Read all reviews before assembly. I found it easier to assemble one section at a time to the structure as opposed to building the whole slide and mounting as one piece. Some of the holes will not line up easy. It sometimes helps to tighten neighbouring bolts just to bring the slide edge closer together for those difficult holes and/or use a screwdriver to massage the holes in line. Because the posts of our structure were wider than the suggested 7 ft. deck, I just shaved the top of a 2x4 cut to size to fit the support bracket. I actually made two supports for the slide using the included bracket for the bottom section and using a sturdy L bracket attached to a longer, mitred support for the next section. Hope this info helps. Have fun