Daniel Hellman (left) and Eric Chang have been best friends since the sixth grade, when the industrious pair began hanging out and making tree houses together after school and during summers. Flash-forward to 2006, when they launched their furniture business, Hellman-Chang, in Bushwick. They had just returned from showing at the International Contemporary Furniture Fair when I dropped by their studio last week for a tour. Here they are in front of a 13-foot-long table that they created for a show house with famed Italian designer Piero Lissoni; they now use it as a desk. The 10-foot sliding closet doors behind them were made with wood reclaimed from an old barn in Wyoming. Photo: Wendy Goodman