Custom cushions
Deep Seat Cushions
Custom deep seat outdoor cushions made to your exact patio furniture dimensions — square, rectangular, or trapezoid shapes in weather-resistant fabric and high-density foam. Choose your size, thickness, and finish. Every cushion ships with a removable YKK zipper cover and free shipping.
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Finding the right outdoor cushions for non-standard furniture is frustrating. Most stores only sell fixed sizes — leaving gaps, overhangs, or cushions that slide off. At USCUSHION, every cushion is cut to your exact measurements: width, depth, and thickness you specify.
Choose from 50+ performance fabrics including Sunbrella, marine vinyl, and pet-friendly options — all tested for UV resistance, fade protection, and easy cleaning. Whether you need patio seat cushions, chaise lounge pads, or deep-seat replacements, we make it to fit.
Ships in 5–7 business days. Free shipping on all orders. Backed by a 3-year warranty.
Measure the seat area: width (side to side), depth (front to back), and your preferred thickness. Round to the nearest 0.5 inch. Our product pages walk you through each measurement step.
Sunbrella and solution-dyed acrylic fabrics are the gold standard for outdoor use. They resist UV fading, mold, and moisture. Marine vinyl is ideal for boat and poolside settings.
Most orders ship within 5–7 business days. Rush options are available at checkout for select fabrics.
Yes. All USCUSHION products are backed by a 3-year warranty covering fabric and foam defects. We also offer 14-day returns on standard orders.
About this collection
Custom Deep Seat Outdoor Cushions for Every Patio Frame
Deep seat outdoor furniture — sectionals, club chairs, loveseats, and wide patio sofas — needs cushions that match the actual seat depth of the frame. Seat depths on deep seating furniture typically run 20 to 24 inches. A depth of 20 to 22 inches supports upright sitting for conversation and dining, while 23 to 24 inches is better for leaning back and lounging. Standard off-the-shelf cushions rarely hit those dimensions exactly, which is why a custom outdoor seat cushion cut to your frame is the more reliable option.
This collection covers the two most common deep seat shapes — square and trapezoid — plus replacement covers for frames where the foam is still good. All options use outdoor cushions, patio cushions, and outdoor seat cushion fabric grades rated for full sun, rain, and year-round patio use.
Browse Deep Seat Cushion Options
- Square Outdoor Cushions — custom square patio cushions cut to your exact frame dimensions, for sectionals, club chairs, and deep-seat sofas with square or rectangular seat pans.
- Trapezoid Outdoor Seat Cushions — cut to your exact angle and width for angled patio bench cushions, corner sectional pieces, and curved outdoor frames that standard square cushions cannot fit.
- Outdoor Cushion Covers — replacement outdoor cushion covers in a custom size, for frames where the foam is intact but the cover has faded, torn, or worn through.
- Patio Furniture Cushion Covers — patio cushion replacement covers sized to your existing cushion dimensions, available in the full outdoor fabric range including performance canvas and solution-dyed polyester.
Fabric Options for Deep Seat Outdoor Cushions
Performance fabric is the standard choice for deep seat patio cushions — it is built specifically for outdoor use and resists fading, tearing, weather, and stains better than standard indoor fabric. Solution-dyed polyester and performance canvas are the two most practical choices for full-sun patio exposure: the dye runs through the entire fiber rather than sitting on the surface, so UV degradation does not strip the color the way it does with printed or coated fabrics. For covered patios and screened porches with less direct sun, a wider range of outdoor upholstery fabrics is available in the same custom sizing. All covers include a removable YKK zipper for washing or seasonal replacement.
Foam Density for Deep Seat Outdoor Cushions
High-density foam provides strong support and resilience for outdoor cushions and will not collapse under prolonged use. For optimal comfort, a seat cushion thickness of 4 inches or more is recommended for deep seat applications. Standard foam cores can look fine initially, but after a month of outdoor use the cushion will appear worn — high-density foam with bounce-back resilience is what holds its shape season after season. For patio furniture left outside year-round, a moisture-resistant foam wrap adds an extra layer of protection against pooling water and humidity in the foam core. Custom thickness is available on every product page in this collection.