For a little more security, and additional light into your shed, a steel slab door or double doors with a 4 lite window pattern is the key. Built specifically for use in our sheds, these doors have a wood frame interior and insulation, while the outside is a sturdy steel sheet. The doors are primed, easy to paint, and available in the same sizes as our standard doors. The 4 lite window differs from a transom window in that it is actually one piece of glass, with muntins added to give the appearance of 4 smaller windows. These doors include a keyed door handle.