25mm x 150mm Shiplap Treated Timber Cladding (Finish 21mm x 144mm) - 1 Metre

£3.26ex. VAT £3.26 per Lnm
£3.26ex. VAT
£3.26 per Lnm
Min
75
Minimum order of 75

Nationwide Delivery

Fri 26 Jun

Order by 2pm tomorrow
  • 23hrs
  • 3mins
  • 7secs

Delivery & Returns Info
Min
75
Minimum order of 75

Nationwide Delivery

Fri 26 Jun

Order by 2pm tomorrow
  • 23hrs
  • 3mins
  • 7secs

Delivery & Returns Info

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Delivery & Returns Information

Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.

Standard (Nationwide) Delivery

Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £20 ex. VAT
Over £300 ex. VAT FREE

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 £90 ex. VAT
Over £400 ex. VAT £55 ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £50 ex. VAT
Over £300 ex. VAT £35 ex. VAT

View Full Delivery Policy

How delivery works

We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.

Delivery areas

Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.

If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.

What to expect on delivery day

  • Deliveries are typically kerbside.
  • Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
  • Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.

Why delivery can cost more than typical parcel delivery

Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.

Returns

Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.

View Full Returns Policy


Key Features

  • {{verified}} Treated timber requires minimal upkeep
  • {{lock}} Tongue and groove design creates a tight, weather-proof barrier
  • {{emoji_nature}} Protected against decay, insects, and moisture
  • {{thunderstorm}} Designed to withstand harsh environmental conditions

Technical Specification

Technical Specification
URN: 4002082
Thickness: 25mm
Width: 150mm
Sales Unit: Metre

Product Overview

Shiplap treated timber cladding, measuring 25mm x 150mm nominal (finished size 21mm x 144mm), supplied by the metre in random lengths from 2.1m to 5.1m. Designed for exterior structures, this board combines wide coverage with durable pressure-treated protection.

Manufactured from softwood that has undergone preservative treatment, the timber is safeguarded against decay, moisture ingress, and insect attack. This process extends longevity and reduces ongoing maintenance.

The shiplap tongue-and-groove design features a precise interlocking fit with overlapping edges, ensuring both weather resistance and a clean decorative finish. The increased finished width of 144mm allows for faster coverage across large wall areas.

Ideal for cabins, summerhouses, and larger outdoor buildings, this profile balances strength, coverage, and appearance.

Features & Benefits

  • Durable construction: Manufactured from pressure-treated softwood for resistance to moisture, decay, and insect damage.
  • Weather resistance: Tongue-and-groove shiplap profile provides a tight interlocking seal against wind and rain.
  • Ease of installation: Interlocking boards simplify alignment and fixing.
  • Natural appearance: Warm softwood finish enhances outdoor structures with a traditional aesthetic.
  • Wide coverage: Finished 144mm width reduces the number of boards required.
  • Nominal size 25mm x 150mm (finished 21mm x 144mm): Provides robust coverage with reduced fixings.


Applications

  • Cabins & summerhouses: Provides wide, decorative cladding with effective weather resistance.
  • Larger outdoor buildings: Suited to garages, workshops, and sheds.
  • Exterior facades: Ideal for domestic or commercial wall cladding.
  • Garden structures: Effective for fencing, screens, and feature projects.


Installation Guidance

  • Preparation: Ensure support battens are treated and securely fixed at correct centres.
  • Cutting: Use fine-toothed saws for clean edges; re-treat cut ends with preservative.
  • Fixing: Secure each board with appropriate exterior-grade nails or screws.
  • Jointing: Install boards with overlap to ensure weather resistance.
  • Finishing: Apply protective stain or paint if desired to extend surface life.


Compliance & Performance

  • Material specification: Manufactured from pressure-treated softwood.
  • Surface treatment: Preservative-treated for enhanced durability against decay and insects.
  • Dimensional accuracy: Supplied nominal 25mm x 150mm, finished 21mm x 144mm.
  • Supply details: Supplied by the metre in random lengths ranging 2.1m–5.1m.
  • Important note: Re-treat all cut ends with preservative and use suitable PPE when cutting.



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Questions and Answers

How can I order specific lengths

Typically, available lengths for this product vary from supplier to supplier, therefore we don't offer set lengths as standard. However, if you have a requirement for a particular length our team can try to source that for you. We would need to know the location of the delivery, quantity of material required and of course the preferred length. You can use either the contact us page - https://materialsmarket.com/contact-us or send an email to theteam@materialsmarket.com.

answer supplied by James Herbert on 28 May 2025

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