Rough Sawn Treated Timber 47 x 100mm (2″ x 4″) FSC®

From £3.91 (Excl. VAT)
From £4.69 (Incl. VAT)
from £1.30 per m

Not enough stock to cover your order? We can often supply more than the quantity shown online. Call 01724 844441 and we will confirm availability for you.

Our 47x100mm treated timber (4×2) is C24 strength graded, kiln dried and pressure treated. Use it for joists, wall partitioning and landscaping projects. Choose from 14 lengths between 1.2m and 6m, or have our joinery team cut it to size in-house.

Description

Timber Specifications

  • Nominal size: 47mm x 100mm (2″ x 4″); finished size: 45mm x 95mm
  • Kiln dried for strength and stability
  • Pressure treated to help protect against rot and insect attack
  • FSC® certified from responsibly managed forests

Grade Details

  • C24 strength graded to EN 14081
  • Graded for structural use, such as joists and wall partitioning
  • C24 is a higher strength class than C16
  • Every length is graded, not just a sample from the batch

Physical Properties

  • 14 lengths: 1.2m, 1.5m, 1.8m, 2.1m, 2.4m, 3m, 3.6m, 3.9m, 4.2m, 4.5m, 4.8m, 5.1m, 5.4m and 6m
  • Rough sawn surface finish
  • Priced per length, from £1.30 per metre (Excl. VAT)
  • Can be painted or stained

Installation Features

  • Cuts, drills, nails and screws with standard hand and power tools
  • Treated before it leaves us, so there’s no pre-treatment needed before fixing
  • Allow for the 45x95mm finished size when choosing joist hangers and fixings
  • Cut to your lengths in-branch, ready to fit

Technical Specifications

Property Specification
Nominal Dimensions 47mm x 100mm (2″ x 4″)
Finished Dimensions 45mm x 95mm
Strength Grade C24
Grading Standard EN 14081
Drying Method Kiln dried
Treatment Pressure treated
Surface Finish Rough sawn
Certification FSC®
Lengths Available 1.2m to 6m (14 lengths)
Price per Metre From £1.30 (Excl. VAT)
Cutting Service Cut to size in-house
Finishing Can be painted or stained

Key Features

What’s Included

  • 1 length of 47x100mm C24 treated timber at your chosen length
  • Finished size of 45mm x 95mm along the full length
  • Priced per length, not per metre
  • Cutting to size available in-branch on request

Suitable Applications

  • Floor and ceiling joists
  • Stud wall partitioning
  • Landscaping projects
  • General structural framing that needs a C24 grade

Installation Benefits

  • Cut to size in-house: no site cutting and less waste
  • C24 strength: can span further or carry more load than C16 at the same size
  • Kiln dried: less likely to twist or shrink once fixed
  • Already treated: fix it as soon as it arrives

Finishing Options

  • Paint or stain to match your project
  • Brush end grain preservative onto every cut end
  • Wood stains, oils and varnishes available in-branch and online
  • Leave it unfinished for hidden structural work

FAQs

What is the actual size of 47x100mm treated timber?

The finished size is 45mm x 95mm. Timber is named by its nominal sawn size and loses a little during drying and processing, so allow for 45x95mm when spacing studs or choosing joist hangers.

Is 47x100mm the same as 4×2 timber?

Yes. 47x100mm is the metric name for 4×2 (2″ x 4″). UK merchants sell it in metric, but it’s the same section most builders still call four by two.

What’s the difference between C24 and C16 treated timber?

C24 is a higher strength class than C16. It can carry more load or span further at the same size. For structural work, check span tables or confirm with building control.

Do I need to treat the ends after cutting?

Yes. Cutting exposes untreated timber at the centre of the section. Brush end grain preservative onto every cut end before fixing to keep protection all the way round.

Can you cut it to length and deliver it?

Yes. Our joinery team cuts all timber in-house with no booking needed. Collect from our Scunthorpe branch or get delivery within 48 hours in our own vans.

Ready When You Need It

In stock at our Scunthorpe branch. Order online for collection in under an hour. Local delivery within 48 hours using our own vans.

Free delivery on orders over £500 + VAT within 45 miles of Scunthorpe.

Need more than the stock shown online? Call 01724 844441 and we’ll confirm availability.

Need it cut to size? Our joinery team handles all cutting in-house. No delays, no extra trips.

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