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I need to extend a 14/2 WG wire a few feet. To do this I want to add the extra wire using a junction box. The problem is that I can't get a good angle to nail the junction box down so I was wondering if using Liquid Nails would be against code?

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what country/state? – Oxinabox Nov 22 '12 at 4:29
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If you post a pic of where you want the junction box we may have other suggestions. – The Evil Greebo Nov 22 '12 at 12:08
I very much doubt that it is legal anywhere. – Brad Gilbert Nov 22 '12 at 13:15
metallic, or non-metallic box? – Tester101♦ Nov 22 '12 at 13:46
I have been in similar situations and have instead drilled a hole in the box where I could access it and nailed or screwed it in place from there. If you still have problems reaching it with a nail then a good nail punch will allow you to finish the nail in tight places. – maple_shaft Nov 23 '12 at 12:24
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1 Answer

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Article 314.23(B) of the National Electrical Code, says that the enclosure must be rigidly supported.

NEC 2008
314.23 Supports.
(B) Structural Mounting An enclosure supported from a structural member of a building or from grade shall be rigidly supported either directly or by using a metal, polymeric, or wood brace.

Whether or not liquid nails would meet this criteria may be up to interpretation, so it's best to check with your local inspector to determine if they'd allow it.

The other (better) option, would be to use an old work box. Which is allowed by subsection C of the same section.

NEC 2008
314.23 Supports.
(C) Mounting in Finished Surfaces. An enclosure mounted in a finished surface shall be rigidly secured thereto by clamps, anchors, or fittings identified for the application.

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