Observed arrival · 2026-11-13
Sill & Rafter puts the rules behind home-project calculators
A free collection of calculators for planning home projects, covering tasks from gas-line and septic sizing to gutters, windows, concrete, and paint.
- For
- Homeowners planning repairs, renovations, or yard projects
- Worth noticing
- Sources range from building-code tables and state rules to manufacturer charts and extension-service bulletins.
Field notes
The homepage organizes tools across six home-project sections, with links to individual calculators and additional links for the plumbing, roof, and yard categories. It says the underlying figures come from published sources and that calculations are tested against those sources. The site also says it records the edition followed and explains how it interprets tables that leave room for doubt; local codes may differ, so it recommends confirming results before building.
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Editorial observations of this landing page, not a rating.
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