The site ground for my pier is essentially solid mountain rock, can I attach the pier directly to bolts drilled into the rock?
Yes. After digging down to the solid rock, you will need to drill three one-inch diameter holes in the rock, using the bolt pattern template, that is included in the mounting hardware, as your reference. These holes will need to be drilled approximately 3 1/2″ deep. Next, fill holes 2/3 full with a good, high-quality, industrial epoxy. Then, set the bolts in place, using the bolt pattern template to hold the bolts on the correct bolt circle, until the epoxy is hard. We offer an excellent epoxy, which is so tough that a 3/4″ diameter bolt twisted off without the epoxy giving away. • Can you tell me why you recommend approx. 18″ diameter concrete footing for a pier when most everyone else says 3 or usually 4 ft.? 18″ sure would save a lot of concrete if its adequate! Our concrete footing is 18″ diameter by 48″ deep. We require 18″ diameter because our piers’ base plates are usually 14″ diameter. We recommend 48″ deep as it creates a better center of gravity for the pier. This is quite su
