Mason's Straightedge PRO 300 cm — PRO model 3-01-02-18-300, rigid 3000 mm leveling bar

PRO masonry straightedge model 3-01-02-18-300 is a rigid 3000 mm leveling bar designed for masonry and plastering tasks. The 300 cm straightedge provides a continuous reference line for aligning bricks, blocks and render, and for checking surface flatness and screeding mortar over long sections. Constructed for use on building sites, the tool is intended for professional builders and contractors who need a long, stable guide for laying courses and achieving even surfaces.

Advantages

The straightedge offers a durable, rigid profile that resists bending over its full 3 m length, ensuring consistent alignment across large surfaces. Its length reduces the need for frequent repositioning, which saves time on continuous runs of masonry or plaster. The bar's straight, easily readable edge simplifies visual inspection and measurement when setting levels and checking for hollows or high spots. The tool is compatible with typical masonry and plastering workflows and can be used with standard screeding and measuring accessories.

Suitable for

• Aligning and leveling courses of brick, block or stone
• Checking flatness and straightness of rendered or plastered walls
• Screeding mortar and creating level guides over long spans
• Site layout tasks where a long, stable reference is required

Key specifications

• Overall length: 3000 mm (3.0 m)
• Type: rigid straightedge / leveling bar for masonry and plastering
• Primary use: alignment, flatness checking, screeding
• Suitability: professional construction and contracting work
• Edge: straight, precision-ground profile for reliable reference

How to use

Place the straightedge along the area to be aligned or screeded, resting it on the reference points or previously established datum lines. For laying courses, use the bar to check brick or block alignment and to transfer level across the span. When screeding mortar, move the straightedge along the guides or bearing edges to remove excess material and establish a flat plane. Maintain steady pressure and keep the edge in contact with the surface to detect high and low spots efficiently. Store the bar flat or hung to avoid accidental bending when not in use.

Usage recommendations

Inspect the straightedge before use for dents or warping that could affect accuracy. Use complementary leveling tools such as spirit levels or laser levels when precise tolerances are required. For transport, protect the edge and avoid stacking heavy objects on the bar to preserve its straightness over time.