Treated Carcassing Timber delivery in Welwyn Garden City

Treated Carcassing Timber available for Welwyn Garden City delivery

• Wall plate and nogginsSmaller sections for plates, noggins and bracing.
• Fencing and sleeper timberTreated posts, rails and sleepers on request.
• C16 graded carcassingThe everyday structural grade for joists, rafters and studs.
• C24 graded carcassingStronger grade for longer spans or smaller sections.

Getting the right carcassing timber

Cut ends

Treat any cut ends with a suitable end-grain preservative, especially on external work.

C16 or C24?

C24 is stronger and stiffer, so it can span further or use a smaller section. Span tables and your structural drawings decide which grade and size you need.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Working out quantities for your Welwyn Garden City job

A floor 4.2 m wide with joists spanning 4.2 m at 400 mm centres needs 12 joists, plus trimmers and noggins. The section and grade, such as 47 × 200 mm C24, come from span tables or your engineer; send us the timber schedule and we will price it.

Getting carcassing timber onto your Welwyn Garden City site

Timber is delivered in packs or bundles on a flatbed; long lengths need clear access along the drop point. Welwyn Garden City is inside our standard mainland delivery area.

• If neighbours share the access, it helps to let them know a lorry is coming.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.
• In summer Welwyn Garden City gets around 16h 42m of daylight, but early deliveries still beat the traffic and give the longest working day.

Your questions answered

What sizes of joist do I need?

That depends on the span, spacing, loading and grade. Use span tables or your engineer's design; building control will check.

How soon can carcassing timber be delivered in Welwyn Garden City?

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.

Can I add other materials to my Welwyn Garden City delivery?

Yes. Put everything on one list, from carcassing timber to fixings and PPE, and we will price it as one delivery where the products can travel together.

What does C16 and C24 mean?

They are strength classes under BS EN 338. C24 timber is stronger and stiffer than C16, which lets it span further for the same size.