Planning a Sofa for Your Living Room: It Shapes the Room, Not the Other Way Round

Why the sofa shapes the living room

A large corner sofa can be three to four metres long and over a metre deep. It thus occupies a considerable part of the floor area and decides where you sit, where you look and how you move through the room. Table, rug and luminaires follow from it, not the other way round.

Then there is proportion. A low, deep sofa lowers the eye line, so the windows look taller and the room calmer. A high coffee table looks clumsy beside it, and a floor lamp that suits a classic sofa stands too tall here. A slim, upright sofa, in turn, quickly looks like a waiting-room bench in a wide room.

The sofa is where a living room is lived in. Everything else follows from it.

The first question is therefore not which sofa you like, but what is meant to happen on it. Do you lie stretched out in the evening, or sit upright with guests? Do you read, watch television, does the dog sleep alongside? What a living room looks like when the screen does not rule the space is described in the article on the living room without a TV wall. And which numbers matter once you know the answer?

Sofa, size and room: dimensions worth knowing

The values below are guidelines from planning practice, not standards. They depend on the model, the room and your height, and we always check them against the actual plan.

Seat depth is especially underrated. A deep sofa is wonderful for lying on, but smaller people sit uncomfortably on it without extra back cushions, and their legs dangle. Seat height is just as underrated: the lower and softer the upholstery, the harder it is to get up. Anyone who wants to stay in their home for a long time should keep this in mind, as the article on age-friendly living shows.

A sofa does not have to fill the room. If visible air remains between the sofa and the wall or window, it looks more generous than when it runs from wall to wall. In smaller living rooms in particular, a two-seater and a good armchair are often more fitting than a corner that blocks every route.

Planning a sofa for the living room: five steps

Before you decide on a model, a simple sequence is worthwhile. It costs little time and spares you the most expensive disappointment, namely a sofa that looks different at home than in the showroom.

1. Write down the use. How many people sit on an ordinary evening, how many on a feast day? Is it for lying, reading, watching television?
2. Draw the floor plan. Mark in doors, windows, radiators and sockets, plus all the routes that cross the room.
3. Tape out the footprint. Mark the sofa on the floor with masking tape and live with it for a few days. You soon notice where it gets tight.
4. Check the delivery route. Measure the front door, stairs, lift and door frames, diagonally too. In Altbau buildings (the pre-1945 Viennese apartment houses), large sofas often fail at the turn in the stairwell; modular parts usually solve that.
5. Sit-test for long enough. Stay seated for at least a quarter of an hour, lie down and get up several times. Try it as a pair and in your everyday posture.

Routes, views and the centre of the room

In the house by the Wienerwald, the central question is: where do you look from the sofa? At the garden, at the fireplace, or both? With its back to the wall, both references lie to the side and the gaze falls into the empty middle.

The solution in our example is a turn. The corner sofa moves away from the wall, the long arm runs parallel to the glass wall, the short one faces the fireplace. Behind the sofa the route to the terrace emerges. A slim sideboard frames the back and takes books and luminaires. Tischlerkultur, our joinery workshop, makes such pieces to measure, in the language of the built-in wardrobes in the rest of the house. The room thereby gains a centre and two directions of view.

Picture it in October: the fire crackling, the last light going out over the garden, and nobody has to walk around anybody. A freestanding sofa does, however, show its back. Before buying, check how the rear is finished and whether it can be seen. In an open plan this back often takes on the job of a wall, as the article Kitchen, dining, living: zones instead of rooms shows. And how the garden extends the living room, you can read in the article on the transition to terrace and garden. But what does a sofa in the middle of the room need?

Light, power and warmth: what is planned before the sofa

A sofa in the middle of the room needs light and power where there is no wall. A reading light, a table lamp on the sideboard, a charging spot for the tablet: if you do not plan these beforehand, you live with cables across the floor. That is why we fix the sofa position before the electrical planning is finished, and place floor sockets where they will later be hidden. How this is thought through from daily life is set out in the article on electrical planning.

For lighting, it pays to distinguish three layers: ambient light for the room, accent light for walls and objects, and reading light right at the seat. With a low sofa the light source must sit lower, otherwise it dazzles or misses the book. More on this in the articles on the basics of lighting design and on choosing luminaires.

Warmth counts too. A sofa directly in front of the radiator holds back the warm air and stresses the upholstery. With underfloor heating, a large seating landscape should rather stand on feet than lie flat, so that the heat is not trapped beneath it. How such systems work is described in the article on surface heating and living comfort. Direct sun also bleaches many fabrics and leathers. On a large south-facing front you should therefore think of curtains or a suitably lightfast cover.

Fabric, leather and acoustics

Choosing the cover is a decision about feel, care and sound all at once. Fabrics of wool or linen absorb sound and make a large room noticeably calmer. Leather is easy to wipe and gains a patina over the years, but absorbs less sound.

For durability there is a figure you can ask about: the Martindale value measures a fabric's resistance to abrasion. It says nothing, however, about pilling, lightfastness or feel, so you should also take a large sample home. For families with children or pets, removable covers and dense weaves are worthwhile, because a stain then does not turn into a matter of principle. Thinking ahead pays off here, as the article When the family grows shows.

In the house by the Wienerwald, a warm-grey, textured wool fabric suits, complemented by linen cushions. A room with a stone floor and a large glass front would otherwise echo strongly, and the upholstery helps against that. The sofa rarely manages it alone, though. How rugs and curtains help steer the acoustics, you can read in the article on textiles, and the fundamentals of the topic in the article on acoustics in open-plan living. Then comes the hard question: what is good upholstery?

Judging upholstered furniture: what matters

Anyone comparing upholstered furniture in Vienna sees many handsome covers. The quality, however, lies largely on the inside, and you are entitled to ask about it in the shop. Check the following:

• Frame: Solidly built from solid timber or metal. Lift a corner slightly: a stiff frame hardly twists.
• Suspension: Springs or webbing carry the seat evenly, without you feeling the frame.
• Padding: Foam holds its shape and sits firmer. Down or feather fillings sit softer but must be plumped regularly. Blends lie in between.
• Seams and cover: Seams run straight and lie without tension, patterns match at the joins.
• Adaptability: Modules can be rearranged, covers renewed later. That prolongs a sofa's life considerably and is also an argument in terms of longevity.

The name on the label replaces none of these checks. How to judge quality independently of it is described in the article on quality beyond the name.

What the costs depend on

The cost of a sofa follows mainly the size, the number of modules, the build inside and the cover. A custom piece or an elaborate fabric increases the effort, and so does the lead time. Added to that are the things around it that are often overlooked: floor sockets, lighting, a bespoke sideboard, a rug of the right size, possibly a complicated delivery.

So do not weigh up the seat in isolation, but the whole living room. A buying decision made in the showroom alone has its own price: a sofa that blocks the route, a cable across the floor, an evening that never quite feels right, and all of it for years. It is often wiser to invest in a sofa that stays for twenty years and can be reupholstered, and to be restrained with the accessories. We talk openly about the budget from the first conversation, and with us one contact person accompanies the whole path from the first sketch to the handover.