Skip to content

Every purchase helps us protect our Historic places

Your basket 0 items

You have no items in your basket.

Triangular scale rulers

£7.50

This Triangular Scale Rule is a stylish rule suitable for architects and engineers to calculate dimension in a blue print or building plan without the use of time-consuming and complicated math equations. The ruler would be ideal for use in the office or at home. Scales are 1:1, 1:10, 1:2, 1.20,1:5 and 1:50.

Delivery information

Orders received before 2:00pm on a working day (Mon-Fri) are normally dispatched the same day. See Delivery Information for further details.