Rot Fai Market is located on Srinakarin Soi 51, just behind Seacon Square Shopping Mall. The best way to get there is via taxi – all drivers should know Seacon Square. However, traffic can be bad on Friday and Saturday nights so you could consider taking the BTS Skytrain to On Nut Station first, then catching a taxi from there. The original Rot Fai Market garnered a massive reputation at its former location next to the train tracks (hence the name) behind Chatuchak Market in the north of the city. When it was forced to move in 2013 due to an expansion of the BTS Skytrain line, many thought it was the end for this unique venture, but thankfully it returned at this new site and is bigger and better than ever. There might not be any trains but there is a lot more space for traders to display their beautiful and strange collections in different sections, namely the ‘Market Zone’, ‘Warehouse Zone’ and ‘Rod’s Antiques’.
Read more at: http://www.bangkok.com/shopping-market/rot-fai-market.htm?cid=ch:OTH:001