Are electrical boxes required for outdoor light fixture?

Old 05-17-12, 08:07 PM
Thread Starter
Join Date: Aug 2009
Location: New York
Posts: 115
Upvotes: 0
Received 0 Upvotes on 0 Posts
Are electrical boxes required for outdoor light fixture?

Having a hard time understanding this concept....

There's a heavy (and clearly obvious) emphasis on using plastic/metal electrical boxes when working with switches, receptacles, lights, etc. However, when installing an outdoor light fixture, I'm finding just the opposite.

The vinyl siding light mounting blocks I find at my local hardware store just mount directly to the exterior plywood. A hole is subsequently drilled through the plywood and the wire is passed through. The light fixture is then mounted to the mounting block. There's no real electrical box at all.

Am I missing something? Is this a standard setup for an outdoor light fixture install?
Old 05-17-12, 08:26 PM
Nashkat1's Avatar
Join Date: Mar 2012
Location: USA
Posts: 7,458
Upvotes: 0
Received 6 Upvotes on 5 Posts
Iff (if and only if) the fixture is designed, constructed and rated to contain the electrical connections. Otherwise, a box is needed. All of the vinyl siding mounting blocks I've seen are either ready, or easily adaptable, for facing a box.
Old 05-18-12, 06:10 PM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 13,970
Received 194 Upvotes on 170 Posts
You would need to cut a box into that style of siding block.

Other styles like the ones made by Arlington have a built-in box.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: