Yes! Mod-eez® fasteners are strong enough for the construction of chairs. The spring steel construction of a Mod-eez® fastener allows for a flexible joint strong enough to withstand the "racking" that can take place in a typical chair. Also, that big carton full of air can be shrunk down considerably if you decide to ship your chair unassembled. Mod-eez® can provide you with a stronger chair, and save you money on shipping and storage.