Curtain length guide
A curtain length style says where the panel ends. It is not, by itself, the fabric length on a packet. In this test build, the length style you choose is recorded in your plan, and rod height to floor is shown as entered. No finished panel length is calculated, because length drops are still to verify.
Test draft note: the exact drop for each length style, and which length fits which room or use, have not yet been checked against manufacturer documents. Those numbers and fits are still to verify before any live publication, so this test page gives definitions only, and no drop number and no best length for a room.
Length styles, defined
| Length style | Where the panel ends | What to check |
|---|---|---|
| Sill length | At the window sill | The sill position you measured, and anything below the sill |
| Apron length | At the apron below the sill | The apron position you measured |
| Break at floor | At the floor, with a slight break in the fabric | The floor level where the rod height was measured |
| Puddle | On the floor, with fabric resting on the floor | Floor traffic, pets, and cleaning, as practical checks you make yourself |
How length is measured in this test build
You enter rod height to floor. That number is shown as entered. It is not turned into a finished panel length in this test build, because the amount to add or subtract for each style is still to verify. Do not treat rod height to floor as a finished panel length.
Limits
- Radiators, doors, and furniture below a window can change which length is practical, and you must check them on site.
- A puddle length rests on the floor, so it needs more cleaning care than a length that ends above the floor.
- No length style in this test page is claimed to be best for every home.
Doubts readers raise
How long should curtains be? There is no single answer in this test page, and that is why readers disagree about it. On live desktop search on 28 Oct 2026, that exact phrase showed 4 Reddit results on page 1. The honest answer is to pick the length style by where the panel ends, sill, apron, break at floor, or puddle, and by what sits below the window, then record that style in a planner. No drop number and no best length for a room is stated here, because those are still to verify.
Do curtains need to touch the floor? No, not always. Break at floor ends at the floor with a slight break, puddle rests on the floor, sill and apron end above the floor. Touching the floor is a style choice, not a rule, and a puddle length needs more cleaning care and more care around floor traffic.
What if a radiator or furniture sits below the window? Check it on site before you choose. A length that ends at the sill or apron may be the practical choice there, but this test page does not recommend one length for that case, because room fits are still to verify.
Next step
Choose a length style in the bay window curtain planner, the sliding door curtain planner, or the multi-window wall curtain planner.