Most timber and sheet materials come in standard sizes, but your job rarely does.
That’s why we supply cut-to-size sheet materials and made-to-order timber to builders, contractors, formwork specialists and the public, across a range that runs from MDF and plywood to carcassing and PAR softwood.
What does “cut to size” mean?
There are three ways to order, depending on the material:
- Standard sizes: The sheet or length as we stock it, such as an 8 × 4 ft sheet of MDF or a 4.8 m length of formwork timber.
- Cut to size: A sheet material cut down to the panel sizes you need, so it arrives ready for your site or workshop.
- Machined to order: Timber produced to a finished section, such as PAR softwood machined to your specification.
If you’re not sure which suits your job, ask our team before ordering.
Standard sizes we stock
| Material | Standard size | Thicknesses / sections |
|---|---|---|
| MDF (including green MR MDF) | 2440 × 1220 mm | 6, 9, 12, 15, 18 and 25 mm |
| OSB3 | 2440 × 1220 mm | 11 and 18 mm |
| Marine plywood (BS1088) | 2440 × 1220 mm | 6, 9, 12, 18 and 25 mm |
| Far Eastern hardwood plywood (interior, dry conditions) | 2440 × 1220 mm | 4, 6, 9, 12, 15, 18 and 25 mm |
| Elliotis softwood plywood | 2440 × 1220 mm | 12 and 18 mm |
| Good one-sided structural plywood | 2440 × 1220 mm | 18 mm |
| Hardboard | 2440 × 1220 mm | 3.2 mm |
| Formwork plywoods (Tulsaform, Pourform, film faced) | 2440 × 1220 mm | 18 mm |
| Carcassing timber (C16 and C24, kiln dried) | Lengths up to 12 m | From 19 × 38 mm to 300 × 300 mm |
| Formwork timber | 4.8 m lengths | 70 × 145, 70 × 95, 45 × 145 and 45 × 95 mm |
| PAR softwood (redwood and whitewood) | Various | Sections from 12 × 25 mm to 100 × 100 mm |
Need something that isn’t listed? Other sizes are available on request.
Which material for which job?
Choosing the right board or timber matters as much as getting the size right. Here’s a quick guide based on what each product is used for.
| Job | Material | Why |
|---|---|---|
| Concrete formwork | Tulsaform, Pourform or film faced plywood | Formwork panels that give a smooth concrete finish |
| Boat building or weathered panels | Marine plywood (BS1088) | Internal or external panel that withstands weathered conditions |
| Roofs and walls | Good one-sided structural plywood | Structural plywood used internally and externally |
| General internal and external boards | OSB3 | A multi-purpose board |
| Dry interior work | Far Eastern hardwood plywood | Smooth finish for interior, dry conditions |
| General panel work | MDF (green MR MDF stocked) | Used internally and externally |
| Flooring and general construction | Hardboard | Smooth face with a patterned reverse |
Still unsure? Our guide to MDF vs OSB vs plywood compares the main sheet materials in more detail.
Timber cut to size in London: what you can order
- Sheet materials: MDF, OSB3, hardboard, plywood and other wood panels can be supplied in the panel sizes you need. Our sheet materials range also includes decorative MDF, chipboard and large-size plywood.
- Carcassing timber: Joist and stud sizes are planed all round and kiln dried, graded to C16 and C24 and available with Tanalith E treatment. Other sizes are available on request.
- PAR softwood: Finished sized sections can be machined to order, in redwood or whitewood.
- Hardwood and marine timbers: We can source hardwood and marine timbers to suit your requirements, so send us your specification and we’ll confirm what we can supply.
What to tell us when you order
To get an accurate quote quickly, send us:
- The material and type (for example, 18 mm MR MDF or 12 mm marine plywood)
- Finished sizes, with length and width for each piece
- The quantity of each size
- Any finish or grade requirements
- Your delivery postcode, required date and site access details
For example: 12 panels of 18 mm MR MDF, 1200 × 600 mm, delivered to DA1 by 10 November.
How to cut down on waste
A standard sheet is 2440 × 1220 mm, so panel sizes that divide neatly into those dimensions use the sheet most efficiently.
Half a sheet is 1220 × 1220 mm, and quarters are 1220 × 610 mm. If you can adjust your sizes slightly, ask us whether a small change would save a sheet. It’s also worth checking whether grain direction matters for your job and telling us when you order.
Delivery across London and Kent
We deliver cut-to-size and standard orders from our Dartford warehouse across London and Kent.
Share your quantities, postcode, required date and any access restrictions, and we’ll plan the delivery around your programme.
For tips on avoiding site delays, read how to plan timber deliveries.
Get a cut-to-size quote
Send us your materials, sizes, quantities, delivery postcode and required date, and our experienced sales team will come back with a clear quote.
You’re welcome to visit our Dartford warehouse, open 8am to 5pm, Monday to Friday, but we recommend getting in touch first so we can see how we can help.
- Call: 020 7252 8383
- Email: sales@sltimber.co.uk
- Or complete the form on our Contact Us page
