Gasser pointed out that bolting the chair joints means repairs can often be performed by the club's maintenance staff. In their metal seating line, Gasser uses an assembly process that involves a locking system - the same basic principle as a bolt or screw. This system also allows for on-site repair of loose joints. Gasser said that firmer foam will make for a more comfortable chair based on that material's ability to adhere to the shape of the body. When springs are used in chairs, they should ideally be tied down and locked in to eliminate moving and shifting.
Some manufacturers use a zig-zag spring.
To meet the challenge of creating quality chairs, Falcon Products, in St. Louis, MO. primarily uses hardwoods like maple, beech, oak, and alder. It also depends on the style of chair they're ordering. Heusler said that when it comes to comfort, the arm height and the pitch of the chair back are two important considerations. The further back the pitch, the easier it is to relax in a chair. If upholstered chairs are what you are looking for, you'll have to choose between fabrics or upgraded vinyl.