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Showing 16 out of 52 Products

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Showing 16 out of 52 Products

Sawn & Treated Timber

MP Moran has been supplying sawn and treated timber in the London and Hertfordshire area for almost 50 years. We stock C16 and C24 graded timber for a variety of commercial or domestic projects and we deliver right across the south east of England.

You can rest assured that our sawn treated timber is sourced from industry-leading manufacturers. We've worked hard to build strong relationships with our suppliers – all with the aim of making sure that you get premium-quality products to ensure longevity in whatever you're doing.

If you would like more information on any of our sawn treated timber or about our in-store services, please feel free to get in touch.

You can pay a visit to one of our branches, email us at [email protected] or give us a call on 01923 831 686.

Why should I choose MP Moran for sawn treated timber?

What is sawn treated timber

Sawn and treated timber is pressurised and injected with a preservative to protect against moisture, insects (such as beetles and termites) and fungal decay including pore fungus and dry rot . Our timber is pre-treated with Osmose Naturewood to ensure its long life and make it suitable for external, moist and wet conditions.

What is the timber preservation process?

Here's a step-by-step guide to how our sawn and treated timber is produced:

  1. The timber is transferred into a treatment vessel.
  2. A vacuum pulls the air out of the vessel.
  3. Osmose preservative then fills the vessel.
  4. The vessel is pressurised, forcing the preservative into the timber.
  5. The preservative is removed and a final vacuum is applied.

What are the different classes of treated timber?

According to British Standard BS8417 there are four different use classes (UC) for treated timber. They are as follows:

  • UC1: Above ground, covered. Permanently dry, risk of insects.
  • UC2: Above ground, covered. Occasional risk of getting wet.
  • UC3: Above ground, coated. Exposed to frequent wetting.
  • UC4: In contact with the ground or fresh water. Permanently exposed to wetting.

What are the different types of preservation system?

  • Protim: An organic system that pressure-treats timber used in construction projects, where the required protection is to UC1, UC2 and UC3. Needs an external coating for outdoor environments.
  • Celcure: Used for wood that has been treated with an Osmose preservative system. It preserves the timber to UC1, UC2, UC3 and UC4.
  • MicroPro: Also used for timber that has been treated with Osmose. Protects to UC1, UC3 and UC4.

What is sawn treated timber used for?

Sawn and treated timber can be used for a range of projects but it will require different treatment depending on where it is going to be used and for what purpose. To give you an idea, we've included some examples below:

Environment: Internal, permanently dry.
Examples: Floorboards, architrave, skirting.

Environment: Internal, with some wetting.
Examples: Stud walls, floor joists, flat roofs.

Environment: External, frequent wetting.
Examples: Soffits, fascias, cladding, guttering.

Environment: External, not in contact with the ground.
Examples: Boarding, landscaping, decking.

Environment: External, permanent contact with the ground.
Examples: Fencing, retaining walls, gates.

Environment: External, permanent contact with water.
Examples: Piers, jetties, sea defences.

What are the standard sawn treated timber sizes?

We stock a wide range of sawn and treated timber sizes, so we can cater for both smaller and larger projects. Each size is regularly price-checked to make sure that you receive our most competitive rates.

Sawn treated timber comes in these standard lengths but please note that not all of these will always be available in stock:

1.8 metres / 2.1m / 2.4m / 2.7m / 3.0m / 3.3m / 3.6m / 3.9m / 4.2m / 4.5m / 4.8m / 5.1m / 5.4m / 5.7m / 6.0m / 6.3m

The various thicknesses are listed in the table below. 'Sawn size' is the dimension after the timber is sawn but not yet planed to a smooth finish. 'Finished size' refers to its dimension after planing, which is why it's always slightly smaller.


Sawn Size

Regularised Size / Finished Size mm/in

47mm x 50mm
1.85 x 2ins

45mm x 45mm
1.75ins x 1.75ins

47mm x 75mm
1.85ins x 2.95ins

45mm x 70mm
1.75ins x 2.75ins

47mm x 100mm
1.85ins x 4ins

45mm x 95mm
1.75ins x 3.75ins

47mm x 125mm
1.85ins x 5ins

45mm x 120mm
1.75ins x 4.75ins

47mm x 150mm
1.85ins x 5.90ins

45mm x 145mm
1.75ins x 5.70ins

47mm x 175mm
1.85ins x 6.9ins

45mm x 170mm
1.75ins x 6.70ins

47mm x 200mm
1.85ins x 8ins

45mm x 195mm
1.75ins x 7.7ins

47mm x 225mm
1.85ins x 8.85ins

45mm x 220mm
1.75ins x 8.66ins

75mm x 75mm
3ins x 3ins

70mm x 70mm
2.75ins x 2.75ins

75mm x 100mm
3ins x 4ins

70mm x 95mm
2.75ins x 3.75mm

75mm x 150mm
3ins x 6ins

70mm x 145mm
2.75ins x 5.70ins

75mm x 175mm
3ins x 6.9ins

70mm x 170mm
2.75ins x 6.7ins

75mm x 200mm
3ins x 7.8ins

70mm x 195mm
2.75ins x 7.7ins

75mm x 225mm
2.95ins x 8.85ins

70mm x 220mm
2.75ins x 8.7ins


What lengths does your 4x2 timber come in?

4x2 inches (100mm x 50mm) would be the sawn dimensions or the nominal dimension, prior to the timber being planed to create a smooth finish. The finished dimension would be around 95-97mm x 47mm. 4x2in sawn treated timber is generally available in lengths of: 3.0m / 3.6m / 4.2m / 4.8m.

What price is your 2x4 timber?

This is one of the most common questions that we get asked. You can find the cost of our 2x4in sawn treated timber here.

What is off-sawn timber and rough-sawn timber?

'Off-sawn timber' and 'rough-sawn timber' are trade terms. They mean the same thing and refer to the rough, unfinished timber that comes as a result of using a large band saw to saw sections from a tree trunk. Those sections are then sanded to create a smooth finish. Rough-sawn timber should not be used for structural purposes as it has not been strength-tested or -graded.

What are the different grades of timber?

Timber is strength-graded to C16 or C24, in line with BS EN 14081 and BSEN519:1995.

C24 is stronger than C16 and therefore tends to be more expensive. Both are kiln-dried timbers and can be used on internal floor and roof joists, while treated C16 and C24 timber will be required for external environments such as decking and garden buildings.

Online, we can offer lengths up to 6.0mtr – although longer dimensions are available on request.

When can I expect delivery of my sawn treated timber?

You can have your sawn and treated timber delivered to your site the next day, making sure you stay on track to meet your deadlines. Our FORS Gold-standard transport fleet comprises the most up-to-date vehicles, while our staff are health-and-safety-trained to ensure that your drop-off runs smoothly. What's more, you can benefit from free delivery on online orders over £198 including VAT, although please note that some exceptions may apply.

Check out our delivery information for further details.

What if I want a return or a refund?

We may be able to offer a return and a full refund, depending on at which point and for what reason you no longer require your order. There are also some products for which we cannot accept returns, so please make sure that you read our returns policy for further information.

Order your sawn treated timber from MP Moran today 

You can trust MP Moran to deliver the sawn and treated timber that you need for your project. All that's left for you to do is to browse our range, find the timber for which you're looking and place your order. You can opt for delivery to site or you can Click & Collect from one of our branches.

And if you have any questions or would like to speak to a member of our friendly team, please don't hesitate to email [email protected] or give us a call on 01923 831 686.

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