--- title: "Modular Floor Sofa Custom Size or Backrest Swap: What to Write" url: "https://cushionguide.com/answers/modular-sofa-personalization-standard-size-backrest-swap/" section: "The Cutting Table" author: "Margaret Holloway, The Piping Queen of Newport" author_url: "https://cushionguide.com/masters/maggie/" published: "2026-04-01" updated: "2026-09-24" keywords: "modular floor sofa custom size backrest swap, modular sofa personalization box, floor sofa standard size 79 x 39, swap L-shaped backrest for straight" --- # What do I write in the personalization box for the modular sofa? *The box looks like homework. It's really a two-line note, and here are both lines.* Also asked as: What are the personalization options?; It says custom sizes, but sizes are already listed > **The quick answer:** Write 'standard size' if the default 79 x 39 in (200 x 100 cm) suits you; otherwise type your custom measurements in the same personalization box. Module changes go there too, such as '2 L-shaped plus 2 straight backrests' to swap a corner backrest for a straight one. These changes don't delay the order. ![Espresso brown linen-look tufted floor sofa corner with four back cushions and two bolsters on a jute rug](https://cushionguide.com/media/modular-floor-sofas/espresso-brown-tufted-floor-sofa-corner-window-1600.webp "In espresso, the same corner layout feels warmer and more lounge-like.") ## Key facts - Write 'standard size' in personalization for the default 79 x 39 in (200 x 100 cm). - Custom measurements go in the same personalization box. - The backrest mix, L-shaped or straight, can be changed through personalization. - Backrest changes don't delay the order. - The fastest shipping is express air courier; ask for its current timing. ## What to type, by what you want | You want | Type in the box | What happens | |---|---|---| | The standard sofa, 79 x 39 in (200 x 100 cm) | standard size | Made at the default size | | A different overall size | Your length and depth, labeled | Made to order at your size | | One L-shaped backrest swapped for a straight one | 2 L-shaped plus 2 straight backrests | No delay to the order | | A new size and a new backrest mix | The measurements first, then the backrest count | Both read from one note | ## Why a listing with sizes still asks for a size Right, then. One buyer put it perfectly: the listing says custom sizes, yet the sizes are already provided. Both are true. The [modular sofa](https://cushionguide.com/glossary/#modular-sofa) has a standard footprint, and the box is where you either accept it in two words or overrule it with your own numbers. The same box handles the modules. A corner sofa comes with L-shaped backrests, and if your wall wants straight ones, you write the count. I once wrote a note so long the cutter phoned me to ask which half I meant. Keep yours to two lines, dear. A caution: some sofa listings take size and color from the dropdowns and want only a delivery phone number in the box, so read the prompt on yours. The [personalization note Pattern](https://cushionguide.com/guides/custom-cushion-personalization-note/) and [modular layouts](https://cushionguide.com/guides/modular-floor-sofa-layouts/) cover the rest. How long is the wall your sofa will sit against? ## Before you press order - ✓ Standard sofa? Two words: standard size. - ✓ Custom sofa? Length and depth, each labeled with its unit. - ✓ Backrest swap? Count every backrest: 2 L-shaped plus 2 straight. - ✓ Nothing in the box is printed on the sofa; it is instructions, not embroidery. > **Tailor's margin:** In the modular sofa personalization box, 'standard size' means 79 x 39 in; anything else you type there is made to order. > Swapping an L-shaped backrest for a straight one on a modular floor sofa is a note in the personalization box, and it doesn't delay the order. > > — Maggie ## Buyer questions **A common question:** The listing wants customization details. What do I write if I just want the standard size? **The workshop's answer:** If the standard 79 x 39 in (200 x 100 cm) works for you, write 'standard size' and place the order. For a different size, type your measurements in the same box and the sofa is made to order. **A common question:** Can one of the corner sofa's L-shaped backrests be swapped for a straight one? **The workshop's answer:** Yes. Order as usual and write the change in the personalization box, for example 2 L-shaped plus 2 straight backrests. It doesn't delay the order; the fastest shipping is express air courier, with timing confirmed when you order. **A common question:** Checkout makes me fill in personalization. Will what I type be printed on the sofa? **The workshop's answer:** No. Nothing in the box is printed on the product. On many listings it is just your phone number for the courier; size-only listings also need your fabric and piping codes there. **A common question:** If the size dropdown and the size I typed disagree, which one gets made? **The workshop's answer:** Your typed exact size. The dropdown only sets the size range and price, and the shop confirms size and color when production starts. ## Questions buyers ask next ### What is the standard size of the modular floor sofa? 79 x 39 in (200 x 100 cm). If that suits your room, the whole personalization note is simply 'standard size', and the sofa is made at the default footprint. ### Can the workshop embroider a name on the sofa? No. The workshop doesn't embroider, print or letter names or text. Personalization means your size, fabric, piping and module choices, written as instructions for the cutting table. ### How fast can a modular floor sofa ship? The fastest option is express air courier; ask the workshop for its current timing. Once the sofa lands, the foam takes 3-5 days to come fully firm. A backrest swap or other module change written in the personalization box doesn't add to the order's timeline. ## Related at the atelier - [Does the modular floor sofa have piping or a flat seam?](https://cushionguide.com/answers/modular-sofa-flat-seam-or-piping/): A modular floor sofa comes with a flat seam by default, with no raised piping or welt, and every piece, ottoman and backrests included, is sewn to match. - [Can I extend my floor sofa into an L-shape or buy extra backrests later?](https://cushionguide.com/answers/extend-modular-floor-sofa-l-shape/): A modular floor sofa can be extended into an L-shaped corner couch later by ordering the same sofa again in the same color. - [Can my furniture store buy teddy sofas in bulk?](https://cushionguide.com/answers/teddy-sofa-wholesale-furniture-stores/): Yes, a furniture store can buy teddy sofas in bulk or on a regular basis: the workshop is the manufacturer and agrees trade terms directly. - [Modular Floor Sofa in Cream Velvet with Raspberry Box Ends](https://cushionguide.com/readings/raspberry-cream-floor-sofa-japandi-oak-bench/): A modular floor sofa reads calmest with a box edge and no piping, because the seam between the cream seat and the raspberry end panels already draws the line. - [Modular Floor Sofa From Above: What to Measure First](https://cushionguide.com/readings/mustard-velvet-floor-sofa-overhead-mediterranean/): Measure for a modular floor sofa by its footprint on the floor, not by seat height. - [Can you sleep on a floor sofa? Bed size, firmness and sheets](https://cushionguide.com/guides/floor-sofa-bed-size-firmness/): A modular floor sofa opens into a guest bed of about 79 x 79 in (200 x 200 cm), close to king size, when its two seat mattresses lie side by side. - [Corner floor sofa layouts: L-shapes, U-shapes, open or closed corners, straight runs](https://cushionguide.com/guides/modular-floor-sofa-layouts/) *Stitch straight — Maggie* --- Written by Margaret Holloway (https://cushionguide.com/masters/maggie/) 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/answers/modular-sofa-personalization-standard-size-backrest-swap/