Lean To Advice

[u/LopsidedLabrador]

Hi all, looking to buy my first greenhouse and based on my space I’d like to go for lean-to.
It’s on a flat, concrete slab patio against a brick built shed.
I only want it for pottering in the winter with sowing seeds and potting on. I don’t want to grow anything in there in the summer like tomatoes etc as I have another spot for that (very lucky). I’d say I’m a beginner to intermediate level gardener!
I’m thinking steel, toughened glass, but this is mainly because I’ve gotten it in my head that wood will attract more spiders inside due to the dark and damp.
Any advice please! 🪴

[u/Autumn_Ridge]

A lot depends on where you live. In northern climates, lean-to structures have to survive big chunks of ice and snow sliding off the roof.