Welcome to Hidden Valley Storage Barns. All of our Storage Barns come standard with 4x4 pressure treated runners, 2x4 pressure treated floor joists, and our Advantech flooring with 50 year warranty. The Garage floors are 4X4 pressure treated runners with 2X4 pressure treated floor joists 12" on center and Advantech 50 year flooring. We use R-10 vapor barrier under all of our roofs . Its not affected by moisture and humidity, forms an effective wind and vapor barrier, reduces any building condensation. Also reduces heat loss in winter and heat gain in the summer. Metal buildings are also maintenance free and paint free and have been proven to withstand 70 mile per hour winds. Call today for more information!