zbCAD

Tools

• zbCAD

  2D drafting with a typed command line, object snaps, layers and associative dimensions. Opens and saves DXF and plots to scaled vector PDF.

  Open/Documentation
• Sheet Metal Layout

  Flat patterns for rectangle-to-round transitions, cones, offset reducers, elbows and branches. Exports DXF and SVG, or prints full size across multiple sheets.

• Taper Studio

  Tapered roof insulation layout: drains, crickets and saddles, panel layout and takeoff, and average R-value. Exports a plan along with DXF, Excel and CSV.

• CPM Scheduler

  Critical path scheduling with a Gantt chart: finish-to-start, start-to-start, finish-to-finish and start-to-finish links with lag, work calendars and holidays, float, baselines and progress. Imports and exports MS Project XML.

• Wind Zone Visualizer

  Roof and wall wind zone geometry per ASCE 7-22, drawn to the building's actual dimensions.

Guides

• Estimating from First Principles

  How to build a construction estimate from the ground up: scope, logistics, quantity takeoff, materials, labor by crew and production rate, and general conditions, with what usually gets missed at each step.