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Doors and windows aren’t decorations sitting on a wall — they cut real openings through it. Delete one and the wall closes back up.

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Place a door or window

Pick Door or Window in the Build tab. A ghost preview follows your cursor; the moment you hover a wall it snaps onto it, showing green when the spot is valid and red when it isn’t (off the wall, or overlapping another opening). Click to place. While placing:
  • R flips which way the opening faces.
  • Alt + click force-places over a collision warning.
  • Esc cancels.
  • The continuation chip in the helper panel (C to cycle) switches between Place once and Place multiple, so you can drop a row of windows without re-picking the tool.
Window preview snapping onto a wall and cutting an opening
Openings can’t hang off the end of a wall — they clamp to its bounds — and curved walls can’t host them. Gable and roof walls can: see roofs.

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Types and variants

Every variant is a setting on the placed opening, so you can change it any time from the properties panel:
  • Doors have three modes — Door, Opening (a frameless cutout with no leaf), and Garage. Door types: Hinged, Double, French, Folding, Pocket, Barn, and Sliding. Garage types: Sectional, Roll-up, and Tilt-up.
  • Windows offer Fixed, Sliding, Casement, Awning, Single Hung, Double Hung, Bay, Bow, and Louvered, plus the same frameless Opening mode.
Door type and mode controls in the properties panel

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Move an opening

Grab the move handle on a selected opening (or use the Move action in its panel) and drag. The opening slides along its wall, staying inside the wall’s bounds — and if you drag onto a different wall, it hops across and re-hosts there. Away from any wall the ghost turns red and won’t drop. With Lines snapping active, alignment guides catch on neighboring doors, windows, and wall items so you can line up a facade precisely.
Dragging a door along a wall and onto another wall

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Sizes

Doors default to 0.9 × 2.1 m and windows to 1.5 × 1.5 m (picking a different type adjusts the default — a double door starts at 1.5 m wide, a garage door at 2.7 × 2.4 m). To resize:
  • Drag the width and height arrows on the selected opening.
  • Or set exact values with the Width and Height sliders in the panel’s Dimensions section.
Doors always sit on the floor. Windows also move vertically: drag the window up or down the wall (or use the panel’s position controls) to set its sill height — new windows start 0.5 m above the floor.

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Swing and direction

  • Flip Side in the panel (or R with the opening selected) turns the opening to face the other side of the wall.
  • Hinged doors have a Swing section: Hinges Side (Left / Right) and Direction (Inward / Outward), plus a handle-side choice.
  • Sliding, pocket, and barn doors choose their slide direction (Left / Right).

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Open and close

Doors and operable windows really open. Press E with one selected to toggle it, or drive it gradually with the operation slider in the panel. In walkthrough mode, click a door to open and close it as you explore. Frameless openings and fixed windows don’t operate.

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Delete an opening

Select the opening and press Delete or Backspace, or use the Delete action in its panel. The hole it cut disappears with it — the wall heals instantly.