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18mm OSB 3 Board

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19 reviews
Rated 5 out of 5 stars
5 stars
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£0.49 Inc. VAT

Robust structural OSB 3 panels made from cross-oriented bonded wood strands. This 18mm thick OSB board provides strength for load-bearing applications like flooring, roofing, and wall sheathing.

We only supply OSB/3 sheets. This means they are load-bearing boards for use in humid conditions. Order 18mm OSB 3 boards online today, fully cut-to-size.

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mm
Min: 100mmMax: 2440mm
mm
Min: 50mmMax: 1220mm

Approximate Weight: 56.77 g

Free delivery when you spend £250+

Estimated delivery: from Check My Postcode

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Specifications

Material Wood - Oriented Strand Board (OSB)
Finish None
Available Thicknesses 18mm
Maximum Sheet Size 2397mm x 1197mm
Minimum Sheet Size 100mm x 50mm
OSB Grade OSB/3
Manufacturers Tolerances +/- 10% plus 0.4mm (e.g. 5mm cast sheet could vary from 4.1mm to 5.9mm)
Cutting Tolerances +/- 1mm

Frequently Asked Questions

What does OSB stand for?

OSB stands for Oriented Strand Board.

Is OSB water-resistant?

Most OSB is water-resistant, due to the construction process using wax, resins and wood strands. For truly waterproof OSB however, we recommend adding a waterproof coating.

Will OSB hold screws?

Yes, OSB can be screwed and nailed to any surface, as long as you have enough screws to fix it in place.

Is OSB stronger than Plywood?

OSB is 2 times stronger than plywood in shear. Generally, however, OSB and Plywood have a similar load strength.

What is OSB 3?

The term OSB/3 is used to describe a type of OSB, as follows: "load-bearing boards for use in humid conditions". This is defined in BS EN 300.

Delivery depends on the size of your order

Reviews

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5 / 5 19 reviews
Kirsty Gunn, 12th March
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Excellent floor board
Verified, Collected by Cut My
Krystian Poplawski, 10th March
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Marked and painted with black paint. Supposed to be used as shelves but now have to overpaint them all. That was not a plan and it will be costly. Customer Service never replied. EDIT: customer service fully refunded . Great job!
Verified, Collected by Cut My
cameron fraser, 8th March
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I was very pleased with my purchase. The wood was cut exactly with a very clean cut, also it was packed to the enth degree and delivered on time.
Verified, Collected by Cut My
paul , 2nd March
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Lovely quality and will buy again , perfect and lite for needed works in roofspace
Verified, Collected by Cut My
Drew Christie, 30th December
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Perfect for shed shelving.
Verified, Collected by Cut My
Bertie, 4th November
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Excellent product. Easy to work with.
Verified, Collected by Cut My
Robert Oates, 29th October
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Easy as: measure, input sizes, address, pay, wait delivered!!!
Verified, Collected by Cut My
P Trott, 8th October
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Excellent service and speedy delivery. Shall use again.
Verified, Collected by Cut My
Jens Zinke, 8th October
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Excellent product, fast delivery, looks amazing as work desk. Very good value for money.
Verified, Collected by Cut My
Pip, 11th August
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Good product.
Verified, Collected by Cut My
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