---
title: "Replacement Sofa Back Cushion for a Modular Floor Sofa"
url: "https://cushionguide.com/answers/replacement-backrest-modular-floor-sofa/"
section: "The Cutting Table"
author: "Harlan Pruitt, The Elder of High Point"
author_url: "https://cushionguide.com/masters/harlan/"
published: "2026-02-25"
updated: "2026-02-25"
keywords: "replacement sofa back cushion, modular floor sofa backrest, L-shaped backrest replacement, floor sofa extra backrest, floor sofa armrest pair"
---

# Can I buy a replacement or extra backrest for my modular floor sofa?

*Dogs, contractors and moving day have each put a backrest out of service. The sofa doesn't have to go with it, my friend.*

Also asked as: Just the 2 back corner pieces?; Can I buy two extra L-shaped cushions?

> **The quick answer:** Yes: straight and L-shaped backrests for a modular floor sofa are sold one at a time, with filling, matched to your original color through a private purchase link. An L-shaped piece can be swapped for a straight (I-shaped) one at the same price, and extra metal bars can join the order. The two arm pieces are corner backrests, sold only as a pair.

![Three charcoal seat cushions and a charcoal and cream hexagon jacquard back cushion on a low oak platform sofa](https://cushionguide.com/media/bench-cushions/charcoal-seats-hexagon-jacquard-backrest-oak-sofa-1600.webp "Plain charcoal seats take the daily wear; the hexagon jacquard backrest carries the pattern at eye level.")

## Key facts

- Every piece of the modular floor sofa can be bought separately.
- Single backrests come with filling, through a private purchase link.
- A replacement backrest can be matched to the color of your original order.
- An L-shaped backrest can be exchanged for a straight (I-shaped) one at the same price.
- Extra metal bars and support pieces can be added to the order.
- The two arm pieces are really corner backrests and are sold as a pair; a single armrest isn't sold.
- Construction details aren't shared for DIY builds.

## Which floor sofa pieces you can buy on their own

| Piece | Can you buy it? | Notes |
|---|---|---|
| Straight (I-shaped) backrest | [yes] Singly | Filled, in any color, matched to your order |
| L-shaped corner backrest | [yes] Singly | Filled; 39 x 39 x 15 in (100 x 100 x 39 cm) on the single teddy sofa |
| Swap an L for a straight | [yes] | Same price |
| Arm pieces | Only as a pair | They are corner backrests, sold two together |
| Metal bars and support pieces | [yes] | Added to the same order |
| Build plans for DIY | [no] | Construction details aren't shared |

## Two navy corners after the contractors left

A buyer in the US wrote after a contractor damaged the two L-shaped backrests on their floor sofa. The workshop made a dedicated purchase link for two new L-shaped backrests in navy, so only the damaged pieces had to be replaced.

## A torn backrest is not a lost sofa

A modular sofa is a family of parts, and families lose a member now and then. When one piece gives out, you replace that one piece. Buy the cushion once, cry once, and when the dog has other plans, buy the one backrest again.

Give the color from your first order so the new piece sits with its kin. For the parts underneath, see [floor sofa support bars](https://cushionguide.com/guides/floor-sofa-support-bars-assembly/); to reshape the set, read [modular floor sofa layouts](https://cushionguide.com/guides/modular-floor-sofa-layouts/). All the pieces live under [modular floor sofas](https://cushionguide.com/cushions/modular-floor-sofas/) and [backrest cushions](https://cushionguide.com/cushions/backrest-cushions/).

Which piece took the beating in your house?

> **Tailor's margin:** The arm pieces on a modular floor sofa are really corner backrests, so they're sold as a pair; one armrest on its own isn't made.

> A modular floor sofa backrest the dog ripped can be replaced alone, filled and in the original color: every piece is sold separately.
>
> — Harlan

## Buyer questions

**A common question:** Can I buy extra straight or L-shaped backrests separately?

**The workshop's answer:** Yes, every piece is sold separately, one backrest or a pair. When a contractor damaged a buyer's originals, the workshop made a dedicated link for two L-shaped backrests in navy.

**A common question:** Can I buy a straight or corner backrest on its own, with extra bars?

**The workshop's answer:** Yes. Straight and corner backrests are sold separately through their own listings, in colors such as dark brown, and extra metal bars can be added to the same order.

**A common question:** Do you sell extra backrest pillows or the armrests separately?

**The workshop's answer:** Yes. Straight and L-shaped corner backrests are sold singly, and the armrests as a pair. An L-shaped pillow can be swapped for a straight (I-shaped) one at the same price.

**A common question:** My dog ripped one backrest. Can I buy just that piece?

**The workshop's answer:** Yes. Individual backrests are sold with filling, straight or L-shaped, in any color such as brick or off-white, through a private purchase link. A single armrest isn't sold.

**A common question:** Can I buy the arm pieces and build the rest myself?

**The workshop's answer:** The two arm pieces, which are really corner backrests, are sold together, and extra support pieces can be sent. How the arms are made isn't shared for DIY builds.

## Questions buyers ask next

### What pieces make up the single teddy floor sofa?

The single modular teddy sofa measures 79 x 39 x 14 in (200 x 100 x 35 cm): two 6 3/4 in (17 cm) seat cushions, two L-shaped backrests of 39 x 39 x 15 in (100 x 100 x 39 cm) and four metal bars.

### Can I add a matching back cushion to a bench cushion I already own?

Yes. Backrests are made to your size in the same fabric as the seat, either firm foam like the seat or a soft filled pillow. Add one later by quoting the fabric code from your original order.

### Should a back cushion be foam or soft like a pillow?

Either works. Foam backs hold their shape, suit outdoor use and stay put when wedge-shaped; pillow backs are softer and more relaxed. A firm foam seat can be paired with a softer pillow back.

## Related at the atelier

- [Can I buy just the L-shaped corner backrests without the sofa?](https://cushionguide.com/answers/l-shaped-corner-backrest-without-sofa/): Yes, L-shaped backrests are sold on their own: choose the L-shaped backrest option on the listing or ask for a custom link.
- [Can you make a wall-mounted headboard cushion or backrest?](https://cushionguide.com/answers/wall-mounted-headboard-style-backrest/): Usually not with a rigid board inside: standard backrests are soft, so they can't be screwed to a wall or hung on a French cleat.
- [Can you make wedge-shaped back cushions?](https://cushionguide.com/answers/custom-wedge-back-cushion-measurements/): Yes, wedge back cushions that are thicker at the bottom and thinner at the top are made to order often.
- [Reading Wedge Backrest in Charcoal for a Bed Shared with a Dog](https://cushionguide.com/readings/charcoal-reading-wedge-dark-green-bedroom-whippet/): A firm triangular reading wedge gives upright back support in bed without replacing your pillows, and it lasts when the finishing is right: piping that follows the slope, side panels that stand flat…
- [Bench Seat and Back Cushion in Jacquard and Terracotta Bouclé](https://cushionguide.com/readings/geometric-backrest-terracotta-boucle-seat-closeup/): For a bench seat and back cushion in two fabrics, put the forgiving cloth on the seat and the pattern on the back.
- [How tall should a back cushion be? Sizing backrests to your seat](https://cushionguide.com/guides/back-cushion-height-sizing/): A standard back cushion is 16 in (40 cm) tall and 4 in (10 cm) thick, made the same length as the seat, with its height measured from the top of the seat cushion.
- [Replacement sofa and couch cushions: measuring, foam and covers](https://cushionguide.com/guides/replacement-sofa-seat-cushions/)
- [Replacement cushions for a nursery glider, piece by piece](https://cushionguide.com/guides/glider-rocker-replacement-cushions/)

*Sit well. — Harlan*

---

Written by Harlan Pruitt (https://cushionguide.com/masters/harlan/) 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/replacement-backrest-modular-floor-sofa/