Sofa

How to Choose the Right Sofa: A Practical 7-Step Guide

BUNISE · Sofa guide

Find the right size, layout, comfort and upholstery for your home.

Start with the people who use your sofa every day. Then check your room, compare how you like to sit, and look at the details behind the upholstery. This sofa buying guide helps you compare sizes, layouts, comfort and upholstery before ordering.

1. Choose the Right Size

How many people need a seat?

Use these approximate overall lengths to begin comparing straight sofas. All lengths include the armrests.

Two people

150–190 cm

Approximate overall length

Illustration example180 cm overall

Three people

190–240 cm

Approximate overall length

Illustration example220 cm overall

Four people

240–300 cm

Approximate overall length

Illustration example280 cm overall

Simplified illustrations of the same sofa design; lengths include both armrests. These are teaching examples, not measurements of a BUNISE product.

A starting point, not a seating guarantee. These overlapping ranges are an initial guide, not a fixed standard. Armrest width, usable seat width, body size and sitting preferences all affect how many people can share a sofa. Check the dimensions of the model and configuration you choose.

Overall length is not seating width

Overall length runs from the outside of one armrest to the outside of the other. Seating width is the usable space between the armrests.

For a simple example, a 220 cm sofa with a 20 cm armrest at each end leaves:

220 − 20 − 20 = 180 cm of seating width.

Divided between three people, that is about 60 cm each. This is a measurement example, not a promise that everyone will find it spacious. Allow more room when you prefer to spread out.

Measure the room, not just the wall

Measure the sofa area in both directions. Mark the proposed footprint on the floor, then check the main walking route, door swings, coffee table, TV cabinet and any side tables or lamps.

For example, a 340 cm wall with 40 cm reserved at each end leaves 260 cm for the sofa. You still need to check its depth and the space in front of it.

Your next step: Send us your available length and depth, together with a room photo or floor plan.

2. Choose Your Layout

Straight, chaise or modular?

Simplified top views in the same room footprint, for comparison only. The dashed green line marks a walking route to check. In the chaise diagram, the extended seat is on the right side of the plan when viewed from above. Confirm the viewpoint and direction on your order drawing; these diagrams do not show product dimensions.
Layout to compareStart here when…Check before choosing
Straight sofaYou want one seating line and flexibility for separate chairs or tables.Usable seat width and the route around each end.
Sofa with a chaiseStretching out is part of your daily routine.Which side the chaise occupies and whether its full depth blocks a route.
Modular sofaYou want to build a configuration around your room.The exact modules, total footprint, connections and finished sides.

Do not judge capacity by the number of cushions alone. A chaise for one person to stretch out on is not automatically an extra full upright seat.

Confirm the direction visually. A label such as “left chaise” can be misunderstood. Before ordering, confirm a plan-view drawing that shows which side the chaise is on and the viewpoint used.

Your next step: Pick a layout and check its footprint against your room measurements.

3. Find Your Comfort

Overall depth is not seat depth

A · Overall depth
The complete front-to-back measurement.
B · Usable seat depth
From the seat’s front edge to the back cushion where you sit.
C · Seat height
From the floor to the sitting surface.

Illustrative measurement definitions only. No universal ideal depth or height is implied.

Overall depth is the sofa’s complete front-to-back measurement. Usable seat depth is the space from the seat’s front edge to the back cushion where you actually sit. Seat height is the distance from the floor to the sitting surface.

Compare these measurements separately. Two sofas with the same overall depth do not necessarily offer the same usable seat depth.

Try the way you actually sit

For upright sitting, test the sofa with your back against the cushion and check how your feet rest. For lounging, try your normal relaxed position rather than judging from a quick sit on the front edge. Stand up again and decide whether the seat height and feel suit you.

When more than one person uses the sofa, compare it together. A cushion that suits one person may not suit another.

Softness and foam density are different. Density describes mass per unit volume; firmness describes surface feel. A higher-density foam is not necessarily harder. Compare the finished seat and the specification for the exact model rather than relying on a density number alone. [Source: PFA]

Your next step: Tell us whether you prefer upright sitting, relaxed lounging or a mix of both.

4. Choose Your Upholstery

Start with your household, not a material label

Your priorityWhat to compareWhat to ask us
Children or frequent spillsThe exact upholstery sample and its care instructions.Which cleaning method is suitable for this material?
PetsTexture, snagging concerns and documented performance for the selected fabric.What does “pet-friendly” mean for this specific option?
A removable coverWhich parts can actually be removed.Is washing permitted, and under which care instructions?
A leather finishThe leather type, surface finish, feel and colour sample.What routine care does this particular leather require?

Do not assume that “removable” means machine-washable, or that a material description guarantees resistance to every spill or scratch. Confirm the selected upholstery’s instructions before cleaning.

View the actual sample with the other materials in your room. Treat screen images as a guide, then confirm the final material and colour code for your order.

Your next step: Shortlist two or three materials and compare their feel, appearance and care requirements.

5. Match Your Room

Compare proportion before picking a colour

Look at the sofa’s outline alongside the other furniture you plan to keep: arm width, back height, base, visible legs and cushion proportions. Compare these features in the context of the room, not only in an isolated product photo.

For colour, start with the fixed finishes—flooring, curtains, rugs and existing furniture. Decide whether the sofa should blend in or become the focal point. Then compare upholstery samples in the room.

When comparing colour options, use the same sofa and viewing angle wherever possible. That makes it easier to decide whether you are responding to the colour or to a different shape.

Your next step: Save a room photo and one or two reference images that show the feeling you want to achieve.

6. What’s Inside Your Sofa?

A closer look at a real BUNISE construction example

Russian pine wood frame · Spring support · Foam cushioning

The construction shown here combines a Russian pine wood frame, springs and foam. The photographs show the frame and underside before the base covering conceals these details. You can see the timber members, zigzag-shaped springs, support webbing and foam around the exposed perimeter.

Underside of a BUNISE sofa showing timber framing, zigzag-shaped springs and support webbing.
Construction example supplied by BUNISE. The specified timber origin and cushioning are confirmed by BUNISE; the photograph does not show the complete seat-cushion build-up.
ComponentWhat this example shows or specifies
Russian pine wood frameThe specified timber frame for the construction shown.
Spring supportThe zigzag-shaped springs visible across the base.
Support webbingThe black-and-red straps visible alongside the springs.
Foam cushioningFoam is part of the confirmed specification; foam around the frame perimeter is visible in the photographs.
More frontal view of a BUNISE sofa frame showing a central timber member, corner reinforcement, springs and webbing.
The exact frame layout, cushioning and upholstery depend on the model and configuration. Confirm the specification for the sofa you select.

Ask about the complete specification

A construction photograph helps show details that are normally hidden, but it is not a substitute for the specification of your order. Ask which frame, support and cushioning are included in the exact model you are considering.

Your next step: Ask us to confirm the materials and construction for your selected sofa, rather than assuming every design uses the same build.

7. Check Before Ordering

Confirm the sofa and the delivery route

Your specification

  • Model and configuration
  • Overall length and depth
  • Chaise direction
  • Upholstery code and customisation

Your delivery route

  • Entrances, corridors and turns
  • Lift door and cabin
  • Packaged or delivery-unit dimensions
  • Parts that separate and reassemble

Your written terms

  • Final price and tax treatment
  • Estimated delivery window
  • Payment, delivery and installation
  • Warranty and care instructions

Before paying a deposit, check the model, configuration, overall length and depth, chaise direction, upholstery code and any agreed customisation.

Measure the complete delivery route: building entrance, lift door and cabin, corridors, staircase turns and the room entrance. Ask for packaged or delivery-unit dimensions, not just assembled dimensions. Where applicable, confirm which parts can be separated and reassembled.

Confirm what your quotation includes

Check the final price and tax treatment, estimated delivery window, payment terms, delivery and installation scope, warranty coverage and care instructions. Confirm any additional requirements—such as difficult access or old-sofa removal—before they become part of the order.

Your next step: Review the final written specification and service details together before approving the order.

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