A 15 m² living room, several ways to live in it.
Here is how a Le Marchand d’intérieur project can be presented: the points to examine in the room, the layouts to compare and the purchases to plan.
First, understand how the room is lived in.
Circulation, light and the way the room is used set the first direction. Decoration then dresses the layout.
The sofa cuts the room in two and turns its back on the window.
Way through 55 cmIt moves against the left-hand wall, 45 cm from the table; the window lights the seating from the side.
Seat to table 45 cmFrom the door to the window, you walk straight through, and the centre of the room opens up.
Way through 95 cmLay out first
The distances that make a room comfortable to live in, checked on your plan.
- Way through, walking straight90 cm
- Way through, squeezing past60 cm
- From seat to coffee table40 to 45 cm
- Rug under the front legs of the seating20 cm
- Low storage, at armrest height60 cm
Decorate next
The proportions and settings that hold a palette and a light together.
- Palette: dominant, secondary, accent60 · 30 · 10
- Evening light, in three layersambient · task · accent
- Colour temperature of the living room bulbs2,700 K
- Curtain pole above the opening+ 15 cm
- Objects on a low unit3 at most
Le Marchand d’intérieur recommends a layout. You choose the objects.
The same room, other possibilities.
Compare the products, object by object. For each proposal, look at where the furniture sits, how the materials combine and which products make up the whole. The plan checks the ways through, and the costing follows. Try it on this living room, with a purchase budget of €4,000.
Checks and composition notes
Advice · decorationEcru linen reflects the light from the window. Choose removable covers: the whole sofa can be washed.
If sold out: 205 to 215 cm wide, 90 cm deep at most, seat at 42 cm, linen or washed cotton, ecru.
Advice · layout110 cm, half the length of the sofa: the proportion that holds the composition.
If sold out: 110 × 60 cm, height 35 to 40 cm, oiled oak or ash.
Advice · decorationLight to the eye, it shows the floor and opens up the corner. Add a seat pad to last an evening.
If sold out: 65 to 75 cm wide, 75 cm deep at most, seat at 40 cm, rattan or cane.
Advice · layoutAt armrest height, it extends the line of the sofa. On top: three objects, no more.
If sold out: 160 cm long at most, 40 cm deep at most, oak, 2 to 3 doors.
Advice · decorationDiffuse light, no hard shadow. A 2,700 K bulb keeps it warm in the evening.
If sold out: rice paper, diffusing, 2,700 K E27 bulb.
The purchases behind the proposal.
The costing details the products proposed for this room, their quantities and the amounts involved. It helps you prepare your purchases and decide on your priorities.
- Room
- Living room
- Floor area
- 15.12 m²
- Purchase budget
- 4,000 €
- Prices recorded on
- 29/09/2026
- Status
- Example
Budget for the proposed products3,715 €
Left in your budget285 €
| Reference | Product | Quantity | Unit price | Amount |
|---|---|---|---|---|
| Section 1 · Furniture | ||||
| 1.1 | Three-seat sofa, ecru linenCan be replaced by: 205 to 215 cm wide, 90 cm deep at most, seat at 42 cm, linen or washed cotton, ecru. | 1 | 1,290 € | 1,290 € |
| 1.2 | Oiled oak tableCan be replaced by: 110 × 60 cm, height 35 to 40 cm, oiled oak or ash. | 1 | 390 € | 390 € |
| 1.3 | Rattan armchairCan be replaced by: 65 to 75 cm wide, 75 cm deep at most, seat at 40 cm, rattan or cane. | 1 | 390 € | 390 € |
Not included: building work, installation and flooring. Each seller’s own order charges are to be checked with them.
Before you order: check the prices, current at the time of purchase, and the dimensions of your doors, staircase and lift.
If a product is out of stock: each line gives its replacement criteria, dimensions and material.
And in your own room?
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