SIAM WPC / Products / Installation Accessories
Installation Accessories

WPC Joist JS-40

Sub-frame for decking and cladding. Drains water and extends service life.

Size40 x 25 x 2900 mm
FitsDK-138 / DK-140
ColorsGrey
Warranty8 years
Request a quote Work out quantities

Stock held in our Bangkok warehouse. Quotes returned in one business day, Thai and English.

At a glance

40 x 25 x 2900 mmProfile size
DK-138 / DK-140Fits
10 yrWarranty terms apply
BangkokWarehouse stock

Where it is used

Installation notes

General guidance for WPC profiles. Final fixing detail depends on substrate and local wind load.

Common questions

Does it fade in Thai sun?

Our panels use co-extruded UV-stabilised surfaces rated for outdoor exposure. Colour shift is slow but not zero, so keep spare boards from the same batch for later repairs.

What is the minimum order?

We quote by project. Small sample orders are possible from Bangkok stock; full container loads are made to order.

How fast is a quote?

Send the profile, quantity and delivery province. We return pricing within one business day.

Fits these profiles

Buy the trim and clips together with the boards so the fixing detail matches.

More in Installation Accessories

See all 27 profiles