Hi there.... I have a dog gate on my deck, the same one we use indoors as well (picture below).
We have been using it for a year since we got our first dog (Foster- a 1.5 year old, 55lb Australian Cattle Dog/Australian Shepherd/Lab? mix), and several months ago he ran so hard into it as a cat strolled down the driveway that he busted it down and got loose! Luckily we caught him pretty quickly and it never happened again.........until this weekend. My hubby and I were sitting on the deck with the two dogs as we do every weekend in the morning drinking coffee.. and then the mail-woman came. I've been making it a habit to grab him and let him know "I got it" anytime he barks at people passing by so as to correct him. My husband thinks I over exaggerate and that he "can't break it down again"... but, he did...... I couldn't get to him to correct him as I usually do in time before the door flew open, he went running and our new 3 year old Australian Cattle Dog/Corgi rescue dog followed after him. I'm super glad the super freaked out mail-woman didn't mace him... he had no interest in her, he ran up, sniffed her for a second and then continued trotting down the street with his little big-new sister behind him.
My husband walked calmly behind them until I came with the car (they went about 2 blocks and stayed on the sidewalk the entire time thankfully) and scooped the two dogs and my husband up.
We are going to have a wooden gate attached to our deck installed maybe next month, but I am looking for a quick fix so that I don't have an anxiety attack any time I sit outside with the dogs! Foster runs with us about 3-5 miles a day so he is very muscle-endowed and strong... my husband tries to prove to me that the gate is secure by pushing his own weight into it... yet somehow when Foster tries once, he busts it through! I don't want him to learn that the door will open if he runs hard enough... he is a very smart dog but thankfully he hasn't caught on to that yet... both times were accidents as far as he is concerned.
My idea for quick-fix right now is bungee cords.... thoughts? I should also mention that we use the dog door daily (we meaning us Humans!) as we use the side-door to get in/out of the house since it has the deck/extra dog door for security in case a dog wants to try to slip through our legs. So it has to be something that can be unlocked/locked at least 6x a day between us going to work and going out for walks/runs.