One app... unlimited scales

Let Scala Architectural and Engineering Scale change the way you measure printed drawings on the go and at your desk.  With fixed and variable scales there is no limit to measuring drawings of any scale, in any unit, even if the scale is unknown.

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On the go...


or at your desk


Measure fixed scale drawings

If you know the scale of a drawing, place your device on the drawing, scroll to the scale of the printed drawing and watch the chosen scale slide in.


Measure variable scale drawings

If the scale of a drawing is unknown, use variable scale to match the scale of one known element, lock the scale and use it to measure all elements on that drawing.

Watch video here


Display conversion units

Choose between Architctural (U.S.), Engineering (U.S.) or Metric scales.  Set secondary measurement conversion units to dispaly in meters, feet and inches, decimal feet, centimeters or millimeters and control their precision.

Three units scales

ARCHITECTURAL SCALE (U.S.) Full Scale (12”=1’-0”), 6”=1’-0”, 3”=1’-0”,1 1/2”=1’-0”, 1”=1’-0”, 3/4”=1’-0”, 1/2”=1’-0”, 3/8”=1’-0”, 1/4”=1’-0”, 3/16”=1’-0”, 1/8”=1’-0”, 3/32”=1’-0”, 1/16”=1’-0”
ENGINEERING SCALE (U.S.) 1”=10’, 1”=20’, 1”=30’, 1”=40’, 1”=50’, 1”=60’, 1”=80’, 1”=100’
METRIC SCALE 1:1, 1:2, 1:5, 1:10, 1:20, 1:25, 1:30, 1:40, 1:50, 1:75, 1:100, 1:125, 1:200, 1:250, 1:300, 1:400, 1:500, 1:1000

If you have ever showed up at a meeting without a scale, you will want to buy Scala. This app is a life-saver — you’ll always have a scale with you.
— Michael Noll, Archtoolbox.com
This is a very handy tool to measure printed drawings.
— Larry Mortimer AIA, AIAeb.org
Featured in The Best Mobile Apps for Architects at archtoolbox.com