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Western Red Cedar Shiplap Fence Boards

Price From: (exc VAT) £10.25 (inc VAT) £12.30
(exc VAT) (inc VAT)
Price per linear metre £6.08 £7.30
Price per square metre £48.63 £58.36

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Price From: (exc VAT) £10.25 (inc VAT) £12.30


Western Red Cedar Shiplap profiled boards can be used in the creation of horizontal solid board fences. They are typically utilised in contemporary garden design and commercial applications to achieve an attractive high end appearance. The horizontal lines will accentuate the length of the space, and the interlocking boards provide privacy.

Silva offers this product in two ‘clear’ grades of Western Red Cedar – ‘clear’ being the term to describe timber that is largely free of knots and other characteristics. No. 2 Clear & Better is the higher of the two grades and therefore has fewer imperfections. Shiplap boards produced from Silva’s Select No. 4 Clear & Better contain slightly more knots and other characteristics, but overall will offer a similar ‘clear’ appearance at a more economical price.

At a glance

  • Two grades available from stock in various lengths
  • Board width: 144mm
  • Kiln Dried coastal grown Western Red Cedar
  • Can be installed with no visible nail heads
Grade £/mtr(exc VAT) £/m2(exc VAT)
No.2 Clear & Btr £6.87 £54.95
No.4 Clear £6.08 £48.63

Grading Rules Explained

Build a fence from Clear Grade Shiplap Western Red Cedar

Western Red Cedar Shiplap profiled boards are installed horizontally to accentuate the length of the structure. When used in garden design this creates the illusion that the space is longer or wider than it is in reality.


The Shiplap profile interlocks with adjacent boards to create attractive shadow lines where the boards meet. The curve in the channel that this creates softens the appearance a little by adding a very subtle contrast to the straight lines and square edges. The fact that clear grade Western Red Cedar is used to produce these boards will lend the project a clean contemporary feel and a level of quality that cannot be achieved with other materials.


The raw material used to produce Silva’s shiplap boards is fine grained coastal grown Western Red Cedar that has been kiln dried at source to a moisture content of 12 -15%. This is important for a number of reasons (see document for further information) but the main advantages are that it doesn’t need acclimatisation on site prior to installation and it can be finished immediately so it is protected from the outset. Green or inconsistently air dried wood will shrink after installation causing gaps to widen and may initially be too wet to accept a finish.

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Finishing & Protection

It is recommended that a finish is applied to all surfaces, including ends, before installation. The type of coating will be determined by the final finish and appearance desired.

Why Pre-finish?

  • Enhances the natural beauty of wood
  • Ensures a consistent finish
  • Applied in factory conditions
  • Long lasting protection against weathering
  • Simple maintenance routine
  • Reduces onsite labour costs

Sansin Enviro Stains

Easy to apply and maintain, Sansin Enviro-stains deliver outstanding performance. Sansin's range of wood protection products are available in 80 colour tones

What is weathering?

There is a risk involved when leaving wood exposed to the elements. During the weathering process wood can appear unsightly as the material can blacken due to moisture getting into the fibres and pulling out tannins and extractives. Finish protects the wood from moisture absorption and UV degradation.

What to expect from timber products

When working with timber it should be expected that although ‘on-grade’, occasional boards may have minor imperfections that will require ‘working’ if you wish to eliminate. Examples include raised grain, small splits, minor handling marks, sticker marks etc – all of which can easily be remedied by trimming, gluing or sanding. In most cases imperfections can be removed with very little effort, and the small amount of off cuts generated as a result will be absorbed in the normal cutting and selection allowance.



Western Red Cedar No. 2 Clear and Better

This particular product is produced from a sawn Western Red Cedar clear grade known as ‘No. 2 Clear and Better’. It is one of two grades - the other being ‘No. 4 Clear’- of sawn clear Western Red Cedar which are classified in accordance with the R-List Export Grading Rule Book published by the Pacific Lumber Export Bureau.

Silva Select No. 2 Clear & Better far exceeds the grading rules set out in the Export R-List Grading & Dressing Rules book. Usually with this grade you should expect some trimming and wastage; however with this product you will find very little. We have repeatedly been told by industrial users that this product is the best they have seen on the UK market.

More about No.2 Clear & Better

Western Red Cedar No.4 Clear

The first thing to highlight about our ‘Silva Select No. 4 Clear’ product is that it far exceeds the grading rules set out for ‘No. 4 Clear’. Usually with this grade you should expect a certain amount of trimming and wastage; however the producer of the sawn lumber has identified a demand for a product that is less expensive than ‘No. 2 Clear & Better’ but yields less wastage than standard ‘No. 4 Clear’.

In our opinion this has been achieved with Silva Select No. 4 Clear. We call it Silva Select because it’s a cut above the standard grade and we are the only company importing this product into the UK. A number of our customers have expressed surprise at the quality, especially after reading the grade description which makes it sound far worse quality than it actually is.

More about No.4 Clear


This product carries Programme for the Endorsement of Forest  Certification  (PEFC)

The PEFC Council is an independent, non-profit, non-governmental organisation founded in 1999 which promotes sustainably managed forests through independent third party certification. The PEFC provides an assurance mechanism to purchasers of wood and paper products that they are promoting the sustainable management of forests.

PEFC works throughout the entire forest supply chain to promote good practice in the forest and to ensure that timber and non-timber forest products are produced with respect for the highest ecological, social and ethical standards. Thanks to its  eco-label, customers and consumers are able to identify products from sustainably managed forests.

Silva Timber meets the requirements for PEFC Chain of Custody within the BM TRADA Certification Limited Scheme for TRADA - Trak chain of custody certification.

Certificate number: BMT-PEFC-0319

Western Red Cedar is the ultimate green building material. It is legally, responsibly and sustainably harvested in the publicly managed forests of British Columbia, Canada. Less than 1% of standing timber is harvested each year.

For each tree harvested, three are replanted to ensure the forests will exist in perpetuity. Western Red Cedar has a low impact on the environment throughout its life cycle. It requires significantly less energy to produce than man-made alternatives and is bio-degradable.


  • FSC
  • PEFC
  • Trada member
  • Responsible purchaser
  • Cedar Shake & Shingle Bureau
  • nbs plus
  • Secured by