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Garden chair cushion with backrest

Updated: 22 October 2026

The seat is tolerable and the back is not. The photo looks like one thick cushion wrapped over the chair, and the parcel is often a square pad plus a loose back that does not know where to sit. A garden chair cushion with backrest is a different object from a seat pad, and a 120 cm high-back is a different object again from a 45 cm square. The seat-only pairs stay on the [garden chair cushions comparison](/hub/garden-furniture/garden-chair-cushions). Products Compared used the amazon.co.uk extracts and the review notes on file on 21 October 2026. We did not fit the pads to a rig. A qualifying purchase through our links can earn a commission at no extra cost to you.

The seat is tolerable and the back is not. The photo looks like one thick cushion wrapped over the chair, and the parcel is often a square pad plus a loose back that does not know where to sit.

Our top picks

EDIMENS EDIMENS high-back cushion

Best overall

EDIMENS EDIMENS high-back cushion
7.0/10about £24.89
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PrimePatio PrimePatio high-back cushion

Rank 2

PrimePatio PrimePatio high-back cushion
6.3/10about £32.99
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PrimePatio PrimePatio green backrest cushion

Rank 3

PrimePatio PrimePatio green backrest cushion
6.8/10about £26.39
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On this page
  1. 1.Low-back chairs and the two-piece parcel
  2. 2.A 120 cm pad is a high back
  3. 3.When the size lines disagree
  4. 4.Comfort versus bulk

Low-back chairs and the two-piece parcel

A low garden dining chair has a short back, often in the same width as the seat. The listings aimed at that shape are about 45 or 50 cm, not 120 cm. The green PrimePatio cushion, model 26wbr1047-ChairCushion, is £26.39 at 45 × 45 cm. The bullet states a 7 cm foam seat, shredded foam in the back, fastening ties, and a zip. It scores 3.8 from 46 reviews, and it asks you to allow 48–72 hours. The repeated complaint is that the seat and the back are separate pieces. Several found the back bulky or lumpy and removed stuffing. The weather line says water-resistant and store indoors in prolonged heavy rain. Expect two pieces unless the listing says the parts are joined. How to measure the frame is on the garden chair cushions buying guide. The navy cushion at £34.99 is the 50 cm version, with a 7 cm profile, stitched ties, and spot clean only. It scores 3.9 from 39 reviews. Owners say it is not one piece, that a zip would not undo, and that nothing holds the back on the chair. Ties on the seat do not automatically tie the back.

A 120 cm pad is a high back

Add seat depth to back height. A 50 cm seat and a 70 cm back is 120 cm. That is why the black PrimePatio high-back, model 26wbr1052-ChairCushion, at 120 × 50 cm and £32.99, is the length class for a tall rattan dining chair, and a 45 × 45 cm pad is not. The bullet says a foam seat, a shredded-foam back, and fastening ties. It does not state a centimetre thickness. Care is spot clean only. It scores 3.9 from 37 reviews. The tape itself is on how to fit garden chair cushions. Reviewers say the seat and the back are two pieces, that the fill can be lumpy, and that creases lasted. Some colour comments are about other colourways, so do not treat every sentence as a black pad. If your measured length is far from 120 cm, this listing will bunch or stop short. You are buying length and ties, not a quoted slab.
EDIMENS EDIMENS high-back cushion

Testsieger

EDIMENS EDIMENS high-back cushion
7.0/10about £24.89
View offer

When the size lines disagree

The grey EDIMENS cushion, model back cushion02, is £24.89 and prints three sizes: 35 × 45 × 57 cm, 40 × 120 × 10 cm, and 120 × 45 cm. They cannot all be the cushion in the bag. It states ties and a rear elastic strap. Outdoor use is stated. Waterproof is not. It scores 4.3 from 108 reviews, and many opening reviews are desk chairs rather than patio dining. A strap broke on the first day in one review. The title says low back pain relief. That is listing language, not a clinical result. The widesmile set at £38.99 prints 55 × 55 cm and also 55 inches. Until the seller confirms the unit, this is not a sized choice. Ties are not stated. Two reviews average 3.0. Skip the blue PrimePatio backrest at £28.34 as a rated choice. It shares model 26wbr1047 with the green cushion and has 4.0 from one review, with no review text.

Comfort versus bulk

Shredded foam in a back is soft when it is even and lumpy when it shifts. On the green cushion, owners removed stuffing because the back was bulky. On the high-back, lumpy fill sits next to praise for support once the pad had shaped. A rigid low back will feel that bulk as a bulge. Seven centimetres, where it is stated, is the seat, not a promise that the back is 7 cm as well. If you pull filling out, you are altering the pad and you may harm a return. Let the 48–72 hours pass, tie the back if a tie exists, and sit once. A stuck zip is not an invitation to open the pad with scissors. Indoor use raises the 1988 fire-label question if the cushion is suitable for a dwelling. Look for the permanent label.

Common questions

Is a backrest cushion one piece?
Often it is not. Reviews of the green, navy, and 120 cm PrimePatio cushions say the seat and the back are separate, even when the photo looks joined. The listings do not say the parts are hinged. Assume two pieces until the bullet says otherwise, and check that the back has its own tie.
What length do I need for a high-back rattan chair?
Add seat depth to back height. A 50 cm seat plus a 70 cm back is 120 cm, which is the size line on the black PrimePatio cushion, 120 × 50 cm. A 45 × 45 cm pad covers a low back in this set. It does not cover a tall rail. A sofa back of 120 × 40 cm from another shop is a different width and a different tie.
Why is the back lumpy?
The backs in these PrimePatio bullets are shredded foam, and reviews call that fill bulky, hard, or lumpy. Shredded fill moves. A slab does not, and these backs are not described as slabs. Some green-cushion owners removed stuffing. That is an alteration, and it can affect a return if you decide the pad is faulty.
How do I stop the back falling off?
Use the ties the listing states, and check there is a tie for the back, not only for the seat. Navy reviews say nothing held the back to the chair. The EDIMENS bullet adds a rear elastic strap, on a cushion whose size lines disagree. A seat tie alone will not pin a loose back to a narrow rail.
Is 7 cm of back comfortable or just bulky?
Where 7 cm is stated, it is the seat profile, on the green and navy bullets. The back is described as shredded foam without its own centimetre thickness. On a rigid low back that bulk is what reviewers called too much. On a tall chair, other reviewers liked the support once creases eased. The same filling is not one feeling on every frame.
Which listing has almost no reviews?
The blue PrimePatio backrest at £28.34 has 4.0 from one review and no review text in the extract. It shares model number 26wbr1047 with the green cushion, which has 46 reviews and the two-piece comments. Use the green record if you want owners’ words. Do not treat the single blue rating as proof of fit.

Related pages

Waterproof or water-resistant garden cushions

Best garden chair cushions

Garden chair cushions

Garden chair cushions buying guide: size, ties, foam

How to fit garden chair cushions and store them dry

Sources

Public UK sources used for this comparison, last checked on 22 October 2026. Listing prices, stars and review counts are the amazon.co.uk lines saved for this set on 21 October 2026. There is no laboratory test.

  1. Furniture and Furnishings (Fire) (Safety) Regulations 1988 (retrieved 22 October 2026)
  2. Furniture and Furnishings (Fire) (Safety) (Amendment) Regulations 2025 (retrieved 22 October 2026)
  3. GOV.UK, fire safety amendment regulations 2025 (retrieved 22 October 2026)
  4. Consumer Rights Act 2015, section 22 (retrieved 22 October 2026)
  5. General Product Safety Regulations 2005 (retrieved 22 October 2026)
  6. Trading Standards furniture and furnishings guide (retrieved 22 October 2026)
  7. amazon.co.uk Garden Chair Cushions best sellers (retrieved 22 October 2026)
  8. OPSS survey in the domestic upholstery fire consultation (retrieved 22 October 2026)