Okay the good, the bad, the ugly. This is a SOLID greenhouse no doubt about it. However, the design for assembly rates a C from our carpenter. The instructions make it seem like it is 4' centers, however, it does not take into account the polycarb H channels. When you install those, it takes away 1 1/2" in width. This is VERY important, because EVERY side panel must be custom cut on the long end in order to fit. IF we had known that in the beginning, we would have added that measurement to create a true 4' center. We would have installed the footing, the ponywall, and the ribs based on 4' 1 1/2".
When you cut the panels, it removes the factory bevel edge and leaves a sharp rough edge. This is VERY important because the bevel is needed to get the panel INTO the H channel. With the rough edge, you have to pry it in and believe me this is a B!tch. You are up on a ladder trying to pry these into the channels and it is precarious. Paul fell off the 10' ladder and luckily didn't break anything. At that point, I went and rented a scaffold and our contractor hired two more men to help. There is NO WAY this can be done by two people the way it is engineered.
Another thing is that it is sold as a kit, but kit is a loose definition. Kit means they assembled the parts and everything you need to put it together. BUT you need some serious skills and tools to build it. I say build, because there is serious measuring and cutting involved. The curved tubing is pre-sized, however, all of the other framing has to be measured and cut. No holes are pre-drilled in the metal framing. I also say serious skills, because you have to measure 3 times. There is no room for error because it is metal. You can't just run out and pick up another rib.
You need a 4 1/2" cut off grinder, reversed-blade circular saw (to cut the poly), a BIG hammer drill and concrete bit, 2 other hammer drills for the metal (you are up high, so having 2 drills set up keeps from having to change out bit and driver), prying tools (thin-bladed scrapers worked best), 10' scaffolding, 2 10' ladders, and some serious manpower. I also recommend someone who is familiar with metal building to lead the assembly.
We are almost done (missing a part). Ready for electrical and HVAC.
