basicUpdated May 31, 2026

Length field (Value Command Bar)

How to type measurements while drawing — accepted formats, units, fractions, and keyboard shortcuts.

The Length field at the bottom of the canvas is where you type a measurement while drawing. It accepts walls, guides, and tape dimensions, and the same measurement parser is used by the Prebuilt Room dialog. This page is the reference for what the field accepts, how unit defaults work, and which keys commit or cancel.

When the field appears

  • Wall tool (desktop): the field shows below the canvas as soon as you start drawing — you can begin typing right away. The angle hint at the bottom of the canvas updates as your cursor settles on a cardinal or 45-degree direction.
  • Wall tool (mobile): the field shows after you pick a direction on the direction pad, with an on-screen text field and a Set button.
  • Tape Measure tool: the field opens during a two-point measurement.
  • Prebuilt Room dialog: the Width and Height fields use the same measurement parser, but with one important difference — bare numbers default to feet (imperial) instead of inches. See Drop a prebuilt room.

Imperial formats

Your project's unit system controls which set of formats the field uses. In imperial:

Input Meaning
5'3" 5 feet 3 inches
5' 3" 5 feet 3 inches (space optional)
5' 5 feet exactly
36" 36 inches
36 36 inches (bare number defaults to inches in the Length field)
6 1/2" 6 and one-half inches
6-1/2" Same — hyphen accepted as a separator
1/4" 1/4 inch
5' 6 1/2" 5 feet, 6 and one-half inches

Bare numbers in the Length field default to inches. The Prebuilt Room dialog is the exception — it defaults bare numbers to feet so 10 in imperial means 10 feet — see Drop a prebuilt room.

Metric formats

Input Meaning
3m 3 metres
2.5m 2.5 metres
300cm 300 cm = 3 metres
2500mm 2500 mm = 2.5 metres
2500 2500 mm (bare number defaults to mm)

Keys (desktop)

The desktop Length field is display-only — it doesn't take focus or open a text-input cursor. Keystrokes are captured globally while you're actively drawing, so you can just start typing.

Key Action
09, ., ', ", /, space, letters Append the character to the field. Letters cover unit suffixes like m, cm, mm.
Enter or numpad Enter Commit the typed length at the locked angle.
Backspace Delete the last character.
Esc Cancel the current draw — clears the field and exits the in-progress segment.

Mobile

On mobile the field is a real text input — tap Set to commit, or use the on-screen keyboard's done action. The hint text reads e.g. 5'3" or 63 for imperial projects and e.g. 1.6m or 160cm for metric.

Tips

  • Press Esc to clear a typo and start the field over without leaving the tool.
  • The field accepts a leading space or extra spaces between feet and inches — 5' 3" and 5'3" parse the same.
  • Fractions use a forward slash (/). Mixed numbers use a space or hyphen between the whole number and the fraction.
  • If the field shows the hint text instead of your input, you haven't typed anything yet for this segment — the placeholder clears as soon as you start typing on desktop, or as soon as you pick a direction on the d-pad on mobile.
  • For room-sizing in Prebuilt Room, bare numbers default to feet (imperial) instead of inches. Everywhere else in the editor, bare imperial numbers are inches.

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