Choose another shape Click here.
FROM £10.00
Custom T-Shape Fibre Seat Cushions for Sofas, Armchairs & Built-In Corners
T-shaped cushions can be awkward — but with the right measurements, they don’t have to be. Our T-Shape Fibre Seat Cushions are made to fit your cover exactly, restoring structure and softness without the sag. Whether you’re replacing tired foam or want a comfier alternative to feather, fibre’s the way to go for a plump, supportive, and low-maintenance seat.
We base every T-shape cushion on your empty cover, not your old insert. Here’s how to get it right:
1️⃣ (A) – Measure from back to front 2️⃣ (B) – Measure from side to side at the widest 3️⃣ (C) – Height of the cushion’s side or border4️⃣ (D) – From the front edge to the very back of the lug 5️⃣ (E) – Measure the back edge of the cushion
👉 All measurements should be taken seam to seam, flat and unstuffed. Don’t include piping or frills — just the stitched edges.
T-shaped cushions are notorious for poor fit when guessed. Measuring correctly ensures your new T-Shape Fibre Seat Cushion fits snugly into every corner, especially around the arms. We also use the border thickness to determine how much hollowfibre to fill it with — so you get that plump, supportive finish without it puffing up like a soufflé or collapsing like a soggy sandwich.
Our custom T-Shape Fibre Seat Cushions are commonly used for:
Sofa and armchair seat bases (especially DFS, SCS, IKEA, and M&S models)
L-shaped corner sofas with arm-overhangs
Built-in seating with extended arm rests
Traditional three-cushion layouts where arms curve into the base
T-shape cushions are a pain to get right with off-the-shelf foam, but a fibre-filled insert made to your exact measurements will sit properly and stay comfy for longer.
T-shape seats often need extra structure to stay looking smart. Feather cushions can sag in the arm sections if not plumped daily. Fibre is better at holding its shape, easier to care for, and still offers a nice soft feel — without needing a daily beating.
👉 Read our full guide on Feather vs Fibre Cushions
✅ Plump Daily – Keeps the arms and body section looking even✅ Shake It Out Weekly – Prevents the fill from clumping✅ Rotate If Possible – Especially helpful for wear on the arms✅ Keep Dry – Avoid damp; fibre doesn’t like it✅ Spot Clean Only – No soaking or machine washing
💡 Use a washable cover to protect the shape and keep cleaning easy — especially if the cushion is in daily use.
We get it — T-shapes are a faff. If you’d rather not take the risk, just send us the empty cushion cover, or even a paper template or sketch. We offer a free fitting service to guarantee a spot-on result.
No guesswork. No stress. Just a properly made cushion that fits first time.
Visit https://www.thefoamshop.co.uk/
© 2025 Foam 4 U | Sitemap | Privacy Policy | Web Design by Dexterous Designs Ltd