How do plastic Wall anchors work

How Drywall Wall Anchors Work Which Is the BEST

How Does a Wall Anchor Work? eHo

Use plastic wall anchors when you want to hang a picture or other item on a hollow wall, door, or ceiling, particularly if there are no wood studs or beams behind the surface. The anchor will provide the gripping power that you just cannot get with nails, screws, and drywall alone We installed each anchor in one-half in. drywall, following the manufacturer's instructions. Then we hung a tension scale from the anchor and fastened it to a hook screwed into a 2×4 fastened to the wall studs. We slowly twisted the turnbuckle and watched as the tension increased until the anchor buckled. Here's how we tested each drywall. Toggle Wall Anchors These are used in hollow walls including: drywall, plaster, paneling, and cinder block. These make use of a spring action to expand prongs inside a hollow wall. The prongs are then pressed tightly against the inside of the wall by driving the included screw

Use a 1/2 inch pilot bit to drill a hole into the wall. Insert the metal portion into the hole. Pull the plastic to make sure that the metal is pulled tight against the back of the drywall. Pull the plastic taut until it is flush with the wall Plastic expansion anchors are made to hold a screw, expanding inside the wall as the screw is driven into them. They look like a jacket with ribs for your screw, and they're often packaged with the.. The drill bit for the pilot hole should be smaller than the width of the anchor that is being used. For example, you'll use a 1/4-inch drill bit for the hole to insert a 1 inch plastic anchor. Place the anchor in the pilot hole and tap it into the wall until the anchor is completely inserted. It is best to use a rubber mallet for this task Gently tap the plastic anchor into the wall using a hammer or rubber mallet. Tap straight in; any angled tapping will bend the sleeve. Insert the screw into the anchor and slowly screw it in. If using a threaded drywall anchor, screw it in using a Phillips head screwdriver Learn about the types drywall anchors and how to use them to hang items on drywall in this Lowe's video. Visit Lowe's how-to library today: http://low.es/1cN..

Plastic hollow wall plug anchors require that you first drill a pilot hole. They're normally used in drywall or plaster for light-duty applications. When the screw is installed, the plug will expand and lock into place. Continue to 5 of 10 below Hollow Wall Anchors are rated for light to medium to heavy duty loads, as specified. They have either screw or spring actuated tabs, wings or body, or a gravity operated plate, that expands behind the wall to lock the anchor in place. A few are self-drilling, but most require a pre-drilled hole

TOGGLER® Hollow-Wall Anchors - YouTube

How to Use Plastic Wall Anchors Hunke

  1. Conical anchors are one of a number of types of drywall anchors. Tests show they can handle about 80 pounds of downward pressure before they pull out of standard 1/2-inch drywall. Threaded plastic anchors can handle 110 pounds, and threaded brass ones stay in place under a maximum load of 130 pounds
  2. Toggles, anchors or molly bolts are surprisingly strong. A 1/8 toggle can hold 30 pounds on 1/2-inch drywall and a 3/8-inch toggle can handle a hefty 50 pounds or more safely. When applying any kind of drywall anchor, you should understand how they work and which screw anchor may work best to put into a hollow wall. Advertisement
  3. Learn just how quick and easy it is to install TOGGLER® Hollow Wall Anchors. TOGGLER Hollow Wall Anchors are available to buy in the UK here: http://www.togg..

How to Use Wall Anchors in Plaster Walls. Hanging things on lath and plaster walls is a tricky business. Plaster is a hard, durable material, but it's also resistant to penetration. Driving. Use butterfly /winged plastic plugs for dry chalk walls/plaster ceiling . Metal is better than wood and wood is better than plastic anchors/wall plugs . Plastic plugs always tend to twist and turn as you screw but wood plugs always stays in its position while metal anchors/wall plugs are used for holding heavy loads The cylindrical plastic anchors have a hollow center where the screw is drilled in or a nail is pounded into. Once the wall anchor is sunk into a pre-drilled hole in the wall it will expand to hold onto the drywall. Threaded wall anchors use the threads on the outside of the wall anchor casing to get a good grip on the drywall that surrounds it

Wall Anchors Create a Firm Fitting. Because drywall is usually only 1/2 inch thick, hanging items from walls using screws is difficult, as drywall is made from gypsum and has a tendency to crumble For smaller jobs of 20 lbs or less per support (i.e. a shelf with two support brackets and 2 mount points per bracket = 80 lbs), plastic self-tapping screw-in drywall anchors or regular plastic anchors (drill and hammer type) are 1/100th the cost of these and easier to remove

Plastic Toggle Anchors - YouTub

Follow the simple steps below to effectively install wall anchors and paneling. Step 1 - Find the Spot. When installing a wall anchor into paneling, you need to put it where you can drill into the vertical framing behind the paneling. Find a piece of framing behind the wall by tapping on the panel until it sounds solid behind it Choosing the right wall anchors Mario Rodriguez has gathered a range of wall anchors from toggles, to screws, to butterfly anchors and talks about how they work, where they are best used, and how to install them in drywall, plaster, and masonry The front plastic anchor plate is then slid toward the wall and the legs are pulled outward. Once it is tightly set, the excess legs are snapped off. The metal bar is held to the front plate by the remainder of the legs. A bolt is put through your hook or fixture and is threaded into the metal bar. There are several brands

Stick the anchor in the pilot hole and tap it into place until the head of the anchor flushes up with the wall. A rubber mallet is best, but a small finish nailer will also work. Use a screwdriver to set the screw. You can use a drill, but go slow so you don't overdrive it Like an expansion anchor, they require a pilot hole. Once inserted, spikes on the collar hold the anchor in place while you turn the screw. The screw contracts the anchor body behind the wall, extending flanges that secure it against the back of the wallboard. You can also find plastic anchors that operate with the same principle How to Install Plastic Anchors in a Wall for Screws. Part of the series: Drywall & Wall Repairs. Installing plastic anchors in a wall for screws will help make sure the screws can stand up to. It will not work on the ones that expand behind the walls. Add Tip Ask Question Comment Download. Step 2: INSTALLING a WALL ANCHOR. Of the straight in types of wall anchors, this one is perhaps the most secure. With any of this type, installation is usually to poke a small hole and either tap or screw in the anchor Once the anchor has been successfully removed, patch the hole left in the wall, using joint compound and a putty knife. A general-purpose joint compound works best for small patches. It should be smoothed with the edge of a putty knife, then allowed to dry. Once it's dry, apply a second layer of compound thinned with a bit of water for a smooth.

How to use hollow wall anchors - YouTub

How to Cover Up Drywall Anchors. When you hang a picture or set up a shelf on drywall that has no supporting stud behind it, a drywall anchor provides strong and easy-to-install support. If you. How to Properly Insert an Anchor Into a Wall. Whether you're using a plastic wall anchor, a molly bolt or any other type of wall anchor, you'll need to drill a hole in the wall, and the size of. Sleeve anchors have a larger bearing surface than wedge anchors. Use wedge anchors for maximum holding power in hard concrete. Hammer Anchors- For lightweight applications such as hanging furring strips or conduit, a hammer anchor is an excellent alternative to a plastic or fiber anchor. There are a number of styles (Fig. 8) When the anchor goes into the wall, don't think your work is done. You have to keep inserting the anchor into the drywall until it is set properly. Keep applying the pressure until the lip is flush with the wall or it goes inside of the wall. Take a look at the above picture; your anchor should look like the above anchor Step 3 - Ready Your Self-Drilling Wall Anchor. You will notice that self-drilling wall anchors are simply screws that have a plastic coating that appears to cover it. When you drill into the wall, the plastic coating is actually drawn back and creates a large hold in the wall itself. This secures the nail into place

Wall Anchors: A Comprehensive Guide from the NeverMeasure Tea

  1. It's more likely that the wall itself will fail before the toggle bolt does. Winged plastic anchors (the new kids on the block) feature plastic wings that fold tightly together so the.
  2. These favorite workhorse anchors are strong (supporting as much as 75 pounds in 1/2 drywall, easy to install, and inexpensive. And when you eventually want to remove the hanger, all you do is loosen the screw and the plastic anchor straightens and can be pulled out—which can't be done with standard spring-loaded toggles
  3. STEP 4: Attach your rack or shelf to the wall by screwing into the drywall anchor. Once again, make sure you first put the screw through the hole of the thing you're attaching to the wall. (In.
  4. As you can see, the anchor expanded quite a bit in order to create a snug fit for the screw. Threaded Anchors. Sometimes called Zip-Its, threaded anchors are kind of like larger screws. They come with much larger threads than screws do, allowing them to really bite into the drywall and create a pretty nice hold
  5. Select the proper anchor screw. This can only be done if you know ahead of time what type of material the anchor will be screwed into, the approximate weight of the object being hung, and angle of the anchor (as in the case of a ceiling). Plaster wall: anything under 20-pounds can be hung with a plastic expansion anchor.Use a molly bolt for anything weighing more than 20-pounds
  6. g out of the drywall compared to regular plastic wall anchors. Installation is so easy - here is how I do it: If I am installing a shelf, I drive the screws through the marked location on the shelf directly into the drywall (without anchors). This creates the hole where I need it to be plus it is spaced.
  7. conical plastic anchor ribbed plastic anchor wall plug nylon nailinØ lead wood screw anchor spike' tapperd toggle bolt lag shield short sizes only zamac strap-togglem machine screw anchor sleeve anchor 70 lbs up t holds l up ho holds up to holds up to holds up to holds up to up holds up to up to holds up to holds up to 140 150 32

Wall anchors work either by expanding outwards against the hole in which they fit or by clamping against the back of the wallboard. In either case, a wall anchor has to open to exert its holding power. Anchors are designed to open automatically but they sometimes need help or simply fail to open altogether All of the TOGGLER anchors will work in block walls except for the SnapSkru self-drilling drywall anchor, which works only in 3/8-5/8 drywall.The ALLIGATOR all-purpose anchor holds securely both in the solid portion of the block, expanding to fill the drilled hole, and if it hits the cavity, where the screw opens the jaws of the anchor and locks into their teeth to provide holding that is. Threaded anchors don't require drilling and are very easy to use. For the most strength, screw in to a stud. I do this with towel bars especially, because I know people like to use them as hand-holds. Also, people yank towels from their holders, which puts a lot of strain on the wall Anchors are needed to secure items such as pictures, fixtures and mirrors to hollow or weak wall surfaces. Stucco presents an interesting challenge because the surface is lightweight and solid, but hollow with variable solid areas

To install plastic wall anchors, drill a hole slightly smaller than the anchor itself (plastic piece). Gently tap the wall anchor into the wall with a hammer. Use a screwdriver to screw a sheet-metal screw into the plastic anchor (appropriate screws are usually included with wall anchors when purchased). 2 20-Pack 1-1/4-in L x 1/4-in dia Standard Drywall Anchor (Screws Included) Model #50475. Find My Store. for pricing and availability. 8. Hillman. 375-Pack 1-1/4-in Assorted Diameter Standard Drywall Anchor. Model #117110. Find My Store Take a nail-set, awl, or nail and with a hammer tap a pilot hole into the wall. DO NOT make the hole wider than the anchor. Place the anchor over the hole and firmly tap it in until it's flush with the wall. Note: If you tap the anchor into the wall and it won't go in all the way, don't try to smash it in flush A hollow wall anchor creates a support within the wall so you can hang these types of objects. Though there are many different kinds of wall anchors, they fall into three basic categories: plastic expansion anchors, threaded drywall anchors and sleeve type anchors Flanged Plastic Anchors with Screw for Block and Brick. Flush-Mount Plastic Anchors for Block and Brick. High-Strength Twist-Resistant Threads on one end make it easy to screw these hooks directly into a wall. Strap Hooks. Suspend large and bulky items, such as coils of rope and step ladders

How to Use Dry Wall Anchors: 9 Steps (with Pictures) - wikiHo

  1. While traditional toggle bolt anchors consist of a single bolt with wings at one end that pop open after being pushed through the wall, the SnapToggle's two parallel plastic straps tee into a single bar-shaped anchor. The straps can move up or down independently, see-sawing the anchor to form an I or a T as needed
  2. Threaded plastic, cone-shaped, or expanding anchors can often be easily pulled out, while T-nut head varieties may need to be pushed through the wall or removed with a cutting wheel
  3. Hollow Wall Anchors; Masonry & Concrete Anchors; Masonry Anchors; Fastener Type. Plug Anchors. Chemical Anchors. Push-In Anchor. Ribbed Anchor. Concrete Screws #4-6 x 7/8 in. Yellow Ribbed Plastic Anchor with Pan-Head Combo Drive Screw (50-Pieces) (104) Model# 804122. Everbilt #8-10 x 1 in. White Ribbed Plastic Anchor with Pan-Head Combo.

Installing Plastic Wall Anchors DoItYourself

We think they make the best drywall anchors for mounting TVs and other heavy items. Toggler Snaptoggles do require you to drill a 1/2″ hole. However, it's fool-proof for lining up your mount holes when placing a TV mount on a wall, for example. Snaptoggles let you insert the bolt through the mount directly into the affixed anchor any of the plastic anchors will work in concrete if the hole is the correct (tight fitting) size. The screw must 'jam' the anchor against the hole for proper grip. The expanding anchor class of fasteners do a better job than just a screw - HerrBag Feb 27 '13 at 21:2 Drywall anchors are designed to create a strong, reliable connection without a wall stud, allowing you to confidently and securely hang mirrors, artwork and more. There are different types of drywall anchors, and it's important you choose the kind that'll work for your wall material 3. Screw the washer to the top of the anchor bolt, ensuring it is flush against the top of the bolt. Then insert the anchor bolt into the pre-drilled hole. You can hammer the nut to ensure the anchor bolt hits the bottom of the hole. 4. Tighten the nut on the anchor bolt with a wrench until it clicks. Ensure not to add too much torque as this. fastened. Do not continue tightening the screw past this point. - The flexibility of the plastic composition of the anchor acts as a cushion against wall gouging or breakage. - For all of the TOGGLER plastic toggle anchors, use a 5/16 drill bit. In very hard materials, like ceramic tile, use a 3/8 drill bit

How to Use and Remove Wall Anchor Screws

Get free shipping on qualified Concrete, Plastic Anchors or Buy Online Pick Up in Store today in the Hardware Department Toggler designed these anchors for a single-use installation: After you make a half-inch hole, the toggle can be inserted through and leveled against the wall with long, plastic positioning straps. You zip a small plastic flange into place — almost like tightening a zip-tie — and snap off the extra length of the straps To remove a wall anchor, start by removing the threaded screws with a screwdriver. Then, grab the collar, which looks like a circular piece of metal, with a pair of needle-nosed pliers and pull it out. Alternatively, if your wall anchor has a plastic collar, push a utility knife under the collar and saw it off

Drywall Anchors: Weight Tested Family Handyma

Product Type. When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Conical Wall Anchors (54) Expansion Wall Anchors (66) Self Drilling Wall Anchors (24) Tubular Wall Anchors (21) Wall Anchor Kits (12) Pre-Drill Size A regular screw without an anchor ; A cheap plastic split anchor; A toggle bolt (the gold standard in anchors) can work around the problems created by both by. Widening the hole; Straddling the hole; Does the wood glue and toothpick method work here? No. Wood glue is designed to work by gluing wood to wood, not wood to gypsum In time, however, an anchor that is mismatched with a surface will eventually become loose damaging the wall in the process as well as whatever was underneath or hanged on it. How to Install Drywall Anchors. When an anchor is installed in the correct manner, they can be very strong and effective, with an ability to hold up to 40 pounds Plastic Plugs are designed to work with 10-gauge Screw. The plugs are constructed of green plastic for durability and can be removed without affecting Anchor or walls. Plastic plug anchors are used for light duty applications. Used to anchor to: plaster, brick, concrete and other masonry We offer options for anchoring to walls, stationary objects and heavy machinery. To secure these anchors, we offer expansion anchors, expansion pin anchors, hammer drive anchors and more. We also carry the tools you need to help secure your anchor, including our hollow wall anchor-setting tool. As with all hardware distributed by Fastener.

The Qualihome Ribbed Plastic Drywall Anchor 201-piece kit is a great choice for light-duty wall-mounting applications. These highly versatile plastic expansion anchors are great for items up to 20 or 30 lbs like a small picture, clothing hooks, or curtain rods and can also offer extra support for heavier items In short, wall bolts are still a fantastic product and problem solver for attaching heavy things to walls, ceilings and floors. As with everything, there's a million different ways of accomplishing the same result. Do your own research and always follow the manufacturer's instructions. For me, wall bolts remain a staple part of my fixings. To mount shelving into wall studs: The best option you have is to screw the shelving into the wood studs behind the drywall. You do not need plastic or metal wall anchors for this. Magnetic Stud Finder. You will first need to locate the wooden wall studs. Use a stud finder to be able to locate the studs Hollow-wall anchors come in a wide range of sizes and styles for use on virtually any wall, including drywall, plaster, and even hollow concrete block. Most are made of plastic, but metal. Toggle anchors: heavy-duty hollow wall anchor that can be easily adjusted to accommodate wall thickness There are plenty of different wall anchor types. By taking into consideration base material, load capabilities, environmental conditions and overall use and function, you can choose the right fastener for the task at hand

How to Install Garage Shelving | how-tos | DIY

It was a laborious process to install curtain tie backs (those u-shaped things that hold curtains on the side). After leveling everything and drilling holes for plastic anchors, one set has pulled out from the drywall. The drywall is in decent shape. It didn't make too big of a mess. Do I have to st.. A machine threaded bolt is used to expand the Single Expansion Anchor and can be removed and replaced without affecting the holding values of the anchor. The Single Expansion Anchor is available in 1/4, 5/16, 3/8, 1/2, 5/8 and 3/4 diameters. The Single Expansion Anchor is made from a highly corrosive zinc-based alloy called Zamac The Plastic Screw-In Kind: This is the easiest type of drywall anchor. Like the others, it's hammered into the wall, but it simply grips the wall with it's giant threads. To set it: Hammer it in to get it started, then screw the anchor directly into the wall with a screwdriver. Just put the screwdriver right into the hole that the screw will go in, and tighten it down until it is set A picture frame usually does not fall out of a wall because it is never touched. (Here is a Drywall Anchor Animation to help you better understand a plastic drywall anchor.) The BEST fix for something that has fallen out of the wall is to install the towel bar or whatever you are reattaching into a Stud Large versions installed with an angled nail can support up to 20 lbs. For heavier loads, use a flat-mounted hook and an anchor. Mirror clips. L-shaped plastic retainers for installing wall-mounted mirrors. Molly bolts. These are not as easy to use as other drywall anchors, but they're still good to have on hand for medium to heavy loads

Features and Benefits. Strongest of all plastic toggle anchors—reinforces the wall or ceiling & leads the load away from the hole. Vibration & shock proof—won't damage walls or ceiling. Can use a screw gun—anti-rotation fins prevent spinning. Accepts greatest range of screw sizes in each anchor. All install in only a small 5/16 hole When mounting heavy items onto brick walls, masonry wall anchors should be used to reinforce the structure of the brick. Anchors can be used for placing bolts or masonry screws inside without damaging or cracking the brick surface. With the appropriate tools, you can mount a wall anchor into brick with little difficulty On tile, 1/4-in. tubular plastic anchors hold firmly, whether there's drywall or cement backer board behind the tile. Be sure to buy tube-shaped anchors as shown here, not tapered anchors, which don't hold as well. Enlarge the original anchor holes with a 1/4-in. carbide glass-and-tile bit Conical plastic anchors look almost like a sleek dart and are used for lightweight pictures and smaller pieces of art. They go into pre-made holes in the wall and use a sheet metal screw to expand and anchor into the space. Winged anchors are particularly useful for heavier objects (around 25 pounds). This type of anchor has wings that.

Wall Anchors Chart and Installation Instructions- Do-it

Wall plugs, commonly referred to as Rawlplugs or rawl plugs after the company that invented them, are small plastic fittings capable of gripping and holding screws when installed in hard walls. These plugs can be used in walls made of various materials but work especially well in walls made from materials that do not expand, like. Plastic Wall Anchors. Plastic wall anchors have come along way since they first hit the market. This handy device is available in a wide variety of sizes to handle varying weights. While a hollow wall anchor creates a larger hole than those mentioned previously, the damage is still minimal. Installation is a breeze, as you simply screw the self. More complicated than the Wall-Dogs, but much less of a hassle than the plastic anchors, these winged fasteners hammered in smoothly. It took some muscle to drive in screws, which turn the anchor. 1. Not fully expanding a drop-in anchor because the wrong setting tool was used or the operator simply felt that the anchor was set. 2. Setting a stud anchor at too shallow a depth because it was on top of a rebar. 3. Setting a capsule anchor by simply driving the threaded stud into the capsule and not spinning it

Now the reason those plastic anchors don't work so well for a towel bar or say a shelving bracket like this, is that the pressure is not just down like this, but it's also pulling out. For a situation like that, you need an anchor that grips the wall from the back. Something like this Over the weekend I was working on a small project for a friend. I was hanging speakers from the ceiling and used expanding plastic anchors screwed into 1/2 drywall ceiling. The speakers are 15lbs each and there are 4 screws (#10 1-1/2) & anchors . I've now done a little reading and it seems this is generally not a good idea for heavy loads

Tubular Plastic Anchors are fluted, cylindrically shaped light duty anchors designed for concrete, block, brick and stone. Color coded to allow for quick identification of diameter, use these anchors indoors and outdoors with sheet metal or wood screws (order separately) TOGGLER® Specialty Anchors — Picture Hook. Hang paintings, prints, mirrors, etc. quickly, easily and securely. Specially-designed, built-in hook holds the weight of the application on the screw, not below it. Provides maximum holding and prevents pull-out Chemical fixings and chemical anchors. In this how-to guide learn all about using chemical fixings and anchors for fixing to concrete, things such as gate hinges where using traditional expanding bolts and wall plugs may involve splitting and cracking the material you are fixing into. Find out how to drill holes and inject resin From. $3. 59. Hillman Zip-It Hollow Wall Anchor, Nylon, #8 x 1-1/4-in. (19) 4.6 out of 5 stars. 19 reviews. Quick view for Availability. FEATURES. Hillman Zip-It Hollow Wall Anchor for use in drywall applications. Plastic self-drilling drywall anchors

Wall Anchor 101 - How to Use in Drywall The DIY Playboo

E-Z Ancor Stud Solver #7 x 1-1/4 in. Zinc-Plated Flat-Head Phillips Drywall Anchors (50-Pack) work every time. The anchors install anywhere on a wall, even if you hit a wood stud behind the drywall. Stud Solver anchors are great for hanging bathroom/kitchen accessories, shelving, light fixtures, mirrors, picture frames, and more To install, push the toggle through a drilled hole and pull the anchor back toward you until the toggle rests flush against the wall. Then, slide the cap up to the wall and snap off the straps. Next, position your fixture, insert a screw and tighten. For use with machine screws; minimum screw length is the wall and fixture thicknesses plus 1/ 2 Hollow wall anchors If you're fixing into plasterboard that hasn't been skimmed you'll need a setting tool, but in other instances that may not be required. The setting tool does however make it easy to pull back the screw and fix the anchor firmly into the wall, creating a permanent fixing capable of holding up to 10kgs

Brick anchor fasteners attach an item to bricks or mortar joints in a brick wall. Brick anchors are used in place of concrete fasteners because brick contains hollow spaces, unlike concrete that is solid. The hollow space requires a brick anchor in order to obtain the needed holding values in the hollow areas Step 3. Using the screws supplied with the anchor, fasten the mounting flanges to the wall on both ends. Apply equal pressure to the screws holding each flange to prevent the bar from rocking and damaging the drywall. Tighten the screws until they're finger-tight against the mounting flange, then add a half-turn 8. Qualihome Ribbed Plastic Drywall Anchor Kit. These ribbed plastic anchors are a simple, lightweight solution to a range of drywall issues, giving you 100 individual anchors and 100 matching screws (as well as a drill bit) - everything you might need to quickly set up a new mounting point or combine two pieces of drywall together These work in different ways to keep screws from slipping out of their holes or otherwise damaging the drywall. Toggle Anchors. Toggle anchors or toggle bolts look like normal screws but with a butterfly toggle at the end. When placed into the wall, toggle anchors work by anchoring to the back of the drywall

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4. Place Plastic Anchor Screws inside Holes. Now, place plastic anchor screws inside the holes you made with the drill since they are going to hold the whole slide bar now. Make sure not to drill too deep inside the wall since the anchors have a certain depth level they can go in Product Title Hyper Tough 104-Piece Screw and Plastic Drywall Anchor Assortment with Case, 3308 Average Rating: ( 4.7 ) out of 5 stars 25 ratings , based on 25 reviews Current Price $4.84 $ 4 . 8 Purchase Tapcon Anchors. Electrical junction boxes are metal or plastic enclosures in which electric wires meet and join together. The most common junction boxes measure 2-1/2 to 3-1/2 deep and are used according to the number of wires being joined together. Boxes that measure 2 x 3 x 2-1/2 typically have three wires, while the.