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Electrical Wiring in the Home/Adding a 15amp circuit for an outdoor playhouse.


East side of structure
East side of structure  

Today I will be adding a 15amp circuit for an outdoor playhouse.   I have a permit but I forgot to ask my inspector if the wiring at the playhouse has to be in conduit.

Most of the wiring will be behind sheathing but there are a couple runs that will be exposed.

The playhouse is elevated so the run up into the playhouse not be covered.

My local Lowes was under the impression if you use outdoor wiring it can be secured and out of conduit.

What are your thoughts?

I live in Washington state and my local City does not have any additional regulations for electrical.

Thanks for your help.


The only way to be sure is to call the inspector.  No matter what the rules are, he pretty much has the final say. There are always some local rules somewhere, but conduit is usually not required in residential uses.

Any wire that is exposed to the weather should be UF-B cable however. You will want to make sure that everything is protected by a GFCI. Even if the lights are not required to be on a GFCI, I would do it anyway for safety. If water can get inside, then you should use waterproof outlets.
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Bob Sponaugle


Just about any home wiring question. (not appliance repair) I have done all kinds of home wiring for myself, including adding a new breaker box, etc. Please, questions from North America only. Please be specific with details.

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