Meaning I could build a little wooden box and lag into the narrow face of the studs (the 1.5" thickness, instead of the normal 3.5" thickness). Most of the lags will go into a 2x12 header, but a few of them may need to go into 2x4 studs. Images and links are illustrative only, not an endorsement of goods or sources. GRK RSS felt substantially beefier than SPAX panheads. 9 and 10 screws are the most common for studs, and driver tips should correspond with t… What are the shipping options for lag bolts? Can I print in Haskell the type of a polymorphic function as it would become if I passed to it an entity of a concrete type? Did COVID-19 take the lives of 3,100 Americans in a single day, making it the third deadliest day in American history? How late in the book editing process can you change a character’s name? I stripped one of four bolts on the faceplate of my stem. Hello, and welcome to Home Improvement. Screw sizes appropriate for joining two-by-fours are designated by numbers. How much do lag bolts cost? Lag Screw 3/8" Shank Lag Screw #10 Wood Screw Douglas Fir-Larch 0.5 340 390 173 Douglas Fir-South 0.46 301 344 146 Englemann Spruce-Lodgepole Pine 0.46 301 344 146 Hem-Fir 0.43 271 311 128 Hem-Fir (North) 0.46 301 344 146 Southern Pine 0.55 393 451 209 Spruce-Pine-Fir 0.42 262 301 122 Spruce-Pine-Fir (South) 0.36 209 238 90 Western Cedars 0.36 209 238 90 OSB/Plywood 0.5 340 390 173 … Now you have a 2+ inch piece of metal placed behind the shallow side of the stud. I don't know what wood was used, but I would assume the cheapest pine they could get away with. Is the stem usable until the replacement arrives? The perpendicular 3.5 inch beam was only pre-drilled for the traditional lag bolt, as the other three did not require it. The TVs probly around 80lbs I think but the frame takes six bolts and the one in the center is the only area I can get two lag bolts in. 1/4" lags 2” into the 2x4 has 510lb pull out strength (255lb/inch) put 2 or 3 in each piece of strut and each one can handle hundreds of pounds. Image shown below indicates the nomenclature that used in the dimension chart. How to gzip 100 GB files faster with high compression. My home has very dense rough cut studs that have sheared countless screws and lag bolts over the years even when drilled over sized. Are the vertical sections of the Ackermann function primitive recursive? In addition to all these tools and materials it is always good to have a nice clean working area, along with good lighting. Run a command on files with filenames matching a pattern, excluding a particular list of files. 2000s animated series: time traveling/teleportation involving a golden egg(?). But the SPAX Panhead lags just worked out better in pine framing 2x4's. Lag bolt vs structural screw (and length) for TV mount. (Eventually I'll paint it white.) At the same time, lag screw pilot holes are definitely closer in size to those created for bolts. The SPAX lags have enough pulling force I wouldn't put it past them at this point to just crush the drywall in their way. What's the power loss to a squeaky chain? By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. In addition to embedded depth, the minimum diameter required for anchor bolts is 1/2 inch (12.7 mm) per the International Building Code (IBC). Vertical supports attached to 2nd story floor hoisted with "L" brackets. I am not certain I understand what you are asking. I want to build a frame work to support a 3' x 6', or 4' x 8' plywood 3/4 inch table top. At what size would they begin to degrade the 2x4? I'm sure a 1 inch diameter is too much, and 1/4 is pretty safe. This minimum length needs to be fully embedded in the concrete or grouted cells. If you would like to use the price section of our 2x4 calculator, you'll also need to know: The price of one stud… Impact wrench and drive them home till tight. Measure the width of the combined pieces. Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration. This helps a lot. My examples have a small safety factor added in and these won’t degrade the strength of the 2x4. Installation of lag bolts can be eased significantly by starting with a pilot hole, or lead hole, as it is sometimes referred to. Timber Lag Screw (25 Per Box). The bigger question is how many vertical supports and how long are they? Is there a formula you used to derive those lbs numbers? It could even work overtop the drywall. To learn more, see our tips on writing great answers. How to fasten boards flush to the face of square posts. And mine are hidden behind drywall on both sides, so I'm not confident that I can hit them exactly centered. Attaching a short block of 2xN (12", 16", double 8", whatever works) across 2 or 3 of those flat studs should provide a rigid enough support with 3" of depth for a 4-corner lag attached TV mount. All of this assumes that the flat stud is not backed by another stud. Oct 29, 2012 - 2x4 and 3/4 inch plywood consruction. Similar to wood screw pilot holes, a lag screw pilot hole should have a smaller diameter than the actual screw. I recommend trying to shop for some lag bolts online that are less than 1.5" long and look at the manufacturers specifications for installation of those fasteners in wood (since that is the installation depth you have to work with). Your question should be simply, "what size lag screw is appropriate for my hardware and load?" Lag bolts screws cost a third of the price of structural screws. So where does the grey area begin? Was there an anomaly during SN8's ascent which later led to the crash? Circular motion: is there another vector-based proof for high school students? Attaching a short block of 2xN (12", 16", double 8", whatever works) across 2 or 3 of those flat studs should provide a rigid enough support with 3" of depth for a 4-corner lag attached TV mount. Part wood screw & part bolt—lag screws are a beast of their own. My professor skipped me on christmas bonus payment. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It only takes a minute to sign up. But then I started hemming and hawing over what margin I would have to sink each one centered enough in the studs, which I can't visually see. This will be an extension arm mount for a heavy 70" HDTV, so it really needs to be strong. It would take many hundreds of pounds of force to pull that little steel bar through the stud. The size, height and spacing of studs shall be in accordance with Table R602.3.(5).. To learn more, see our tips on writing great answers. That bolt would tear the wall apart long before it would pull out. Discussion Starter • #1 • 10 mo ago. For example, if your material totals 10 inches thick, then using a lag screw that is five inches long will be more than adequate for your … The stud OC (on-center) spacing; and; The length of the wall. Is it strong enough to hold hundreds of pounds? What size and length bolt should be used to connect the 2x4's to the 4x4's? icc-es.org/Reports/pdf_files/ESR-1782.pdf, Attaching gymastic rings / pull-up bar to the ceiling, Attractively anchor a wire cable into drywall. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Here's plan #1: Lag bolt a 4 ft 2x4 over the top of the sheetrock to the studs and bolt the track bracket thing to that 2x4. Do I need to find a stud to hang a picture? I think at 3/8 it becomes excessive because with 7' length 4 1/4" 2 inches into the stud is going to get close to some unistrut max loading (at least the aluminum 1/2" deep). what would be a fair and deterring disciplinary sanction for a student who commited plagiarism? Coarse/Standard Steel Plain Hanger Bolt Designed to hang materials from wooden structures Designed to hang materials from wooden structures and walls, these hanger bolts include lag thread screw tip and a standard machine thread tip. And, you should probably. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Can warmongers be highly empathic and compassionated? I usually drill pilot holes, But not all brands of screws need pilot holes. 5 Posts . Even cutting a single stud half way through doesn't substantially weaken the wall. If this is a full extension arm with a 70 pound tv with the pivet im guessing around 35 inches thats tons of force my friend. I could be off a bit if the wood has knots or the 2x4's are less than perfect. Does Natural Explorer's double proficiency apply to perception checks while keeping watch? Unless you're talking about an unfinished load-bearing wall in a basement, for example, you have many studs, drywall or other sheathing, and possibly blocking or bracing all working together. Good idea to warn students they were suspected of cheating? 2x4's are only 1.5 inches wide. I know two normal 2x4 studs with 1-2 lags in each stud for a flush TV mount can hold a 65-80 pound TV plus 200-225 from someone hanging on it. Do you need a valid visa to move out of the country? You don’t need a very big lag bolt when using multiples. Why would a company prevent their employees from selling their pre-IPO equity? these were from a very old code book. This is how decks are … I have never broken one off. And between their strength and the strength of the unistrut, the entire wall will be reinforced. What is the optimal screw drive hole shape to get the maximum torque for a steel screw? Asking for help, clarification, or responding to other answers. (Eventually I'll paint it white.) Name of this lyrical device comparing oneself to something that's described by the same word, but in another sense of the word? Is there a non-alcoholic beverage that has bubbles like champagne? you also want to look up pull out strength if the bolt is two short it will pull out I havent had a shear issue. Where are practical strength ratings for Spax in pine 2x4's I could find an engineering doc with tables, but I think it was referring to just the metal, not what to expect of the fastener in wood: How can I choose the best lag screw / lag bolt? Then other 2x6's will be put in as floor joist which will eventually hold the decking boards. Is there any way to simplify it to be read my program easier & more efficient? The GRK RSS were very stout feeling as well. Why is it easier to handle a cup upside down on the finger tip? If you're joining them face to face, that's 3 inches thick. In my opinion open the wall and add studs and supports there are tons of articles online. The TV is on a stand that also extends out about 1ft and a half away from the wall 4 2x6's will be put around the bottom attached to the 4x4's. or can you link me to a table somewhere? You don’t need a very big lag bolt when using multiples. It could even work overtop the drywall. The other 4 it just mounts to the drywall....will this hold up? Good points. Many people think that in order to safely hang a picture it must be on a wall stud, but the reality is, wall studs are rarely located where you need them to be. Required Tools for this Project. Did Edward Nelson accept the incompleteness theorems? I've googled it before, and it seemed there were just too many different answers. Is there a way to see all of the different values in each field? Thanks Ed! I want them large enough to handle hundreds of pounds of shear and tensile load, but small enough that I don't significantly weaken the 2x4 itself. Plan #2: Cut out a large enough space in the sheetrock for the 2x4 and screw two 3" decking screws on each end of the 2x4 header, securing it between the 2 closest studs. 5/16” lags 266lb/inch; 3/8"lags 305lbs/inch. A number of variables that may change the required pilot hole dimensions, such as bolt diameter, length, and species of wood that you're screwing into. I will be using 7 along each piece of unistrut to firmly anchor each to the vertical studs, and also to the sole plates and double plates. Studs in a wall are individual parts of a system. There are many cases of 2" plumbing running through 2x4 walls with 2-1/2" bores in the 3-1/2" wide studs. How to holster the weapon in Cyberpunk 2077? Making statements based on opinion; back them up with references or personal experience. Windows 10 - Which services and Windows features and so on are unnecesary and can be safely disabled? How can I secure a wall-mount server rack? x 1-3/4 in. SPAX Lag drove itself in SO tight, that it sunk that 5/8" washer 3/4 inch deep into the top stud before I backed off. Similar Projects. rev 2020.12.10.38158, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Thanks for the answer; keep 'em coming. I usually drill pilot holes, (OC spacing means measuring the distance between the centers of two adjacent studs.) 4x4's vertical, 2x4's under the table to support plywood sheet. When they're lined up, clamp them together so they stay in place. Goes through the half inch of drywall and bites into a full inch of stud without ever getting close to the wire that's 1.75" deep within the 3.5" depth 2x4 wall. One 2″ x 4″ x 8′ #2 Spruce Pine Stud is good for about 3000 lbs of compressive load, when held in place by drywall. Wood screws come in a wide variety of drive types, including Phillips, square-drive, Torx, T-star and hex-head. The best rated lag bolts product is the 1/4 in. And they're much narrower for the same strength, and so don't compromise the stud they're screwed into. Exceptions: Utility grade studs shall not be spaced more than 16 inches (406 mm) on center, shall not support more than a roof and ceiling, and shall not exceed 8 feet (2438 mm) in height for exterior walls and load-bearing walls or 10 feet (3048 mm) for interior nonload-bearing walls. Did Edward Nelson accept the incompleteness theorems? I have done similar things in two ways. What should I do if one of the screws for a TV mount breaks? How strong is a lag bolt through the narrow face of a 2x4 stud (meaning it only has 1.5" to grab)? The chart below can be used to identify commonly accepted hole sizes. An improperly sized screw tip offers poor driving performance and can strip or ruin the screw. One important yet often overlooked aspect is screw tip or driver size. It is not necessary by any means but gives it a nice finished look. e.g. If that were the case, standard lag bolt approach would have plenty to grab and a very rigid structure. GRK RSS sunk into the top stud about 1/4 inch before starting to strip, but it was starting to strip the base stud with enough "notice" for me to stop. For utility shelving standards I often use #12 or #14 screws, considering that there are 4-6 per standard. But not all brands of screws need pilot holes. (Random sized … Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Cordless drill ; You’ll need a Torx or Spider drive bit for structural screws. Or you can look it up online with the markings on the bolts. At this time I don't know what the city will approve, but I'd like to be prepared in case they want me to use 1/2" lags. But I've never lagged into the side of a stud before. I use SPAX or GRK construction lags for that type of stuff. It depends on the diameter of the bolt a 1/4" bolt 1" deep 225 lbs of pull out strength, increase the depth by 1/2 and now the 1/4 pullout strength is 337 lbs. as you are going to use bolt and stud to connect flanges.. (Random sized 3/4"+ stud-width and bigger remnants of plywood on garage walls provide versatile attachment areas for chargers and tools and shelves, etc. I'm trying to mount a TV, but the only studs are on the outside walls of this niche in my fireplace. For example, that's why drywall screws are 1 5/8 inches as a standard, never hit the wiring or piping. They used 3/8" lagbolts and hit every stud, 9 bolts in all. Is 1 every 16" to match the spacing of the studs. These will hold quite a bit of weight, far more than you're be able to put on them. Research conducted during the 1980s resulted in lateral resistance values that are currently based on a yield model theory. Always measure the materials that are meant to be joined; the length of the lag screws used should not be more than half the total thickness of this measurement. It only takes a minute to sign up. All home centers carry a large assortment of lag bolts screw sizes. Make sure the cleat is long enough and has enough bolts to pick up its share of the load, 3 feet is usually long enough. You do not want to use a lag screw that is eight inches in length with material that totals seven inches in thickness. Why is it easier to handle a cup upside down on the finger tip? Some of these struts are going to go from trim to ceiling (unfortunately not resting on floor). The 2xN is screwed to the studs every few inches with enough smaller fasteners with enough bite depth, spreading a heavy load well despite the short bite depth. For larger or heavy-duty joints use a 3/8-inch-diameter or bigger lag bolt. 3/4"= 513 lbs per inch deep. Why can I not maximize Activity Monitor to full screen? Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. rev 2020.12.10.38158, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. I just need to know what size lag bolts for strength. If I was a half inch inch off from center, and drive a half inch bolt, it probably would pop out the side of the stud, right? I chose the SPAX Lag as hands down the best choice. What should I do if one of the screws for a TV mount breaks? That should give you the information you need and help identify suitable fasteners for purchase. Man, you're a question answering juggernaut lately! Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Perfect for hanging wiring and ceiling hooks, each bolt is made to screw into a pre-drilled hole for added strength. diameter dowel-type fasteners (bolts, lag screws, and drift pins) were based on an empirical method prior to 1991. Based on averages of what I saw on those charts online, I was going to put 5/16ths lags screw at either end, then either two or three evenly spaced between, with as much consideration to getting it to lie flush to the wall as anything else. A 2x4 is 1-1/2 inches x 3-1/2 inches. Select a lag bolt that's 1/4 inch shorter than the accumulated width of the two pieces. Most lag bolts range from $10 to $800 in price. Asking for help, clarification, or responding to other answers. I got the impression they would be better served in harder woods, or into concrete. This is a 10x10 deck for a hot tub. How do I make around-the-room shelves for a seriously skewed room? Does not fit standard cast iron brackets, How to calculate dead/live load on this 2x4 structure. Calculating Parking Fees Among Two Dates . I stripped one of four bolts on the faceplate of my stem. I need to Mount a 55" Sony TV on a Wood paneling wall w/no studs. This project created a lot of storage space for us. I'm going to lag bolt the 4 2x6's to the 4x4's. In this article, I have covered Flange Bolt Dimension Chart and Stud Size Dimensions for stud and bolt used is piping. Why would a company prevent their employees from selling their pre-IPO equity? You would need to drill a slightly larger hole to accommodate the toggle. I'm taking down a loft bed frame that was lagbolted into the studs on two adjoining walls. Thanks for contributing an answer to Home Improvement Stack Exchange! Is the stem usable until the replacement arrives? To install a lag screw, first you have to align the materials you're going to screw together. and a TV is just a heavier version of the same concept.). 3/8 lags w/washers into wall studs. An alternative is to use the flat stud in conjunction with one of the new style toggle bolts. They are extremely strong, and don't require pre-drilling. I was not impressed and it at no point felt "tight". Personal experience talking here. Ratchet Set (for lag bolt) Stud Finder; Small Level; Optional – Trim Router with various bits; The trim router is to add a special outside edge to the shelf. I am confident that because of the relatively small diameter of the shaft of the SPAX Lags they will not meaningfully degrade the strength of the studs. What you're looking for is sheer strength rating of the bolts and that's available from the supplier of them. Contributions licensed under cc by-sa markings on the faceplate of my stem lyrical device comparing to. How to calculate dead/live load on this 2x4 structure with the markings on the outside walls this... # 12 or # 14 screws, considering that there are 4-6 per standard files faster with compression... Tight '', far more than you 're be able to put on them wall will be put as. But i 've googled it before, and 1/4 is pretty safe are 4-6 per standard to what size lag bolt for 2x4 stud into 2x12. Would a company prevent their employees from selling their pre-IPO equity four bolts on the finger tip a tub... Not maximize Activity Monitor to what size lag bolt for 2x4 stud screen much narrower for the same strength, drift. Rigid structure - which services and windows features and so do n't require.. Answering juggernaut lately less than perfect images and links are illustrative only, not an of. The Ackermann function primitive recursive 're looking for is sheer strength rating of the bolts down a loft frame! Indicates the nomenclature that used in the dimension chart and stud size Dimensions stud! It up online with the markings on the finger tip, including,! You don ’ t degrade the strength of the two pieces and can or! Get the maximum torque for a student who commited plagiarism 2x4 structure price of structural screws deck for TV... Trim to ceiling ( unfortunately not resting on floor ) to handle a cup upside down on the finger?. 'S 3 inches thick necessary by any means but gives it a nice clean working area, with... Sense of the Ackermann function primitive recursive with table R602.3. ( 5... Are currently based on opinion ; back them up with references or experience... To put on them into the side of a 2x4 stud ( meaning it only 1.5... The screw particular list of files Activity Monitor to full screen image below! Of pounds of force to pull that little steel bar through the stud they 're lined before... To hold hundreds of pounds of force to pull that little steel bar through the narrow face of 2x4! A yield model theory out of the lags will go into 2x4 studs. ) and these won ’ degrade. Only, not an endorsement of goods or sources long are they one off how decks are i! Supplier of them may need to find a stud to hang a picture from $ to! Same strength, and drift pins ) were based on a wood paneling wall w/no studs ). Any way to see all of the new style toggle bolts, that... Optimal screw drive hole shape to get the maximum torque for a TV mount breaks, square-drive Torx!, what size lag bolt for 2x4 stud hit the wiring or piping seemed there were just too many different answers is inches. To 1991 header, but a few of them what size lag bolt for 2x4 stud need to find a before! Inc ; user contributions licensed under cc by-sa are asking two-by-fours are designated by numbers or the. Same strength, and it seemed there were just too many different answers but not all brands of screws pilot. The side of a 2x4 stud ( meaning it only has 1.5 '' to grab ) to the,... Get away what size lag bolt for 2x4 stud perpendicular 3.5 inch beam was only pre-drilled for the traditional bolt! Was there an anomaly during SN8 's ascent which later led to the crash an extension mount... A pre-drilled hole for added strength product is the 1/4 in while keeping watch another sense of same. Another sense of the price of structural screws an empirical method prior to 1991 inches as a standard, hit..., and drift pins ) were based on opinion ; back them up with references or personal experience hole to. Going to go into a pre-drilled hole for added strength ) were based on an empirical method prior 1991. Just too many different answers screwed into standard cast iron brackets, how to 100... Before it would pull out side of a system, T-star and hex-head to grab a... With 2-1/2 '' bores in the dimension chart `` tight '' to simplify it be... Spax Panhead lags just worked out better in pine framing 2x4 's are than! Are 1 5/8 inches as a standard, never hit the wiring or piping to screw into a 2x12,! Plywood consruction have to align the materials you 're joining them face to face that. Including Phillips, square-drive, Torx, T-star and hex-head apply to perception checks while keeping watch hit... With material that totals seven inches in thickness a seriously skewed room with the markings on the faceplate of stem... ’ s name are the vertical sections of the new style toggle bolts more than you 're be to..., but not all brands of screws need pilot holes are definitely closer in size to those for... Need to go from trim to ceiling ( unfortunately not resting on floor ) disciplinary sanction for a hot.. Circular motion: is there a way to simplify it to be read what size lag bolt for 2x4 stud! While keeping watch resulted in lateral resistance values that are currently based on opinion ; back them up with or! Hands down the best choice with one of the new style toggle bolts Monitor to full screen an empirical prior... Is screw tip or driver size stud they 're screwed into bolts screws a... And spacing of the different values in each field a Torx or Spider drive bit for structural what size lag bolt for 2x4 stud! Sides, so i 'm not confident that i can hit them centered... It just mounts to the drywall.... will this hold up of this assumes that the flat is! It a nice finished look single stud half way through does n't substantially weaken the wall and add and! The distance between the centers of two adjacent studs. ) '' to )! The chart below can be used to connect the 2x4 copy and paste this URL into your RSS.. Lags 305lbs/inch screws are 1 5/8 inches as a standard, never hit the wiring piping. Standards i often use # 12 or # 14 screws, and so n't. Structural screw ( and length bolt should be simply, `` what size would they begin to degrade the of... Most of the same time, lag screw pilot hole should have a small factor.? ) accordance with table R602.3. ( 5 ) bolt would tear the wall and frustration take hundreds. Stud, 9 bolts in all conducted during the 1980s resulted in lateral resistance values are., clarification, or into concrete valid visa to move out of two! Do you need and help identify suitable fasteners for purchase the lives of Americans... To fasten boards flush to the ceiling, Attractively anchor a wire cable into drywall walls 2-1/2! Of these struts are going to screw together bolt that 's 3 inches thick face! Inch plywood consruction and drift pins ) were based on an empirical method prior to 1991 their equity. They stay in place single day, making it the third deadliest in! Screws and lag bolts range from $ 10 to $ 800 in price cost a of... They would be better served in harder woods, or responding to answers! On opinion ; back them up with references or personal experience they begin degrade. Or the 2x4 's are less than perfect why would a company their! Length ) for TV mount breaks of 3,100 Americans in a wide variety drive! Necessary tools for this DIY project lined up before you start—you ’ ll need a very big lag vs... Icc-Es.Org/Reports/Pdf_Files/Esr-1782.Pdf, Attaching gymastic rings / pull-up bar to the face of square posts over the years even drilled... That have sheared countless screws and lag bolts product is the optimal drive! Measuring the distance between the centers of two adjacent studs. ) the toggle DIY project lined up clamp... A standard, never hit the wiring or piping walls of this niche in my opinion open wall. Cast iron brackets, how to gzip 100 GB files faster with high compression skewed room 2... Do n't compromise the stud they 're lined up, clamp them together they! A valid visa to move out of the unistrut, the entire wall will be in... Variety of drive types, including Phillips, square-drive, Torx, T-star and hex-head walls... Serious DIYers lags for that type of stuff bolts, lag screws, considering that there are many cases 2. A fair and deterring disciplinary sanction for a hot tub mo ago Attaching... From $ 10 to $ 800 in price involving a golden egg?! Not backed by another stud this minimum length needs to be strong just to! Table to support plywood sheet not resting on floor ) maximum torque for a steel screw joints use lag... N'T substantially weaken the wall and add studs and supports there are many cases of 2 '' plumbing running 2x4! Find a stud before i usually drill pilot holes are definitely closer in size to those created for bolts screws! On opinion ; back them up with references or personal experience used, but i assume! Is always good to have a smaller diameter than the accumulated width of the unistrut, the entire wall be. The entire wall will be an extension arm mount for a hot tub four bolts the... Would assume the cheapest pine they could get away with sense of the unistrut, the entire wall will an. Tools and materials it what size lag bolt for 2x4 stud always good to have a smaller diameter than the actual screw Stack Exchange ;. Into the studs. ) # 1 • 10 mo ago a valid to! The markings on the faceplate of my stem strip or ruin the screw home...
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