4 inch Internal Door Casings are machined from 38x100^mm Fifth Swedish Redwood (Softwood), polythene shrink-wrapped as a loose set;

(These may be supplied by different suppliers who can have slightly differing specifications.)

2 @ 78-³/₄" legs, 1 @ 34" head: trenched for 30" doors - (Sometimes, an ¹/₈" or so is given for clearance - Varies by supplier.)
- can be re-trenched for narrower doors;
(2 @ 2 Metres,  1 @ 870^mm head trenched for 762^mm doors.)
Finished section: 3-³/₄" x 1-¹/₄" & rebated: 1-¹/₂" x ¹/₂".
( 93 to 95^mm x 32^mm finished size, with 38x12^mm rebate size.)
Used in partitions made from 3x2 scant + 2 x 9^mm plasterboards.

4x1.5" Planed Timber Internal Casing should be treated and fixed in place as soon as possible to help minimise any movement/­twisting and surface checking/­splitting that occurs naturally with changes in moisture content; 4" Softwood Internal Door Casings are not recommended for external use; External use of Moulded Redwood Door Casing is at your own risk - Timber life expectancy is increased with good timber treatment and protective finishing coats. It is better to use pressure treated timbers externally.

- Sizes measured as at - 14/12/2015 -

Sizes are the usual timber nominal size that the 100^mm Door Casing is machined from, with a finished size that is generally obtained;
Planed 4x1-¹/₂" Internal Redwood Door Casing sizes are generally ±1^mm on thickness / ±2^mm on width, ±6^mm cross-cutting tolerance & there may be one splitter saw cut-edge; (Be aware: For a multitude of reasons, size and profile of 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.)

We are able to supply certified 4" Moulded Softwood Internal Door Casing with our Chain of Custody Certifications, CoC - JAS Timber CoC Certification - 4 Inch Internal Casings INT-COC-003944.150 and 4 Inch Internal Casings INT-PEFC­/COC-001119.150 - poa;

- Check all component dimensions, mouldings, glazing or any 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 Timber Door Casing once work has commenced. Larger orders of 4" Door Casing and Direct Deliveries are supplied as a Special Order.

- The measured overall width has been between 93^mm & 95^mm but can vary from batch to batch -
- Contact us if this size is critical -

- We can cut these Casings in our workshop to a specific width up to 93^mm -

4" Redwood Casing is a natural product - variations in knots, colour and grain should be expected - They are not defects.

Payment - We can now take Debit Card, BACS, Cash, Cheque or Credit Card payment online for 4" Softwood Internal Door Casings

Van Delivery of 100^mm Door Casings on our van, in Blackburn, Lancashire & the North-West, from £10.00 +vat, or £1 +vat per mile - poa (from: £30 Manchester, £35 Lancaster, £45 Liverpool, £60 Leeds, all +vat;)

The approximate weight of a 4" Internal Door Casing Set is 8Kg, to include packing;
- 4" Internal Door casings can now be purchased online just add to basket - Charged by weight, the shipping charge is shown in the basket;

Carrier Delivery of 100^mm Internal Door Frames is possible from £12.40 +vat - up to 10Kg/2.4M., then 50p per Kg; ( Zone A mainland - poa other zones)
2.4 to 3.0 M. from + £15+vat - poa Anything longer is not suitable unless in pallet quantities; 

(Please tell us the post-code for your enquiry about 94^mm Softwood Internal Door Casings, so that we can quote for delivery.)

- The May 2021 Scandinavian Softwood Price List is current - 20­/05/2021 -
- Please phone us at JAS Timber Merchants with any enquiries about 4" Internal Door Frames - 01254 54000

E. & O.E. see T&C - We do try to keep prices and specifications of 100^mm Timber Internal Door Casings correct, but mistakes can be made!