Timber & Sheets
CLS Studwork Timber delivery in Harrow
CLS (Canadian Lumber Standard) timber is kiln-dried, planed softwood with rounded edges, sized at 38 × 63 mm and 38 × 89 mm, used mainly for internal stud walls.
SK Trade is a builders' merchant delivering CLS timber into Harrow, priced to your postcode and confirmed in writing.

CLS Studwork Timber to Harrow: the basics
- How it arrives
- Bundles with your boards
- Delivering to
- Harrow, Greater London
- Postcode districts
- HA1, HA2, HA3
- Daylight
- About 7h 49m on the shortest day
- Nearby (straight line)
- Brent (2 mi), Northolt (3 mi), Greenford (4 mi)
- Delivery
- Standard mainland delivery
CLS Studwork Timber we supply in Harrow
- 38 × 89 mm CLSFor taller partitions, more insulation depth or heavier boards.
- 38 × 63 mm CLSFor non-loadbearing partitions and boxing in.
- FixingsScrews, nails and frame fixings to suit.
- Graded CLSC16 or C24 graded CLS for loadbearing studwork where specified.
- Noggins and head platesCut from the same stock.
How delivery works in Harrow
CLS travels in bundles alongside plasterboard and is easy to hand off at the kerb. Harrow is inside our standard mainland delivery area.
- Give us the full postcode for the drop point; deliveries around HA1 are priced to the exact address.
- If the site is up a shared drive or behind other houses, tell us the distance from the road.
- In summer Harrow gets around 16h 39m of daylight, but early deliveries still beat the traffic and give the longest working day.
Choosing CLS timber
Stud spacing
Studs are usually set at 400 mm or 600 mm centres to suit 1200 mm wide plasterboard.
Which size?
38 × 63 mm suits most partitions up to standard ceiling heights. 38 × 89 mm gives stiffer, taller walls and more room for insulation.
Estimating your CLS timber
A 4.8 m partition 2.4 m high at 400 mm centres takes 13 CLS studs, 9.6 m of head and sole plate and a row of noggins, then boarding on both sides. Work out the boards too
CLS Studwork Timber in Harrow: questions
How soon can CLS timber be delivered in Harrow?
We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.
How many studs do I need?
Divide the wall length by the stud spacing (400 or 600 mm), add one, then add plates and noggins. Our plasterboard calculator gives the boards for the same wall.
Can you deliver CLS timber to a site with restricted access in Harrow?
Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.
What is the difference between CLS and planed timber?
CLS has rounded edges and is sized for studwork; planed all round timber has square edges and comes in many more sizes for joinery and trim.
Other towns near Harrow
- CLS Studwork Timber in Brent
- CLS Studwork Timber in Northolt
- CLS Studwork Timber in Greenford
- CLS Studwork Timber in Ruislip
- CLS Studwork Timber in Bushey
- CLS Studwork Timber in Southall
Add to your Harrow delivery
Send your list, get a delivered price
Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.
