IT really depends on how agile the dogs are. My dearly departed Luke was a border collie/ golden retriever mix, mostly golden. He was quite agile and sailed on several boats I owned for years, was able to jump from the dinghy
to the deck on his own and was very good at sea. But, he was raised on boats since he was a pup, some dogs will take to it, some won't, some even will suffer from seasickness. With Luke I did not need netting, he was very good, even in heavy weather
and knew where to be on the boat for his own stability, on the other hand a friend of mine's labs were not as secure on his boat and the netting worked well for him. Many online companies sell netting for batting cages and sports applications, it's the same UV resistant netting sold by certain boat stores but much cheaper. Black with 1" squares works really well, I've had to put it on my current
boat since my wife and I have a 3 and 5 year old sons who sail with us, it's stood up well to both UV and weather
, affordable boat in that range is a Catalina 30
, there are thousands of them and some of the later models had the stern access, even if you can't afford the later models the deck height is low enough to get the dogs on and off the boat from a dinghy
without much drama.
The cockpit is large, the decks are wide enough, the below deck accommodations are spacious for a 30 footer and the sailing characteristics are forgiving. They are simple boats to sail and have decent performance. Best of all, sails
due the number of them out there and Catalina's support is excellent.
Did I mention affordable?
Have you sailed with your dogs on other boats? It might be a good idea to try it first then make your own decision.