Construction Details Materials Construction Details When our structures stand a close order inspection, the craftsmanship and care become apparent.   Each of our pieces is handcrafted; incorporating the joints and methods applicable to the furniture trade in their construction. In addition, each piece is carefully inspected before leaving our premises. Some of the more unusual details that we incorporate in our work, not normally found in the construction of garden arbors, are mortise and tenon joints, splined joints, channel dadoes and dowel pins. These methods allow for positive and secure registration of subparts into a strong and unified structure.     The arches are assembled with three very strong three inch dowel pins, in every joint, using 100% waterproof glue. Our system of utilizing very strong rust proof aluminum pipes, as a method for securing the arbor to the ground, will last through the ages. The aluminum pipes are completely hidden and fit within the arbor post. Please review our Installation section for further information about installing the arbors.