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Buy Douglas Fir C24 Joists - Clear & Better (85/15), Kiln Dried, Planed All Round
Order planed all round (PAR) Canadian Douglas Fir Joists, Kiln Dried and strength graded to C24 for internal exposed joists. Supplied in 85/15 Clears grade giving a near knot free finish. Available in 5 standard sizes 6x2, 7x2, 8x2, 9x2 and 10x2 to a PAR finish of 42x144mm to 42 x 244mm.
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Planed All Round Douglas Fir C24 Internal Joists
For exposed joists C24 Douglas Fir Joists are our go to suggestion due to their high quality finish, class 3 durability and unique eyecatching grain texture. Joists are planed smooth and kiln dried to a stable moisture content, minimizing moisture movement.
Canadian Douglas Fir is imported into the UK in 'Clear & Better' grade which is shorthand for 85/15 Clear and Better grade. What does 85/15 Clear and Better grade mean? It means 85% of the boards in a pack will be No.2 grade (the highest grade available and the least defects) and 15% of the boards will be No.4 grade which is still a high joinery grade but allows a small amount of visual character. This is an appearance grade. Our C24 Douglas Fir joists must meet a strict strength grade criteria and boards will be very clean with only a small amount of character.
iWood Kiln Dried Douglas Fir C24 Joists are available in 50mm x 150mm, 50mm x 200mm, 50 x 175mm and 50mm x 250mm ex sizes, and up to 4.8m in length.
When to use C24 Douglas Fir Joists
C24 Douglas Fir is best used when there is a structural requirement internally but it will be seen so you would use something more aesthetic than C24 European softwood or C24 treated softwood which are used primarily for their utility.
For cut and machined to order sizes of Canadian Douglas Fir visit our Planed All Round Douglas Fir page and for joiners, our Cut to Size Douglas Fir page.
Difference between British Douglas Fir and Canadian Douglas Fir
| British Douglas Fir | Canadian Douglas Fir C24 | |
|---|---|---|
| Origin | UK-grown | Canada |
| Drying | Green / fresh sawn | Kiln dried |
| Strength grading | Fresh sawn merchantable grade, typically C14/C16 | Strength graded C24 |
| Knots | Frequent and larger, characterful | Mostly clear |
| Internal / external | External use only | Internal & External use |
| Typical use | Framing, garden structures, rustic and characterful work | Internal joists and exposed structural work needing a graded, stable, near-clear finish |
Both products are Douglas Fir. They are prepared differently and suit different jobs. If British Douglas Fir seems more suitable for your requirements, head over to our British Douglas Fir Beams page for a live price.
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| Grade | Available Thickness | Available Width | Available Lengths | Comparison Prices (ex VAT) |
|---|---|---|---|---|
C24 | Min: 42mm | Min: 144mm | Min: 2.4m | 42mm x 144mm x 2.4m (Planed): £71.50 |
Lengths over 4m must have a width and thickness of 100mm or more.
Douglas Fir
Softwoods
3 - Moderately Durable (Learn about Durability)
Reddish brown
930 KG/m3 (Wet) - 540 KG/m3 (Kiln Dried)
C24
Product Code: IW-5-16-19
Specify C24 Douglas Fir from iWood Timber
Lead times
Our timber is imported straight from sawmills on the continent. Our usual lead times are therefore 10 to 14 Working Days.
Delivery costs
Delivery cost varies by location. Please click here to open our delivery cost page in a new window.
Delivery day
Our delivery lorries visit different parts of the country on different days, so once your order is ready we will work with you to arrange a delivery day for when one of our lorries is in your area. We will always arrange the delivery day in advance with you.
Delivery times
We deliver weekdays Monday to Friday between the hours of 8am to 5pm. Our delivery vehicles will have multiple jobs on them which can affect the delivery time to you, depending on factors such as traffic and how long it takes to offload the previous jobs. The driver will call you in advance with an estimated time of arrival to make sure you'll be there.
The ordering process
After placing your order securely online you receive an email confirming the items you have ordered. When your order has arrived at iWood HQ and is ready for dispatch, we will give you a call to arrange delivery.
