9mm Structural OSB 3 Sterling Board 2397mm x 1197mm (8' x 4')
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Fri 12 Jun
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Delivery & Returns Information
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £25 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £90 ex. VAT |
| Over £400 ex. VAT | £55 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
How delivery works
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
- Deliveries are typically kerbside.
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- Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
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Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
Key Features
- {{foundation}} Used in a variety of structural applications
- {{water_drop}} Offers load-bearing performance in humid conditions
- {{workspace_premium}} Manufactured to EN 300 performance standards
- {{verified_user}} BBA approved
Technical Specification
| URN: | 4003003 |
|---|---|
| Application: | Roofs & walls |
| Thickness: | 9mm |
| Width: | 1197mm |
| Length: | 2397mm |
| Weight: | 14.73kg |
| Sales Unit: | Sheet |
| Sales Unit Coverage: | 2.87m2 |
| Grade: | OSB3 |
| Wood Species: | Pine / Spruce |
| Edge: | Square |
| Bond Class: | BS EN300 |
| Formaldehyde Level: | E1 (low) |
| Country of Origin: | Latvia |
Product Overview
Structural OSB 3 Sterling board, measuring 2397mm x 1197mm (8' x 4') with a 9mm thickness.
Engineered from cross-laminated softwood strands and bonded with resin under heat and pressure, it delivers consistent strength and stability without knots or voids.
Certified to EN 300 OSB 3 for load-bearing performance in humid conditions, it serves as a practical and cost-effective alternative to plywood for many structural applications such as sheathing, panelling, and internal construction.
Features & Benefits
- Structural classification: OSB 3 certified to EN 300, for load-bearing use in humid conditions.
- BBA approved: Permits use in a wide range of commercial and domestic projects.
- Void-free construction: Consistent strength with no knots or core gaps.
- Cross-strand stability: Resists warping, splitting, and expansion.
- Moisture performance: Reliable in humid environments, unlike OSB 2 (dry-use only).
- Workability: Easy to cut, drill, nail, and sand with standard tools.
- Board size 2397mm x 1197mm: Designed to suit UK construction modules (based on 600mm and 400mm centres), reducing cutting and waste.
- Thickness 9mm: Lightweight panel suited to sheathing, soffits, and panelling.
Applications
- Wall sheathing: Enhances structural rigidity and racking resistance when fixed to timber frame wall systems.
- Light Flooring underlayment: Provides a level surface suitable for light domestic flooring applications with close joist centres.
- Site hoardings: Delivers a durable, cost-effective solution for temporary site enclosures and fencing.
- Shopfitting and displays: Versatile enough for the fabrication of shelving units, structural stands, and internal panelling.
- General DIY projects: Practical for wide-ranging construction tasks requiring a high-strength, stable panel.
- Packaging and crating: High strength-to-weight ratio ensures the protection of goods during transit without adding significant shipping weight.
Installation Guidance
- Allow for expansion: Leave a 3mm expansion gap between all board edges and a 10mm gap at rigid wall abutments to accommodate natural movement.
- Stagger the joints: Lay panels in a "brick-bond" pattern across supports to ensure structural loads are distributed evenly across the frame.
- Support all edges: Ensure every board edge is supported by a joist, stud, or noggin to prevent deflection and maintain a level surface.
- Apply correct fixings: Secure boards using galvanised nails or screws at 150mm intervals along edges and 300mm intervals on intermediate supports.
- Seal cut edges: Coat all field-cut edges with a high-quality water-resistant wood sealant immediately to prevent moisture ingress and edge swelling.
- Orient boards correctly: Install the long axis of the board perpendicular to the supporting joists or studs for maximum structural spanning strength.
- Protect from weather: Cover installed boards with a waterproof membrane as soon as possible if the structure is not yet fully weathered.
- Fixing distance from edge: Ensure all fasteners are driven at least 10mm from the board edge to prevent breakout and maintain pull-through resistance.
- Surface painting: Use a high-quality solvent-based primer or dedicated OSB sealer before applying topcoats to prevent strand swelling, as detailed in our comprehensive guide to painting OSB.
Compliance & Performance
- Standard: EN 300 OSB 3 classification, verified for structural use in humid environments.
- Certification: BBA approved for quality and compliance in construction.
- Bonding: High-pressure, resin-bonded layers provide long-term durability and resistance to delamination.
- Veneer quality: Free from internal knots and core voids, ensuring consistent structural integrity across the board.
- Important note: Colour and finish are representative only and may vary slightly as this is a natural product. Always ensure proper ventilation if using in enclosed spaces, though this board is manufactured to E1 low-formaldehyde emission standards.
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