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Tip on measuring cushions for new foam fillings

Cushions measuring tips

Replacing sofa cushions

When measuring old cushions for new foam fillings there are a couple of things that should be considered;

For the cushion to have a full, plump, appearance the new foam filling needs to be slightly bigger than the cushion cover. This allows for slight compaction and will reduce the possibility of the cover wrinkling.

We recommend, when replacing foam cushion interiors, you will need to add (10mm) to the cushion cover length and width. We would also suggest adding (10mm) to the depth of the cushion, as well.




For back cushions:

Measure the cushion as above but add (25mm) to the depth of the cushion border. This will, again, give your back cushions a lovely plump appearance.

Replacing old fibre or feather cushions with foam.

If you are replacing fibre or feather cushions with foam interiors it is advisable not to add extra foam to the width or length of the cushion. This will help to prevent your cushions from ending up too big to fit back in their original covers. However you will have to add between (10mm) and (25mm) to the depth of the cushion to fill the cushion cover successfully.

Why do we cover our cushions in Stockinette?

Stockinette is a thin stretchy mesh like material used to cover the cushion foam, to reduce friction between the foam interior and the cushion cover. This allows the foam to more easily retain it’s shape and increases the lifespan of the foam cushion. TWFoam recommends Stockinette, for all shaped cushions that are over 3 inches thick.

Stockinette is elastic so will cause some shrinkage and pull slightly on the edges of the foam, particularly with angular corners. Please allow half an inch (12mm) on the length and width of your items to accommodate this shrinkage.

Gluing foam to foam

  • Purchase General Purpose Glue from TWFoam Converters.
  • Ensure the surfaces are free from dirt or dust.
  • Evenly cover the area on both pieces of the foam in glue.
  • Hold the pieces together for a few seconds to allow the glue to dry.


Gluing Dacron Wadding to foam

  • Purchase Dacron Wadding and General Purpose Glue from TWFoam Converters.
  • Cut the Dacron Wadding to size, allowing a 2” (50mm) overlap.
  • Lay the Dacron Wadding over the foam.
  • Lift a portion of the Dacron Wadding and evenly spay the glue over, both, the wadding and the foam .
  • Hold the pieces together for a few seconds to allow the glue to dry.
  • Continue until all the Dacron Wadding is fixed.
  • Trim excess Dacron Wadding with a scissors.