How Long Should Curtains Be? Length Guide | Ona
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Updated October 2026 · By the Ona team · 8 min read
The short answer: most curtains should end at the floor or ½″ above it. Measure from where the top of the fabric will sit down to the floor. That number is your drop. Subtract ½″ to float, keep it as is to kiss the floor, or add 4″ to puddle. Choose sill or apron length only where something blocks the floor.
Key numbers
- Float: ½″ above the floor. Panel length = drop − ½″.
- Kiss: just touches the floor. Panel length = drop.
- Soft break: about 2″ rests on the floor. Panel length = drop + 2″.
- Puddle: about 4″ pools on the floor. Panel length = drop + 4″.
- Common ready-made lengths: 63″, 84″, 96″, 108″ and 120″.
Ona's curtains come in lengths from 63″ to 120″, sized per flat panel. Our curtain measuring guide covers width and fullness. This guide is all about length.
What decides curtain length?
Two choices: where the rod goes, and how the hem meets the floor. For floor-length curtains, the size of the window doesn't set the length. The height of the fabric top does. Raise the rod 6″ and you need a curtain 6″ longer.
So decide the rod height first. Then pick a hem finish. The length follows from both.
Choose a hem finish
The last inch changes the look. Here is how each finish works, and where the top of the fabric has to sit for a 96″ panel.
| Finish | Where the hem sits | Panel length | Fabric top for a 96″ panel | Best for |
|---|---|---|---|---|
| Float | ½″ above the floor | Drop − ½″ | 96½″ | Curtains you open every day. Pets. Easy cleaning. |
| Kiss | Just touches the floor | Drop | 96″ | A tailored, finished line. The safe default. |
| Soft break | About 2″ rests on the floor | Drop + 2″ | 94″ | A relaxed line. Hides a slightly uneven floor. |
| Puddle | About 4″ pools on the floor | Drop + 4″ | 92″ | Formal, low-traffic rooms. The least light under the hem. |
Ona's size helper uses float (−½″), floor kiss (0″) and puddle (+4″). The measuring guide adds a soft break (+2″).
Not sure whether your curtains should reach the floor at all? That question has its own guide: should curtains touch the floor?
How to measure curtain length
You need a tape measure, a pencil and about ten minutes.
- Set the rod height. Put the rod up, or mark exactly where it will go. For a classic line, Ona's guide puts the rod about 4–6″ above the window frame.
- Mark the fabric top. This is where the length starts, and it isn't always the rod. Grommets sit below the fabric top, so a little fabric rises above the rod. Back tabs hold the rod behind the panel, and a rod pocket encloses it.
- Measure down to the floor in three places. Measure at the left, the center and the right. Floors are rarely level. Use the shortest reading. That is your drop.
- Adjust for the hem. Subtract ½″ to float. Keep the drop to kiss. Add about 2″ for a soft break or 4″ to puddle.
- Pick the closest listed length. If your number lands between two lengths, move the rod, size up and let the hem rest, or hem the panels. The curtain calculator does steps 4 and 5 for you, along with the width.
Worked example. An 8 ft room has a window frame that tops out at 80″. You set the rod so the fabric top sits at 84½″. For a float, 84½″ − ½″ = 84″. An 84″ panel hangs ½″ above the floor.
Two details people miss. Rings and clips add their own drop between the rod and the fabric, so measure from the fabric top, not the rod. And measure to the finished floor: on top of the carpet, or on top of a rug that runs under the curtains.
Standard curtain lengths
Most ready-made curtains come in a handful of lengths. Here is what each one is usually for, and which Ona styles come in it.
| Length per panel | In feet | In cm | Typical use | Ona styles at this length |
|---|---|---|---|---|
| 63″ | 5 ft 3 in | 160 cm | Sill or below-sill length on many windows | Grommet pair (42″ or 52″ wide), back-tab pair, velvet pair |
| 72″ | 6 ft | 183 cm | Below-sill length on taller windows | Grommet pair (42″ or 52″), back-tab pair, velvet pair |
| 84″ | 7 ft | 213 cm | Floor length with the rod just above a standard window | Grommet pair (42″ or 52″), back-tab pair, velvet pair |
| 90″ | 7 ft 6 in | 229 cm | Floor length with the rod higher on an 8 ft wall | All four styles, including the 70″ wide panel |
| 95″–96″ | about 8 ft | 241–244 cm | Rod near an 8 ft ceiling, or mid-wall on a 9 ft wall | All four styles at 96″. Ona doesn't make 95″. |
| 102″ | 8 ft 6 in | 259 cm | Sold by some stores for 9 ft rooms | Not made by Ona. Choose 96″ to float or 108″ to break. |
| 108″ | 9 ft | 274 cm | 9–10 ft ceilings, or a high rod over a tall window | Grommet pair (52″ wide), wide panel, back-tab pair, velvet pair |
| 120″ | 10 ft | 305 cm | Fabric top near a 10 ft ceiling | Back-tab pair only |
| 144″ | 12 ft | 366 cm | 12 ft ceilings and double-height rooms | Not made by Ona |
Lengths are per panel. In a size, width comes first: 52 x 84 means one panel 52″ wide and 84″ long. Every Ona size and color is on the curtain size chart.
Shop by length: 84-inch curtains · 96-inch curtains · 108-inch curtains.
What length curtains for your ceiling height?
For a floor-length look, an 8 ft ceiling usually takes 84″, 90″ or 96″ curtains. A 9 ft ceiling takes 96″ or 108″. A 10 ft ceiling takes 108″ or 120″. Which one you need depends on how high you hang the rod.
| Ceiling | Rod just above the window | Rod higher on the wall | Fabric top close to the ceiling | Full sizing |
|---|---|---|---|---|
| 7 ft (84″) | 84″, with the fabric top as high as the brackets allow (about 82–83″): a 1–2″ break | — | Same as left | — |
| 8 ft (96″) | 84″ floats from a fabric top of 84½″ | 90″ floats from 90½″ | 96″ kisses at 96″, or breaks 2″ from 94″ | 8-foot ceiling |
| 9 ft (108″) | 84″ floats, but about 2 ft of wall stays bare above it | 96″ floats from 96½″ | 108″ breaks 2″ from 106″, or puddles 4″ from 104″ | 9-foot ceiling |
| 10 ft (120″) | 84″ floats, but about 3 ft of wall stays bare above it | 108″ floats from 108½″ (or 96″ from 96½″) | 120″ breaks 2″ from 118″, or puddles 4″ from 116″ (back-tab pair only) | 10-foot ceiling |
| 12 ft (144″) | 84″ floats | 108″ or 120″ floats from 108½″ or 120½″ | Not possible with Ona: the longest panel is 120″ | — |
Assumes the window frame tops out about 80″ above the floor, which is common in US homes. Yours may differ, so measure it.
Two rules fall out of the table:
- 96″ curtains can't float under an 8 ft ceiling. A float needs the fabric top at 96½″, which is above the ceiling. Close to the ceiling, 96″ kisses or breaks.
- 108″ curtains can't float under a 9 ft ceiling, for the same reason. Near the ceiling, they break or puddle.
Where to start, by rod height (from Ona's measuring guide):
- Classic. Rod about 4–6″ above the frame. Start with 84″ or 96″.
- Dramatic. Rod about 10″ above the frame, for a taller line. Start with 96″ or 108″.
- Near the ceiling. A continuous line from ceiling to floor. Start with 108″, or 120″ in the back-tab style.
Leave room for the brackets below the ceiling or any crown molding. More on rod placement: how high to hang curtains.
How long should curtains be in each room?
In most rooms, floor length. The exceptions are rooms where something sits below the window.
| Room or window | Length to aim for | Why |
|---|---|---|
| Living room | Floor: float or kiss. Puddle only if you rarely open them. | Long panels hung high make the window read taller. |
| Bedroom | Floor: kiss or soft break | A float leaves a ½″ strip of light at the floor. |
| Nursery or kids' room | Floor: float, or kiss for a darker room | A hem off the floor stays cleaner. |
| Dining room | Floor: kiss or puddle | Low traffic and a formal feel suit a fuller hem. |
| Sliding glass door | Floor: float | Panels slide and stack every day, so keep the hem clear. |
| Behind a sofa or bed | Floor: float | The furniture hides the hem. A float keeps fabric from bunching behind it. |
| Kitchen | Sill or apron | Keep fabric well away from the stove and the sink. |
| Bathroom | Sill or apron | Keep fabric clear of the shower and tub. |
| Over a radiator, heater or vent | Sill or apron, stopping above the heater | Don't drape fabric over heat sources or block vents. Follow the heater maker's guidance. |
| Window seat or built-in | Sill | Longer fabric would sit on the cushion. |
How long should bedroom curtains be? Floor length, with a kiss or a soft break if you want the room as dark as possible. Ona's grommet pair, wide panel and back-tab pair are lined, with supplier-listed 100% blackout fabric. Light can still enter at the top, sides and center, so hang them high and wide. The velvet pair is unlined and room-darkening, not blackout.
Floor length, sill length or apron length?
Floor length suits most windows. Sill or apron length is for windows where the floor is blocked or impractical. Floor-length and full-length curtains mean the same thing.
| Length | Where the hem lands | The look | Best for |
|---|---|---|---|
| Floor (full length) | From ½″ above the floor to about 4″ on it | Finished. Makes the window read taller. | Living rooms, bedrooms, dining rooms, doors |
| Apron (below sill) | About 4″ below the sill, covering the trim beneath it | Neat and casual | Windows over radiators or furniture |
| Sill | Just above the sill, about ½″ clear | Practical and tidy | Kitchens, bathrooms, window seats |
| Café | Covers the lower half of the window | Cottage, private | Kitchens, street-facing windows |
How long should curtains be compared to the window? Floor-length curtains run well past the window. Sill-length curtains stop about ½″ above the sill. Apron-length curtains run about 4″ below it.
On a short window, floor-length curtains hung high and wide can make the window look larger. Sill length can make the same window look smaller.
Ona doesn't make café or tier curtains. Its shortest panels, 63″ and 72″, can work as sill or apron length when your fabric-top-to-sill drop is close to one of them.
Is it better to have curtains too long or too short?
Slightly too long. An extra inch or two rests on the floor as a soft break and looks intentional. Curtains that stop 2″ or more above the floor tend to look as if they shrank.
What if your measurement falls between two lengths?
You have three options:
- Move the rod. Raise it to use the longer length, or lower it to use the shorter one. A change of an inch or two rarely shows.
- Size up and let it rest. Up to about 2″ on the floor reads as a soft break. About 4″ reads as a puddle.
- Hem the panels. Lined and blackout panels are best hemmed by a tailor.
Example. Your drop is 88″. A 90″ panel gives a 2″ soft break. Raise the rod 2½″ and the same panel floats. An 84″ panel would hang 4″ short, which is too short.
Ona doesn't make custom lengths. Its 90″ length, in all four styles, covers many in-between drops. Measure carefully before hemming. Returns are limited to damaged, defective or incorrect items; alteration-related damage is not covered.
Common curtain length mistakes
- Measuring from the rod. Measure from the fabric top. Grommet and back-tab headings sit differently on the rod.
- Measuring before you choose the rod height. The length depends on it.
- Measuring in one spot. Floors slope. Measure in three places and use the shortest.
- Rounding down. A curtain that stops short of the floor is the most common length mistake. Round up and adjust the rod.
- Forgetting the ring drop. Rings and clips lower the fabric below the rod.
- Mixing lengths in one room. Keep rods at one height and hems on one line across a wall.
- Puddling curtains you open every day. Fabric on the floor collects dust and needs rearranging after every pull. A float is easier.
How Ona's lengths fit
Every Ona size is the flat size of one panel. A pair is 2 panels; the wide panel is 1. Folds reduce the width a panel covers once it hangs.
| Length | Grommet pair (42″ or 52″ wide) | Wide grommet panel (70″) | Back-tab & rod-pocket pair (52″) | Velvet grommet pair (52″) |
|---|---|---|---|---|
| 63″ | 42″ and 52″, 8 colors | — | 6 colors | Dark Green, Burgundy, Dark Gray |
| 72″ | 42″ and 52″, 8 colors | — | 6 colors | Dark Green, Dark Gray |
| 84″ | 42″ and 52″, 8 colors | — | 6 colors | Dark Green, Dark Gray, Sage Green |
| 90″ | 42″ and 52″, 8 colors | 8 colors | 6 colors | Dark Gray, Sage Green |
| 96″ | 42″ and 52″, 8 colors | 8 colors | 6 colors | Dark Gray, Sage Green |
| 108″ | 52″ only, 8 colors | 8 colors | 6 colors | Burgundy, Dark Gray |
| 120″ | — | — | 6 colors | — |
- Lined: the grommet pair, wide panel and back-tab pair. The supplier lists their fabric as 100% blackout. Ona hasn't tested it, and light can still enter at the top, sides and center.
- Unlined: the velvet pair, which is room-darkening, not blackout.
- Headings: metal grommets on the grommet pair, wide panel and velvet pair. Hidden back tabs and a rod pocket on the back-tab pair.
- Not included: rods, hooks and rings. No custom sizes.
- Shipping and returns: ships to the US only, with free standard shipping shown at checkout. Returns are accepted for damaged, defective or incorrect items only.
Find your length with the curtain calculator · Shop 84-inch, 96-inch or 108-inch curtains · Browse all curtains
Curtain length questions, answered
What is the ideal length for curtains?
For most rooms, the ideal length reaches the floor or stops ½″ above it. Measure from the fabric top to the floor, then subtract ½″ to float, or keep the number to kiss the floor. Use sill or apron length where a radiator, counter or window seat is in the way.
What length curtains do I need for an 8-foot ceiling?
Usually 84″, 90″ or 96″. With the rod just above a standard window, 84″ reaches the floor. With the rod higher on the wall, 90″ floats from a fabric top of 90½″. With the fabric top close to the ceiling, 96″ kisses or breaks slightly. It can't float under an 8 ft ceiling.
If I have 9-foot ceilings, how long should my curtains be?
Choose 96″ or 108″. A 96″ panel floats ½″ above the floor when its fabric top sits at 96½″, about a foot below the ceiling. A 108″ panel suits a fabric top close to the ceiling, at about 104–106″, where it breaks or puddles 2–4″.
Is it okay if curtains are 2 inches off the floor?
It works, but it reads as a little short. Most floor-length curtains float no more than ½″ above the floor. If yours hang 2″ short, lower the rod about 1½″, or choose the next length up.
Should curtains go to the floor or the bottom of the window?
To the floor in most living rooms and bedrooms. Floor length looks finished and makes a window read taller. Stop at the sill, or about 4″ below it, only where the floor is blocked: by a radiator or heater, a counter, a window seat or a built-in.
What is the most common curtain length?
84″ and 96″ are the most common ready-made lengths. 84″ reaches the floor from a rod just above a standard window, and 96″ suits a higher rod. Ona makes both in its three pair styles, and 96″ in the wide panel too.
Are floor-length and full-length curtains the same?
Yes. Both mean panels long enough to reach the floor from the rod, whether they float, kiss, break or puddle. Window-length or sill-length curtains stop at or just below the window instead.
How long should curtains be behind a couch?
Floor length, with a ½″ float. The couch hides the hem, and the float keeps fabric from bunching behind the cushions. Leave a few inches between the couch and the curtains so the panels can still slide.
Should all curtains in a room be the same length?
Yes. Hang every rod in the room at the same height and choose the same hem finish, so the hems form one line. If the windows differ in height, align the rods rather than the window frames.
How we made this guide
Ona's fit rules come from its measuring guide and the size helper on each product page: measure from the fabric top, then float (−½″), kiss (0″), soft break (+2″) or puddle (+4″). Standard lengths reflect ready-made sizes sold across US stores. Ceiling-height rows are our own arithmetic from those rules. Checked October 2026.