Extend your growing season sized to fit nicely in raised beds or used directly on the ground, our cedar cold frame will allow you to start your seeds early, harden off your seedlings, or grow vegetables into the fall and winter. Our cold frames are constructed with rot resistant western red cedar and durable, uv resistant, corrugated polycarbonate with galvanized stainless steel fasteners to add to the longevity. Western red cedar and corrugated polycarbonate. 49" wide x 28" deep x 24 high.Six manual locking vent adjustments. This item is made of western red cedar and corrugated polycarbonate, galvanized stainless steel fasteners.