Trade ToolkitFree calculators for the trades
Layout and material calculators and field cheat sheets for finish carpentry, electrical and plumbing. Each one works on a phone at the job, with no account.
Open the Trade ToolkitElectrical
- Conduit BendingOffsets, stub-ups and saddles, marked from the end
- Wire SizeSmallest wire for the load and the run
- Box FillCubic inches in the box, and the box that holds them
Reference sheets
Finish Carpentry
- Accent Wall EditorAny wall shape, five styles, cut list
- Tape CalculatorAdd and divide feet, inches and sixteenths
- Angle FinderYour phone reads the corner and the miter
- Shelf SpacingEqual gaps in any opening
- Coffered CeilingBeam layout and on-center marks
- Wainscoting · Picture FrameWainscot boxes, chair rail, footage
- Board & BattenWainscot battens, spacing and rail height
- Miter & CrownSaw settings for trim and crown, any corner
- StairsRisers, treads, stringer and skirt cuts
- Baluster SpacingHow many, the gap, and a mark for each
- Plywood Cut ListParts in, sheets out, with every rip
- Wall Layout & Material EstimatorSquare feet, boards and sheets with waste
Reference sheets
- Fractions to decimals & mm
- Lumber & sheet sizes
- Nails & screws
- Crown cuts at a 90° corner
- Stairs & guards quick checkIRC 2021 R311.7, R312
- Rough openings
Plumbing
- Pipe OffsetTravel, run and cut for any fitting angle
- Drain SlopeFall over a run, and what the level shows