Cold Frames & High Tunnels

Cold Frames and High Tunnels are unheated greenhouse structures that help farmers and nursery owners extend their growing season by providing protection from nature. We manufacture many different sizes and strengths of high tunnels/cold frames for each geographic climate. The basic High Tunnel frame consists of a frame with a single layer of poly film, roll-up sides, and doors. Many additional options are available including steel end wall framing, aluminum hat base, automation for curtain systems, heaters, and gable vents.