A friend of ours had one for several years. It was attached to the decking with screws. Then a strong wind storm blew it off, damaging the decking, railing and siding on a neighbors home.

Structurally the portable gazebos are generally weak. So, based on this experience, my suggestion would be for the large umbrella which could be collapsed and/or put away when not in use.

THanks. That's what I was thinking but I wanted to make sure.

Some tarps like they have at Home Depot or Shade cloth- they come in 6 ft by 20 ft or larger rolls but don't hang well. I got a large tarp 10ft by 12 ft I think it was & attached it to cover large concrete area ran wires to top of fence & corner of house. Then used it 2 summers worked very well. Cost $20. breeze could go under it, as long as keep it taunt it works well,could attach to house & cement in couple of electric conduit poles with hole drilled through near top for heavy wire to hold tarp in place. Some magazines have triangle shape sunshades you might be able to use. If these things come loose not likely to hurt much. Or you could run a couple of redwood extension pieces up on 1 side of deck with piece of wood across the top & hang a bamboo shade on side to block out most of sun.Use cup hook type hangers(but larger for outside use) so easy to remove. Good Luck!