A laboratory table has a frame with a front frame part and a rear frame part and replaceable tabletop elements positionable on the frame. A detent rail is arranged on the front or rear frame part, having detent openings. Each of these detent openings is for the insertion and sliding guiding of a detent bolt of a tabletop element. In addition, the tabletop elements has at least one detent bolt for insertion and sliding guiding in one of the detent openings of these detent rails. Each tabletop element has at least one fixing mechanism, which is spaced apart from the detent bolt, and which fixes the tabletop element in a locking position and holds the detent bolts, which are guided parallel to a plate axis of the tabletop element in the detent rail in a fixing position.