25 vs 30 ft width isnt going to do too much for you as far as room for parking things. 25 is enough to park 2 boats side by side and not be cramped, plus you can install one 20 ft wide door. The extra lemgth from 45 to 61 ft might make a big difference. I went 25 x 51 x 16 and am happy, but could use 10 more feet.
Comsider 16 ft ceilings so you can imstall a 14 ft tall door and park almost anything you want to imside.
It will never be big enough..
You have to at least go 15' ceiling and have a min. 14' garage door.
Depending on what you plan to do 61' deep will let most boats and leave the truck hooked up.
Go as big as you can is what I found out.. Unfortunately I did 12' door
, and should have gone 10' more width at least and 5' longer.
Cant change it now.
go big or learn to go big...