Wallacia 2745 NSW 7.5 m Megatron. This is, as you can see, quite a large octagonal gazebo built onto the lid of an inground concrete water tank. Took us a full 9.5 hrs to build on site. One of the challenges is transporting the pre fabricated unit. The results of all the hard work are worth the effort. First one we have done in oil stain. Very happy with how it looks and its durability.