Gardman Large Wooden Cold Frame. Solid jointed frame constructed of FSC certified timber. Extend the growing season by insulating plants from frost. Perfect early spring protection while you harden-off young plants before placing in your garden. Hinged easy access doors and body feature tough, twin-walled poly carbonate to allow in sunlight and provide insulation. 2 Door design allows easy access from either side. Simple, adjustable height locking mechanism allows door to remain open for all-important ventilation. Gardman "Bring your garden to life".