Shake the whole sofa with both hands. If it feels good, it means that the border is firm. Then discuss with the sales staff and uncover a corner of the seat bottom cloth. If it is made of smooth and hard miscellaneous wood without decay, moth-eaten, scars, bark or wood threads, there will be no problem if the joints between materials are interlocked with tenons or notches instead of nails, and then glued firmly.

Look at the quality of the inner pad.

At present, the bottom surfaces of high-grade sofa seats and backrests mostly use nylon belts and snake springs, and high-elastic foam, rubber-sprayed cotton and light foam are laminated on them. This kind of cushion has good elasticity and comfortable sitting feeling. Mid-range sofas are mostly based on bonded fiberboard and back, with medium density foam and glue-sprayed cotton laminated on them. This kind of cushion feels hard and has poor resilience.