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18mm Softwood Spruce Plywood Sheets

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Softwood plywood, or shuttering plywood, is a rough-grade sheet used as an inexpensive carpentry material. As the default, we offer Brazilian softwood sheets with a C+/C grade. This is well-suited to applications such as roofing, wall construction or general joinery.

Buy your cut-to-size ply from us and you’ll benefit from great customer service, fast delivery and precision cutting techniques ensuring excellent levels of accuracy.

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

Approximate Weight: 53.07 g

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Softwood ply is often known as shuttering ply, its a rough grade of sheet that is suitable for form work, shuttering and rough carpentry work for example shelves in a garage or a shed to store paint or tools on. You can expect to see knots, dents and filler on the surface, the sheets are quite likely to be warped/wavy. It is not suitable for use in finished joinery like making book cases, desks or any item where the finish is needed to be smooth and presentable, for this we recommend birch ply.

We offer a variety of types of plywood for any application which can be cut to any size or shape using our CNC router for precision and easy duplication. We can cut any shape you need – just send us your drawings, in either CAD or a sketch format, and we’ll create it to your exact specifications. As well as cutting any shape or curve, our CNC router can be used for rebating, pocketing and hole cutting on plywood sheets, in addition to most other sheet materials. We provide laser cutting, CNC engraving for additional customisation too.

If you are looking to print onto plywood sheets, birch plywood is an excellent choice as it provides a great surface for a consistent and professional finish. Using state-of-the-art UV printers, we have the capability to print full sheets of plywood in one go, providing a consistent and professional finish at a much faster rate than painting. We currently only list 8 x 4 sheets (2440 x 1220mm) but we’re able to purchase and cut sheets of up to 2000 x 3000mm, so get in touch with our team today to discuss your project requirements. We offer optional next day delivery and for larger orders, we have our own transport service which operates throughout most of the UK. Have a larger ongoing project taking place? Contact us to discuss bulk discounts and regular supply orders. 

Typically made from spruce, pine or cedar, 18mm softwood plywood sheets are incredibly popular within the construction industry and for home projects as it is a versatile and cost-effective material. Softwood plywood at this thickness delivers excellent stability and rigidity, even in larger sheets, so it’s ideal for walls or flooring as well as roofing and general joinery.

 

Softwood Plywood Grades

Wood comes in a variety of grades; we offer the grades listed below for softwood plywood. For more information about the different types available, please see our wood grading guide.

Softwood plywood is the most popular manufactured plywood and is available in various thicknesses. It is commonly used in construction projects as it’s cost-effective and can be used for different projects. There are several grades of this wood to choose between, from C+/C grade which has knots on both sides of the wood, with those on the facing C+ side filled and touch sanded. We stock Brazilian softwood plywood sheets which is a lighter toned wood with straighter grain and a more uniform texture.

 

Advantages of 18mm Softwood Plywood Sheets

There are many benefits to using softwood 18mm plywood sheets, which is why it is the most popular type of plywood to work with. It’s an affordable material that delivers plenty of strength but it’s also easy to work with and can be cut and machined with ease using standard power tools. Softwood plywood is a compression-resistant material that won’t bend or warp so it’s great for reliability and durability in any application it’s used for. We also offer the other popular size of 12mm softwood plywood.

 

Applications for 18mm Softwood Plywood Sheets

18mm softwood plywood sheets are strong, hard-wearing and stable, so they’re perfect for applications that require rigidity, especially when it is being used in larger sheets. For construction projects and concrete frameworks, 18mm plywood is a fantastic choice that is affordable but provides brilliant durability. Softwood plywood is available in a range of grades, depending on how important the appearance of the wood is, so you can either opt for high-grade softwood plywood sheets to celebrate the natural look of the wood or choose a lower grade for applications where the wood won’t be visible. We also offer marine plywood, hardwood plywood and birch plywood.

Softwood Ply Board Specifications

Material Plywood
Finish Softwood
Thickness 12mm, 18mm
Maximum Sheet Size 2420mm x 1220mm
Minimum Sheet Size 100mm x 50mm
Plywood Grade C+/C
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 is softwood plywood?

Softwood plywood is made from thin sheets of softwood veneer, like pine, fir, or cedar, that are layered and glued together in alternating grain patterns. This cross-lamination creates a versatile, strong, and workable sheet material.

What are the common uses for softwood plywood?

Softwood plywood is frequently used for construction projects, roof decking, concrete forming, flooring subfloors, furniture manufacturing, crating, and other industrial purposes where strength and affordability are important.

What are the advantages of softwood plywood?

Advantages include its low cost, structural stability, easy machinability and installation, lightweight compared to solid wood, resistance to cracking and moisture, and sustainability.

What are the disadvantages?

Disadvantages include potential knots, gaps, or cracks, less attractive grain patterns, prone to warping if improperly stored or transported, and unsuitability for exposed finish work.

What species of wood are used?

Common softwood species used include Douglas fir, pine, spruce, cedar, hemlock, redwood, and larch. Spruce pine fir (SPF) is a popular blend.

How thick is softwood plywood?

We offer softwood plywood in 12mm and 18mm thicknesses.

How should I store and handle softwood plywood?

Store flat on a level surface in a dry, covered area. Avoid excessive heat, moisture, or sudden changes in humidity and be sure to lift sheets carefully without bending or twisting.

Can softwood plywood be left unfinished?

It can be, but unfinished softwood plywood used outdoors or in wet areas is prone to deterioration.

Delivery depends on the size of your order

Reviews

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4.7 / 5 383 reviews
John Carter, 18th March
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Excellent service. Easy to order and delivered when promised.
Verified, Collected by Cut My
Repeat Customer, 16th March
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Good quality birch ply. No defects, lovely grain and no annoying gaps between the plys. Will buy again.
Verified, Collected by Cut My
Arjun Khull, 16th March
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Amazing quick delivery thank you!
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Mr/Mrs Martin, 16th March
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Marine ply ... was lighter than older stuff I was replacing but sufficient for the job.
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Patrick, 14th March
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Accurately cut and packaged well .Reasonable cost, Thank you
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Craig Welch, 13th March
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PERFECT PERFECT
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Mr Brough, 13th March
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Great service
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Julie Salisbury, 12th March
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Exactly what I wanted
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Chris Agg, 12th March
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Great to find them on the door stop and service was excellent
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Customer, 12th March
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Excellent service
Verified, Collected by Cut My
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