LOSP Treated Timber
Durable. Stable. Built for Performance - LOSP Treated Timber offers reliable protection against termites, borers, and decay without compromising strength or finish.
LOSP (Light Organic Solvent Preservative) treated timber is designed to increase durability while maintaining the natural stability of the timber. Ideal for both internal and external above-ground applications, it’s a versatile solution for structural, cladding, and joinery projects.
What is LOSP Treatment?
LOSP treatment uses a light organic solvent to carry preservatives deep into the timber, protecting against insect attack and fungal decay. Because the timber is dried before treatment, the process does not increase moisture content - helping maintain dimensional stability and making it ideal for precision applications.
Applications & Hazard Levels
H2 – Internal Use (Dry Applications)
- Protects against termites and borers
- Suitable for framing, trusses, and internal structural timber
H3 – External Above Ground
- Protects against termites, borers, and fungal decay
- Ideal for cladding, external joinery, and outdoor use above ground
- Requires sealing or coating for long-term performance
Key Benefits
- Maintains dimensional stability
- Can be machined and profiled before treatment
- Suitable for a wide range of applications
- Lightweight and easy to work with
- Compatible with standard fixings