Sofa seat recommendations using a Castle Sofa example

Guide to Ideal Sofa Cushion Dimensions

What are the ideal dimensions for sofa cushions?

When it comes to choosing the perfect sofa, one of the most important factors to consider is the cushion dimensions. The right cushion dimensions can greatly affect the comfort and overall aesthetic of your sofa. So, what are the ideal dimensions for sofa cushions?

Seat Cushion Dimensions

The ideal seat cushion dimensions for a standard sofa range from 50 to 60 cm deep and 55 to 60 inches wide. These dimensions provide ample space for comfortable seating without feeling too cramped or too spacious. It's important to note that these dimensions may vary depending on personal preference and the style of the sofa. For people that prefer to use the sofa in a more laid back manner, generally deeper seats are preferred.

Back Cushion Dimensions

When it comes to back cushions, the ideal dimensions depend on the type of sofa and the desired level of support. For a standard sofa, back cushions are typically around 40 to 50cm high and 50 to 60cm wide. However, if you prefer a more relaxed and casual look, larger back cushions can be used.

Arm Cushion Dimensions

Arm cushions are an important part of sofa comfort and can also add to the overall style of the piece. The ideal dimensions for arm cushions are usually around 15 to 20cm wide and 50 to 60cm long. These dimensions provide adequate support for resting arms while maintaining a sleek and stylish appearance.


Choosing the right cushion dimensions for your sofa is crucial for creating a comfortable and visually appealing seating area. By following these guidelines, you can ensure that your sofa provides the perfect balance of comfort and style.

Last updated: 6th Oct 2023

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