Adding and positioning windows
Place windows on any wall and size them — they show up in the 2D plan and the 3D view, and Flow Check keeps space in front of them.
Place windows on any wall in two clicks. Set width and position; Smart Flow Check keeps clearance in front of them.
Step by step
- 1
Pick a window type
Open the Build panel (on a phone, tap Structural & Interior under the plan). A standard Window and a Sliding Window (horizontal slider) are in the Doors & Windows section. A bay window is the Bay Window tile in the Structural section: tap it and pick Regular (bumps out from one wall) or Corner (wraps two walls at an outside corner). Bay windows go on outside walls only. See bay and corner bay windows.
- 2
Click the wall
Click on the wall where the window goes. The window lands at a default position; drag along the wall to reposition it. While you place, move or select it, the plan hides its other measurements and shows just its distance to the nearest corner (or wall meeting this one) on each side.
A standard window placed on the wall, drawn to scale and dimensioned. - 3
Put it an exact distance from the corner
Select the window and tap one of its two distances on the plan, type the one you want (for example 2 ft 0 in, or 60 cm) and press Enter: the window moves so that side reads exactly that. The box that opens also has a Center button, which puts the window halfway between the two ends. In the window's settings the same numbers are From left / From right, or From top / From bottom on a wall that runs up and down the plan; tap one to type it. Typing a new number of feet resets the inches to 0. See the same steps for doors, with pictures.
On an up-and-down wall the distances are From top and From bottom. - 4
Set width and height
Select the window and, in its settings, tap Width or Height and type the value. Mount is the sill height above the floor. A bay window's settings name its size differently: Chord is its width along the wall and Project is how far it pushes out.
A sliding window sized to 5 ft — the arrows show which way it slides. - 5
Verify in 3D
Switch to 3D View. Windows render with glass and frame; daylight changes how the room reads. Adjust position if it feels wrong.
Tips
10–20% of floor area as glazing
Total window area should be 10–20% of the room's floor area for normal daylight. Below 10% feels dark; above 20% gets glass-heavy.
Mind bedroom egress
Bedroom windows must meet egress requirements (usually 5.7 sq ft openable). Sliding windows commonly do; small fixed windows don't.
Frequently asked questions
What window types can I add?
Window and Sliding Window (Build → Doors & Windows), plus bay windows, Regular or Corner (Build → Structural → Bay Window). See windows overview for the full guide.
How do I add a bay window?
Build → Structural → Bay Window → Regular, then tap an outside wall. For a Corner bay, tap one outside wall, then the adjoining wall that lights up. The bay carves the wall for you and renders in 3D with its alcove. See bay and corner bay windows.
How do I remove a window without deleting the wall?
Select the window and press Delete, or tap the trash button in its inspector. Only the window goes — the wall is untouched. To move it to another wall instead, drag it; it snaps to the new wall.
Start designing your room
Put this into practice in the floor planner: draw it, furnish it, walk through it in 3D — on web, iOS, and Android.
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