JAS Timber

4 inch Building Timber

Softwood 4" Building Timber -
from JAS Timber - Walpole Street Sawmills - Blackburn BB1 1DB - Tel 01254 54000

100mm Nominal - Carcassing Timber | Rough-Sawn or "Regularised" Eased-edge -
This timber is a very high quality European whitewood - Air-dried and Wet Graded to SSC16 or SSC24, and is generally Grade-Stamped for inspection by your Building Inspector, so suitable as joists, rafters and building timber. Normal lengths are 4.8 | 5.4 | 6.0 metres; however, we can also source larger sizes and lengths to order.

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8x4 R/S Graded Carcassing (100x200mm) SSC16/24 WET

8x4 R/S Graded Carcasssing (100x200mm) SSC16/­24(4.­8, 5.4, 6.0 M.) - price per metre
  • £31.68 + VAT 20%

10x4 R/S Graded Carcassing ( 250mm x 100mm ) SSC16/24 WET

10x4 R/S Graded Building Timber ( 250x100mm ) SSC16/24 - Price per metre:
  • £11.38 + VAT 20%

12x4 R/S Sawn Carcassing ( 100x300mm ) SSC16/24 WET Graded Whitewood

12x4 R/S WET Graded Carcasssing (100x300mm) SSC16/24 (4.8 - 5.4 - 6.0 M.) - price per metre
  • £33.10 + VAT 20%

12x4 Regularised Carcassing ( ex 100x300mm fin. 90x290mm ) SSC16/24 WET Graded

12x4 Regularised WET Graded Carcasssing ( 100mm x 300mm ) SSC16/24 (4.8 - 5.4 - 6.0 M.) - price per metre
  • £33.10 + VAT 20%

12x6 R/S Sawn Carcassing ( 150x300mm ) SSC16/24 WET Graded

12x6 R/S WET Graded Carcasssing ( 150mm x 300mm ) SSC16/24 ( 4.2 - 4.8 - 5.4 - 6.0 metres ) - Price per metre
  • £115.20 + VAT 20%

Machining in Workshop - Cutting

Machining in Workshop / Cutting
  • £2.00 + VAT 20%

Machining - Workshop Time

Machining in our Joinery Workshop - Time at JAS Timber
  • £1.00 + VAT 20%

10x5 Rough Sawn Sleeper - *Green Treated* ( Finished size 240mm x 120mm ) Ungraded Timber

10x5 R/S *Green-Tanalised* ( ex 250mm x 125mm ) Ungraded Railway Sleeper - Price per 2.4 metre length:
  • £33.00 + VAT 20%

4 inch Carcassing Timber is a natural product - variations in knots, colour, and grain should be expected - They are allowable. A certain amount of checking and splitting occurs that is allowable in the Grading Specifi­cation; 100mm Timber can be Grade-Stamped for strength, where required.

Due to it's thickness, and the length of time taken to kiln-dry it, 100mm Graded Carcassing timber is usually air-dried "in-stick"; Unseasoned 100mm timber can have a moisture content approaching the maximum saturation level of 27%, when air-dried "in-stick" this can fall to 20-23%, and if kiln-dried the moisture level is brought down to 18-20%. Generally in a heated building, the moisture level can be 8-10%, and it is here, when the moisture level of timber is rapidly changed, that twisting, warping and splitting can occur.

We keep tilt-fillet in stock and can cut firring pieces and other timber sections to size for flat-roof and pitched-roof work.

Sizes may be the usual timber nominal size that the 4 inch Carcassing Softwood is cut from, with a finished size that is generally obtained; Carcassing Timber sizes are generally within ±6mm on thickness / ±10mm on width, ±40mm cross-cutting tolerance and there may be one splitter saw cut-edge; This is the size immediately after machining the Joist, and does not take into account any movement later, caused by moisture movement into, or out of the 100mm Construction Timber. The size, profile and other aspects of building timber may vary from batch to batch, so it is best to purchase all you need for a job in one go, rather than buying more at a later date.

4 inch Building Timber needs suitable external treatment, finishing and maintenance for exterior use; External use of 100mm Building Timber is at your own risk. - unless we have had the timber specifically vacuum-treated for you, with a guarantee certificate.

- JAS Timber cannot be held responsible for any variations in 100mm Sawn Timber sizes, pattern, construc­tion, grading, moisture-content, treatment, certi­fica­tion, knots, colour, grain or finish.
- If it is important, then you need to check these or any other details before purchasing & notify us in writing on your order.

We can supply FSC or PEFC Certi­fica­tion for 100mm Building Timber with our Chain of Custody Certificates ( CoC ) - JAS Timber CoC Certi­fica­tion - FSC 100mm Carcassing INT-COC-003944.­150 or PEFC 100mm Carcassing INT-PEFC/­COC-001119.­150 - poa;

  • Check your 100mm Building Timber delivery to see that all it's component dimensions, any mouldings, any glazing, and that all other details are correct, prior to any work on site;
  • JAS Timber cannot be held liable for the consequences of any variation;
  • We cannot exchange any 4 inch Construction Timber Product once work has commenced; 100mm Carcassing Timber Orders at variance with our Stock-holding and all Direct Deliveries are supplied as a Special Order.

Poa - Extra Cutting or Machining of 4" Sawn Timber - Machining in Yard - Machining In Workshop - Workshop Time -

Don't forget our Roto Oak Roof Windows if you are undertaking a barn conversion project, or if you simply want the best roof window - a unique product from JAS Timber, Blackburn - BB1 1DB

Payment - We can take Debit Card, BACS, Cash, Cheque or Credit Card payment online for 100mm Building Timber.
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Van Delivery of 100mm Carcassing Timber on our van, in Blackburn, Lancashire and the North-West, from £6.50 +vat, or £1 +vat per mile
- poa; ( from: £30 Manchester, £35 Lancaster, £45 Liverpool, £60 Leeds, all +vat; )

Chargeable carriage weights may be shown for 100mm Building Timber Joists in Kg - to include the minimum of packaging, our careful packing and the XDP Standard Zone-A Carriage Charge; To order online - Click add to Basket, taking care if there are any options to choose in drop-down menus; To see your ongoing Order Total or to amend it, click the small Checkout Trolley icon at the Top-RHS of the page in the Green Navigation-bar.

XDP Carrier Delivery of 100mm Building Timber Lengths costs from £12.40 +vat - up to 10Kg and 2.4 metres x 400x400mm, then +50p per extra Kg; For 2.4 to 3.6 metres from £15 +vat more - poa; Anything longer is not suitable unless in pallet quantities to Zone A Mainland - poa other zones; The risk of damage is roughly 5% with carrier delivery ( there is no damage insurance with XDP ), so we urge you NOT to sign for your consignment until you have checked it; Once signed - ( "unchecked" isn't accepted ) any carrier will deem that you have received your order in reasonable condition - It is then your respon­sibility; We have tried to intervene with the carrier - but they are immune to complaints.
You can choose an "Insured" Tracked Delivery for £6 +vat extra, by adding - TNT Carriage

Haulier Delivery of 100mm Carcassing Items can be arranged for larger quantities, charged per 1.2 metre pallet space - poa;

Direct Delivery of 100mm Building Timber Sections may be possible from some of our suppliers - poa;

( Please tell us the delivery post-code for your enquiry about 100mm Timber Building Products, so that we can quote for shipping. )

  • The July 2021 Quarterly 100mm Building Timber Price-List is current, unless there is a new currency based over-rider - 01/09/2021
  • Please phone us at JAS Timber for any further details about 100mm Carcassing Timber - 01254 54000

E.&O.E. see T&C - We try to keep prices and specifi­cations of 4 inch Carcassing correct, please tell us if you see any errors.