Abstract: A farrowing crate is provided which has adjustable connecting structure for connecting the side walls thereof to the end walls thereof in various adjusted positions with the farrowing crate width at the top remaining constant and the width at the bottom being increased step-by-step as the side wall is raised. The side walls are constructed of tubular construction with a lower horizontal tube having pins welded thereto which are selectively engagable in apertures arranged at respective steps of stepped brackets attached to the end walls. The stepped brackets exhibit inwardly facing vertical step surfaces which restrain lateral outward movement of the side wall during the adjustment process. The upper tubular member of the side wall includes locking apertures. Upper brackets are attached to the upper parts of the end walls, which upper brackets form stepwise nesting places for the upper tubular member as well as apertures alignable with the locking apertures to accommodate latch pins.