Our telescoping top covers extend (telescope) out beyond the sides of the hive and have a 2" skirt with rabbeted corners. The top is made of 3/8" plywood with an aluminum weatherproof cover. The aluminum extends a full 1" down the sides of the cover to prevent leaking and protect the underlying wood. The Telescoping Top Cover comes assembled. When purchasing the Telescoping Top Cover you will have the option to choose painted or unpainted.