---
title: "Custom Floor Mattress and Floor Cushion Sizes, Any Thickness"
url: "https://cushionguide.com/answers/custom-size-floor-mattress-cushion/"
section: "The Cutting Table"
author: "Nate Kowalski, The Pattern Engineer of Detroit"
author_url: "https://cushionguide.com/masters/nate/"
published: "2026-03-24"
updated: "2026-09-24"
keywords: "custom floor mattress, custom size floor cushion, futon floor mattress, floor mattress custom thickness, long floor cushion"
---

# Can you make a floor cushion or floor mattress in a custom size and thickness?

*Yes. Give me three numbers and a fill preference, and the rest is paperwork. Here are the follow-ups, in the order buyers usually send them.*

Also asked as: Floor or futon mattress, 4-6 inches, twin or full?; I need a mattress 27½ x 80¼ x 4 in (70 x 204 x 10 cm).

> **The quick answer:** Yes: floor cushions and floor mattresses are made to any length, width and thickness, with firm fill if you want it. Real orders include twin and full floor mattresses 4-6 in thick, a 75 x 31.5 x 8 in (190 x 80 x 20 cm) mattress and a 16 x 84 in linen cushion. Your size is added to the listing or sent as a custom link.

![Black, gray and white pinstripe corner floor cushion with backrest pillows in an attic bedroom with oak beam and jute rug](https://cushionguide.com/media/corner-floor-cushions/gray-pinstripe-corner-floor-cushion-attic-oak-beam-1600.webp "A tailored monochrome pinstripe fills the low corner of an attic bedroom, warmed by an oak beam, oak chest and jute rug.")

## Key facts

- Floor cushions and floor mattresses are made to custom length, width and thickness.
- Firm fill is available.
- Twin and full floor or futon mattresses 4-6 in (10-15 cm) thick can be made.
- Floor mattresses come with or without a backrest and armrests.
- The linen floor cushion's standard 15.75 x 31.5 in (40 x 80 cm) can be shortened to 15.75 x 29.5 in (40 x 75 cm).
- The thick 12 in (30 cm) floor couch can be lengthened, for example to 50 x 35 x 12 in (127 x 89 x 30 cm).
- Custom sizes are added to the listing or sold through a custom link.

## “So any size at all?”

Any length, any width, any thickness, partner. Firm fill too. A floor mattress can come plain, or with a backrest and armrests; say which.

Once the numbers are agreed, the shop either adds your size as an option on the [floor cushion](https://cushionguide.com/cushions/floor-cushions/) listing or sends a custom purchase link. Twin and full [floor mattresses](https://cushionguide.com/glossary/#floor-mattress) 4-6 in (10-15 cm) thick went onto the tufted corduroy listing exactly that way.

## Real custom sizes from past orders

| Piece | Inches | Centimeters | Note |
|---|---|---|---|
| Floor or futon mattress, twin or full | 4-6 in thick | 4-6 in (10-15 cm) thick | Added to the tufted corduroy listing |
| Floor mattress | about 75 x 31.5 x 8 | 190 x 80 x 20 | Custom quote |
| Floor mattress | about 27.5 x 80 x 4 | 70 x 204 x 10 | With or without backrest and armrests |
| Firm cotton floor cushion | 18 x 40 x 5 | 46 x 102 x 13 | Firm fill, custom link |
| Linen floor cushion | 16 x 84 | 41 x 213 | Long custom length |
| Thick floor couch | 50 x 35 x 12 | 127 x 89 x 30 | Backrest along the 50 in side |

## “Which number goes first?”

Width first, then length, then thickness. Width means depth front to back: 18 x 40 x 5 in is 18 in deep, 40 in long, 5 in thick. Sizes describe the cushion itself, not the floor around it.

Thickness is the number people forget, and on the floor it is your whole seat. Read the [floor cushion thickness pattern](https://cushionguide.com/guides/floor-cushion-thickness-guide/), then run the [foam firmness finder](https://cushionguide.com/studio/foam-firmness-finder/). What are your three numbers?

> **Tailor's margin:** A custom floor mattress needs three numbers: length, width and thickness. Add the fill, firm or standard, and whether you want a backrest.

> Floor cushions can be made to any length, width and thickness; a 12 in thick floor couch was stretched to 50 x 35 x 12 in.
>
> — Nate

## Buyer questions

**A common question:** Do you make a floor or futon mattress about 4-6 in thick, in twin or full?

**The workshop's answer:** Yes. The shop added those sizes to the tufted corduroy cushion listing.

**A common question:** Can I get a floor cushion 18 in deep, 40 in long and 5 in thick, in firm cotton?

**The workshop's answer:** Yes. Custom sizes, thickness and firm fill in cotton fabric are made to order through a custom purchase link.

**A common question:** Can I have the linen floor cushion at 15¾ x 29½ in (40 x 75 cm) instead of the standard size, in ecru or cream?

**The workshop's answer:** Yes. The standard is 15.75 x 31.5 in (40 x 80 cm), but 15¾ x 29½ in (40 x 75 cm) can be made. Choose the cream or ecru shade from the linen color chart.

**A common question:** Can the thick 12 in floor couch be made longer?

**The workshop's answer:** Yes. A 50 x 35 x 12 in version was quoted, with the backrest along the 50 in side.

## Questions buyers ask next

### Do I have to give my floor mattress size in inches?

No. Centimeters and inches both work; just state the unit. On dual-unit listings the centimeter size is made unless you note the exact inches, and the shop confirms units before quoting.

### What size is the floor couch in the listing photos?

The main photo set is 28 x 56 in (71 x 142 cm): seat plus backrest and two bolsters. Other photos show 28 x 64, 28 x 60, 24 x 60 and 24 x 56 in. The dropdown size refers to the seat cushion.

### Can a very long floor cushion be made in one piece?

Long runs have been made: a 16 x 84 in (41 x 213 cm) linen floor cushion, for one. A buyer asking about 16 x 115 in was told custom lengths are added to the listing or sent as a link.

## Related at the atelier

- [Can you make one extra large floor cushion, like 59 x 59 in?](https://cushionguide.com/answers/giant-floor-cushion-one-piece-or-split/): An extra large floor cushion is not made as one single piece; it is split into two halves that push together.
- [Do you make a small square floor cushion for one person, or a pet?](https://cushionguide.com/answers/small-square-floor-cushion-one-person/): Small single-seat floor cushions are made, with near-square custom sizes like 26 x 26 in (66 x 66 cm) ordered through the meditation cushion listing.
- [How deep should a floor cushion be?](https://cushionguide.com/answers/floor-cushion-depth-guide/): A standard floor cushion is 24 or 27 in (61 or 69 cm) deep, and an adult who wants to sit cross-legged should order at least 28 in (71 cm).
- [Tiny house floor cushions: frameless seating for lofts and studios](https://cushionguide.com/concepts/tiny-house-and-loft-floor-seating/): Tiny house floor cushions work best frameless: foam and fabric with no legs, in pieces that fit through a normal door.
- [Floor cushion thickness: how thick before you stop feeling the floor](https://cushionguide.com/guides/floor-cushion-thickness-guide/): For most floor seating, choose 4 to 6 in: a tufted floor cushion is about 4 in (10 cm) as standard and a floor-seating seat about 6 in (15 cm).
- [Hexagonal Floor Cushion in Cream Zigzag Jacquard for Long Sits](https://cushionguide.com/readings/hexagonal-cream-zigzag-jacquard-floor-cushion/): A floor cushion for long sitting needs a firm seat that keeps your hips off the hard floor and a shape you can turn on without meeting a corner.
- [Zabuton and meditation floor cushions: choosing size, thickness and fill](https://cushionguide.com/guides/zabuton-meditation-floor-cushion-size/)

*± 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-mattress-cushion/