outsunny 7 x 4 metal tool shed outdoor shed with gloves dark greySave time for what matters the new style outsunny metal shed with horizontal panels would definitely take the stress out of assembly. Tested and proven, a professional assembler can complete the setup in about 90 minutes 30 minutes faster than assembling traditional vertical panel sheds. We anticipate that your family together will be able to complete the assembly in approximately three hours with electric drill and other tools.