Dave, I think you are pushing the limit a little on the 10 degree figure. You may be right as I have never had to push it to that limit. It's just what the manufacturer claims for it. I have had to count on it for some 26-27 degree nites and had no problems. As to the control of dirt/ground insect access with it, weed barrier and careful tucking of the Reemay around the base of the plants eliminates most of that for me. But even without that block you have eliminated all the air access and so cut the potential problems by 2/3. ;) I can't even get that with double plastic layer on a greenhouse. Air chamber double-wrap still doesn't give you 10 degrees? That's good to know. I realize you're way north of me and your greenhouses are quite a bit larger than my small 10x20' one so the cost might be prohibitive for you, but have you considered the bubble-wrap blankets? We bought ours from Farm Tek Supply at a good price and it's on its 5th year with only a few tears. With no or little wind I can get 20 degrees difference inside to outside temps with it. Just a thought. ;) Dave

Thanks for finding that photo, Elphaba (shown below). That helps answer my question because I don't like how wide those shelves look over the toilet. I also don't like how narrow the ones are in my 2nd photo above (exact width of toilet). So, I need something in between toilet width and 30." I plan to use these shelves mostly for products that I use either in or right after the shower (shower gels, scrubs, creams). These are products with really nice containers and/or labels that I picked up in France and elsewhere, so they are decorative. The shelves are also functional in that they keep non-everyday items out of the shower. [Traditional Bathroom[(https://www.houzz.com/photos/traditional-bathroom-ideas-phbr1-bp~t_712~s_2107) by London Interior Designers & Decorators Hammett Interiors

See link below...per Wiki. Here is a link that might be useful: Laminate flooring

Thank you for your responses. We haven’t purchased anything yet, and we’re not convinced we found the right one yet. But here are some pictures. This is the one from Room and Board that we kind of like.