---
title: "Floor Sofa Replacement Covers in Custom Sizes: What to Send"
url: "https://cushionguide.com/answers/custom-size-floor-sofa-replacement-covers/"
section: "The Cutting Table"
author: "Nate Kowalski, The Pattern Engineer of Detroit"
author_url: "https://cushionguide.com/masters/nate/"
published: "2026-04-22"
updated: "2026-04-22"
keywords: "floor sofa replacement covers custom size, custom floor sofa covers, replacement covers for floor mattress, teddy floor sofa cover sizes, covers only floor couch"
---

# Can I get replacement covers in custom sizes for my own floor sofa?

*Covers-only is a sizing job, not a sofa job. Give the workshop three numbers per foam piece and how the seat is stacked, and the cover follows the foam.*

Also asked as: Can you alter the sizing by a few inches?; Just the covers, not the whole couch

> **The quick answer:** Yes, floor sofa replacement covers are made in custom sizes through the covers-only listing. The standard seat cover is 78.5 x 39 x 7 in (199 x 99 x 18 cm), and sets have been cut at 80 x 39 x 8 in (203 x 99 x 20 cm) instead. Send each foam piece's exact size and say whether your seat is one tall mattress or two stacked.

![Three stacked box cushions in raspberry, mustard-gray and green-navy nubby weave on a pale floor against a white wall](https://cushionguide.com/media/cushion-covers/raspberry-mustard-green-tweed-cushion-covers-stacked-1600.webp "Three colorways of the same nubby weave, stacked to compare. Each is a two-tone yarn mix that reads as one soft color from a distance.")

## Key facts

- Covers-only orders are made in custom sizes.
- The standard seat mattress cover is 78.5 x 39 x 7 in (199 x 99 x 18 cm), 6.5-7 in (16.5-18 cm) thick per cushion.
- Custom 80 x 39 x 8 in (203 x 99 x 20 cm) seat covers with 40 x 39 x 15 in (102 x 99 x 38 cm) backrest covers have been made.
- Covers for two 31.5 x 79 x 8 in (80 x 200 x 20 cm) mattresses can be made to turn them into a floor sofa.
- The workshop first checks whether the seat is one tall mattress or two stacked.
- Custom-size covers are ordered through the covers-only listing with your sizes written in.
- The corduroy range has no true olive; the closest shade is Water Green.

## Four resized cover sets against the 78.5 x 39 x 7 in standard

| The buyer's setup | Seat covers made | Backrest covers made |
|---|---|---|
| Own sofa a few inches larger than standard | 80 x 39 x 8 in (203 x 99 x 20 cm) | 40 x 39 x 15 in (102 x 99 x 38 cm) |
| Floor depth cut from 39 to 36 in | Two at 78 x 36 x 6.5 in (198 x 91 x 16.5 cm) | Two L-shaped at 39 x 36 x 15 in (99 x 91 x 38 cm) |
| Two 31.5 x 79 in (80 x 200 cm) mattresses made into a floor sofa | Two at about 31.5 x 79 x 8 in (80 x 200 x 20 cm), corduroy | Two L-shaped, foam-filled back pillows |
| Vintage teddy-style sofa on two stacked 7 in (18 cm) mattresses | Standard 6.5-7 in (16.5-18 cm) seat covers | Seat build checked before anything was cut |

## One tall mattress or two stacked: the question that comes first

A cover is a box with a fixed wall height. Get that wall wrong and the cover either sags or refuses to zip. That is why, before a single replacement cover is cut, the workshop asks how your seat is built: one tall mattress, or two stacked.

A buyer in the US with a vintage teddy-style sofa had two 7 in (18 cm) mattresses. The seat covers here run 6.5-7 in (16.5-18 cm) each, so two standard covers fit the stack as built.

Everything else is three honest numbers per piece. If your foam reads 80 x 39 x 8 in (203 x 99 x 20 cm) instead of the standard 78.5 x 39 x 7 in, that is the cover you order. Tolerance is kindness to your future self, so measure every piece, not just the first one.

The [modular floor sofa](https://cushionguide.com/cushions/modular-floor-sofas/) sets show the standard layouts; the [replacement cover Pattern](https://cushionguide.com/guides/floor-sofa-replacement-covers/) and [covers for existing foam](https://cushionguide.com/guides/cushion-covers-for-existing-foam/) cover the rest. What does your seat foam read at the front edge, partner?

## Ordering covers for foam you already own

1. **Let the foam settle, then measure**: If it arrived vacuum-packed, give it 36-48 hours to expand. Then write length x depth x thickness for every piece, with the unit on each number.
2. **Say how the seat is stacked**: One tall mattress or two stacked ones. Seat covers run 6.5-7 in (16.5-18 cm) thick each.
3. **List the backrests separately**: Give each back's size, such as 40 x 39 x 15 in (102 x 99 x 38 cm), and say whether they are L-shaped.
4. **Order through the covers-only listing**: Write your sizes in the order. The [covers](https://cushionguide.com/glossary/#cover-only) are cut to those numbers, not to the standard set.
5. **Pick the fabric family**: There is no true olive in [corduroy](https://cushionguide.com/fabrics/corduroy/); the closest is Water Green. If a color isn't in one range, another family such as [teddy](https://cushionguide.com/fabrics/boucle-and-teddy/) can be used instead.

> **Tailor's margin:** Floor sofa replacement covers follow your foam, not the catalog: a seat measuring 80 x 39 x 8 in gets an 80 x 39 x 8 in cover.

> Two stacked 7 in floor sofa mattresses take two 7 in seat covers, so say how the seat is built before any replacement cover is cut.
>
> — Nate

## Buyer questions

**A common question:** Can you change the sizes of the replacement floor sofa covers? And do you have an olive green corduroy?

**The workshop's answer:** Yes. The set was resized to two floor seat covers of 78 x 36 x 6.5 in (198 x 91 x 16.5 cm) and two L-shaped backrest covers of 39 x 36 x 15 in (99 x 91 x 38 cm). The corduroy range has no true olive or moss green; the closest is Water Green, and other fabric families are open too.

**A common question:** Could the teddy covers be a few inches bigger so they fit the sofa I already own?

**The workshop's answer:** Yes. Against the standard 78.5 x 39 x 7 in (199 x 99 x 18 cm) mattress cover, the workshop made 80 x 39 x 8 in (203 x 99 x 20 cm) mattress covers and 40 x 39 x 15 in (102 x 99 x 38 cm) backrest covers, ordered through the covers-only listing.

**A common question:** My vintage teddy-style sofa has different measurements. Can you make covers to fit it?

**The workshop's answer:** Yes, covers can be customized. The workshop first asked how the seat was built, one tall mattress or two stacked. Its seat covers are 6.5-7 in (16.5-18 cm) thick each, which matched the buyer's two 7 in (18 cm) mattresses.

**A common question:** I have two 31.5 x 79 in (80 x 200 cm) mattresses. Can you make covers to turn them into a floor sofa?

**The workshop's answer:** Yes. Covers are made to the exact size, here 31.5 x 79 x 8 in (80 x 200 x 20 cm) in corduroy, and two L-shaped foam-filled back pillows were quoted with them as one all-included price.

## Questions buyers ask next

### Do I have to buy a whole floor sofa to get new covers?

No. Covers are sold on their own through the covers-only listing. Write the size of each piece in your order, seat mattresses and backrests separately, and the covers are cut to those numbers rather than to the standard set.

### How long should new foam rest before I measure it for covers?

If the foam arrived vacuum-packed, give it 36-48 hours to expand fully before you put a tape on it. Compressed foam reads short on thickness, and a cover cut to that number would come out too shallow.

### Can replacement covers come in a different fabric from my original sofa?

Yes. Any fabric family can be chosen for a covers-only order. If the exact color you want is missing from one range, as olive is in corduroy, where the closest is Water Green, another fabric family can be used instead.

## Related at the atelier

- [How do I get a longer floor sofa, like a 3-seater?](https://cushionguide.com/answers/longer-floor-sofa-extra-modules/): A 3 seater floor sofa longer than 79 in (200 cm) is built from modules, since one piece stops there.
- [Can the floor sofa be made longer than the standard 79 in (200 cm)?](https://cushionguide.com/answers/floor-sofa-longer-custom-length/): Only a little as a single piece: the standard floor sofa is about 79 in (200 cm), and extensions to roughly 82-90 in (208-229 cm) have been quoted, with a surcharge and extra processing time.
- [How high is the floor sofa seat, and can it be raised?](https://cushionguide.com/answers/floor-sofa-seat-height-raise/): The floor sofa seat sits about 13 1/2 in (34-35 cm) off the floor, built from two stacked cushions of roughly 6 3/4 in (17 cm) each.
- [Boneless sofas and couches explained: foam, metal bars and the box they arrive in](https://cushionguide.com/guides/boneless-floor-sofas/): A boneless sofa is a frameless couch built entirely from foam pieces.
- [Modular Floor Sofa Close-Up: Rust Velvet, Foam and Firmness](https://cushionguide.com/readings/rust-velvet-floor-sofa-end-panel-stitch-closeup/): A modular floor sofa depends on foam that fills its cover, and a crisp, square box corner is the visible sign that it does.
- [How to raise floor sofa seat height, layer by layer](https://cushionguide.com/guides/floor-sofa-seat-height-raise/): A floor sofa seat sits about 13.5 to 14.5 in (34 to 37 cm) off the floor, and the simplest way to raise it is to add a layer.
- [Replacement covers for a floor sofa: fit, color change and single pieces](https://cushionguide.com/guides/floor-sofa-replacement-covers/)

*± 1/4 in — Nate*

---

Written by Nate Kowalski (https://cushionguide.com/masters/nate/) for CushionGuide (https://cushionguide.com/about/). The site explains made-to-measure cushions and the partner workshop makes them; measurements are in inches first. This Markdown mirrors the page at https://cushionguide.com/answers/custom-size-floor-sofa-replacement-covers/