By Adalheid Voigt. Industrial. At Friday, January 25th 2019, 00:56:15 AM.
The frame and all the corners should be well padded. Run your hand over them firmly to see. A padded frame will not stick out through the upholstery, it also means less friction for the fabric that is covering the frame. Check the sofa from behind, and pat the center to make sure it isn't hollow.
Just as in well-tailored clothing, patterns and stripes should match at the seams. Although it might not catch your eye right away, mismatched patterns or stripes will give you the sense that something is"off". Stripes that match at seams make a sofa look well finished. Patterns should be centered, and all seams and welts should run straight. Uneven welting and seams that are pulled to one side or another mean that the cover was badly tailored.
The back of a curved-back sofa curves all the way around so that it forms one solid piece with the arms, which are not attached separately. A pillow back sofa has more pillows than seat cushions, and therefore a softer feel. This style offers comfort that can also be adjusted by moving the pillows around. It does require more upkeep, though.