Installers should make sure that any timber for structural applications is appropriately graded - i.e. C16 or C24. Sawn timber does not have a smooth finish suitable for decoration, and so if the wood is to be exposed we would recommend a planed all round timber. Where there are technical and structural elements to an installation, we always recommend that you consult a professional who can advise on the specific requirements for your property.
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View Product Reviews47mm x 100mm Sawn Treated Timber C16/C24 (4" x 2") 4.2m
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£2.05 per Lnm
£8.59ex. VAT
£2.05 per Lnm
| 18+ lengths | 35+ lengths | 58+ lengths |
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Project length
Nationwide Delivery
Wed 24 Jun
- 2days
- 15hrs
- 6mins
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Key Features
- {{verified_user}} Strength graded to C16/C24 for known structural performance
- {{rounded_corner}} Regularised with an eased edge
- {{water_drop}} Tanalised timber pressure treated with Tanalith 'E' to prevent rot
- {{dry}} Kiln dried to improve stability and straightness
Technical Specification
| URN: | 4001194 |
|---|---|
| Product: | 4" x 2" |
| Application: | Floor joists, Stud walls, Roof rafters |
| Material Type: | Softwood |
| Thickness: | 47mm |
| Width: | 100mm |
| Length: | 4.2m |
| Weight: | 9.87kg |
| Sales Unit: | Length |
| Sales Unit Coverage: | 4.2m |
| Product Standard: | BS EN 14081 |
| Grade: | C16 / C24 Kiln Dried |
| Treatment Type: | Tanalith E |
| Edge: | Eased Edge |
| Colour: | Natural (varies by treatment batch) |
| Finish: | Sawn |
Product Overview
Sawn treated timber, C16/C24 graded, featuring a 47mm depth, 100mm width, and 4.2m length. This structural softwood is kiln-dried to reduce moisture content and improve stability during installation. The regularised profile provides consistent dimensions and eased edges for safe handling across various building projects.
Designed for load-bearing applications, this timber offers high density and strength suitable for framing, studwork, and structural partitioning. The pressure treatment process forces preservatives deep into the wood fibres to protect against fungal decay and wood-boring insects over the product's lifespan.
The long length of this piece makes it ideal for substantial roof trusses and extended structural framing, minimising offcut waste. The material measures 47mm x 100mm with a length of 4.2m.
Features & Benefits
- Strength grading (C16/C24): C16 for standard domestic builds; C24 for higher loads and reduced deflection.
- Kiln-dried stability: Reduced moisture content minimises the risk of splitting, warping, or dimensional movement.
- Regularised profile: Machine-finished surfaces and eased edges provide uniform dimensions and comfortable manual handling.
- Pressure treatment: Deep-penetrating preservative safeguards the timber against fungal decay and wood-boring insects.
- Length suitability: The 4.2m length is optimised for substantial flooring runs and broader ceiling spans, reducing the need for on-site cutting.
Applications
- Internal stud walls: Forms the vertical framework for non-load-bearing and load-bearing partitions.
- Floor joists: Provides structural support for localised flooring spans and reinforcements.
- Roof construction: Suitable for rafters, structural bracing, and ceiling joist assemblies.
- Extended framing: Ideal for structural bridging and prolonged joist runs over long distances.
Installation Guidance
- Moisture checking: Allow the timber to acclimatise to the environment prior to installation to prevent excessive movement.
- Cutting and sealing: Apply an appropriate end-grain preservative to any cross-cuts, notches, or boreholes to maintain protection.
- Fixing selection: Use corrosion-resistant nails, screws, or structural brackets to secure the timber firmly in place.
- Load distribution: Ensure appropriate spacing between framing components according to structural calculations.
Compliance & Performance
- Grading standard: Kiln-dried and strength graded to C24 in accordance with BS EN 14081-1.
- Treatment specification: Pressure-treated using a water-based preservative system.
- Moisture content: Kiln-dried to a target moisture content of 20% or less prior to treatment.
- Important note: Wear appropriate personal protective equipment, including gloves and a dust mask, when cutting or handling treated timber.
- Natural variation: Colour and surface appearance vary naturally and by treatment batch.
- Moisture disclaimer: Treated Timber is often stored outside and if it has recently been raining then the timber may arrive wet; this does not affect the integrity of the timber.
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 |
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.
Customer Reviews
This is some good wood
No twists or warping, really happy.
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