I have an 8 x 8 shed that has a ton of stuff in it and I am able to get 6 chairs and the table itself in the shed. Got tired of the chairs with cushions on them as the take a lot of space up. We got our table at Lowes in Des Moines and chairs at Lowes in Ames. We do have an umbrella in the table. How big is your shed?
Mower, table saw, tiller, 30 tomato cages, hose reel, sleds, day care toys, generator, along with our front entrance table and two chairs. We hang our bikes in the garage even though I had one in there last winter.
Depending on your shed, I’ve seen mold and mildew on things in ours as it does have a 4” ventilation screen. I would worry about cushions getting it on it. Just my 2 cents.