How large is the Golden Circle section in venues in the UK?

I'm going to a concert at The 02 in February, and I've been informed about the golden circle section which is at the front of the standing section, and then the rest of the general admsision ticket holders will be in a separate section behind. I have tickets for general standing. I just wanted to know how large the golden section is and if it takes up the whole front row of the barrier. I've heard from other people how its a tiny section but I want to know from people who have been to a concert where they were in/saw what the golden circle section looked like.

Thanks.