The Prima greenhouse has vaulted ceilings to trellis tall growing plants or climbing vines. Two adjustable roof vents and double swinging doors provide ventilation to control heat and humidity. The wide double doors make moving items in and out a breeze. The threshold ramp creates easy access. This versatile structure has a powder coat charcoal Gray aluminum frame and cathedral roof and French doors, giving it a touch of European style that enhances any space. The Prima greenhouse is ideal for relaxation and leisure activities. The step-by-step instructions and sliding panel system make assembly a snap. Two people can accomplish this setup in approximately two days. The greenhouse attaches to your wood, concrete base or ground as a hold-down. The rust resistant frame and durable panels let you enjoy your greenhouse for years to come and require very little upkeep.