When you arrive in Thailand your passport.is stamped for 60 days. You then go to the immigration office nearest where you're staying and buy a 30 day extension for ฿1900
I've only once posted in he group and just given a few answers and replies. But the moderators, their knowledge, the accumulated members knowledge, never cease to amaze. However, in my limited experience here, I can't recall reading a post of thanks so well written and so concise in its contents without being verbose.