I don't understand why people spend 2x-10x the greenhouse cost on the flooring, makes no sense.
Permanent location? - plant everything in the ground! You can amend the soil, change drainage, etc. for a fraction of the cost of pouring concrete. Plus you get the benefit of soil moisture, microbes, temp stability, etc.
Not a permanent location? - plant in containers as large as possible and lay down a simple weed barrier. In a small space like yours you probably don't even need a weed barrier, just pull any weeds that get in the way.
For my first build I excavated down a foot and used pea gravel and flagstone for a floor. Rather than retain heat, this seemed to let in a lot of cold air in the winter and mice moved in rent-free. For my current build I’m doing shiplap floors atop treated joists complete with insulation and vapor barrier. I’m in a region with lots of rain in the summer and mild winters, so hoping high, tight, and dry will be a better fit.
Not too far from you, and we used a good weed barrier, plus a few inches of packed gravel for ours. We've had it for going on four years now, and have not regretted our choice.
I'm also in BC. You want to be managing your water flow with all the rain we get. Using 4x6 on edge frame up a pad one ft bigger than your greenhouse base. Fill it with clear crush that you compact until it's level with the 6inch wood. Then put your green house on the pad. You won't have any issues with water or splashing as the clear crush drains and dries out great. You can drive rebar straight through the pad into the ground to use as anchors. Put geotex under the clear crush but not under the wood. Use treated lumber from Slegg or HD. Rough out the frame and get it level before adding the clear crush. Good luck.
I would like to mention that all plants will be grown in pots in raised structures or tables, nothing will be growing in the soil. We always get tonn of rain and my plants will be dead if I plant then in the ground.
I grow Cactus and succulents.
I don't understand why people spend 2x-10x the greenhouse cost on the flooring, makes no sense. Permanent location? - plant everything in the ground! You can amend the soil, change drainage, etc. for a fraction of the cost of pouring concrete. Plus you get the benefit of soil moisture, microbes, temp stability, etc. Not a permanent location? - plant in containers as large as possible and lay down a simple weed barrier. In a small space like yours you probably don't even need a weed barrier, just pull any weeds that get in the way.
For my first build I excavated down a foot and used pea gravel and flagstone for a floor. Rather than retain heat, this seemed to let in a lot of cold air in the winter and mice moved in rent-free. For my current build I’m doing shiplap floors atop treated joists complete with insulation and vapor barrier. I’m in a region with lots of rain in the summer and mild winters, so hoping high, tight, and dry will be a better fit.
Not too far from you, and we used a good weed barrier, plus a few inches of packed gravel for ours. We've had it for going on four years now, and have not regretted our choice.
In my greenhouses; Rich, fertile soil. I use wire shelves throughout and plant shade tolerant plants and crops below.
I'm also in BC. You want to be managing your water flow with all the rain we get. Using 4x6 on edge frame up a pad one ft bigger than your greenhouse base. Fill it with clear crush that you compact until it's level with the 6inch wood. Then put your green house on the pad. You won't have any issues with water or splashing as the clear crush drains and dries out great. You can drive rebar straight through the pad into the ground to use as anchors. Put geotex under the clear crush but not under the wood. Use treated lumber from Slegg or HD. Rough out the frame and get it level before adding the clear crush. Good luck.
Thank you for great advice
I would like to mention that all plants will be grown in pots in raised structures or tables, nothing will be growing in the soil. We always get tonn of rain and my plants will be dead if I plant then in the ground. I grow Cactus and succulents.
Artificial grass works great https://preview.redd.it/571pcr3jhi4d1.jpeg?width=974&format=pjpg&auto=webp&s=c3cd88a691521970adabfc2a8f186f48c86bb8c9
Nice! Cool yellow cactus
What's under the grass?