooves side


Wood fiber plastic composite


Classic / Mix Color


Hidden Fasten Installation

Install recommend

S.S.304 fasten clip and screw


5 years (You can get details from Techwoodn team.)


ISO9001, ISO14001, CE, ASTM, UV testing…