How to Choose Curtains for Sliding Glass Doors
Quick answer: panels should total 1.5–2× the door width — for a 72-inch slider that's 108–144 inches of fabric, or two 54-inch panels (two 72-inch for a fuller look). Mount the rod 4–6 inches above the frame, extending 6–12 inches past each side, and choose floor length.
- The width rule
- How many panels
- Length: floor, puddle or sill
- Rod height and extension
- Hardware that works
- Worked example: 72-inch slider
- FAQ
The width rule
Curtains should look full, not stretched flat. Panels need to total 1.5–2× the door width in fabric. A 72-inch sliding door wants 108–144 inches of combined panel width. Two 54-inch panels = 108 inches (the minimum); two 72-inch panels = 144 inches (the fuller, more finished look).
How many panels
Two panels — one on each side — is the standard for sliders, because the door needs to slide freely along its track and panels stacked on one side would block it. For very wide doors (96–108 inches), a third panel or a panel that splits in the middle works better. The key: the curtain must stack completely off the glass.
Length: floor, puddle or sill
Floor length, about 1/2 inch above the floor, is the standard for sliding doors — it looks clean and doesn't drag. Puddle length (2–4 inches pooling on the floor) is dressier for formal rooms. Avoid sill length over a floor-to-ceiling glass door; it looks like the curtain was cut wrong.
Rod height and extension
Mount the rod 4–6 inches above the door frame (or closer to the ceiling in rooms with tall ceilings — it visually raises the door). Extend the rod 6–12 inches past each side of the frame so the stacked panels sit beside the glass, not on it. Center the rod bracket over the door and check that the finials clear any walls.
Hardware that works
A traverse rod or curtain track with a cord is the classic solution — panels open from the center and stack completely off the glass. Grommet panels on a regular rod work if you leave enough rod on each side for the stack. Thermal or blackout panels add insulation to the biggest glass surface in the room.
Worked example: a 72-inch slider with 96-inch rod
- Door width = 72 in → fabric total = 108–144 in
- Rod = 72 + 12 + 12 = 96 in (6 in each side)
- Panels = two 54-in panels (or two 72-in for full look)
- Length = rod at 4 in above frame → floor-minus-1/2-in panels
FAQ
Curtain panels should total 1.5–2× the door width. For a 72-inch slider that's 108–144 inches of fabric — two 54-inch panels, or two 72-inch panels for a fuller look.
Two panels for most sliders — one per side so the door can slide freely. For a 72-inch door, two 54-inch panels give the minimum fullness; two 72-inch panels look fuller.
Floor length that just clears the floor (about 1/2 inch above it) is standard for sliders. Puddle length is a dressier look. Avoid sill length — it looks unfinished.
Hang the rod 4–6 inches above the door frame, or closer to the ceiling in rooms with high ceilings. Mount it at least 1/2 inch above the frame.
Use a traverse rod or curtain track with panels that open from the center and stack off the glass. Grommet panels on a regular rod work too if you leave room at the sides. Thermal panels help insulate.