6×2″ C24 Treated Timber Rough Sawn (150×44 mm) – 3 m
€17.09
In stock
Your security and privacy are at the heart of everything we do. Every purchase you make is protected by industry‑leading safeguards designed to keep your personal and payment information safe.
Secure Payments
Pay with complete confidence using our trusted, fully protected payment methods. Your card details remain secure, uncompromised, and handled with strict care.
All sensitive data is encrypted from end to end, and we never sell or share your card information, ever.
Payment Methods
We accept credit and debit cards from most major credit issuers. Your card can be saved for future purchases and you can remove or edit the card information at any time. For questions regarding your transactions on our site, please consult your card-issuing bank.
We deliver across all four zones defined below.
Quantity savings
Enjoy automatic discounts as soon as your basket qualifies—no codes, no hassle.
Buy 25–49 units
Get 3% off your entire qualifying product order.
Buy 50+ units
Get 5% off your entire qualifying product order.
How it works
Your discount is applied automatically at checkout based on the total quantity of eligible items in your basket. The more you buy, the more you save—simple, transparent, and designed to reward our customers.
Product specification
- Length
- 3000 mm
- Width
- 150 mm
- Thickness
- 44 mm
- Material
- Timber
- Wood Type
- Softwood
Treated C24 Timber
6×2 treated whitewood, 150 by 44 mm, is the deck joist: the section most decks in Ireland are built on, along with rafters in open structures, carport framing and joists over ventilated voids. Strength-graded to C24 and kiln-dried below 22% moisture content before treatment, it is supplied with the certification needed for sign-off. Lengths run from 3 m to 7.2 m. Stocked in our warehouse for delivery across Ireland.
Why treated C24?
A deck frame is the hardest working treated timber most people will ever buy. It is horizontal, it is shaded, it stays damp under the boards for days after rain, and replacing it means lifting the whole deck. Every joist should be treated as a matter of course. The C24 grade matters too, because deck joists are usually spanning further than people assume.
Installation guidance
Set joists at 400 mm centres for most deck boards, and closer where boards run diagonally. Treat every cut end, and pay attention to the tops: water sitting on a joist top face is what rots a deck frame from the inside. Many builders run a strip of joist tape along the top of each joist for exactly that reason. Use stainless or hot dip galvanised joist hangers and fixings throughout.
Finishing & maintenance
The frame will not be seen, so there is nothing to finish, but the exposed ends at the perimeter benefit from a coat of end grain preservative and a stain. For an internal floor or roof, the untreated section is the right specification: 6×2 C24 timber rough sawn. For longer deck spans, compare the 7×2 and 9×2 in our C24 treated timber range. To compare sawn and treated sizes side by side, see our construction timber page.