How high to hang curtains

Last reviewed October 22, 2026

Hang the curtain rod about 4 to 6 inches above the window frame, and keep at least 2 inches between the rod and the ceiling. You can go higher when there is more space above the window, but each inch higher needs an inch more curtain.

What the guides recommend

Three curtain rod heights under a 9 foot ceilingA window whose frame top is 80 inches above the floor, under a 108 inch ceiling, leaving 28 inches above the frame. The rod top is drawn at 86 inches (6 inches above the frame), 94 inches (halfway to the ceiling) and 98.7 inches (two thirds of the way up). The highest rod top that keeps 2 inches below the ceiling is 106 inches.ceiling, 108 in (9 ft)windowframe top 80 inA: 86 inB: 94 inC: 98.7 infloor
A: 6 in above the frame. B: halfway to the ceiling. C: two thirds of the way up. Heights are to the top of the rod; widths are not to scale.

Step by step

  1. Measure the space above the window: from the top of the window frame (or trim) up to the ceiling, or to the underside of any crown molding.
  2. Choose a rod height from the options above. If the space is small, the rod goes near the ceiling and the 2 in clearance decides.
  3. Measure the drop from the planned top of the rod to where the curtains should end (floor or puddle: see the questions below).
  4. Pick the length with the curtain length check: drop minus how the curtain top sits on the rod. If no length fits, lower the rod a little or buy longer and hem.

Rod height and curtain length by ceiling height

Example window: the top of the frame is 80 in above the floor. Each cell shows the height of the rod top, then the shortest of the common lengths (84, 96, 108 in) that reaches 0.5 in above the floor when the curtain top is level with the rod top. Grommets, tabs and rings change this; see the length check.

Rod top height and shortest common length, frame top at 80 in
CeilingSpace above frame6 in above the frameHalfway to the ceilingTwo thirds of the way upHighest rod top (2 in below ceiling)
8 ft (96 in)16 inrod 86 in; 96 in (10.5 in extra)rod 88 in; 96 in (8.5 in extra)rod 90.7 in; 96 in (5.8 in extra)94 in
9 ft (108 in)28 inrod 86 in; 96 in (10.5 in extra)rod 94 in; 96 in (2.5 in extra)rod 98.7 in; 108 in (9.8 in extra)106 in
10 ft (120 in)40 inrod 86 in; 96 in (10.5 in extra)rod 100 in; 108 in (8.5 in extra)rod 106.7 in; 108 in (1.8 in extra)118 in
12 ft (144 in)64 inrod 86 in; 96 in (10.5 in extra)rod 112 in; longer than 108 inrod 122.7 in; longer than 108 in142 in

What the table assumes:

Worked example: a 9 ft ceiling

The ceiling is 108 in high and the frame top 80 in, so there are 28 in above the window.

84 in curtains are too short for every option here, even the lowest rod.

Common questions

What if there is very little space above the window?

Bob Vila suggests going higher when the space between the top of the window and the ceiling is less than 12 in. In practice the rod then sits near the ceiling, and the 2 in clearance sets the limit.

Should the curtains touch the floor?

It is a style choice. The guides suggest hems about 0.5 in off the floor for a neat look; Bob Vila adds that 1 to 3 in of extra length gives a slight puddle. Add the extra to the drop before you pick a length.

Do I measure from the rod or from the rings?

Measure from one fixed point, ideally the top of the rod, then account for how the curtain top sits on it: grommet and rod-pocket tops sit above the rod, curtains on rings hang below it. The curtain length guide shows how much that changes the length.

What about crown molding or deep trim?

Measure the space to the bottom of the molding or trim, not to the ceiling, and keep the clearance from there.

How wide should the rod be?

Height is only half of the placement. How to measure for curtains covers how far past the frame the rod should reach, and the Curtain Panel Calculator turns the rod width into panels and packs to buy.

Sources and limits

The worked examples are calculations with invented listings, not product data. A product's own listing and instructions always take priority over this guide. Spotted a mistake? See how to report it.