This 12 x 8 windowless overlap apex shed is one of the largest sheds available in this range this shed has a large spacious interior perfect for storing awkward item items like boating or sports equipment the roof of this shed is made from quality 8mm solid sheet board this is protects the shed from weather damage this shed also comes with roofing felt which helps to protect this shed further the floor of this building is made from 10mm solid sheet material this makes it strong enough