21" x 21" Outdoor Cushions – Custom Made to Your Exact Size
Width, depth, and thickness cut to your numbers — never to a stock size table. Straight from the factory, order one or more.
See the full cushion size chart — every standard size and its typical frames at a glance.
Start with your shape
Not sure? Pick the closest — every measurement is confirmed before we cut.
Don't see your shape? We make any shape.
Straight edges? A top photo + the edge numbers is all we need. Curved? Trace it on paper next to a tape measure and email us a photo.
Enter your measurements
Measure the old cushion flat, edge to edge — never the frame.
Choose your fabric
Five families, 119 cuts, one flat rate — pick by look and feel. Click a family to see its swatches below, or its ⓘ for what the fabric is and where it works best.
All covers cut to your exact dimensions — no stock sizes, zippered covers that remove for washing.
Review & order
Calculated live from your measurements — every line, no surprises.
Free shipping over $158 · $29 flat below
Estimates only — we re-verify every dimension before cutting and will contact you if anything looks off. Prefer email? Email me this quote
Odd shape or tricky frame? Upload a photo of your furniture or old cushion — one overall shot, plus a top and side view of the old cushion if you can.
JPG, PNG or WebP · up to 10 MB each · max 3
Made and shipped from the same bench
The full 119 sit in the configurator
Sewn to the numbers you send
A wrong cut is remade, not argued
Build Your 21 x 21 Cushion
Twenty-one square is the size nobody stocks and plenty of frames want — it sits between the 20 dining standard and the 22 lounge module, which is exactly where a lot of mid-range patio furniture was cut. The ladder keeps climbing past 22 — the 23 x 23 lounge square, then the oversized run on up to the 30 x 30 daybed square. Our library documents factory pieces at this square and its nearest sizes across six series, including a chat-chair back and a dining seat: the table below tells you if your set is one of them.
We cut every 21 x 21 outdoor cushion to your measurements — width, depth, thickness — in three fabric families, all one price: Tech Fabric, our leather-like waterproof weave that wipes clean — the outdoor workhorse; Cotton Linen, a durable everyday weave for covered patios and indoors; or Premium Velvet, plush claw-resistant velvet for indoor luxury. Three-and-a-half to four inches suits seat duty; backs at this square typically run thinner. Covers close with a zipper and remove for washing; fit does the holding — a pad cut to your numbers sits the frame without wandering.
Close but not exactly 21 x 21? Type your numbers — decimals included — and the estimate updates as you go →
Pricing — estimated starting at
*One cushion, 21 × 21 in. (3.06 sq ft top surface): $45 make-base + 3.06 sq ft × combined foam + fabric rate ($26.47/sq ft in 35D, $27.37 in 50D, $28.69 in 65D, each at the 3-inch default). One price covers all 119 fabrics — pick on looks alone. The 102 entry teams 35D foam with the 2-inch minimum cut. Thickness and closure type get locked in at checkout, and each dimension is re-confirmed with you before the knife moves.
For scale: configurator-based U.S. custom shops listed made-to-order cushions in the 16×16-through-24×24 range near $71–$119 before shipping in 2026 — figures most customers reach only by requesting a quote. Here, every element of the estimate traces back to a size your tape measure can confirm.
Fits these furniture series
Tolerance for a match: width and depth inside 1.5 in. of 21 x 21 apiece. The size data comes from measured factory originals and supplier documentation. Before we cut, every dimension is re-verified against the order. Listed brands are referenced for fit identification, not affiliation.
Exact fit in any size — get an instant quote.
Yours measures off the chart? Good — the cut follows your numbers.
Measure your 21 x 21 seat
- Table, flat cushion, tape measure: width goes edge to edge, depth runs front to back, thickness is taken at the seam — and the pad stays uncompressed.
- No old cushion? Measure the seat deck between the frame rails and arms, and send the raw numbers rather than rounding.
- Photograph the label under the frame first — a model number can match you to a documented series chart in seconds.
A full photographic walkthrough lives here: How to Measure (and Identify) Your Cushions.
Fabric choices at 21 x 21
Wicker and metal cafe frames at 21 inches spend their summers in full sun — Tech Fabric is the default for open sets, Cotton Linen for covered, Premium Velvet for indoor nooks. The tier logic and climate breakdown are in the outdoor fabric guide.
Some of the 119 fabrics on offer — the configurator shows each one close up before you commit.
When 21 x 21 buyers shop — and why it matters
Thickness & Foam for a 21 x 21
Twenty-one inch squares sit between dining and lounge — wide dining chairs, compact loungers, wicker cafe sets. Thickness splits the same way: 3 inches for upright dining frames, 4–5 where the chair leans back. The recline angle matters more than people expect — a pad on a tilted deck slides forward, so an exact-fit cut matters as much as thickness — and a thin non-slip rug pad trimmed slightly smaller than the cushion, laid flat underneath, helps if the frame gets dragged around.
Density at this size: 35D for occasional sets, 50D for daily use, with the high grades better spent on true lounging furniture. Grade and dimensions are confirmed together in writing before cutting.
Searches for this square do not spread evenly across the year: they climb through spring, peak hard in May, and run two to four times their winter floor through summer. The furniture explains the shape — cushions discovered dead during the first warm-weather scrub-up, frames dragged out of the garage and found sun-bleached, guests scheduled and seats needed. The pattern repeats every year with the reliability of the weather that causes it.
What the season means for an order: production runs on queue depth, and May is the deepest queue of the year. An order placed in March cuts in days; the same order in mid-May waits behind everyone else’s scrub-up. If you are reading this in spring with summer plans, the honest advice is to measure now and order now — the seven-to-fourteen-business-day production clock starts when the order lands, and every week of May adds queue to the front of it.
Between 20 and 22
Twenty-one sits alone between two heavy sizes — 20 x 20 is the patio default and 22 x 22 the compact-lounge module — and frames split accordingly. Wicker dining chairs run 19–21 squares with 21 the top of the run; chat chairs and mid-range lounge modules take it as a true 21; the library holds a chat-chair back, a dining seat, and an ottoman at this square within a half inch. If your tape reads 20.5 or 21.5, order that — the rounding trap bites hardest on the odd squares, where a half inch one way lands you in a different family’s stock chart and a quarter inch the other is the difference between tailored and riding up at the corners.
A sample of the 119-fabric range — every option is open in the configurator before you order.
Frequently asked questions
The bench that cuts it boxes it
- Outdoor cushion production for ten-plus years — cutting, filling, and sewing done in-house, order by order.
- The dimensions you send are reviewed once more before fabric ever reaches the table.
- Made to order covers any fabric, any piece, and no minimum quantity.
- If the build misses — exceeding ±½″ (±¾″ beyond 36″), wrong fabric, or wrong build — it is remade free.
Custom 21 x 21 cushions from $120 — get a quote in four steps.
Ready when you are. Enter your measurements, pick your fabric and your finishing — every dimension comes back to you for confirmation before we cut. One cushion or a whole set, from the factory that ships them. Cut to within ½ inch of your confirmed numbers — outside tolerance, remade free.
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Background reading
Breakfast Nook Cushions: The Corner-Seating Build Guide
Breakfast nook cushion guide: L-shaped and U-shaped runs, corner geometry and seam placement, seat-plus-back builds at dining height, morning-sun fabric logic, and ordering the whole run from one fabric lot.
Cushion Shapes Guide: All 11 Shapes, What They Fit, and How to Measure Each One
A field guide to every cushion shape we cut — rectangle, chaise, L-shape, T-cushion, bowed, notched, round, oval, half-round and wedge — which furniture each one belongs to, how to measure it in inches, and exactly which shape to pick in our custom cushion builder.
Outdoor Dining Sets: Buying the Set Right So the Cushions Work
Outdoor dining set buying guide: how the set choice locks in your cushion future — seat sizes, arm heights, frame materials, cushion quality in boxed sets versus custom pads, and set versus separate buying.
Best Outdoor Furniture Materials: What to Buy for Your Climate and Budget
The material-by-material guide to outdoor furniture — teak, aluminum, steel, HDPE wicker, resin, recycled plastic and more — ranked for weather endurance, maintenance burden and cost, with the cushion spec each one implies.
Sofa Foam Cut to Size: How to Order Exact-Fit Foam
How to order sofa foam cut to size — measuring the core, adding the compression allowance, specifying density, thickness and shape, and the checklist to run before any foam is cut.
Cheap vs Quality Outdoor Cushions: Where the Money Actually Goes
What separates a $15 cushion from a $60 one and a $150 one — fabric construction, fill, stitching and covers — which upgrades matter, which are markup, and how to buy the quality your furniture actually needs without overpaying.