DUBLIN DELIVERY ONLY
18mm OSB3 Board, 8 x 4ft (2.44m x 1.22m) – oriented strand board conditioned for load-bearing use in humid conditions. Longer wood strands give better mechanical performance than MDF or chipboard.
Key specifications
- Thickness: 18mm
- Sheet size: 2440 x 1220mm (8ft x 4ft)
- Coverage: approx. 2.98 m² per sheet
- Grade: OSB/3 – load-bearing boards for use in humid conditions (BS EN 300)
Uses
- Floor decking and roof sheathing
- Wall sheathing and hoarding
- Shelving, workbenches and site use
Benefits
- Strong and stiff for load-bearing use
- Suitable for humid conditions protected from the weather
- Cost-effective alternative to plywood
FAQs
Is OSB3 waterproof?
OSB/3 is for humid conditions where the board is protected from the weather. It is not designed for full external exposure.
Is the price per sheet?
Yes, the price is for one 18mm 2440 x 1220mm sheet, including VAT.
Delivery
Dublin delivery only. OSB is a bulky building material, so we deliver it within Dublin only, on our own trucks. Building-materials delivery charges are shown at checkout – see our Delivery page. For delivery outside Dublin, contact our sales team at sales@dynamitehardware.com or call 01 910 9445.
Browse our full range of sheet materials, plus construction & treated timber.





















































































































































































































































































































