From the floor surface up, our gazebos are built with #1 graded southern yellow pine lumber. To maintain the longevity of our products, all lumber is pressure treated. Skids are included with the gazebo and include extra treatment suitable for ground contact. We value a clean, finished look as well as a strong hold on all the joints in our gazebos, for this reason, we use screws in most visible locations and wherever pull-out risk is high. Nails are used where shear strength is important. Finally, to ensure your satisfaction for years to come, we offer an extensive variety of finishes and sealers for additional, long-lived protection and beauty.