---
title: "Reading Nook Cushions: Sizes, Foam, Fabric and Measuring"
url: "https://cushionguide.com/cushions/reading-nook-cushions/"
section: "The Cushion Atlas"
author: "Rosa Delgado, The Porch Keeper of Savannah"
author_url: "https://cushionguide.com/masters/rosa/"
published: "2026-03-02"
updated: "2026-09-24"
keywords: "reading nook cushion, reading nook window seat cushion, custom nook cushion, built-in bench cushion, corner floor cushion, reading corner cushion"
---

# Reading nook cushions for window seats, alcoves and corners

*Every house has one spot where somebody disappears with a book and doesn't come back until supper. Here's how to size the cushion for that spot, from a sash-window seat to an attic dormer, drawn from the letters buyers send the workshop.*

> **The quick answer:** A reading nook cushion is a made-to-measure seat cushion for a window seat, alcove, dormer or built-in bench where someone sits to read. Most are 4 in (10 cm) thick foam in a zippered cover, cut to the seat's exact width and depth. Measure after the built-in is finished, trace any curve on paper, and order back cushions as separate pieces.

![Caramel linen-look window seat cushion in a reading nook with olive velvet pillow, chunky knit throw, brass sconce and books](https://cushionguide.com/media/window-seat-cushions/caramel-reading-nook-window-seat-cushion-brass-sconce-1536.webp "Caramel, brass and oak make one warm family in this reading nook, with an olive velvet pillow as the single cool note.")

## The corner where somebody always disappears

Measure a reading nook cushion last, after the carpenter packs up. That one habit saves more remakes than any fabric choice ever will.

The nook can be a window seat, an alcove, an attic dormer, a built-in bench or a corner of the floor: anywhere one person tucks up their feet and loses an afternoon. My grandmother's was a porch glider with a faded cushion three generations fought over. A reading nook cushion has to sit flat on a wooden base without sliding, keep its shape under knees and elbows, and look right from across the room, because a nook is usually the prettiest corner in the house.

Most nooks are [window seats](https://cushionguide.com/cushions/window-seat-cushions/), some are [bay windows](https://cushionguide.com/cushions/bay-window-cushions/), and a few are [corner floor cushions](https://cushionguide.com/cushions/corner-floor-cushions/) set right on the rug.

## The numbers the workshop asks for before cutting a nook seat

|   |   |
|---|---|
| Width | Wall to wall along the back, and again along the front edge; send both if they differ |
| Depth | Front edge straight back to the wall |
| Standard thickness | 4 in (10 cm), the thickness most buyers keep for window seats and benches |
| Thinnest foam | 2 in (5 cm) as standard; 1 in (2.5 cm) only without piping |
| Corner floor seat | Quarter-round cushions are sized by their two straight sides, up to 48 in (122 cm); a 48 in corner has an arc of about 75.4 in (191.5 cm) |
| Arches and curves | A measured sketch showing where each curve starts and ends, or a paper template photographed beside a tape measure |
| Back cushions | Separate pieces at their own size; write 'backrest' in the order note |

## Arched alcoves, attic dormers and L-shaped benches

Not every nook is a rectangle. An arched window recess can be drawn as a rectangle plus an arc of a circle, and the workshop won't guess a curve from a width and a depth. Mark where each curve starts and ends and how deep it runs, or lay wrapping paper on the seat, trace it with a marker, cut it out and photograph it flat beside a tape measure. [How to make a paper template](https://cushionguide.com/guides/paper-template-for-custom-cushion/) shows the steps.

An L-shaped nook, like the teal velvet bench below a gallery wall in our photographs, is made in two pieces. Send the end-to-end length of each leg and say which runs need a back.

For the edge, a [box cushion](https://cushionguide.com/glossary/#box-cushion) with piping is the classic nook look: rose-plum chenille with champagne piping on a walnut seat, mocha brown piped in its own color in a cabin facing the pines.

## Fabric for socks, cats and a mug of cocoa

Kids and dogs are the real quality control, and a nook meets both before lunch. Choose for the light first and the traffic second.

- [Linen-look weaves](https://cushionguide.com/fabrics/linen-look-fabrics/): the caramel seat under a brass swing-arm sconce, calm and easy to live with.
- [Velvet](https://cushionguide.com/fabrics/velvet/): forest green on an antique oak settle, ivory over built-in drawers. Rich, and it shows where you sat.
- [Striped cotton and ticking](https://cushionguide.com/fabrics/striped-cotton-and-ticking/): the magenta stripe on an attic dormer seat. The roll is about 55 in (140 cm) wide, so on a long seat the stripes run front to back by default.
- [Bouclé and teddy](https://cushionguide.com/fabrics/boucle-and-teddy/): the terracotta alcove seat under an arched window.
- [Performance and pet-friendly weaves](https://cushionguide.com/fabrics/performance-and-pet-friendly/): for the nook the dog already owns, like the raspberry bench with a spaniel asleep on it.

Is your nook in full sun? Read [will a window seat cushion fade](https://cushionguide.com/guides/window-seat-cushion-fading-sun/) before you fall for a color.

## Four inches of foam, and what goes behind your back

The standard is 4 in (10 cm) of foam, and most buyers keep it; it's the thickness you see in most of our photographs. The thinnest standard cushion is 2 in (5 cm).

Firmness runs about 6 to 7 on a 1 to 10 scale. Back cushions are softer than seats by default, though a back can be made just as firm. High-density foam gives the flat, tailored look of the ivory velvet seat, and with an inner support wrap a cushion can overhang the front of a seat by up to about 2 in (5 cm).

A backrest is its own item at its own size. Depth, bolsters and back pillows are laid out in [reading nook cushions: depth, bolsters and back pillows](https://cushionguide.com/guides/reading-nook-cushion-bolsters/). Not sure how firm? The [foam firmness finder](https://cushionguide.com/studio/foam-firmness-finder/) asks how you sit.

## The nook that grew an inch and a half overnight

A buyer wrote to the workshop about a child's reading nook going into a brand-new built-in. They picked a black-and-white-with-gray fabric and a mustard velvet, and planned the cushion at about 23 5/8 x 39 3/8 in (60 x 100 cm).

The carpentry was going in the very next day, so the workshop held the order and waited. Once the wood was in and measured, the seat came to about 25 1/4 x 39 3/8 in (64 x 100 cm), just over 1 1/2 in (4 cm) bigger on one side than the plan. Production picked up from there, and the cushion fit the seat that actually got built.

## Where nook cushions go wrong

- ✗ Measuring before the built-in is finished. Wait for the carpenter, or ask the workshop to hold the order until you send final sizes.
- ✗ Cutting a cushion exactly to a narrow window seat and expecting it to stay put. A smooth sill gives it nothing to grip; ask for a non-slip base or ties.
- ✗ Typing ties into the size box. Ties are added only on request, so write their position, length and color in the order note and confirm by message.
- ✗ Leaving a floor corner cushion bare on hardwood. A rug or grip mat underneath stops the slide.
- ✗ Assuming the pillows in the photo come with the seat. Styled pillows and backrests are separate pieces, each ordered at its own size.
- ✗ Sending numbers for an arch without a drawing or a traced template.

> One child's reading nook seat came out just over 1 1/2 in (4 cm) bigger than planned. Measure a nook cushion after the built-in is installed, never before.
>
> — Rosa

## Dressing the nook, and the tools to try first

Give the seat one solid color and let the pillows carry the pattern: an olive velvet pillow and a chunky knit throw on the caramel seat, linen pillows beside a sleeping cat on the mocha one. Add a lamp you can reach without getting up, and that's the whole recipe, neighbor.

Where does the light fall in your nook at four in the afternoon? Pick the fabric in that light, not under the kitchen bulb.

Sketch a straight seat in the [bench cushion builder](https://cushionguide.com/studio/bench-cushion-builder/), or an angled one in the [bay window calculator](https://cushionguide.com/studio/bay-window-calculator/). Then read [how to measure a window seat cushion](https://cushionguide.com/guides/how-to-measure-window-seat-cushion/) and [window seat cushion thickness](https://cushionguide.com/guides/window-seat-cushion-thickness/). Built-ins with a story of their own live in [built-in reading nook cushions](https://cushionguide.com/concepts/built-in-reading-nook-cushions/).

> **Tailor's margin:** If the built-in isn't finished, ask the workshop to hold the reading nook cushion order and send the final seat size once the wood is in.

## Setting up the nook, beyond the cushion

- ✓ Seat: a cushion cut wall to wall, 3 to 4 in thick for everyday reading
- ✓ Width: about 48 in if you want to sit sideways with your back to the wall
- ✓ Back support: one lumbar about 12 x 20 in, plus two or three pillows in different sizes
- ✓ Ends: a bolster at each end turns the walls into armrests
- ✓ Light: a wall sconce or clip lamp at shoulder height beside the reader
- ✓ Shelf: an 8 to 10 in deep sill or ledge holds books and a mug
- ✓ Warmth: a throw kept in a basket, not piled on the seat

## Buyer questions

**A common question:** My window seat sits under an arch. How do I show you the curve?

**The workshop's answer:** Draw it or trace it. On a sketch, give the total width and depth, the straight length of each edge before the curve starts, where each curve starts and ends, and how deep it runs; an arched seat can be drawn as a rectangle plus an arc of a circle. For a tricky curve, lay wrapping paper on the seat, trace it, cut it out and photograph it flat beside a tape measure. The shape is confirmed before production.

**A common question:** Our nook is an L-shaped bench and we'd like backs on it. What do you need from me?

**The workshop's answer:** The end-to-end length of each leg, the seat depth and thickness, and a sketch or photo. Say whether any part is angled and which runs need backrests; a back can run along one side only. Outside and inside measurements work too: one L measured 90 x 55 in outside and 72.75 x 39 in inside and was planned as 82 x 18 in and 29.25 x 18 in. Standard thickness is 4 in.

**A common question:** We move before the nook is ready. Can the cushion arrive after we're in?

**The workshop's answer:** Yes. Write 'please deliver on or after [date]' in the order note or send a message, and the finished order is held, or production timed, so it lands as close to that date as possible. Shipping straight to the new address is the surest plan, and a new-build address that isn't receiving deliveries yet can wait until you've moved in. Transit time varies, so one exact day can't be promised; leave a margin before any date that matters.

**A common question:** The nook cushion arrived too short. Will you make it again?

**The workshop's answer:** Send a photo with a tape measure along the full length and ask the workshop what it will do; past cases include 54 in delivered instead of 57 in and 36 in instead of 44 in. When the workshop made the error, only the parts that didn't fit were remade, the wrong one didn't need to come back, the piping color could change on the replacement, and a partial refund was offered to buyers who'd rather keep it.

**A common question:** Could a floor cushion in the kids' reading corner double as a sleepover bed?

**The workshop's answer:** Yes. The cushions are solid enough to lie on, and many buyers use them as children's sleepover beds. Under a loft bed, 24 x 70 in or 27 x 70 in is typical, and 70 to 75 in lengths are made routinely; a twin is about 38 x 75 in. A 6 or 8 in thickness sits higher off the floor. For a toddler, there's a separate kids' foam bed.

**A common question:** I sent the wrong nook size just after ordering. Is it too late to fix?

**The workshop's answer:** Message quickly. Dimensions can be corrected after ordering, as when one piece was updated to 75 x 38 x 8 in. A finished custom piece usually can't be altered, though, so send final sizes and a drawing as early as you can.

## Questions from the reading corner

### How thick should a reading nook cushion be?

Most are 4 in (10 cm), the standard for window seats and benches and the thickness most buyers keep. Go down to 2 in (5 cm) when the seat is already high; 1 in (2.5 cm) is possible only without piping, and tufted cushions can't be made that thin.

### Do the pillows in nook photos come with the cushion?

No. Listing prices are per single cushion, and pillows styled in photos are decorative and sold separately. A back cushion is its own item too: add it at its own size and write 'backrest' in the note. Floor-cushion and French sets are the exception; their price includes the backrest and bolsters.

### How big can a corner floor cushion for a reading corner be?

Quarter-round corner cushions are sized by their two straight sides, up to a standard maximum of 48 in (122 cm); a 48 in corner has a curved front of about 75.4 in (191.5 cm). Round French floor cushions go up to about 49 in (125 cm) across.

### Which way do stripes run on a long window seat cushion?

Front to back, by default. The fabric roll is about 55 in (140 cm) wide, so a long striped seat is cut with the stripes running across its depth, and a very long striped piece needs a seam. Stripes are pattern-matched on one face only.

### How do I stop a nook cushion sliding on a smooth wooden seat?

Ask for fabric ties sewn into the seams at the corners or back, in any position, or for a non-slip base. Neither is standard, so write the request in the order note and confirm it by message. On a floor corner, a rug or grip mat underneath stops the slide.

### Will a back cushion stand against the wall without straps?

Often, yes. Double piping gives back cushions enough structure to stay in place without straps. Backs are softer than seats by default but can be made just as firm, and ties sewn into the seams can hold a backrest to its seat.

### How many pillows does a reading nook need?

Fewer than you might think. Styling guides suggest two or three pillows in different sizes, and no more than three to five in all, plus one lumbar about 12 x 20 in for the small of the back. Too many identical squares steal seat depth and end up on the floor, so size them to the seat rather than the shop display.

### How wide does a nook need to be to sit sideways with my back to the wall?

At least about 48 in, according to one widely read window seat guide; facing forward, 32 in is enough for one person, and 60 in or more fits company. To stretch out fully, measure your own height plus room for a bolster or pillow at each end, because the cushion runs wall to wall.

## Related at the atelier

- [Window Seat Cushion in Forest Green: Where to Spend and Save](https://cushionguide.com/readings/forest-green-window-seat-cushion-mustard-piping/): On a custom window seat cushion, spend on the seat: a box edge cut to the full depth of the window box, flush to the wall and front, with piping that outlines a dark color.
- [Sage Bouclé Window Seat Cushion Built for Hours of Reading](https://cushionguide.com/readings/sage-boucle-window-seat-cushion-morning-sun-alcove/): A window seat cushion for long reading should fill the alcove wall to wall and be thick and firm enough to turn a plain bench into a real seat.
- [How to measure a window seat cushion when the walls aren't square](https://cushionguide.com/guides/how-to-measure-window-seat-cushion/): To measure a window seat cushion in an older home, take the width at the front edge and along the back wall, then the depth at the left end, middle and right end, all from the face of the trim and…
- [Quarter-round floor cushions: a reading nook without carpentry](https://cushionguide.com/concepts/corner-reading-nook-floor-cushions/): A corner floor cushion is sized by its two straight sides, the ones against the walls: 40 x 40 in (about 100 x 100 cm) suits toddlers, and 48 x 48 in (122 x 122 cm), the standard maximum, suits an…
- [Cushions for Pacific Northwest homes](https://cushionguide.com/places/pacific-northwest-cushions/): Pacific Northwest outdoor cushions should be made in outdoor fabric even on a covered porch, because damp air lingers for months and indoor fabrics aren't waterproof.
- [Window seat dimensions and the cushion sizes that fit them](https://cushionguide.com/guides/window-seat-dimensions/)

*Porch light's on — Rosa*

---

Written by Rosa Delgado (https://cushionguide.com/masters/rosa/) for CushionGuide (https://cushionguide.com/about/). The site explains made-to-measure cushions and the partner workshop makes them; measurements are in inches first. This Markdown mirrors the page at https://cushionguide.com/cushions/reading-nook-cushions/