How tall are you?
"Standing headroom" is going to be different for different people... I have a '78 H25, and at 5'8", I'm about 2 inches too tall to stand in the main cabin. I can, however, stand under the sea hood with about 3/4" to spare. More food for thought; About a year ago, I upgraded from an H23 to the H25. There's a WORLD of difference between these two boats, and I HEARTILY recommend the up-size, but the earlier post was also correct- I really wouldn't consider this boat to be trailerable. In fact, if I were looking for a trailer boat, I'd go with something that has a swing keel and water ballast, like a H26 or 260. Good luck in your search,--Jon BastienH25 'Adagio'