Every Cook Portable Warehouse is built from pressure treated materials. The pressure treated lumber we use enables Cook to extend a lifetime warranty on every building against decay or termite damage. Simply stated, if the pressure treated lumber in your Cook Portable Warehouse is ever damaged by decay or termites, Cook will replace the damaged lumber free of charge. Lofted Barn The Lofted Barn has the most cubic feet of storage space offered on Cook buildings. The 6'2" sidewalls offer plenty of headroom, and, with a loft overhead, your floor space can be kept clear for larger items. The Lofted Barn is for those of you with lots of stuff! Available Options: Raised Loft Height Heavy Duty Floor Shutters & Flowerbox Door Options & Placement Various Window Size Options