Observed arrival · 2026-11-07
Tape and Square’s trade calculators
A free collection of calculators for electrical work, networking, carpentry, and roofing, with formulas, assumptions, and source references.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Homeowners, DIYers, and tradespeople
- Worth noticing
- The VLAN planner offers CSV or Markdown export; the roofing materials calculator makes its waste factor editable.
Field notes
The homepage groups nine named calculators into electrical, networking, carpentry, and roofing sheets, pairing entries with a specific output or reference. Examples include a stair-stringer cut diagram with code checks and a VLAN planner that exports CSV or Markdown; the roofing materials estimator exposes its waste factor for editing. These are homepage descriptions rather than independently tested tool results.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue