Abstract: A modular self-locking chair comprising of two vertical frames each comprising of a flexible joint attached at the top of the first and second vertical frames. Additionally, the present disclosure may include two horizontal frames where each horizontal frame may comprise of two joint frames and an indentation on an intermediate underside section of one horizontal frame and the other horizontal frame may have an indentation on an intermediate topside section. Furthermore, a horizontal frame may attach to one of the vertical frames and the other horizontal frame may attach to the other vertical frame to form two leg assemblies. A backrest may comprise of one or more latches attached to the back section of the backrest, a seat base with two or more half-lap joints attached to the underside section of the seat base, and a bow-shaped joint which may attach to an underside section of the seat base.

Abstract: A modular self-locking chair includes two vertical frames comprising of a flexible joint attached at the top of the first and second vertical frames. The chair may include two horizontal frames each including two joint frames and an indentation on an intermediate underside section of one horizontal frame and the other horizontal frame may have an indentation on an intermediate topside section. Each horizontal frame may attach to one of the vertical frames to form two leg assemblies. Aspects of the present disclosure may include a backrest that may include one or more latches attached to the back section of the backrest, a seat base with two or more half-lap joints attached to the underside section of the seat base, and a bow-shaped joint which may attach to an underside section of the seat base.