---
title: "Corner Floor Sofa Dimensions: The L-Shape Is 118 x 79 in"
url: "https://cushionguide.com/answers/l-shaped-corner-floor-sofa-dimensions/"
section: "The Cutting Table"
author: "Nate Kowalski, The Pattern Engineer of Detroit"
author_url: "https://cushionguide.com/masters/nate/"
published: "2026-03-06"
updated: "2026-09-24"
keywords: "corner floor sofa dimensions, l shaped floor sofa size, closed corner floor sofa, open corner floor sofa dimensions, modular floor sofa measurements"
---

# How big is the L-shaped corner floor sofa?

*118 by 79 inches, partner, and about 14 high. The long side confuses people, so here's where the extra 39 inches comes from.*

Also asked as: What are the dimensions of the open corner?; What's the total length of the two connecting pieces?

> **The quick answer:** The closed-corner L-shaped floor sofa measures 118 x 79 x 14 in (300 x 200 x 35 cm) overall. It's built from two sections, each 79 in wide and 39 in deep (200 x 100 cm), so the long side is one section plus the depth of the other. The open-corner version is about 117 x 78 in, and both can be resized to your walls.

![Leopard-print cushions on an L-shaped cream shaker corner banquette with a round oak table and black spindle chairs](https://cushionguide.com/media/l-shaped-cushions/leopard-l-shaped-shaker-kitchen-banquette-cushions-1600.webp "Two leopard cushions meet at the corner of a cream shaker banquette and turn a kitchen corner into a breakfast nook.")

## Key facts

- The closed-corner L is 118 x 79 x 14 in (300 x 200 x 35 cm) overall.
- Each section is 79 in wide and 39 in deep (200 x 100 cm).
- The closed corner has 4 seat cushions of 79 x 39 x 6.5 in (200 x 100 x 17 cm).
- It has 3 L-shaped backrests of 39 x 39 x 15 in (100 x 100 x 39 cm) and 1 straight backrest of 39 x 15 x 15 in (100 x 39 x 39 cm).
- The open corner has 4 seats, 2 L-shaped backrests, 2 straight backrests and 7 iron support pieces.
- The open corner is about 117 x 78 in overall.
- Corner sofa sizes can be customized.

## Closed corner vs open corner, piece by piece

| Piece | Closed corner | Open corner |
|---|---|---|
| Overall | 118 x 79 x 14 in (300 x 200 x 35 cm) | About 117 x 78 in |
| Seat cushions | 4, each 79 x 39 x 6.5 in (200 x 100 x 17 cm) | 4, same size |
| L-shaped backrests | 3, each 39 x 39 x 15 in (100 x 100 x 39 cm) | 2 |
| Straight backrests | 1, at 39 x 15 x 15 in (100 x 39 x 39 cm) | 2, same size |
| Iron support pieces | Confirm with your order | 7 |

## Where 118 inches comes from

Angles are just lengths in disguise, and an L is two rectangles. Each section is 79 in (200 cm) long and 39 in (100 cm) deep. Lay one along the long wall, turn the other into the corner, and the long side reads 79 + 39 = 118 in (300 cm). The short side is the second section's own 79 in.

Four seat cushions over two sections means two per section, which is where the roughly 14 in (35 cm) height comes from. The [open corner](https://cushionguide.com/glossary/#open-corner) trades one L-shaped backrest for a straight one and leaves the corner without a back, a seat you can step into. More arrangements are in the [modular floor sofa layouts](https://cushionguide.com/guides/modular-floor-sofa-layouts/) and the [modular floor sofa atlas](https://cushionguide.com/cushions/modular-floor-sofas/). How long is your longest clear wall?

## Tape it out before you order

- ✓ Mark **118 x 79 in** on the floor, corner included, before anything else.
- ✓ Allow **39 in (100 cm)** of depth off every wall the sofa sits against.
- ✓ Too long for your wall? A custom L is two sofas resized to your runs, e.g. **65 in + 51 in** for a 90 x 65 in space.
- ✓ Don't squeeze the depth: sections stay **39 in** deep, and 27 in is too narrow once the backrests are fitted.
- ✓ Unsure it suits a low seat at all? Read [whether a floor sofa is right for you](https://cushionguide.com/guides/floor-sofa-buying-guide-height-space/).

> **Tailor's margin:** An L-shaped floor sofa's long side is one section plus the depth of the other: 79 in + 39 in = 118 in (300 cm).

> A custom L-shaped floor sofa for a 90 x 65 in corner was built as a 65 in run plus a 51 in run; the 39 in depth of one section closes the gap.
>
> — Nate

## Buyer questions

**A common question:** What are the dimensions of the closed-corner floor sofa and each of its pieces?

**The workshop's answer:** Overall it's 118 x 79 x 14 in (300 x 200 x 35 cm). It has 4 floor seat cushions at 79 x 39 x 6.5 in (200 x 100 x 17 cm), 3 L-shaped backrests at 39 x 39 x 15 in (100 x 100 x 39 cm) and 1 straight backrest at 39¼ x 15¼ x 15¼ in (100 x 39 x 39 cm). A matching ottoman is available too.

**A common question:** How big is the open-corner sofa, and will it fit my living room?

**The workshop's answer:** The open-corner set has 4 floor seat cushions, each 79 x 39 x 6.5 in (200 x 100 x 17 cm), 2 L-shaped backrests, 2 straight backrests at 39 x 15 x 15 in (100 x 39 x 39 cm) and 7 iron support pieces. Overall it's about 117 in long and 78 in wide.

**A common question:** How long is the L end to end, and can it be resized to my wall?

**The workshop's answer:** The standard L is 79 x 118 in (200 x 300 cm). Each section is 78¾ in (200 cm) wide by 39¼ in (100 cm) deep, so two combined make a 118 in (300 cm) long side. If that doesn't fit, the sizes are customized.

## Questions buyers ask next

### Does the corner floor sofa turn into a bed?

Each seat mattress is 39 x 79 in, close to Twin XL, so Twin XL sheets fit. Two laid side by side make about 79 x 79 in; add the ottoman and you reach about 79 x 119 in.

### How do I get a longer straight run than 79 inches?

One piece tops out around 79 in (200 cm), so longer sofas use modules: the 39 in (100 cm) ottoman with backrest for about 118 in, a 16-24 in (40-60 cm) extension section, or two equal sections, such as 2 x 49 in (125 cm).

### Will these covers fit another brand's teddy floor sofa?

Usually, if the sizes match: seats 79 x 39 x 6.5 in (200 x 100 x 17 cm) and L-backrests 39 x 39 x 15 in (100 x 100 x 39 cm). Check each piece's height; another maker's backrests may sit slightly loose.

## Related at the atelier

- [What's the difference between an open-corner and a closed-corner floor sofa?](https://cushionguide.com/answers/open-vs-closed-corner-floor-sofa/): The difference between an open-corner and a closed-corner floor sofa is the backrest at the end of the run.
- [Can the L-shaped floor sofa be made to fit my wall dimensions?](https://cushionguide.com/answers/custom-l-shaped-floor-sofa-size/): 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.
- [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.
- [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: 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.
- [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.
- [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/l-shaped-corner-floor-sofa-dimensions/