Three-drawer vertical letter-size 31" depth UL Class 350 two-hour fire / impact rated filing cabinet with one high-security UL listed keylock top drawer to control all drawers. UL 2-Hour Class 350 Fire Rating, produced with Thermocell II for added protection from fire. Exterior dimensions: 42 13/16" H x 19" W x 31 3/16". Limited Lifetime warranty with free replacement after fire guarantee.