Pull Out Shelves By Shelf Theory designs, manufactures, and installs custom sliding shelves for homeowners across the Phoenix, Arizona region. We specialize in custom pull-out shelves for kitchens, pantries, bathrooms, and more.At Shelf Theory, our meticulous craftsmanship comes with a lifetime guarantee. Enjoy both quality and savings with our factory-direct pricing. Get in touch to schedule your free in-home design consultation.