Originally Posted by msm2000uk

I was at BKK last week in F.

The F lounge, is, as you stated, the Royal First Silk Lounge.

At check-in, the staff will direct to you to the Orchid Lounge towards C3. However, ignore them.

Walk through the airport, past the miles of shops, towards C Gates. When you go down the escalator, look to the left and you will see a sign which says 'Royal First Lounge'. It is very comfortable with excellent staff and lovely private rooms.

For the record, the C3 lounge isn't great.