WHAT SIZE SOFA FITS
A BANGKOK CONDO?

Most sofa mistakes in Bangkok are made with a tape measure, not a fabric swatch. The piece looked right in the showroom, the colour was right, the price was right — and then it arrived and the living room became a corridor, or it never arrived at all because it would not turn the corner out of the service lift. This guide is the checklist we work through on every site visit before a sofa is drawn.

None of it requires a designer. It requires a tape measure, about twenty minutes, and the willingness to measure things that do not seem to matter yet.

START WITH THE ROOM, NOT THE SOFA

A typical Bangkok condo living room is long and narrow, often with the kitchen, the entrance and the balcony door all opening onto it. Before choosing a width, mark the three things a sofa must not block: the route from the front door to the bedroom, the route to the balcony, and the door swing of anything that opens into the room.

Two practical rules of thumb hold up well in condo layouts:

• Walkways: keep a clear route of roughly 75–90cm wherever people walk past the sofa. Below about 60cm, a route stops feeling like a route and starts feeling like squeezing past.
• Wall proportion: a sofa that takes up around two-thirds of the wall it sits against usually reads as balanced. A sofa that runs wall-to-wall makes a small room feel smaller, not larger.

Then measure the gap to the coffee table. Around 40–45cm between the seat front and the table edge is comfortable for reaching a cup without the table blocking your knees. If the room cannot give you that gap plus a walkway, the answer is usually a shallower sofa — not a smaller coffee table.

WIDTH: HOW MANY PEOPLE, REALLY?

Catalogue labels — "2-seater", "3-seater" — describe the number of cushions, not the number of adults who will sit comfortably. As a working figure, allow roughly 60–70cm of seat width per adult, then add the arms. A sofa sold as a three-seater with chunky 25cm arms can have less usable seat than a two-and-a-half seater with slim arms.

This is one of the quiet advantages of building to measure: arm width is a design decision, not a fixed spec. In a tight room, slimming the arms by 10cm each side gives you 20cm of seat back without moving a wall.

DEPTH: THE NUMBER THAT DECIDES HOW YOU SIT

Seat depth — front edge of the seat to the back cushion — matters more than overall depth, and it should follow how you actually use the sofa:

• Upright sitting, conversation, working on a laptop: a seat depth of roughly 52–58cm keeps your back supported with your feet on the floor.
• Lounging, legs tucked up, watching films: 60–70cm or more.
• Two people of very different heights: a medium depth with loose back cushions, so the shorter person can add a cushion behind them rather than perching.

Overall depth adds the back frame and cushions on top — commonly another 25–35cm. A deep lounging sofa can easily reach a metre front to back, which in a 3.5m-wide condo living room leaves very little for anything else.

SEAT HEIGHT AND THE CEILING

European catalogue sofas typically sit at about 43–47cm from floor to seat. Korean-proportioned pieces are often lower, around 36–40cm. A lower seat makes a room with standard condo ceiling heights feel taller, and it suits people who like to sink back — but it is harder to get up from. If anyone in the household has knee or hip trouble, a firmer, higher seat is the kinder choice. We explain the Korean approach in more detail in Korean style sofa Bangkok — why the aesthetic works.

L-SHAPE OR THREE-SEAT?

An L-shaped sectional seats more people per metre of wall and turns a corner into seating. It also commits the room: once the chaise or return is on one side, the layout is fixed, and it blocks whichever side it sits on.

• Choose an L-shape when the room is wide enough to keep the walkway clear on the open side, and when the corner it fills would otherwise be dead space.
• Choose a straight sofa plus one armchair when the room is narrow or has doors on several walls. Two pieces can be rearranged; one L cannot.
• Consider a modular sectional only if you expect to move flats — modules can be reconfigured, but they rarely fit any one room as well as a piece built for it.

MEASURE THE ROUTE IN, NOT JUST THE ROOM

This is the step most often skipped, and in a condo it is the one most likely to cause a problem on delivery day. Measure:

• The service lift: door opening width and height, and the interior depth and height of the car. A long sofa often travels standing on end, so the interior height matters as much as the depth.
• Every door on the route: the opening with the door fully open, not the frame.
• Every corridor corner: the width of the corridor on both sides of the turn. A sofa that fits a straight corridor can still jam on a 90° bend.
• The unit's front door and any internal door between the entrance and the living room.

A useful check: the sofa's depth and height (not its length) are what must pass through a doorway. If either is larger than the door opening, the piece needs to be designed to split — a detachable back or arms, or a sectional built in sections. On a commissioned piece this is decided at the drawing stage, which is far cheaper than discovering it in the lobby.

THE BUILDING HAS RULES TOO

Most Bangkok condominiums require deliveries to be booked with the juristic office, restrict moving furniture to certain hours, and require the service lift to be used and protected. Some ask for a deposit against damage to common areas. Check with your building before a delivery date is fixed. If you are renovating as well, our condo renovation page explains how we handle the juristic approval process on your behalf.

A FIVE-MINUTE CHECKLIST

• Clear walkway of 75–90cm on every route past the sofa
• Sofa width around two-thirds of the wall
• Seat depth chosen for how you sit, not for how it looked in the showroom
• Seat height checked against the least flexible person in the household
• Lift, doors and corridor corners measured — sofa depth and height both pass
• Delivery booked with the juristic office

If the numbers do not add up for any catalogue sofa, that is usually the point at which building to measure stops being a luxury and becomes the practical answer. Our custom sofa page explains how a made-to-measure commission works, and our upholstery guide covers choosing a fabric that survives Bangkok's climate.