Pictures shown show optional extra powder coated options, please see extras list for powder coated cost. For the larger garden setting or the grower with bigger ideas, the Supreme offers a superb greenhouse containing an amazing growing space. With two 5 blade louvres, an 8’ shelf and 3’ wide double doors as standard this is a high performance greenhouse with the room and tools for some serious growing. For extra stability and strength, we recommend building a brick base. However an Integral aluminium base with drop doors giving low level threshold is available upon request.