Triangular scale rulers
300mm triangular scale rulers are available in either Rulex or Verulam (RIBA approved) brands.
Please see our scale selector for the scales available for the 300mm triangluar scale rulers:
Scales: Metric A, Imperial, O,1,2, and 6 (available in Academy and Verulam)
Scales: 4, 9, ISO NORM 1 and ISO NORM 2 (available in Academy only)