Standard external 90×45 H3 M10 Treated Framing Timber 90mmx45mm LOSP.
Available in 3.6m, 4.2m, 4.8m, 5.4m and 6.0m lengths.
Used for decking framing and other outdoor structures where structural requirements are needed.
We only buy the top appearance grade quality to assure you the best available framing on the market.
H3 timber is a type of treated softwood that is designed for outdoor use in above ground applications. It is commonly used for structural and non-structural applications such as decking, fencing, pergolas, retaining walls, and garden edging.
H3 timber is treated with preservatives that protect against decay caused by fungi and insects. The treatment process involves impregnating the timber with preservatives under pressure to ensure deep and thorough penetration. This makes the timber suitable for use when exposed to weather and damp conditions.
LOSP (Light Organic Solvent Preservative) treatment is a type of timber preservation process that involves impregnating timber with a combination of light organic solvent and preservative chemicals to protect it against decay and insect attack.
The process begins by placing the timber in a pressure vessel, which is then evacuated to remove air and moisture. The vessel is then filled with a mixture of light organic solvent and preservative, which is forced into the timber under pressure. This ensures deep and thorough penetration of the preservative into the timber.
LOSP treatment is typically used for softwood timber, such as pine or spruce, and is suitable for above-ground applications where the timber is exposed to weather and damp conditions, such as decking, cladding, and exterior joinery.
MGP10 is a stress grade classification used for structural softwood timber in Australia. This grading system is based on the allowable bending stress, which is the maximum stress that the timber can withstand before it starts to deform or fail.
In the MGP10 grading system, the “MGP” stands for “Machine Graded Pine” and the “10” indicates that the allowable bending stress for the timber is 10 megapascals (MPa). MGP10 is commonly used for structural softwood timber in Australia for applications such as decking, framing, roof trusses, and beams.
The MGP grading system is a machine stress grading process, which involves passing each piece of timber through a machine that measures the stiffness of the timber and assigns a grade based on the results. This ensures that the grading process is consistent and accurate.
It’s important to note that the use of MGP10 graded timber may be subject to additional requirements and regulations, such as minimum sizes, maximum spans, and treatment requirements, depending on the specific application and building code requirements. It’s essential to consult with local building codes and standards, as well as qualified engineers or other professionals, to ensure that the appropriate timber grade and structural rating is selected for the specific project.