Angle ruler Topex 30C320 600×400 mm roof/angle measuring square

The Topex 30C320 600×400 mm roof/angle measuring square is a rigid L-shaped tool designed for accurate checking and marking of right angles, slopes and alignments in carpentry and construction. With a 600 mm main arm and a 400 mm return, this angle ruler provides a stable reference for roof layout, squaring frames and guiding cutting operations. Its solid construction helps maintain consistent perpendicularity checks on-site and in workshop tasks.

Advantages

The angle measuring square offers a firm L-profile that resists bending during use, ensuring reliable angle control and repeatable markings. Its clear dimensions and flat edges make it suitable for use as a cutting guide and a layout tool. The sizable arms allow measurements and transfers across larger workpieces without the need for additional supports.

Suitable for

• Roof pitch and rafter layout
• Squaring wall frames and floor plates
• Marking cutting lines on boards and sheet materials
• Checking perpendicularity of assembled structures

Key specifications

• Main arm length: 600 mm
• Return arm length: 400 mm
• Shape: L-shaped angle ruler
• Primary use: roof and angle measurements, squaring and marking
• Typical materials compatibility: timber, plywood, chipboard and similar sheet goods

How to use

Place the longer arm of the angle ruler along the reference edge or surface and press the return arm firmly against the adjacent face to establish a right angle. Use the flat edges to run a pencil or scribe to transfer the angle onto the workpiece. For roof layout, align the square with rafter edges or ridge lines and mark pitch intersections and cut lines. When using as a cutting guide, clamp the ruler securely to prevent movement and guide the saw or knife along the edge.

Usage recommendations

Maintain clean, burr-free edges to ensure accurate contact with work surfaces. Store the ruler flat or hung to avoid warping. For repetitive or precision layout tasks, verify alignment against a calibrated straightedge before marking.