Leveling Straightedge STABILA AL1LS 250 cm — STABILA precision leveling tool

STABILA AL1LS 250 cm is a 2.5-metre straightedge and precision leveling tool intended for accurate surface checks, alignment and transfer of levels on large surfaces. Manufactured by STABILA, this aluminum straightedge combines a long reference edge with a lightweight profile to support layout work, screeding checks and alignment tasks in construction and renovation environments. The tool is designed for professional use when an extended, rigid edge is needed to verify flatness and carry out layout references over larger spans.

Advantages

The STABILA AL1LS 250 cm features a lightweight yet rigid aluminum profile that ensures a straight reference over 2.5 metres while remaining easy to handle on site. Its long length reduces the need for multiple short straightedges and simplifies checking large surfaces for deviations. The tool’s profile is optimized for repeated use in construction conditions and for accurate transfer of levels, providing a dependable, consistent reference line for measuring and layout operations.

Suitable for

• Checking flatness and straightness of floors, walls and large panels
• Transferring levels and establishing reference lines over long spans
• Supporting screeding, plastering and flooring layout work
• Alignment and control tasks during renovation and fit-out works

Key specifications

• Length: 250 cm (2.5 metres)
• Material: extruded aluminum profile for a balance of rigidity and light weight
• Profile type: straight reference edge suitable for surface checking and layout
• Typical use: professional construction and renovation tasks requiring a long reference edge

How to use

Position the STABILA AL1LS 250 cm along the surface to be checked so that the reference edge rests evenly on the points of interest. For flatness checks, lay the straightedge across the surface and observe gaps or light passing beneath the edge to identify high or low spots. To transfer levels, align the straightedge with an established reference and mark the target positions along its length. Move the tool as needed along the work area to verify consistency and repeat measurements across the entire span.

Usage recommendations

Store the straightedge on a flat surface or hang it by its mounting points to prevent bending. Clean abrasive residues and debris from the reference edge after use to preserve accuracy. When transporting, protect the edge from impacts that could deform the profile; if the straightedge shows any visible bends, verify accuracy before continued use.