The recently updated Scale Master® Pro XE makes it easy to do Linear, Area and Volume takeoffs with speed, accuracy and confidence when estimating, bidding or planning. Use it on plans, blueprints and maps as well as out of scale drawings. It has 91 built-in Scales; 50 Imperial (Feet-Inch) units and 41 Metric, (including ten custom scales for out-of-scale drawings) for maximum versatility with architectural, engineering and civil scales.