Treated Carcassing Timber for Eltham, delivered to site

Which carcassing timber can you order in Eltham?

• C16 graded carcassingThe everyday structural grade for joists, rafters and studs.
• Wall plate and nogginsSmaller sections for plates, noggins and bracing.
• Treated timberPressure treated for protection against rot and insect attack.
• C24 graded carcassingStronger grade for longer spans or smaller sections.
• Longer lengthsLengths beyond the common range to order.

Choosing carcassing timber

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.

Which treatment?

Treatment is specified by use class. Timber inside a building is usually use class 1 or 2; external timber out of ground contact is use class 3; timber in ground contact needs use class 4.

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.

Estimating your carcassing timber

A floor 3 m wide with joists spanning 4.2 m at 400 mm centres needs 9 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.

Delivering carcassing timber in Eltham

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

• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• Clear a level area for pallets, ideally on boards, so materials stay out of standing water.

Treated Carcassing Timber questions

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.

How soon can carcassing timber be delivered in Eltham?

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.

Do you deliver carcassing timber to trades and homeowners in Eltham?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

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.