We first laid a concrete base for this 3m x 2.4m potting shed. Construction of the potting shed was an upgrade for the framework to ex 75mm x 50mm and the cladding is ex 19mm x 125mm ship-lap boards painted with a light brown oil based treatment. The glass is all toughened and there is a bench under the window for potting plants and working on. We also put guttering along the back low side which went into a water butt.