Treated Softwood

Type: Softwood
Source: Scandinavia


Treated Softwood from Scandinavia is a very popular species for timber
cladding and is used for internal and external cladding projects. Treated
Softwood works well with both hand and machine tools. Its colour is pale
yellowish-brown to reddish-brown. For its weight, the timber is strong.

Download Datasheet
Suitability of Profiles

Wide choice of standard profiles.

Profile Cladding Joint Horizontal Diagonal Vertical Thickness
Tongue & Groove Closed Yes Yes Yes 20mm min.
Rectangular Closed No No Yes 16-25mm+
Feather Edge Closed Yes No No 9mm x 16-15mm
Shiplap Closed Yes No Yes 18mm
Parallelogram Open Yes No No 16-25mm+
(up to 50mm)
Ecova Clad Profiles Guide
Desired service life (years)
Natural durability class Need for treatment/modification Occasionally wet Frequently wet
1 (Very durable) Suitable without treatment >60 60
2 (Durable) Suitable without treatment 60 30
3 (Moderately durable) Suitable without treatment except for tall or exposed buildings 30 15 (untreated)
4 (Slightly durable) Treatment required 15-30 years treated 15-30 years treated
5 (Not durable) Treatment required 15-30 years treated 15-30 years treated
Common Name Natural Durability Class BSEN350:2:1994 Sapwood Treatability Movement Strength
Treated Softwood (European) 4 Resistant Small Medium
  • Easy to work with both hand and machine tools.

If you have decided that Timber Cladding is going to be one of the materials on your project the next step is to create a specification that will meet the criteria and expectations you, and your client have.

We offer installation guidance, detailing guidance based on TRADA documentation, with a wealth of knowledge and information on how different timbers will perform over the life span of your project.

Considerations that should be made when it comes to weather, along with how elevation and design variations can impact timber cladding.