Throw cushions usually have sizes of 45 cm, 50 cm or 55 cm. Those of 45 cm fit well for most chairs, sofas and beds. A cushion of 50 cm lines up with the back of the sofa while 55 cm projects a bit above it.
The size of 18 x 18 inches works well on many sofas and beds because it adds comfort and style without taking too much space
Cushion Sizes for Sofas and Chairs
Sizes and styles of sofas change a lot now, so there is no strict rule for cushion dimensions of sofas. Most commonly you use squares of 18, 20 or 24 inches with depth between 4 and 6 inches, although shapes and sizes can vary a lot. Typical sizes for cushion covers are 24×24, 20×20, 18×18, 16×16, 12×12 and 12×20 inches.
You can also choose custom ones. The mose common shapes are square.
For a small sofa or loveseat, a combination of 30×50 cm (12×20 inches) and 40×40 cm (16×16 inches) works well. Medium sofas fit cushions around 45×45 cm, 50×50 cm or 55×55 cm. For a big sectional sofa take 50×50 cm, 55×55 cm and 60×60 cm cushions.
Mixing them helps to make an attractive arrangement. A big sofa holds bigger cushions, for example 60×60 cm covers, while a small sofa looks nicer with small ones. The scale matters.
A standard two-seater sofa is between 180 and 230 cm wide. Two cushions of 50×50 cm, placed on the sides, give a simple and nice look. A two-seater can have 2 to 4 cushions.
Two cushions look more simple, while three give a modern style.
Cushions also come in round form, from 30 cm to 45 cm, and even 60 cm. Round cushions add style to a sofa or bed and give a new dimension to the decor.
Ideal cushions for seats on a standard sofa have 50 to 60 cm depth and 55 to 60 inches width. Sofa cushions are available 4 to 8 inches thick, in one-inch steps. First choose thickness, because chair cushions range from 2 to 5 inches.
Measure the whole width of the sofa from side to side.
Firmness is just as important as size. Medium foam works for cushions of 4 to 6 inches thick, while soft or hard options work better for thin or thick ones. Foam of 6.5 inches feels very firm, because thickness affects the feel even with the same material.
A slightly bigger foam than the cover helps it look full and tight, and Dacron wrapping helps too. When you cut cushion fabric, leave a half-inch seam margin at every edge.
Replacement cushions are cut to the size and filled with foam, fiber or feathers depending on the wanted feel of the sofa. Home sheets of foam of various thicknesses and densities help for sofas with saggy cushions. Precise measures guarantee that new cushions fit in the existingcovers.
