Coffee Table: The Right Height and Size for the Sofa

The height follows the seat

As a rule of thumb: the tabletop sits level with the seat or a few centimetres below it. With a typical seat height of 42 to 45 centimetres (16.5–17.7 in), this gives a table height of between 35 and 45 centimetres (13.8–17.7 in).

The reason is practical. If the top is higher than the seat, you have to raise your arm to put something down, and the table visually blocks the sofa. If it is considerably lower, you have to lean forward for every glass.

The seat height is measured from the floor to the top of the seat cushion, with someone sitting on it. Soft upholstery gives two to three centimetres (0.8–1.2 in), so that a sofa is lower when sat on than the figures in the data sheet suggest. Anyone who knows this value can name the suitable table height in one sentence. What matters is which sofa stands in front of it, not which table looks most beautiful on its own.

Deep lounge sofas with seat heights of around 38 centimetres (15.0 in) are an exception. There a table of 40 centimetres (15.7 in) already looks high, and a low top of around 32 to 35 centimetres (12.6–13.8 in) fits better.

The length: about two thirds of the sofa

A coffee table that is exactly as long as the sofa looks like a second bench. One that is half as long looks lost. Two thirds of the sofa's length is the proportion at which the two belong together without mirroring each other.

With a two-and-a-half-seater of 180 centimetres (70.9 in), this comes to around 120 centimetres (47.2 in) of table length; with a three-seater of 210 centimetres (82.7 in), to about 140 (55.1 in). In each case, this means the total length of the sofa including the armrests.

With shorter sofas it gets tighter. In front of a two-seater, a square top with sides of about 80 centimetres (31.5 in) often looks calmer than a long rectangle that runs beyond the edge of the sofa. As a rule, the table should never be longer than the sofa.

Depth matters as well as length. A depth of about half to two thirds of the length of the top has proved its worth – a length of 120 centimetres (47.2 in) therefore suits a depth of 60 to 80 centimetres (23.6–31.5 in). If the top is deeper, the rear half can no longer be reached from the sofa.

The distance: 40 to 45 centimetres (15.7–17.7 in)

This is the distance at which you can reach a glass while seated without getting up, and can still walk past the table without turning.

Less than 35 centimetres (13.8 in) blocks the way and makes getting up uncomfortable. More than 50 centimetres (19.7 in) means leaning forward for everything – and visually the seating group falls apart, because the connection between sofa and table is missing.

On the other sides of the table, other values apply. If a route through the room runs past there, at least 60 centimetres (23.6 in) should be left clear, ideally 80 (31.5 in). Otherwise the coffee table becomes an obstacle you squeeze past every time.

Round, rectangular or square

The shape follows the layout of the seating group. A rectangular table picks up the line of a long sofa and looks natural there. In front of a short sofa, the same shape quickly gets out of proportion.

Round and oval tops have no corners that project into the walkway. That makes them the calmer solution in narrow rooms and in front of seating groups arranged around a corner, because you pass in the same curve at every point. They do, however, lose usable surface: a round top offers around a fifth less area than a square one with the same side length.

Square tables are the compromise for short sofas and for seating groups of two armchairs in which no direction dominates. In households with small children, rounded or chamfered edges are the more practical choice, regardless of the basic shape.

One table or several

A single large table is the calmer solution and takes a single arrangement – a bowl, a book, nothing else.

Nesting tables are more flexible. Sets of two or three are usual, with tops graduated in length. If the tables are to slide into one another, they also have to be staggered in height; a difference of around five centimetres (2.0 in) between two elements is enough for this. Sets of uniform height, by contrast, stand side by side and together form a continuous surface.

The advantage becomes clear with seating groups arranged around a corner, where a single rectangular table is always in the way somewhere. Several small tops can be placed as a group in front of the sofa or distributed around the room, for instance as a surface next to an armchair.

The drawback: three tables mean three edges, three surfaces and more visual clutter. In a small room, a single piece is almost always the better choice.

What weight has to do with the decision

A coffee table is moved when vacuuming, turned when rearranging, pulled aside when guests come. That is why weight is part of the question of size.

Frame constructions of wood or metal with slender legs can usually be lifted by two people without effort. Solid tops of stone, concrete or a single piece of natural wood weigh many times as much and easily come to 50 kilograms (110 lb) or more. Such tables are set up once and then stay where they are. Both are fine; it should just be clear before buying.

Anyone who moves the table regularly should also look at the feet. Felt pads under each leg prevent scratches on parquet, and on a rug wide feet sink in less deeply than narrow ones.