Abstract: A post and beam furniture construction has a number of support posts and a plurality of beams that interconnect the posts. Accessories, including storage shelves and cabinets, and work surfaces are releasably supported by the posts at various positions relative to the shelf length and the post spacing. Support brackets interconnect accessories and posts. Each post has at least two accessory support rails extending along the post length. A support bracket engages a selected rail. Spaced support bracket receptacles extend along a length of the accessory and a support bracket engages a selected bracket receptacle. The beams may be removed from respective posts without moving the posts and may also be length adjustable.