Frequently bought together
Same fabric, made together, shipped together.
A custom window seat cushion turns a window ledge into the best reading spot in the house. We cut each cushion to your exact shape: rectangular window seats, trapezoid bay window cushions with angled ends, L-shaped nooks and curved alcoves. Sunbrella fabric is solution-dyed, so it will not fade in the strong sun a window seat gets every day.
How to measure
- Measure the back edge (against the wall) and the front edge separately: on a bay window these are different.
- Measure the depth from wall to front edge at the center.
- For angled ends, measure each side edge, or trace the seat on paper and send a photo with your quote.
- 2" to 4" foam is typical. Add 1" Dacron wrap for a softer, rounded look.
Fabric
Pick from 41 popular Sunbrella colors above. Want a different color? We stock over 160 Sunbrella fabrics: browse the full range and name it in your quote notes.
Foam and fill options
All foam is made in the USA and covered by a 3-year warranty.
- High Density foam: medium feel for everyday seating. 2.8 lb/ft³ density, 35 lb ILD, about 16-year life.
- Luxury foam: firm, best for dining seats 1″ to 3″ thick. 2.8 lb/ft³, 50 lb ILD, about 16-year life.
- Dry Fast foam: open-cell foam that drains water, best for outdoor and marine use. 1.8 lb/ft³, 60 lb ILD, 5–8 year life.
- Super Soft foam: for back cushions only. 1.2 lb/ft³, 12 lb ILD.
- Dacron wrap: a 1″ polyester fiber layer around the foam for a fuller, rounded look. Do not reduce your measurements for it.
- Fiber fill: soft polyester fill for loose back cushions.
How to order
- Choose your fabric above, then click Start Your Custom Order.
- Enter your measurements in inches (rounded up to the nearest 1/4″), foam, thickness, piping and ties in the notes.
- We confirm the price and specs by email before we cut anything.
Foam up to 6″ is one solid piece; 6″ to 8″ is two pieces bonded at no extra charge. For thicker or layered cushions, contact us. Tolerance is ±1″ on length and width and ±1/2″ on thickness. Ships in about 2 weeks for in-stock fabrics, 4 weeks otherwise, with free shipping.
Questions
Can you make a trapezoid bay window cushion?
Yes. Give us the back length, front length and depth, and we cut the angles to match.
Which fabric is best for a sunny window seat?
Sunbrella. It is solution-dyed acrylic, so the color goes all the way through the fiber and resists fading.
Do window seat cushions come with zippers?
Yes, every cover has a zipper so the foam can be removed and the cover cleaned.
Seat cushions
Measure the seat side to side and front to back, between arms if there are any. Round up to the nearest ¼″. For a tapered seat, measure the front and back widths.
Back cushions
Measure from the seat to where you want the cushion to stop. Width is usually the same as the seat.
Chaise and Adirondack
Measure the full length laid flat, then the back section from the top to the hinge point where the back rest bends.
Covers only
Measure your foam, not the old cover. We cut the cover to fit snugly.
Pillows
Order the cover the size of your insert. Our micro-fibre inserts are sized to fill the cover.
Curtains
Panel width: add the panels up to 1½–2× the opening. Length: from the rod (or top of the tab) to where the hem should land.
Odd shape? Tick “unique shape” and send a paper template after you order. Questions: operation@fabricakraft.com.
Sunbrella In stock
Solution-dyed acrylic for indoors and out: fade-, mildew- and stain-resistant. Also marine-grade Horizon vinyl (+50%) and waterproof fabrics (+25%, no piping) for outdoor pieces.
Warwick In stock
Australian design house. Upholstery, velvets, faux leathers, drapery and sheers for indoor use.
| Foam | Feel | Best for | Lasts |
|---|---|---|---|
| HD36-R | Medium | Everyday benches and window seats | About 7 yrs |
| Lux-R | Firm | Thin 1–3″ dining benches | About 7 yrs |
| Dryfast | Firm, open-cell | Outdoors: drains and dries fast | 5–8 yrs |
| Poly | Medium | Occasional or guest seating | 1–2 yrs |
Back cushions: Super Soft for a plush lean-back or High density (HD36-R) for a firmer back indoors; Dryfast outdoors. Super Soft is not used for seats.
Cover only: every product can be ordered as just the cover, cut to your size.
Pillows: soft polyester micro-fibre insert, or cover only.
Dacron wrap: a polyester layer around the foam that rounds the edges and fills the cover. Single or double. All foam is made in the USA.
Can I build something else in this fabric?
Yes. On any fabric page, pick what you are making: cushions, pillows or curtains.
Do I save if I order more?
Yes. The more you order, the less each piece costs: 2+, 4+, 8+ and 16+ unlock lower prices, shown above the Add to cart button.
Can I order just the cover?
Yes. Choose “Cover only” and measure your foam.
Can I leave it outside?
Choose Outdoor: Sunbrella fabric with Dryfast foam, which drains and dries fast.
Is the price final?
Yes for standard shapes: all-inclusive with free shipping. Unique shapes are confirmed once we have your template.
Questions before ordering?
Email operation@fabricakraft.com or contact us.
Free shipping. Every cushion is made to order in 2–3 weeks; your cover and foam may arrive in separate boxes a few days apart.
Custom products can't be returned unless there is a defect or a manufacturing error. We remake any cushion we get wrong. See our Return Policy or contact us with questions before you order.
