11mm Structural OSB 3 Sterling Board 2440mm x 1220mm (8′ x 4′)
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£17.37 Original price was: £17.37.£15.64Current price is: £15.64. ex VAT
The 11mm Structural OSB 3 Sterling Board is a highly durable and moisture-resistant panel designed for a wide range of internal and external applications, including roofs, floors, and walls.
- Versatile Structural Applications
- Moisture Resistance
- FSC/PEFC Certified
- Renovation and New Projects
- Superior Strength
- Manufactured to EN 300 Performance Standards
- BBA Approved
EXCELLENT Based on 1292 reviews Posted on Mr DesouZaTrustindex verifies that the original source of the review is Google. First time using Trade insulations an would definitely use again , good prices an very quick delivery, highly recommended.Posted on Gary GlennTrustindex verifies that the original source of the review is Google. Great service from Trade insulation, price was the best I found and I got free delivery in 5 days .. including the weekend ! boards all good and the new SOPREMA .. Highly recommendPosted on Mark RobinsonTrustindex verifies that the original source of the review is Google. Excellent (again). Good stock, well priced, clear and friendly communication, great delivery service.Posted on Mark RowlandTrustindex verifies that the original source of the review is Google. Good, friendly service. Recommended.Posted on Oliver BeachamTrustindex verifies that the original source of the review is Google. Very good low prices, quick delivery times as well. Highly recommend using this company.Posted on Liam MontroyTrustindex verifies that the original source of the review is Google. Really good service. Answered any query immediately and helped massively with delivery. Delivery was super fast, and the driver helped place the order close to where I needed it.Posted on macTrustindex verifies that the original source of the review is Google. Excellent Service from start to finish. I wouldn't hesitate using Trade Insulation again.Posted on Michael KilbaneTrustindex verifies that the original source of the review is Google. I have no complaints whatsoever dealing with this company, from ordering to delivery it went smoothly! The driver was helpful and very competent. Would recommend to anyonePosted on Ryan CrosslandTrustindex verifies that the original source of the review is Google. Ordered 4 insulated plasterboard panels, they came on time and were fantastic quality 👌
Experience efficiency and reliability with the 11mm OSB 3
A versatile panel designed for a multitude of construction applications. This engineered sheet material is composed of multi-layered softwood flakes strategically oriented and hot-pressed, resulting in a durable and adaptable panel.
11mm OSB Board Applications
The unique composition of the OSB, with varying thicknesses and wood species, has earned it the reputation of being the “Swiss Army Knife” of the construction industry. This mish-mash composition contributes to its strength and durability, making it an excellent alternative to plywood. It finds wide-ranging uses in shelving, sheds, display boards, and other domestic applications. Additionally, it proves beneficial in commercial projects such as subfloors and roof decking.
Key Features of the 11mm OSB 3 Sterling Board:
- Moisture Resistance: The OSB 3 is a moisture-resistant panel, making it suitable for both internal and external applications, including roofs, floors, and walls.
- Structural Integrity: The OSB excels in load-bearing and structural applications, making it ideal for wall sheathing, roofing, and flooring. Its durability also makes it a reliable choice for long-term site hoardings.
- Versatility: The 11mm OSB 3 is highly versatile, serving both heavyweight load-bearing construction purposes and domestic decorative applications.
- Easy Installation: Installing OSB boards is hassle-free, as they are easy to drill, nail, file, and sand. They do not require complex equipment or fittings for installation.
- Compliance and Approval: Our structural OSB boards meet the EN 300 performance standards and are BBA approved, ensuring their quality and performance. They also carry FSC/PEFC chain of custody certification, reflecting responsible sourcing.
- Dimensional Consistency: The standard boards come in consistent dimensions of 2440 x 1220 (8ft x 4ft), providing ease and convenience during construction.
Using OSB Boards in Humid Conditions:
While OSB2 boards are suitable for dry conditions, the OSB3 boards excel in more challenging environments, including humid conditions. It is essential to note that OSB boards are not completely waterproof. Therefore, if planning to use them for permanent outdoor applications, it is advisable to add further weather protection.
To enhance weather resistance, apply weather-proof exterior paint to the boards. Follow this with a wood waterproofing sealant, allowing sufficient drying time of 12-14 hours before installation. A second coat can be added if necessary.

Harrison –
easy to cut and no swelling which is always results
Yuna –
Received my order last week and had a nice thank you message for the order, not many companies say thank you for the business these days!!!!
Cameron –
did the job well
Charlie –
good all round ply and delivery was quick
Leo –
I needed specific thicknesses for my project, and the OSB 3 boards from Trade Timber was available in exactly what I wanted
Ryan –
Delivery Driver was Great- thank you Dave for all the help