# contractor-calcs

> 55 construction calculators as pure functions. Takeoff: roofing squares, concrete yards, framing, drywall, tile, siding, pavers, brick, block, rebar, gravel, asphalt, insulation, flooring, decking, stairs, piers, sheathing, pool, sod and generator sizing.

Latest version **1.5.0** (published 2026-09-24) · MIT license · 0 weekly downloads

_The full health report (score, vulnerabilities, README, dependency tree, version history) is being computed; this document will grow once it lands._

## Install

```sh
npm install contractor-calcs
pnpm add contractor-calcs
yarn add contractor-calcs
bun add contractor-calcs
```

## Facts

| | |
|---|---|
| Version | 1.5.0 |
| Published | 2026-09-24 |
| First published | 2026-09-24 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | ESM + CommonJS |
| Node | >=18 |
| Dependencies | 0 |
| Unpacked size | 589.9 KB |
| Maintainers | amiemon |
| Keywords | construction, contractor, calculator, roofing, concrete, estimating, takeoff, markup, margin, job-costing, retainage, draw-schedule, tile, siding, hvac, voltage-drop, mechanics-lien, lien-deadline, preliminary-notice, self-employment-tax |

## Links

- npm: https://www.npmjs.com/package/contractor-calcs
- Homepage: https://contractorhandbook.com/calculators/
- npm.io page: https://npm.io/package/contractor-calcs

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_Source: https://npm.io/package/contractor-calcs · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._