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191
votes
2answers
40k views

What is the purpose of these holes on my wire stripper?

I have been using this wire stripper for a while, but I have always wondered what was the purpose of those holes in the center and above LOOP, and those teeth on the handles.
123
votes
10answers
57k views

How to prevent heavy rainwater from jumping the gutter?

During heavy rain, the water collects from my second floor roof and runs onto the first floor roof as it should. The problem is that since all this water is now concentrated from the second floor ...
120
votes
21answers
70k views

Is there an easy way to measure the height of a tree?

I'm looking to get an antenna installed for Internet service that will need to clear some trees on my neighbor's property because it requires a clear line of sight to work. I really don't trust my ...
106
votes
17answers
113k views

When should I not use WD-40?

Looks like WD-40 can be used for lubricating just about any metal parts. Are there non-obvious cases where using WD-40 will be harmful to the stuff lubricated?
93
votes
7answers
509k views

How can I add a “C” wire to my thermostat?

So, the spiffy new wi-fi thermostats want power on the C wire from thermostat, but the old thermostat doesn't have a C wire at it. What's the easiest way to add the C wire/24 volt to the thermostat ...
91
votes
3answers
15k views

Why does my freezer get a little warmer every 14 hours?

I equipped my fridge-freezer (Bosch KGN 33X48/13, bought around 2013) with a self-made temperature monitoring system to warn me whenever the internal temperature of the freezer rises above a certain ...
85
votes
18answers
66k views

How do I make a height adjustable desk?

Has anyone made their own height adjustable desk? I'm interested in making a computer desk that can easily be adjusted for either standing or sitting. The lift mechanism could be electric or ...
82
votes
13answers
64k views

How to remove screws with stripped heads?

I have wood screws whose heads are stripped from trying to remove them with a drill. The drill (or screwdrivers) can't grip the heads anymore. What can i use to remove these screws easily?
79
votes
14answers
9k views

Are solar panels cost-effective?

Environmental issues aside, I'd like to know whether solar panels are worth it from a monetary standpoint? How long before payoff occurs? Pros & Cons? Is technology moving too fast, e.g. should I ...
79
votes
8answers
447k views

Should a washer go on nut side, or the bolt side?

Often I take something apart and when I go to reassemble it, I don't remember which side the washer was on. When there's only one washer, does it generally go on the nut side (pressed up against the ...
77
votes
2answers
14k views

Why did my electrician put metal plates wherever the stud is drilled through?

My electrician put the metal plates pictured below wherever he drilled through a stud. My guess is that this strengthens the stud, because it was weakened by the holes he drilled. Studs with metal ...
76
votes
12answers
50k views

Is there a case where nails are better than screws, from an engineering/structural standpoint?

Is there a case where nails are better than screws, from a structural standpoint? For instance: Say you used screws instead of nails on a backyard deck, when the design specifically called for nails. ...
68
votes
7answers
407k views

Understanding US Screw Sizes

I'm going to be building a workbench, so I've been 'screw shopping.' I need some explanation on the sizing of screws when they are advertised as (example) 6 x 3/4". I know that 3/4" is the length of ...
67
votes
15answers
33k views

What should I consider regarding LAN wiring before building a house?

I am planning a small house (4 rooms, 2 floors, no basement, no attic, 120 sq.meters) and I want to run a lot of LAN cables throughout because of poor WiFi experiences in my apartment. Because the ...
67
votes
10answers
103k views

How can I improve the water pressure in my shower?

I recently purchased my first home. It has two bathrooms and the water pressure in both is less than ideal. What are some steps I can take to increase the pressure?
64
votes
11answers
84k views

If metal expands when heated, how does heating a bolt loosen it?

If you're having trouble removing a stuck bolt, common advice is to heat the bolt up. But if metal expands when heated, wouldn't heating up the bolt just make it harder to remove? How does heating ...
56
votes
11answers
30k views

Is there a trick to applying caulk using a caulk-gun?

Perhaps it is just me, but no matter how careful I try to be, any attempt to apply caulk or cement or anything with a caulking gun into a crack results in total mess. The main problems that seem to ...
56
votes
14answers
407k views

Should I set fence posts in dirt, gravel, crushed rock, or concrete?

I have received conflicting advice about how to set wooden fence posts. Many web sites suggest setting them in a concrete cylinder. Someone at the local hardware store had seen posts set in concrete ...
55
votes
77answers
46k views

What are the tools that every Do-it-Yourselfer must own?

What are the tools that every DIY'er should have? This is a community wiki as there is no one right answer. Instructions: One item per answer (so they can be voted on - answers with multiple items ...
54
votes
11answers
64k views

When I turn down the dimmer switch on my lights, do I actually use less electricity?

My wife and I have several lights on dimmer switches throughout our home. We generally prefer the ambient lighting provided by dimmed lights. I am curious, though, if we are saving any electricity by ...
52
votes
14answers
18k views

How to avoid stripping screw heads?

In at least two different contexts now (installing shower handrails, installing gate on fence) I've found myself stripping the head of the screw beyond all use. I must be doing something wrong, so ...
51
votes
5answers
178k views

How can I fix electrical outlets that don't “hold” plugs that are plugged in to them?

In short, most of the outlets in my house have one working receptacle and one that any cord plugged in will immediately slip out of. Some of my outlets don't have any working receptacles (I hope I'm ...
50
votes
8answers
164k views

When would one use an impact driver versus a regular drill?

Or vice-versa. As best as I can tell, the impact driver is very good for most any type of screw going through wood. When would you use a drill (with screw bit) instead?
47
votes
9answers
27k views

Which way is up? (electric outlet)

My house has electric outlets in both orientations. Which one is correct? Should the ground hole be at the bottom or the top? OR
46
votes
6answers
277k views

When pre-drilling for screws, how do you determine the correct bit diameter?

Suppose I want to pre-drill for, say, a 5/16 screw. How do I determine the correct drill bit diameter?
44
votes
2answers
30k views

What is the purpose of this Y shaped bit?

I have bought a bits set and there is this bit: It is a Y shaped bit, and there is a groove on the inside of the branches. The angle is approximatively 90˚ (a little more).
43
votes
11answers
13k views

What are insulated screwdrivers for if you’re not supposed to work on a live circuit?

It’s not just that I’ve been told by some people to never work on a live circuit as an amateur (I know that electricians often do work on live circuits)... but the package itself containing the ...
43
votes
7answers
22k views

How can I speed up my slow hot water?

Our water heater (gas) is located in the garage. It is 25 to 30 feet away from the closest faucet, which I'm guessing is the main reason it takes so long -- a minute or longer -- to get hot water ...
43
votes
8answers
123k views

Should I use a subfloor for a finished basement's floor?

We are refinishing our basement and have not yet decided what to do for the floors. Part of the basement will be tile, and we are all set. However, the rec room side is going to be carpet. The ...
42
votes
8answers
101k views

When drywalling a room, should I do the ceiling before the walls?

Is there any value in installing drywall (plasterboard) on the ceiling before the walls or does it not matter?
42
votes
7answers
27k views

Why are there so many different types of screws (phillps/flat/hex/star/etc)?

Newbie question. Why is it that there's a bazillion different types of screws? Why can't we just always use one standard screw type? Are there advantages/disadvantages to the different types? Are ...
42
votes
8answers
118k views

How do I run wires for a wall-mount flatscreen TV?

Like a lot of you, we have several wall-mounted LCD HDTVs in the house. The TVs have two wires -- power and HDMI -- running down the wall to the power outlet and cable box. I've historically been too ...
41
votes
11answers
13k views

Is there a way to unscrew a light bulb that has broken?

The recessed light in my bathroom broke while trying to unscrew it, and only the metal collar remains. What is the best way to get that remaining part out?
40
votes
9answers
14k views

Is the Electrician trying to scam me?

I own a home in California and was emailed by my property manager about an electrical problem with an outlet. The outlet was fixed according to the tenant but the repair man through the manager thinks ...
40
votes
7answers
39k views

How can I pull a wire through a pipe that has too many turns for fish tape?

I need to replace a sump pump, but have run into a problem. The route for the cord goes through a 2" pipe with two 90 degree bends, and fish tape is ineffective. The pipe appears poorly jointed as ...
40
votes
3answers
5k views

How can I restore power after a switch was shorted with scissors?

Ok, so I'm a 15 year old kid and my parents werent home, my house is under construction and I wanted to see what would happen if I put scissors to my light switches, so I took the pair of scissors and ...
40
votes
9answers
578k views

How can I paint over mold to prevent it from coming back again?

The source of the leak has been fixed, however the old mold keeps showing though the new paint.
40
votes
7answers
213k views

Can Romex (NM-B) be run through conduit?

A few days ago I asked an electrician if I could run Romex through conduit - he gave me a funny look and said "No, Romex is not allowed in conduit." When I searched online, there seems to be a wide ...
38
votes
11answers
17k views

How can I allow 911 first responders to access a locked residence? [closed]

What if I live alone and cannot unlock the door during an emergency? What can I do to enable 911 responders to enter my residence without tearing down the door?
38
votes
10answers
147k views

Doors are sticky and noisy when opened?

For some reason, the doors in our house make a very loud "unsticking" sound when you open them. It's almost as if the paint isn't cured, since the sound seems to come from the contact area around the ...
38
votes
10answers
408k views

How long should I wait before plugging in a new refrigerator?

Today I received my new refrigerator, and I've been told not to plug it in until a couple of hours have gone by. Some people told me a couple of hours was enough, but others have told me up to 12 ...
37
votes
11answers
32k views

Why don't you connect unused hot and neutral wires to “complete the circuit”?

I'm new to home wiring and had a question I'd like explained to me. I removed a vent hood over my oven and I thought I had to complete the circuit so I tied the hot and neutral wires that were ...
37
votes
10answers
125k views

How do I drill a 2⅛ inch door knob hole over an existing 1½ inch hole?

I need to replace the door knob for this interior door: The door knobs I've found at the stores require a 2⅛ inch hole. Mine is only 1½: Did door knobs used to be smaller? Is there some place I ...
37
votes
3answers
10k views

This fell out of my toilet when I unscrewed the supply line. What is it?

I needed to replace my toilet’s tank to toilet gasket, and in the process disconnected the toilet’s supply line. The rubber “screw like” object shown above fell out when I did this. After finishing ...
37
votes
10answers
55k views

Should old knob and tube wiring be replaced?

I have been doing some electrical work in my house and I noticed it has old knob and tube wiring that is still hot, should this be replaced as found or is it fine to just leave it? It seems really ...
37
votes
8answers
93k views

Should I use steel or wood studs for basement exterior walls?

Related: When should you use metal studs? I'm planning on finishing my basement. (assuming all water issues are resolved) I'll be putting up a water barrier (tar paper) on all exterior walls, ...
37
votes
5answers
21k views

If a light bulb is dead, does it still consume electricity if the switch is in ON?

It's been a week since a light bulb in the bathroom died. I'm wondering if the bulb is dead, does it still consume electricity if the switch is in ON? The light is completely dead, no light ...
37
votes
2answers
5k views

Is there a proper name for this kind of toothed disk?

I'm building a piece of furniture with an adjustable part and would like to use a toothed disk similar in concept to the examples show below. Before having it custom made, I am searching for a ...
37
votes
4answers
21k views

Are there ways to determine if a wall is load bearing?

Other than looking up blue prints, which many homeowners may not have, are there ways to determine if a wall is load bearing? Methods I can think of might include: Going up in the attic to check if ...
37
votes
2answers
112k views

What does “1 Gang”, “2 Gang”, and so forth mean when talking about electrical boxes?

What does a "1 Gang" mean when talking about electrical boxes? Example: CARLON 1-Gang Metal Adjustable Electrical Box (Lowes.com)

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