Terminal Boardom Wimb Cheers for that TB, might well give that book a read.
I guess the irregularity of most stadiums came as they were developed ad-hoc, so you used to end up with 1 odd shaped developed stand etc.
I still can't comprehend what it must have been like standing on such large banks of terracing. Must have been awesome yet frightening at times!
Inglis has written three books on British football grounds and in the first, published in 1983, he described Elm Park as being the least interesting ground in the Football League. For large banks of terracing, they didn't come much bigger than the old East Terrace at The Valley. The picture I posted earlier shows it in its "glory"

The second of his books was more or less the same as the first, but with Scottish Grounds added.
He also did one about European Football grounds, as well as a slightly odd one featuring big chapters on just a few grounds wordwide, as well as trying to get round all the football grounds in Buenos Aires in one day (there's something like 21 of them).
He also did a book all about Archibald Leitch and his grounds. Sadly old Archie doesn't make the most interesting of subjects himself, but loads of great pictures of how grounds looked in the old days.
It's amazing how much larger grounds look with terracing than with seating, even when both are the same size. Think back to St Andrews for example. That two-side stand curving round from opposite the away end to opposite the main stand doesn't look all that much now, but when it used to be terracing, and the same size, it looked huge.