Accessibility

How it is measured

Every page the application registers is rendered in a real browser under seven profiles: a desktop window (1280 px), a narrow window (860 px) and a phone (390 px), each with and without reduced motion, and a 720 px layout viewport standing in for a 1440 px window at 200% zoom. Each is rendered with the workspace empty and with a project loaded. The nine pages of this site are rendered the same way. On each rendering the check reads: a label on every control, no positive tab order, a visible focus indicator, 24 px target size or spacing, no horizontal scroll at the narrow widths, heading order, computed text contrast, and that live status messages reach the accessibility tree.

What the checks are not

They are automated measurements of the rendered page. They are not a screen-reader session, and a person using assistive technology may find what a measurement cannot. Reports of that kind go to the address in the footer and are treated as defects.

Known limits

• Measuring on a drawing needs a pointer. Counts, lengths and areas are drawn on the sheet. A quantity can be typed on the Estimating page instead.
• The 3-D model view is a canvas. It takes the keyboard: arrow keys turn, plus and minus zoom, Home fits the model. The clash results and the code checks beside it are ordinary tables.
• The film on this site's home page is decorative. It is a canvas labelled as an image, it pauses under reduced motion, and every claim it illustrates is written in the page text.
• A scanned drawing is an image. A sheet with a text layer is searchable; one without is not until it is recognised, in English, from Settings.