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47mm x 75mm Sawn Treated Timber (3" x 2") 3.6m

URN: 4001221
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£5.69ex. VAT £1.58 per Lnm Get it for £5.18 ex. VAT with CORE+
£5.69ex. VAT
£1.58 per Lnm
47mm x 75mm 3"x2" (3.6m) wood is an incredibly versatile structural building material suitable for both indoor and outdoor use, thanks to the sealing and treating of the timber.

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Fri 9 May

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Product Overview

47mm x 75mm 3"x2" (3.6m) wood is an incredibly versatile structural building material suitable for both indoor and outdoor use, thanks to the sealing and treating of the timber.

URN: 4001221
£5.69ex. VAT

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All delivery charges are shown in your basket and are dependent on the total value of items in your basket based on product category.

This charge is based on delivery to mainland UK excluding the following postcodes: AB, CF, DD, DG, KW, IV, LD, LL, NP, PH, SA and SY. If your delivery address is in any of these postcode areas a member of our customer service team will contact you prior to processing your order should an additional delivery charge apply. We do not offer deliveries outside the UK mainland.

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Returns

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Key Features

  • {{home}} Ideal for roofing, flooring and wall applications
  • {{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

Technical Specification
Thickness:47mm
Width:75mm
Length:3.6m
Sales Unit:Length
Sales Unit Coverage:3.6m

What Is 3x2 Timber 3.6m? 

47mm x 75mm 3x2 Timber 3.6m is a versatile, pressure-treated timber ideal for a range of framing and non-structural applications. Often referred to as 47x75 timber or 3x2, this product is commonly used for stud walls, roofing joists, flooring joists, decking, and garden structures such as pergolas and fencing.

Our 3x2 Timber 3.6m is kiln-dried and treated with a protective preservative to resist moisture, rot, and insect damage, ensuring longevity and low maintenance. While the nominal dimensions are 47mm x 75mm, the finished size is typically 45mm x 70mm.


We sell 3 x 2 stud timber in various lengths such as 3m, 3.6m and 4.8m.

Please Note: The finished size of our carcassing timber may vary slightly from the nominal dimensions. You can expect to receive timber that is finished with a thickness 2mm less and a width 5mm less than the nominal measurements stated. Colour and finish are representative only and may vary slightly as this is a natural product.


Applications

3 x 2 timber lengths are used for the most part in stud wall partitions, where they provide both the horizontal and vertical sections of a stud wall.
A few examples of how 47x75 timber can be used are:

  • In roof and flooring joists
  • As part of a building structure's timber frame
  • Outdoor decking (due to its durability and moisture resistance)
  • Outdoor frames and pergolas 
  • Fencing
  • Garden sheds and garden furniture


Please note: 3 x 2 is a non-structural timber size, which means that it shouldn't be relied upon to support the building structure.

What is 3x2 Timber In mm?

3 x 2 timber is most often measured in inches, which is an imperial measurement, though it is sometimes measured in metric and this is where millimetres (mm) come into play. 

3x2 is considered to be 50x75mm or 47x75mm. This discrepancy is accounted for by the way the wood is cut and prepared. 

On our website, we sell 75mm x 47mm but the difference in the actual size is minuscule and will not make a meaningful difference to your project.

Is It Easy To Saw 47x75 Timber To My Preferred Size?

Treated wood can be readily cut to the dimensions required in your project, however, this should only be done with the right equipment, eye protection, and a respirator since the cutting process releases tiny airborne particles of wood, possibly impregnated with the chemicals used in pressure-treating.

Treated wood can be more difficult to cut, as it often behaves like wet wood. Exercise caution while cutting to avoid the blade slipping.


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Q&A

Is this Moisture resistance for outhouse

I'm converting a single-brick outhouse into a utility room. The space currently has a lot of moisture and condensation issues. I’m planning to insulate the walls using 50mm PIR boards and then fix plasterboard over them. Can this timber be used as the structural framework for the walls, ceiling and floor to support the insulation and plasterboard?

In short, yes it can. The timber is treated to resist moisture and rot, and is suitable for support plasterboard. We would recommend treating any cut ends of the timber, as this tends to be a weka point even for pre-treated products. We would also recommend that a Vapour Barrier be installed between the frame and plasterboard to reduce the risk of condensation in the build-up of material. Please find the following example - https://materialsmarket.com/products/125mu-500g-green-vapour-barrier-4m-x-50m-200m2-roll

answer supplied by James Herbert on 28 April 2025

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