18mm Structural OSB 3 Sterling Board 2440mm x 1220mm (8′ x 4′)
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£25.49 Original price was: £25.49.£22.96Current price is: £22.96. ex VAT
The 18mm 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 1215 reviews Posted on JosephTrustindex verifies that the original source of the review is Google. Used this company for PIR board. I realised I ordered too many. Customer service from James was top tier in sorting the amendment of the delivery in a very timely and with short notice! Would recommend and use again!Posted on Joshua CainTrustindex verifies that the original source of the review is Google. Great experience with trade insulations. From ordering to delivery, everything was straightforward and arrived on time. Even communication afterwards, checking that everything was ok was very good. I will Definitely be using trade insulations for future projects.Posted on william magillTrustindex verifies that the original source of the review is Google. I recently placed a large order and had an excellent experience. The load arrived as advised and the delivery driver was both charming and helpful. I highly recommend.Posted on Max Graystone-LeeTrustindex verifies that the original source of the review is Google. Cheapest I could find for what I needed and fast deliveryPosted on DPA Home RenovationsTrustindex verifies that the original source of the review is Google. We have been purchasing insulation materials from Trade Insulations Ltd for a couple of years and their service has consistently been outstanding. They stock a wide range of insulation products, give knowledgeable and friendly advice, and always ensure quick delivery. Their customer service is first-class and very dependable. I would highly recommend them to any construction or refurbishment businessPosted on yotam levyTrustindex verifies that the original source of the review is Google. Great service, fast delivery, professional drivers - would recommendedPosted on Chris FieldTrustindex verifies that the original source of the review is Google. Delivery driver was very helpful and considerate. Everything was as it should be.Posted on stephanie “Stephanie92” newlandTrustindex verifies that the original source of the review is Google. Delivery within 3 days and great price !Posted on Jim BobinskiTrustindex verifies that the original source of the review is Google. Fantastic service 👍 good company, prices and prompt delivery
Experience efficiency and reliability with the 18mm 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.
18mm 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 18mm 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 18mm 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.

harvey daniels –
great for our outdoor project and easy to work with
Elliot –
great boards easy to fit and no damages to the edges which is always a bonus
Joseph –
I’ve used OSB 3 boards from multiple suppliers, but this batch from Trade Timber is by far the best. No defects, clean cuts, and easy to work with. A bit more expensive, but worth the investment
James –
Trade Timber offers the cheapest price around , very happy with the service and with the value for money