For questions relating to compliance with laws and ordinances of federal, state/province and local jurisdictions. Questions should also be tagged with the specific area of construction involved.

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0answers
26 views

Pressure Treated Bottom Plate

I am finishing my basement myself. Its all framed up and I was getting ready to run wire. I noticed a county requirement for pressure treated wood for the bottom plate. I did not do this!!! I am ...
4
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2answers
764 views

Interpreting stair railing code

I am reading this document Looking at this line: (2) Stairways having less than four risers need not have handrails or stair railings. Is a fair interpretation that on stairs with more than ...
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2answers
40 views

Searching for NEC Code

I'm looking for the NEC code that references allowing a new upgraded main panel within a home to contain a main breaker because the meter is directly on the other side of the outside wall, ( verses ...
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1answer
24 views

What is code for stair treads and risers in Georgia

What are the codes in Georgia (the US state, not the country) regarding stair treads and risers in a townhome or condo? My daughter is looking to purchase and the stairs seem too steep. The condo was ...
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0answers
19 views

What is the correct method to measure a storage shed?

My sister lives in the rural unincorporated area of Los Angeles County and wants to put up a storage shed in her large backyard. She has asked me for some help in the design and construction since I ...
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1answer
66 views

Loft bed next to a red water pipe

I had a loft bed built into my condo. The bed is up near the ceiling and there is a large red water pipe just above it. It carries the water to the sprinklers but its not a sprinkler itself. My bed ...
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1answer
51 views

Does MA require permit to replace old K&T and if no how do I know if work is done to code?

Is it required to pull a permit in MA to replace knob and tube wiring? If no, how can one determine if the work done adheres the the proper codes? Who should be sought after to confirm this if no ...
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1answer
94 views

Can a cord and plug attached to a wallbox be used as a transfer means for fixed wiring downstream of the box?

So, we have a circuit that runs from the panel to junction box A, then to junction box B, and then onwards to a load. Can the fixed Chapter 3 wiring between junction box A and B be replaced by a ...
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1answer
132 views

Why are 3-1/2 (16d) nails so hard to find?

So I'm a little confused. It seems like 21 degree fullhead framing nailers are fairly standard. According to the http://codes.iccsafe.org/app/book/content/2015-I-Codes/2015%20IRC%20HTML/Chapter%...
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0answers
34 views

Can I run a 110V extension cord through a wall-mounted cable hider/channel?

I have a ceiling mounted 110V outlet and I want to run an extension cord down to the floor. Is it up to US electrical code to mount those PVC cable hider channels on the outside of the wall and run ...
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2answers
316 views

Understanding deck spans for beams.

I've been looking at various span charts for decks and I'm still not quite sure how to calculate it all when you take into account not just the joists, but the beams and posts as well. What we ...
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3answers
40k views

Is it code-legal to have a circuit breaker box within a storage room?

I am currently in the process of planning a room remodel to convert an existing bedroom into a home office and storage room. One thing that makes this conversion a little bit tricky, is the existence ...
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1answer
58 views

Are there any restrictions for drilling holes in solid lumber joists regarding how close to the ends of the joist? [duplicate]

I've read to not drill a hole greater than 1/3 the depth of the board (I want to drill a 3/4" hole in a 12" board for wiring, so that won't be an issue) as well as not to do it within two inches of ...
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2answers
449 views

Is there a limit to the number of holes bored in a joist?

I already know that a hole bored in a sawn lumber joist cannot be within 2" of any edge or any other notch or hole. And that the hole can only be a maximum of 1/3 the depth of the member (...
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1answer
139 views

Can I use electrical tape for making a splice? If so, how?

What is the approved method for creating an electrical splice to 14 gauge wire intented to carry 110V, 10 amps (standard residential power) in USA? What does code say about tape-splices? The splice ...
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9answers
75k views

Is using 15 amp components on a 20 amp breaker against code?

I have noticed in a few different houses in Oklahoma that 20 amp breakers are used, but all of the outlets and switches only seem to be rated for 15 amps. This goes against everything I know to be ...
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1answer
247 views

Is Kitchen cooktop venting required?

I'm replacing an electric cooktop with downdraft ventilation. Does building code require that I keep this ventilation, or can it be removed?
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3answers
73 views

Is a grounded (neutral) conductor required at a switch location that controls a switched receptacle used for lighting?

The National Electrical Code requires that all habitable rooms and bathrooms, have a switch controlled light (210.70(A)(1)). It also allows a switched receptacle to be used, instead of a lighting ...
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3answers
34k views

How to properly ground a subpanel in detached building?

I Will be installing a subpanel in a detached garage. The subpanel will be 60 amp. The garage is about 30' from the main-panel in-house, and I will of course get an exact length before selecting the ...
3
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1answer
6k views

Is there a specific NEC code specifying the distance between water heaters and electrical panels?

I have a condo in a large building with many identical units. Several times other owners have mentioned that the original layout of the utility room isn't up to code due to the proximity of the water ...
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4answers
1k views

Any problem with installing two identical circuit breakers in series?

Suppose I want to reduce risk of a circuit breaker malfunctioning and failing to disconnect a shorted circuit. What if I install two identical breakers sequentially (one after another) so that if one ...
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1answer
56 views

GFCI Outlet or Breaker

As a part of my renovation of a 1900's cottage I'm completely rebuilding the kitchen. I'm planning on running 2 20A circuits shared between the countertop outlets, fridge & dishwasher. Is there ...
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1answer
488 views

Coast 3-way — does this conform with Code?

For those who aren't familiar, the California or Coast 3-way switching arrangement is a method of wiring a three-way switch circuit that is used when both a switched and an unswitched hot are desired ...
3
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1answer
106 views

Three-way switches to control top outlet of multiple receptacles

I am in the process of renovating the livingroom in my 1930's era house which only has two non-switched outlets in one 12x12 room. I would like some receptacles to have one switched and one non-...
3
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3answers
187 views

What gauge wire do I need for my dryer?

I want to add a washer & dryer to my garage, but breaker box is on the wrong side of house. No matter which way I run the wire, its 110 feet of wire required. Will 8-3 with ground work? Or is ...
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1answer
44 views

Wiring Transition from Inside of wall to Outside of Wall for hard-wired appliance

I am installing an electric kickspace/toe kick heater as part of my kitchen remodel. I do not quite understand how to transition the supply wiring from inside the wall to the space underneath of the ...
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0answers
51 views

Post to beam connections

Here's the issue. I was told that I could find some angle brackets to finish this project (and secure the post to the beam). However, I'm finding nothing that doesn't require we remove the set beam ...
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2answers
40 views

Would a wall mounted TV count as an appliance for the purposes of tamper resistance outlet code requirements?

I was reading this review on Amazon for a recessed outlet where someone points out that it isn't tamper resistant and, as such, is worthless. There is a discussion between the rater and other people (...
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1answer
910 views

Can cable splice devices be concealed?

Devices exist that claim to be able to splice nonmetallic sheathed cables together outside of a box, and in concealed locations. Are these types of devices allowed by National Electrical Code? Here's ...
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1answer
52 views

Best way to run 40 lan cables in loft style office [closed]

I have a project to run around 40 lan cables in loft style office. The office don't have any conduit attached to ceiling at all. The location of RJ45 Jacks is multiple. I wonder what is the best nice ...
1
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3answers
134 views

NEC 6/12 rule clarification

I understand that you must have an electrical receptacle 6 feet from any obstruction or break in the wall, such as a doorway, and no more than 12 feet from the previous electrical receptacle. Does ...
2
votes
2answers
123 views

Conduit Size for Sub-Panel run?

I have old overhead wires that go between my home and a detached garage. The plan is to remove the overhead wires and install a new sub-panel in the garage with an underground (PVC 80) run between the ...
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1answer
81 views

When re-roofing and doing a tear-off do I have replace the roof deck with plywood?

My home was build in 1920 and uses planks for the roof deck. I was planning on just removing the old asphalt shingles and installing new asphalt shingles. Makes sense to me; until a contractor friend ...
4
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3answers
398 views

House has no plumbing vent — is this a solution?

I've been living in a fixer-upper for a while... I've been fixing a lot that was previously done wrong. I've finally gotten around to ripping out our first floor bathroom (two full bathrooms) and I'...
3
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2answers
1k views

Is framing with screws legal?

A friend used trim head screws for ALL of the 2x4 framing (including the outer walls) of his 2400 sq. ft. house. The house uses 8x8s to carry the load; none of the 2x4 framing is load bearing. The ...
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1answer
38 views

Unswitched hot in Fixture Junction Box

A comment on an answer to this question seems to be saying that its illegal for an unswitched hot to run through a light fixture junction box, even though its not connected to the fixture at that ...
3
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1answer
13k views

Are there locations in a residence where a non tamper resistant receptacle can still be used?

Assume for a second that my jurisdiction has adopted 2011 NEC code as legally binding without significant amendment. This code requires (406.11) that 120V 15/20A outlets in all areas defined in NEC ...
4
votes
5answers
210 views

What is code or common rule when securing multiple electrical lines?

What is common practice or code when running new electrical lines in a home(15 amp/20 amp) in a basement that feed up to the 1st and 2nd floor of a home? Is there a rule on how many wires can be run ...
0
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1answer
57 views

How to determine if a circuit breaker has GFCI

I recently discovered none of the grounds in the three-prong outlets in my house are connected to anything. AFAICT the only way this is allowed without GFCI outlets is to have GFCI circuit breakers ...
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2answers
137 views

is a permit required for changing old outlets

Do I need a permit to change old outlets out that are cracked or not working and replace them with new ones Thanks
4
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2answers
144 views

Maximum Distance Between Outlets

In an answer to this question Iggy's answer contains a picture that says "Maximum spacing between receptacles on the same countertop space is 4ft." Does this mean if I were to build a house with 28 ...
3
votes
4answers
498 views

Renovation for Dummies

I am about to close on the purchase of a small (1000sqft) cottage which, although it is habitable, is in desperate need of some tender love & care. I am an avid DIY nut and have have already done ...
3
votes
6answers
24k views

How can I insulate kitchen vent to prevent cold air blowing through all the time?

Building code requires my kitchen to have a 15cmx15cm vent (besides the kitchen cook-top vent). This vent is basically a hole in the wall that reaches to the outside. The vent has grating on both ...
2
votes
1answer
185 views

When do galvanized pipes in NYC residential water delivery pipes need to be upgraded?

It was suggested that I ask here. Some residential properties in New York City still have galvanized pipes for the inlet water line. Since heavy metals from the galvanization can leach into the ...
3
votes
2answers
97 views

Are barrier terminal blocks or bus bars inside a junction or weather-proof box up to NEC code?

I'm going to be adding some Particle Photon relay control to some receptacles so I can remotely turn on and off appliances and lighting. I'm going to house the Photon board and relay in a weather-...
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2answers
75 views

24" OC Interior Wall Framing for UDC

I am framing my basement tomorrow and I'm thinking of using 24" OC for my interior non-load bearing walls. I plan on using 2 sheets of 5/8" sheet rock with a noise dampening compound. Is 24 OC legal ...
3
votes
1answer
108 views

Round hole, rectangular junction box

I am installing a new light fixture into ceiling. There is a round hole there right now (from a recessed light that I removed). The problem is this round hole is just short in diameter of standard ...
3
votes
1answer
38 views

How do I handle the grounded neutral for a simple switch?

I trying to move a switch, which is currently in a 2-gang box. The 2-gang box will need to stay in place (and covered with a plate) as it is also the junction of some other stuff (currently power ...
8
votes
3answers
196 views

Why can the connections of a recessed light be buried in drywall, but not junction boxes?

I'm redoing lights in our kitchen and have to splice some lines. I have read numerous threads that all say you cannot bury the junction box in the drywall, it has to be accessible. The recessed lights ...
7
votes
5answers
74k views

Can different gauge wiring be used in the same circuit?

I am extending a lighting and outlet circuit in a basement. The current setup has the following characteristics 15 amp. circuit breaker (200 amp service) 4 existing lighting fixtures using CFL bulbs ...