Built for big dogs this 48 in heavy duty metal dog crate uses a welded steel frame where each bar is fixed to the structure for strength. Measuring 48.4 in long by 29.1 in wide by 34.6 in high it offers 2 in bar spacing for airflow plus a front and top door with latches. A slide-out tray and floor grate make cleanup fast while four lockable caster wheels move the kennel for large and extra large dogs up to 88 lbs.