We have developed this handy scale rule to help when estimating projects that need designing. The rule has 1:100 and 1:50, and on the reverse markings for a 600×600 ceiling grid for both scales.

The marks allows you to space out 600×600 luminaries or ventilation panels. When the scheme is not designed.

Always check against a known measure before using.

Scale RuleDownload
Estimating

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