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T shape feather or fibre seat cushion interiors made to measure for sofa and chair covers, with soft plump filling options.

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European 302 Duck Feather

70/30 Feather & Down

85/15 Feather & Down

100% Hollow Fiber Back Cushions

100% Hollow Fiber Seat Cushions

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Replacement T Shape Feather or Fibre Seat Cushions

Made to Measure T Shape Cushion Interiors for Sofa & Chair Covers

Refresh your sofa, chair, corner unit or loose-cover furniture with made to measure T shape feather or fibre seat cushion interiors, designed to give tired covers a fuller, softer and more relaxed look.

This product is for customers who already have T shape seat cushion covers and need new interiors made to fit. Simply enter your cushion cover sizes into the calculator boxes provided, choose your preferred filling type, and we will calculate the correct amount of feather or fibre filling required for your cushion.

A T shape seat cushion is commonly used where the seat cushion needs to fit around sofa arms, chair arms, returns or shaped frame sections. Because of the cut-out shape, the filling needs to be calculated carefully so the cushion fills the cover properly without looking flat, twisted, bunched in the corners or overfilled.

Unlike foam interiors, feather and fibre cushions are designed to sit with a softer, plumper loft. They create a fuller-looking cushion with a more relaxed finish, making them ideal for traditional sofas, armchairs, loose-cover furniture and customers who prefer a softer sit rather than the firmer, more structured feel of foam.

Choose from Feather & Fibre Filling Options

This T shape seat cushion range includes feather, feather/down and hollow fibre filling choices, giving you options for comfort, look, support and budget.

European 302 Duck Feather

A quality feather filling option with a traditional soft feel and good natural loft. Ideal for customers who want a relaxed, plump T shape seat cushion with a classic feather finish.

85/15 Feather & Down

A premium blend containing 85% feather and 15% down, giving a softer, more luxurious cushion feel. A good choice where comfort and a fuller appearance are the main priorities.

70/30 Feather & Down

A softer, more luxurious blend containing 70% feather and 30% down. This option provides a fuller, more indulgent feel with a relaxed, premium finish.

100% Hollow Fibre Seat Cushions

A synthetic fibre option designed for customers who prefer a feather-free cushion interior. Hollow fibre provides a soft, plump feel and is suitable for T shape seat cushions where a lighter, fibre-filled finish is required.

100% Hollow Fibre Back Cushions

Although this product is aimed at T shape seat cushions, hollow fibre back cushion filling is also available within the wider feather and fibre range for customers matching seat and back cushion interiors.

How to Measure for the Best Fit

For the most accurate result, measure your empty cushion cover, not the old cushion interior.

Lay the cover flat and measure seam to seam. For a T shape seat cushion, you will usually need to measure the overall width, overall depth, the width and depth of each cut-out section, plus the border width of the cover.

Do not pull the cover tight, and do not measure the old feather, fibre or foam insert, as old interiors can become misshapen, compressed or stretched over time.

Enter the cushion cover measurements into the calculator boxes provided. We will then use those cover sizes to calculate the correct amount of filling needed to create the right finished cushion loft and T shaped profile.

Important: Swapping from Foam to Feather or Fibre

If you are replacing an old foam T shape seat cushion interior with feather or fibre, please contact us before ordering.

Foam and feather/fibre cushions behave very differently. Foam is cut to a fixed size and gives a firmer, more structured shape. Feather and fibre fillings need room to loft, move and settle inside the cover.

With T shape seat cushions, sizing is especially important because the filling needs to spread into the main seat area and around the cut-out sections of the cover. In some cases, the correct sizing may need adjusting depending on the cover style, border width, fabric type, cut-out shape and the level of fullness you want.

A quick conversation before ordering can help avoid a cushion that feels too full, too flat, bunched in the shaped sections or simply wrong for the cover. Measure twice, order once — still the best rule in the upholstery book.

How We Estimate the Correct Filling Loft

Feather and fibre cushion interiors are usually made to look fuller than foam equivalents. Rather than simply copying the thickness of an old foam pad, we estimate the required loft based on the cushion cover size, border depth and T shape layout.

As a guide, a cushion cover with a 7.5cm border may require a finished cushion loft of around 15cm to achieve the correct plump appearance. This is because feather and fibre fillings compress, settle and spread differently from foam.

That is why we ask customers to enter the actual cushion cover sizes into the calculator. We then internally calculate the correct level of filling needed to suit the cover, rather than expecting customers to work out the filling volume themselves.

Daily Maintenance Is Essential

Feather and fibre cushions need regular care. They are not fit-and-forget products like firmer foam interiors.

To keep them looking and feeling their best, you should plump, shake and turn them daily. This helps redistribute the filling, maintain support, restore shape and prevent the cushion from becoming flat, lumpy or uneven.

With T shape seat cushions, daily dressing also helps keep the filling spread properly into the shaped cut-out sections rather than settling only in the main body of the cushion.

This is completely normal for feather and fibre cushions. If you want a very structured cushion with minimal maintenance, foam may be the better option. If you prefer a softer, fuller, more relaxed cushion and are happy to dress it regularly, feather or fibre is a lovely choice.

Is Feather or Fibre Right for Your T Shape Seat Cushion?

Choose feather or feather/down if you want:

A soft, relaxed cushion feel
A fuller, more traditional cushion appearance
A cushion that can be plumped and shaped
A less rigid finish than foam
A luxury sofa or chair cushion look

Choose hollow fibre if you want:

A feather-free alternative
A lighter synthetic filling
A soft, plump cushion feel
A practical option for everyday seating

For firmer support, sharper edges or a more structured sit, you may be better suited to foam replacement cushion interiors instead.

Where T Shape Seat Cushions Are Commonly Used

Replacement T shape feather or fibre seat cushion interiors are ideal for:

Armchair seat cushions
Sofa seat cushions with arm cut-outs
Loose-cover furniture
Traditional chairs
Shaped chair seats
Corner seating sections
Furniture restoration projects
Soft furnishing projects

Need Help Before Ordering?

If you are unsure which filling to choose, or you are changing from foam to feather or fibre, please contact us before placing your order. We can advise on sizing, filling choice and the best option for your cushion covers.

Feather and fibre T shape seat cushions can transform the look and feel of a sofa or chair, but the right result depends on the correct measurements, the right filling and realistic expectations about daily plumping and maintenance.