The Hewer Trade Toolkit: free calculators for the trades
By the Hewer team · · 2 min read
The Hewer Trade Toolkit is a free set of field calculators built by people who work in the trades. Each tool answers one question you actually have on a job, fast, and draws the answer so you can check it by eye. No account, no ads, nothing to pay.
What's in it
Tools are grouped by trade. Here is everything in the Toolkit right now, with a link straight into each one:
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
- Cabinet LayoutDrag the appliances, tap a box: a kitchen in stock widths
- Wall Layout & Material EstimatorSquare feet, boards and sheets with waste
- ArchRadius, pivot and station heights for an arch
Electrical
- 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
- Conduit FillHow many wires or cables fit, and the smallest conduit for them
- Can Light LayoutHow many recessed lights, the spacing and the lines to snap
- Bar Light LayoutRows of shop lights or linear fixtures, spaced for even light
- Ceiling Fan SizeThe fan for the room, its downrod and clearances
- Service LoadLoad calculation and the service size a house needs
- Panel ScheduleCircuit directory for the panel door, legs balanced
Plumbing
Roofing
Framing
Decks
Concrete & Hardscape
Built for the job site
- Fast answers. The result is at the top of the screen and updates as you type.
- A drawing with every answer. Stairs, walls, offsets and roofs are drawn to scale, so a wrong input looks wrong.
- Your units. Feet and inches to the sixteenth, decimal inches, or metric. Every tool works in all of them.
- Remembers your last job. Each tool keeps your last inputs, and a Recent row gets you back to them.
- Job folders and PDFs. Save layouts to a job folder and export them as one PDF to share with the customer or the crew.
- Reference sheets. A Reference tab holds quick cheat sheets that go with the tools.
- English, Spanish and Russian.
Popular tools
- BTU calculator for sizing a mini split or window unit.
- Roof pitch calculator from a level, a degree reading or the phone itself.
- Stair stringer calculator for risers, treads and the stringer cut.
- Conduit fill calculator for how many cables fit.
Missing a tool?
Use Request a tool inside the app and tell us what you need. Requests are read by the Hewer team and decide what gets built next.
How it connects to Hewer
The Toolkit is free on its own. Hewer, the contractor CRM, puts the same calculators in the crew app, next to the jobs, schedule and clock-in, so your crew has them where they already work. See the features or start a trial.
Questions
Is the Hewer Trade Toolkit really free?
Yes. Every tool is free, with no account and no ads.
Does it work in metric?
Yes. Every tool works in metric as well as feet and inches, decimal inches and inch fractions. Pick your units in Settings.
Do I need to install anything?
No. Open tools.hewer.app in any browser. You can add it to your home screen so it opens like an app.
