140 x 45

140mm x 45mm timber is a common size for structural timber used in construction in Australia. It is often used as a joist, bearer, or lintel in residential and commercial building projects.

Joists are horizontal structural members that support the flooring system, while bearers are horizontal structural members that support the weight of the structure above them, such as the walls and roof. Lintels, on the other hand, are horizontal structural members that span over door and window openings to support the weight of the structure above them.

140mm x 45mm timber is typically made from softwood species, such as pine or spruce, and is commonly used in residential construction for floor and roof framing, wall framing, and bracing. It can also be used as a structural element in outdoor decking and pergola construction.

The specific use of 140mm x 45mm timber will depend on the design and requirements of the building or structure being constructed. The size and spacing of the timber will be determined by the load they need to support and the structural requirements of the building.