Cook Portable Warehouses uses the highest quality treated wood for our buildings. The superior value of these treated components (including the floor skids, floor joists, floor decking and siding) allows us to extend a lifetime warranty against structural damage caused by termites or fungal decay on all exposed wood components. So, if any of these components of your Cook shed are damaged by termites or fungal decay, we will repair or replace the damaged parts for free.If you find any same-size building offering all the Cook features listed on this page at a lower advertised price, now, or even up to six months following your purchase, we will be happy to reduce our price by 50%. It is the only guarantee you will ever need. No other building manufacturer can offer such a bold guarantee because no one builds a building like Cook. Look at the rest and then come back and buy the best at a guaranteed price.