The stadium doesn't hold 32k any more. We lost around 1,000 seats the last time we got promoted.
In the Warnock 2007 season in the PL.
Our last match to Wigan Athletic was an official sell out days before the match.....official attendance 32,605.
A few years later in 2020 under Wilder we played Man Utd.
That match was also officially sold out a few days before the match and was our highest crowd of that season....official attendance 32,024.
Don't think anything has changed since we were last in the PL 2 seasons ago, so would suspect our capacity is still around the 32,024 mark.
Although when we played Sheff Wed a few seasons earlier, those matches were also official sell outs
and the attendances at the Sheffield derbies at the Lane were 31,120 and 30,261 (think the away end was restricted down to 2,100)
So I think SAG make it up as they go along, however it is noticeable that when the PL come along then SAG roll over and lose their restrictions power.
In the Premier League our capacity is 32,000, outside the Premier League SAG love netting and restrict capacity down to a max of 31,000.