Observed arrival · 2026-09-14
Genba Toolbox: A Jobsite Calculator in the Browser
A Japanese, no-login calculator suite for construction measurements, material weights, quantities, rebar, blocks, slopes, arcs, and retaining walls.
Field notes
The site divides practical construction work into nine named calculators, including slope and carport measurements, material weight from volume and density, arc geometry, floor takeoff, retaining-wall concrete, rebar, and block quantities. A memo function stores dimensions, material details, and contact notes on the device, and calculated results can be copied together. The page identifies this as a browser version of a smartphone app and cautions that outputs are reference figures subject to drawings, manufacturer information, and site conditions.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue