Thanks, Jim! Good to know about the mulch! I think right now, we are trying to be cost efficient with the plan of upgrading the flooring later (after recovering from the cost of building the thing 😂). I already have a weed barrier down, so that's good. Here in eastern NC, the weather is quite inconsistent. For example, it's 65 degrees right now...at 7am on December 28th. I'm a little concerned about baking things in the summer. But, I don't figure there will be too much going on inside the greenhouse during the summer.
My husband has done a great job! He even installed a solar panel and everything! Here are a couple more pictures of the inside...