White Upholstery Foam Cut to Size, High Density Firm Seat Cushion Foam
White Upholstery Foam Cut to Size, High Density Firm Seat Cushion Foam
Upholstery foam cut to size for sofa cushion replacement, dining chair and bench seat pads, window seats, headboards and caravan or campervan seating. Firm, high density white polyurethane foam in 30 ready-cut sizes from 12 × 12 in to 30 × 39 in, and six thicknesses from 1 to 6 inches.
- Firm high density
- 30 ready-cut sizes
- 1 to 6 inches thick
- CMHR foam
- Easy to trim
Why choose this white upholstery foam
- Firm, high density support. A dense seating grade that gives firm, even support for everyday sitting and holds its shape.
- Ready cut. Square, clean edges that slip straight into your cushion covers.
- Six thicknesses. From 1 inch padding for chairs and headboards up to 6 inch deep sofa and day-bed seats.
- UK fire safety. Combustion modified (CMHR) foam that meets the Furniture and Furnishings (Fire) (Safety) Regulations 1988 (as amended).
- Easy to trim at home. It cuts neatly with an electric carving knife or a long serrated bread knife.
Which thickness do I need?
As a rule, match the depth of your cushion cover's side panel (gusset).
| Thickness | Typical uses |
|---|---|
| 1 in (2.5 cm) | Thin padding for chair backs, headboards, piano and dressing-table stools, and craft projects |
| 2 in (5 cm) | Dining chair seat pads, kitchen chairs, bar stools and office chair re-padding |
| 3 in (7.5 cm) | Bench seats, window seats, storage ottomans, garden bench cushions and pet beds |
| 4 in (10 cm) | Sofa and armchair seat cushions, caravan seating and campervan seat cushions |
| 5 in (12.5 cm) | Deeper sofa and armchair seats, boat and cabin seating, firmer caravan beds |
| 6 in (15 cm) | Day beds, floor seating, extra-deep sofa seats and rock-and-roll bed cushions |
Size guide
Sizes are selected in inches. Centimetres are shown for reference (rounded). Cutting tolerance is up to ±1 cm, which is normal for cut foam.
| Size (inches) | Approx. size (cm) |
|---|---|
| 12 × 12 in | 30 × 30 cm |
| 14 × 18 in | 36 × 46 cm |
| 15 × 15 in | 38 × 38 cm |
| 16 × 16 in | 41 × 41 cm |
| 16 × 24 in | 41 × 61 cm |
| 17 × 17 in | 43 × 43 cm |
| 18 × 18 in | 46 × 46 cm |
| 20 × 20 in | 51 × 51 cm |
| 20 × 22 in | 51 × 56 cm |
| 20 × 24 in | 51 × 61 cm |
| 20 × 26 in | 51 × 66 cm |
| 20 × 28 in | 51 × 71 cm |
| 24 × 24 in | 61 × 61 cm |
| 24 × 30 in | 61 × 76 cm |
| 24 × 32 in | 61 × 81 cm |
| 25 × 25 in | 64 × 64 cm |
| 26 × 26 in | 66 × 66 cm |
| 26 × 28 in | 66 × 71 cm |
| 26 × 30 in | 66 × 76 cm |
| 26 × 34 in | 66 × 86 cm |
| 28 × 28 in | 71 × 71 cm |
| 28 × 30 in | 71 × 76 cm |
| 28 × 32 in | 71 × 81 cm |
| 28 × 36 in | 71 × 91 cm |
| 30 × 30 in | 76 × 76 cm |
| 30 × 32 in | 76 × 81 cm |
| 30 × 34 in | 76 × 86 cm |
| 30 × 36 in | 76 × 91 cm |
| 30 × 39 in | 76 × 99 cm |
| 31 × 31 in | 79 × 79 cm |
Measuring tips
- Measure the cover, not the old foam. Old foam shrinks and flattens with age.
- Measure seam to seam for length, width and depth.
- For a full, plump look, choose foam about 1 cm (½ in) bigger than the cover.
Care
- Spot clean with a damp cloth. Do not machine wash, tumble dry or dry clean.
- If your foam arrives compressed or rolled, allow 24 to 48 hours for it to recover to its full size and thickness.
- A light new-foam smell is normal and fades quickly in a well-ventilated room.
- White foam can slowly turn slightly yellow with exposure to light and air. This is natural and does not affect comfort or performance.
- Keep away from open flames, heaters and direct heat sources.
Questions people ask
Is this foam firm or soft?
It is a firm, high density seating foam that suits sofas, chairs and bench seats.
Can I cut it myself?
Yes. Mark your line with a marker and a straight edge, then cut with an electric carving knife for the cleanest edge. A long serrated bread knife also works.
Can I use it outdoors?
It is made for indoor furniture and cushions. Outdoors, use it inside a water-resistant cover.