Accurate marking and measuring are essential when cutting timber for roofing, framing and general carpentry projects. A 180mm Roofing Rafter Angle Square is a versatile layout tool designed to help measure angles, mark straight cutting lines and check square edges quickly and efficiently.
Also commonly known as a rafter square or speed square, this compact triangular tool is particularly useful for marking 90-degree and 45-degree angles on timber. Its practical design allows it to sit against the edge of a board, providing a reliable reference point for drawing accurate cutting lines before sawing.
The 180mm size makes it convenient to carry in a tool belt or toolbox while providing a useful measuring and marking surface for everyday woodworking tasks. It is especially valuable when working with roof rafters, timber studs, joists and other structural framing components where consistent angles and accurate measurements are important.
Many roofing rafter squares also incorporate graduated angle markings and roof pitch scales, allowing them to assist with setting out common and hip or valley rafter cuts. The exact markings and measuring functions will depend on the individual tool.
Suitable for carpenters, roofers, joiners, builders and DIY enthusiasts, a rafter angle square is a useful alternative to carrying several separate marking tools for routine timber layout work.
Typical Uses
Marking 90-degree and 45-degree cutting lines
Measuring and marking timber angles
Setting out roof rafters
Timber framing and studwork
Checking square edges
Marking joists and structural timber
General carpentry and joinery
Building, roofing and DIY projects
Product: Roofing Rafter Angle Square
Size: 180mm / Approximately 7in
Tool Type: Rafter Square / Speed Square
Application: Angle Measurement, Marking and Layout
Common Functions: Square Marking, 45-Degree Marking and Angle Layout
Suitable Materials: Timber and Other Compatible Marking Surfaces
Suitable for: Roofing, Carpentry, Joinery, Framing and DIY
Whether you're setting out roof timbers, constructing a stud wall or preparing accurate cuts for a woodworking project, a 180mm Roofing Rafter Angle Square provides a compact and versatile solution for everyday measuring and marking tasks.
Always check the tool's markings and accuracy before use. For structural roofing work, cutting angles and dimensions should be calculated from the relevant plans and verified before cutting timber. Additional roof pitch and rafter calculation functions depend on the markings provided on the specific model.