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The Cutting Table · a checklist answer

The size menu only asks for width and length. What do I pick for a trapezoid cushion?

Also asked as:The calculator only asks for two measurements.How do I enter trapezoid measurements?

Two boxes, four sides. The size menu quotes a price bracket, partner; your notes carry the pattern.

Answered by

The Pattern Engineer of Detroit ·

Knotted black, gray and cream stripe cushion on an oak-topped bay window seat with linen pillows, a mug and an open bookSave
Cut a little shallower than the oak seat board, the cushion leaves a ledge at the front for a mug and a book.

The quick answer

Pick the size range that covers your trapezoid's longest side and its deepest depth; that choice only sets the price. Then write the exact long side, short side, depth, both angled sides, thickness and fabric code in the personalization or order-notes box, or upload a marked-up photo. The cushion is cut to those numbers, not to the range.

Get a quote for a bay window cushion

Key facts

  • The price comes from the maximum length and the maximum width (depth) of the shape.
  • Choose the closest size range that covers the overall size, for example about 85 × 23.8 in (216 × 60.5 cm).
  • Exact sides go in the personalization or order-notes box at checkout: long side, short side, depth and both angled sides.
  • A marked-up photo or drawing with every dimension can be uploaded instead.
  • The cushion is made to the exact measurements, not to the size range selected.
  • 2, 3, 4 and 5 in thicknesses cost the same for trapezoid cushions.
  • On request, the workshop works out the price and sends photos of earlier trapezoid cushions.

Have it made

Have Nate’s workshop cut this for you

Send the numbers in inches: length × depth × thickness, plus any angle. The workshop checks them with you, because foam has no undo button. — Nate

Leave your details and the workshop will call you to confirm measurements, fabric, foam and piping. No prices, dates or payment on this page: it is a request, not an order.

Fabric · Foam · Pipingwhat the workshop will confirm with you

Fabric
The cover cloth: weave, color and care code.
Foam
The core: its density and thickness set the feel.
Piping
The corded seam edge: matching, contrast or none.
Only for this request: no marketing calls or texts. Outside the US, add the country code.
In inches: length × depth × thickness, plus any angles or cut corners.

* Required. A member of the workshop team will call you to talk it through; nothing is charged and nothing is made until you have agreed on every detail with them.

We use these details only to answer this request and make your cushion: your name and contact details, the cushion details and photos you send, the page you came from and the ad or link that brought you, if any. The workshop that makes the cushions receives them. We don't sell them or share them for advertising, and we delete requests after 24 months. Privacy notice for requests.

Nothing is made or charged until you approve the details.

Want to pick the shape and add photos? Use the full quote form

Five boxes to fill before checkout

  1. Length: your longest side, in inches.
  2. Width: the deepest point, measured straight front to back, not along a slanted side.
  3. Size range: the closest bracket that covers both, such as about 85 × 23.8 in (216 × 60.5 cm).
  4. Order notes: long side, short side, depth and both angled sides, plus thickness and fabric code.
  5. Upload: one marked-up photo or drawing with every edge labeled, if you prefer drawing to typing.

Why a four-sided shape gets a two-box menu

Picture the smallest rectangle your trapezoid cushion fits inside: longest side by deepest depth. That rectangle sets the price bracket. Nothing more.

The shape travels in the notes. One angled bay window seat ran about 47 in at the back, 14 in deep and 54 in at the front (120, 35 and 137 cm). Bracket: 54 × 14 in. Pattern: all three numbers plus the slants.

What does your longest side measure? Start there, then let the trapezoid cushion calculator check that your slants agree.

What slows a trapezoid order down

  • Choosing the range by the short side.
  • Measuring depth along an angled side instead of straight across.
  • Leaving the notes box empty. A size range is not a shape.

The size range on a trapezoid cushion order only sets the price; the cushion is cut to the four sides you write in the order notes.

Nate
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Buyer questions

  1. A common question

    How do I order a trapezoid window seat cushion when the size calculator only asks for width and length?

    The workshop's answer

    Enter the maximum width and length so the price can be calculated, then write the exact sides in the order notes at checkout. The workshop can also work out the price and send photos of earlier trapezoid cushions.

  2. A common question

    Can I order a bay window seat cushion straight from a marked-up photo?

    The workshop's answer

    Yes. Select the size range covering the overall size, for example 85 × 23¾ in (216 × 60.5 cm), give the fabric code and thickness in the personalization box, and upload the photo. The 2, 3, 4 and 5 in thicknesses cost the same.

  3. A common question

    The order form takes only one photo. How do I send the rest of my drawings?

    The workshop's answer

    Upload one image and write 'drawings sent via message', then send the rest in the chat or merge them into one image. If attachments are blocked, wait for the workshop's first reply.

Questions buyers ask next

Will my trapezoid cushion come out at the full size of the range I chose?

No. The range is only a price bracket. The cushion is cut to the exact long side, short side, depth and angled sides written in your notes or marked on your uploaded drawing.

Should I mail a paper template for an angled window seat?

No. A hand drawing with every edge measured, or photos plus measurements, is enough. If you already made a full-size template, photograph it with the measurements marked instead.

Does a thicker trapezoid cushion cost more?

Not between the standard options: 2, 3, 4 and 5 in are priced the same for trapezoid cushions. Write the thickness you want in the notes, next to the four sides and the fabric code.