Curtain drop and pole length
The drop is the length of the curtain. Where you measure from depends on the heading; where you measure to depends on the look.
Checked against UK retailer and maker guides on 21 October 2026.
Where to measure from
- Eyelet curtains: from the top of the pole (Dunelm).
- Pencil pleat curtains: from the eye of the curtain ring, or the top of the track (Dunelm).
- No pole yet: measure from where it will go, and Dunelm suggests adding 10 cm to the drop.
Where to measure to
| Style | Where it ends (Dunelm) |
|---|---|
| Sill length | 1 cm above the windowsill |
| Below sill (apron) | 15 cm below the windowsill |
| Floor length | 1 cm above the floor |
| Puddle | 2 to 7 cm onto the floor |
Dunelm says floor-length curtains are the most popular choice. Dunelm adds that below-sill (apron) curtains help with insulation.
Ready-made drops
| Drop | cm |
|---|---|
| 48 in | 122 cm |
| 54 in | 137 cm |
| 72 in | 183 cm |
| 90 in | 229 cm |
| 108 in | 274 cm |
If your measured drop falls between two sizes, choose the longer one and take it up. Dunelm’s hemming tip: hang the curtain, mark 5 cm below where you want it to end, cut, then fold up 2.5 cm twice and iron, sew or use bonding tape.
How long a pole?
- Pole: window width plus 40 cm, 20 cm each side (Dunelm).
- Track outside the recess: window width plus 20 cm, 10 cm each side (Dunelm).
- Track inside the recess: the recess width.
- Pole width is measured without the finials (the decorative ends).
Questions
How do I measure curtain drop?
For eyelet curtains, from the top of the pole; for pencil pleat, from the ring eye or top of the track, down to 1 cm above the sill or floor (Dunelm).
What is a standard curtain drop?
Ready-made drops are usually 54, 72 or 90 inches (137, 183 or 229 cm).
How much wider should a curtain pole be than the window?
About 40 cm wider, 20 cm each side (Dunelm).
Where these numbers come from
- Dunelm: how to measure for curtains
- Dunelm: how to measure for tracks and poles
- Ideal Textiles: curtain size chart
Checked 21 October 2026. Makers round sizes differently, so always check the dimensions on the product you're buying.