Standard sofa dimensions
Most three-seater sofas are 1900 to 2300 mm wide, 850 to 1000 mm deep and 750 to 900 mm high, with the seat about 420 to 480 mm above the floor. Two-seaters are usually 1500 to 1800 mm wide, and a corner sofa often runs 2200 to 2800 mm along each side. Arm widths alone can change the width by 300 mm, so draw the exact model from its spec sheet. CAD Blocks (cadblocks.app) draws a sofa block from its photo at the exact size.
Typical sofa sizes
| Sofa | Width | Depth | Height |
|---|---|---|---|
| Armchair | 750–1000 | 800–1000 | 750–1000 |
| 2-seater | 1500–1800 | 850–1000 | 750–900 |
| 3-seater | 1900–2300 | 850–1000 | 750–900 |
| Corner sofa | 2200–2800 each side | 850–1000 | 750–900 |
Sizes are typical ranges in millimetres, not standards. Seats are usually 420 to 480 mm high and about 500 to 600 mm deep.
Space around a sofa
A common rule of thumb is about 450 mm between the sofa and the coffee table, and about 900 mm for a main walkway. Check that the sofa fits through the doors and up the stairs: measure its depth and the diagonal of the doorway.
Need the exact sofa? Draw it from its photo
Add the product
Paste a link to the product page, or drop in a photo, a screenshot from the maker's website or a PDF spec sheet. You can add up to four images of the same item.
Give the size
Type the width, depth and height from the spec sheet. Every view is fitted to those three sizes, so the plan and both elevations agree.
Download the DXF
The plan, front and side arrive as three named blocks, drawn true size in millimetres or inches. Insert them into your drawing.
Blocks for living room layouts
The free sofa blocks come with the plan, front and side. For a specific sofa, add its photo or the product link and its size, and the block is drawn to that size.
Questions
How long is a 3-seater sofa?
Usually 1900 to 2300 mm. Check the maker's spec sheet: the arms make a big difference.
How deep is a sofa?
Usually 850 to 1000 mm. Deep lounging sofas can be 1100 mm or more.
How high is a sofa seat?
Usually about 420 to 480 mm above the floor.
More guides
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