View All

Grid List

  1. 1
  2. 2
  3. 3
  4. 4
View All

Grid List

  1. 1
  2. 2
  3. 3
  4. 4

Treated Timber

MP Moran is an long established builders, plumbers and timber merchant located in the London and Hertfordshire area, providing some of the finest sawn & treated / carcassing timber products to those carrying out commercial or domestic projects. If you need treated timber or carcassing timber prices this is the place for you to browse an extensive product range in C16 strength grade.

Our treated timber and carcassing timber is sourced from some of the leading manufacturers and suppliers in the industry, we work hard in building up strong relationships to make sure that our customers get the highest quality product to ensure longevity in whatever they are doing.

Our treated timber is available in a wide range of sizes, making it ideal for both smaller and larger projects. Each timber size is regularly price checked to make sure all of our customers are getting the best, competitive rate - saving London and Hertfordshire builders money as much as we can.

Also available on a next day delivery basis, our treated timber can be delivered to the door of your project, making sure that none of your deadlines are put on hold due to you waiting on additional materials. Our award-winning transport fleet is made up of the most up to date vehicles, with our staff specifically trained in health and safety to ensure that these large timber products are transported safely. What’s more, we also look to helping our environment and aim to reduce our carbon footprint as much as possible.

If you would like more information on any of our treated timber, or you would like to find out more about any of our services and company goals, please get in touch with a member of our team either in one of our branches or by calling 0843 600 5566.

Find out more about our treated timber / carcassing timber.

Our treated timber range is pre-treated with Osmose Naturewood. By specifying timber that is treated with the appropriate end use it will ensure its long life.
Our treated timber products met a variety of British and European standards, the Highways agency and NHBC.

The types of preservation system available are;
Protim - an organic system that pressure treats timber used in construction projects, where the required protection is to Class UC1, UC2 and UC3.
When using Protim in an external environment it should be coated with an external coating.
Celcure preservation system is used for wood that has been treated with an Osmose preservative system. It also preserves the timber to Classes UC1, UC2, UC3 and UC4.
MicroPro - is a preservation system is also used for timber that has been tretaed with Osmose. It again protects the timber to Classes UC1, UC3 and UC4

Treated timber class table.
Class 1 - Above ground, covered. Permanently dry, risk of insects.
Class 2 - Above ground, covered. Occasional risk of getting wet.
Class 3a - Above ground, coated. Exposed to frequent wetting.
Class 4 - In contact with the groud or fresh water. Permanently exposed to wetting.

What is the timber preservation process
1. Timber is transfered 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
6. The timber has now completed the Osmose preservation process

Treated timber guards against attacks by these wood boring insects and fungi.
Common Furniture Beetle
Wood boring weevil
Death Watch Beetle
House Longhorn Beetle
Dry Wood Termites
Subterranean Termites
Cellar Fungus
Pore Fungus
Dry Rot

C16 and C24 Timber Grading
Timber strength graded to C16 or sometimes C24 is the equivalent to BS EN 14081 and BSEN519:1995
C24 is a stronger grade than C16.
C16 graded timber kiln dried is mainly used on internal floor joinst and roof joists. Online we offer lengths up to 6.0m - although longer lengths are available on request.
C16 treated timber is specified when the strength is required in an outside environment. Treated C16 timber is often found in roof rafters, timber framing, ceiling joists, floor joists and deck joists and other garden buildings.

What is treated timber used for?
The location of where your are going to use your timber determines how you should use it.

Internal Use Permanently Dry
The timber is commonly used for constructing Pitched Roofs, Floor Boards, Architrave and Skirting, Upper Floorboards.

Internal: Some Wetting
Tile battens, timber built frames (like stud walls), timber in roofs where condensation could be a problem, timber in flat roofs, ground floor joints and upper floor joists.

External: Subject to frequent wetting
Roof soffits, fascias and bargeboards, cladding, guttering and external loading timbers

External: Fencing and boarding, agricultural use but not subject to ground contact, landscaping and decking use but again not in contact with the ground.

External: Permanently in the ground or in permanent water contact
Fencing posts and gravel boards, agricultural use and in contact with the ground, retaining walls of earth (like sleepers), playground areas and gates.

External: Permanent ground and water contact
Maring use, piers, jetties, sea defences and ship building.

Common sizes for treated timber are;

Sawn Size Regularised Size / Finished Size
47mm x 50mm 45mm x 45mm
47mm x 75mm 45mm x 70mm
47mm x 100mm 45mm x 95mm
47mm x 125mm 45mm x 120mm
47mm x 150mm 45mm x 145mm
47mm x 175mm 45mm x 170mm
47mm x 200mm 45mm x 195mm
47mm x 225mm 45mm x 220mm
75mm x 75mm 70mm x 70mm
75mm x 100mm 70mm x 95mm
75mm x 150mm 70mm x 145mm
75mm x 175mm 70mm x 170mm
75mm x 200mm 70mm x 195mm
75mm x 225mm 70mm x 220mm