---
title: "Custom L-Shaped Floor Sofa Sized to Your Wall Runs"
url: "https://cushionguide.com/answers/custom-l-shaped-floor-sofa-size/"
section: "The Cutting Table"
author: "Nate Kowalski, The Pattern Engineer of Detroit"
author_url: "https://cushionguide.com/masters/nate/"
published: "2026-06-30"
updated: "2026-09-24"
keywords: "custom L-shaped floor sofa, L-shaped floor sofa dimensions, custom size floor sofa, corner floor sofa sizing, modular floor sofa L shape"
---

# Can the L-shaped floor sofa be made to fit my wall dimensions?

*An L is two straight sofas and one corner. Get the arithmetic right and the wall takes care of itself.*

Also asked as: Can I get an L shape with custom dimensions?; A smaller version of the L-shaped couch?

> **The quick answer:** Yes, within limits: a custom L-shaped floor sofa is built from two sofas resized to your wall runs, each section 39 in (100 cm) deep. A 90 x 65 in L used one 65 in and one 51 in sofa. The depth stays at 39 in, because 27 in is too narrow once backrests are on, and the ottoman and lounge chair are fixed sizes.

![Teal velvet L-shaped bench cushions with ivory piping on a white storage bench between an oak bookcase and a gallery wall](https://cushionguide.com/media/l-shaped-cushions/teal-velvet-l-shape-reading-nook-gallery-wall-1600.webp "Solid teal velvet anchors a reading corner surrounded by books, prints and plants.")

## Key facts

- Floor sofa sections are 39 in (100 cm) deep.
- A custom L is built from two sofas resized to your runs.
- A 90 x 65 in L used one 65 in sofa and one 51 in sofa.
- The corner version's long side can go up to about 94 in; the short side is 78 in.
- A 27 in seat depth is too narrow once backrests are added.
- The ottoman is a fixed 39 x 39 in, and the floor lounge chair seat a fixed 43 x 43 in.
- A custom L took about 7 days to make plus 3-5 days delivery.

## Three real L-shaped floor sofas, run by run

| Space (long x short) | Long-side sofa | Short-side sofa | Check |
|---|---|---|---|
| 90 x 65 in | 51 in | 65 in | 51 + 39 = 90 in |
| About 110 x 61 in (280 x 155 cm) | About 71 in (180 cm) | About 61 in (155 cm) | 71 + 39 = 110 in (280 cm) |
| Corner version, up to about 94 x 78 in | Up to about 94 in | 39 in sofa + 39 in ottoman | 39 + 39 = 78 in |

## Turn two walls into two sofa lengths

1. **Measure both walls**: Long run and short run, in inches, at floor level where the sofa will sit.
2. **Give the short wall one whole sofa**: Short-side sofa = short run. In a 90 x 65 in space, that is 65 in.
3. **Subtract 39 in from the long wall**: The short-side sofa's 39 in (100 cm) depth fills the corner, so long-side sofa = long run minus 39 in. 90 - 39 = 51 in.
4. **Leave the depth alone**: Sections stay 39 in deep. At 27 in, the seat is too narrow once the backrests are on.
5. **Ask for a custom link**: A custom L took about 7 days to make, plus 3-5 days of delivery.

## What won't stretch, and the workaround

Angles are just lengths in disguise, and a square L corner is the friendliest angle there is. The hard limits sit elsewhere. The ottoman is a fixed 39 x 39 in, the floor lounge chair's seat is a fixed 43 x 43 in, and the corner version's long side tops out around 94 in.

When a room can't give up 39 in of depth, the workshop's answer has been one custom-length sofa, 65 in in one case, plus the standard ottoman. The [layouts Pattern](https://cushionguide.com/guides/modular-floor-sofa-layouts/) and the [small-apartment floor sofa sketches](https://cushionguide.com/concepts/small-apartment-floor-sofa-layouts/) show more arrangements for a [modular floor sofa](https://cushionguide.com/cushions/modular-floor-sofas/). What are your two wall runs, partner?

> **Tailor's margin:** Custom L-shaped floor sofa math: long-side sofa equals the long wall minus 39 in, because the other sofa's depth fills the corner.

> A 90 x 65 in L-shaped floor sofa is two straight sofas, 65 in and 51 in, because 39 in of depth fills the corner.
>
> — Nate

## Buyer questions

**A common question:** Can you build the floor sofa as an L to my wall-to-wall size, 27 in deep?

**The workshop's answer:** Partly. A 27 in seat depth is too narrow once the backrests are on, so the workshop suggested one custom 65 in sofa plus a standard 39 x 39 in ottoman. The ottoman width and the floor lounge chair's 43 x 43 in seat can't be changed.

**A common question:** Can you make a smaller L-shaped floor sofa that fits in 90 x 65 inches?

**The workshop's answer:** Yes. Each sofa is 39 in deep, so the L is one 65 in sofa and one 51 in sofa, 65 x 90 in overall; that order took about 7 days of production and 3-5 days of delivery.

**A common question:** Can you make an L-shaped sectional at 110¼ x 61 in (280 x 155 cm)?

**The workshop's answer:** Yes. Each section is 39 in (100 cm) deep, so two floor sofas are resized to runs of about 71 in (180 cm) and 61 in (155 cm) and sold through a custom link.

**A common question:** How long can the corner sofa go? I want about 110 in on one side.

**The workshop's answer:** The long side can go up to about 94 in. The other side is 39 + 39 = 78 in, the sofa plus the ottoman.

## Questions buyers ask next

### Can a single floor sofa be made narrower instead of an L?

Yes. Order the standard sofa and write your width in the note, for example 60, 65 or 70 in (150-180 cm). Narrowed sofas have cost the same as the standard size but spent longer in production; ask for the current estimate in writing.

### What bed size do the floor sofa mattresses make?

Each mattress is 39 x 79 in, close to Twin XL, so Twin XL sheets fit. Two side by side make about 79 x 79 in, and adding the ottoman takes it to about 79 x 119 in.

### Which sofas come in standard sizes only?

The linen floor sofa, the fold-flat lounger and the bouclé modular couch. Bouclé modules are sold separately, though, so you can still build your own layout from the standard pieces.

## Related at the atelier

- [Which of your floor sofas can't be made in custom sizes?](https://cushionguide.com/answers/floor-sofas-without-custom-sizes/): Three ready-made models are standard-size only: the linen floor sofa, the fold-flat lounger chair and the bouclé modular floor couch.
- [How big is the L-shaped corner floor sofa?](https://cushionguide.com/answers/l-shaped-corner-floor-sofa-dimensions/): The closed-corner L-shaped floor sofa measures 118 x 79 x 14 in (300 x 200 x 35 cm) overall.
- [What bed size does the floor sofa make, and what sheets fit it?](https://cushionguide.com/answers/floor-sofa-bed-size-sheets/): Each floor sofa mattress is 39 x 79 in (about 100 x 200 cm), close to Twin XL, so Twin XL sheets fit each one.
- [Modular Floor Sofa in Dusty Rose Velvet for a Reading Corner](https://cushionguide.com/readings/dusty-rose-floor-sofa-pothos-shelf-reading-corner/): A modular floor sofa works as a reading corner when it borrows the patio's habits and keeps indoor fabric.
- [Modular Floor Sofa Corner in Light Gray Tufted Modules](https://cushionguide.com/readings/light-gray-tufted-floor-sofa-corner-modules/): A modular floor sofa suits long sitting when every piece stays loose and the modules stay put.
- [Modular Floor Sofa Corner: Two Sets in Rust and Mustard](https://cushionguide.com/readings/rust-mustard-floor-sofas-l-shape-corner-lounge/): A modular floor sofa corner can be made from two standard sets placed at a right angle, with no custom L-shaped cushion needed.
- [Corner floor sofa layouts: L-shapes, U-shapes, open or closed corners, straight runs](https://cushionguide.com/guides/modular-floor-sofa-layouts/)
- [Can you sleep on a floor sofa? Bed size, firmness and sheets](https://cushionguide.com/guides/floor-sofa-bed-size-firmness/)

*± 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-l-shaped-floor-sofa-size/