To calculate the correct size couch or sofa to suit your space:
Measure the area where you intend to place your couch.
Measure the width of your door.
Subtract 2 inches to get the best height.
Using the measurements above, subtract 24 inches to cater for the walking room and 12 inches for the width of the arms.
The above measurement is the maximum length of the seat of the couch. Adjust it to suit the closest of the standard couch sizes without going over.
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