Roll Arm Vs Square Arm Sofa . Lower arm heights (6 inches or shorter) are less ideal for leaning against. Lawson sofas are similar in design, though their arms tend to be square and their upholstery tends to be more stuffed. Pottery Barn Comfort Sofa Reviews 5brainsurgries from 5brainsurgries.blogspot.com The look can range from bucolic mountain lodge. Let’s look at some more english roll arm sofas, the best sofa, from george smith. Featuring with 2 toss pillows.