Tailored for serious backyard growers this 29.5 x 9.8 x 6.6 ft walk-in tunnel greenhouse creates roughly 290 sq ft of heated growing space for raised beds row crops and potted stock. The galvanized steel frame shapes a peaked tunnel roof that sheds rain and snow while the Pe cover transmits diffused light and traps warmth. A roll-up zipper door at one end and 12 mesh windows along the sides let gardeners control airflow temperature and pollinator access.