Reinforced wooden panels bolt to steel bars in this heavy duty kennel, giving a 31.5-in by 21.5-in by 22.5-in shell that weighs 42.5 lbs assembled. Tight joints between panel edges stop the body from racking when a dog leans hard against one flank. A barn-style door rides an overhead track, so opening it needs no clearance out front and a narrow corridor still suits the piece. Adjustable knobs draw that door flush and hold it there. Slatted metal panels on both flanks keep air moving past a resting dog, and the gray laminate shrugs off scuffs from paws and leashes.