Woodspan has developed PLT long-span structural decking that is ideal for when that extra span is required, a higher strength loading, or when reducing building time is important. This decking product eliminates the need for joists, spanning from bearer to bearer.
We provide two thicknesses at 65mm and 90mm to best match the span required. Our standard width is 310mm wide, and it is possible to simply use a piece of decking on edge for your bearer too. The product is preservative-treated to H3.2 MCA (micronized copper azoles) with a 50 year warranty and is finished with a standard grip-tread profile on the top, and relief groove profile on the bottom.
Woodspan PLT decking is made from finger jointed and laminated Radiata pine, produced from sustainably managed forests and engineered to optimise the capabilities of the timber.
Our skilled team are with you every step of the way. We have the industry experience, technical knowledge and superior systems and processes to specify, create and deliver custom-made solutions alongside exceptional customer service
Our skilled team are with you every step of the way. We have the industry experience, technical knowledge and superior systems and processes to specify, create and deliver custom-made solutions alongside exceptional customer service
Our skilled team are with you every step of the way. We have the industry experience, technical knowledge and superior systems and processes to specify, create and deliver custom-made solutions alongside exceptional customer service
Click here to download the Span tables and engineering details.
In summary, a single span with 1kN vibrational limits are outlined below – please consult the guide.
| Width mm | Span mm | |
| WS8-90 GT | 310 | 2223 |
| WS8-65 GT | 310 | 1556 |
| WS8-90 GT | 210 | 1953 |
| WS8-65 GT | 210 | 1367 |
SPAN TABLE DOWNLOAD
Check the Building Performance website here.
If you do require a building consent you will need a design professional to complete your application.
Woodspan cannot provide a design service or issue a PS1.
Decking can be fixed down through the decking boards with stainless or galvanised mass timber screws. Alternatively, if accessible from below, fixings can be installed through steel or timber substrate up into decking boards.
For 90mm boards we recommend an 8x180mm screw,
or 8x150mm screw for 65mm boards.
Fixings need to be at least 25mm from the edge.
Traditional deck design 6.0 x 2.1m = 720 screws
Woodspan PLT deck 6.0 x 2.1m = 42 screws
Fewer holes, fewer piles, fewer bearers, fewer joists, fewer screws = less time.
SPAN TABLE DOWNLOAD
Radiata pine is a soft wood and will naturally expand and contract with moisture. The decking has been kiln dried and we recommend coating with a good quality stain or oil to help prevent excessive moisture uptake. It is particularly important to seal the end grain of the decking as this is most susceptible to moisture absorption. Allow an 8mm gap between boards for expansion.
It is also important to consider slip resistance. Any timber deck can become slippery when wet and there are a number of products that can help with preventing slip hazards.
To get the best out of your Woodspan deck, you should maintain your deck every year. We recommend that you wash and maintain your deck during spring and at the end of summer.
Annual decking maintenance recommendations;
* To find the best detergent for cleaning your deck, contact your local builder’s merchant or deck cleaning specialist to get advice on the best deck cleaner for your deck.
** If mildew remains on the surface of your deck, contact your builder’s merchant or deck cleaning specialist to get advice on the best mildew treatment for your deck test results for uncoated GT and smooth.
Decking boards are available in 6.0m lengths. Give us a call for custom production of other lengths, a cut to length solution or factory applied coating systems.
It is important to carefully plan the layout of your deck to optimise spans and minimise wastage. Another key consideration is the weight of PLT decking boards. A 6m 310x90mm piece of decking weighs approximately 75kg so considering how to lift and assemble your deck is important. Although the boards are heavy, the upside is they require considerably less fixings and there is no need for installing joists, the time required to complete a PLT deck is considerably less than a traditional system.
