fair chair 

The stamped metal chairs (sometimes padded), usually of a puke-brown or dull gray color, with a seat that folds up that you often encounter en masse at public fairs and other gatherings, outdoor weddings, sit-down concerts, church auditoriums, and so forth. Said chairs are designed to be stackable and often come on large racks. Notorious for getting skin-searingly hot if left exposed in sunlight for any length of time.

I went to a concert this summer and nearly burnt my legs on one of those fair chairs!

fair chair by Matthiasfw December 1, 2007