I have hooks that can take up to 35 lbs. Thanks for contributing an answer to Physics Stack Exchange! Wood Header and Supported Weight The weight that can be supported by a double or triple wood header . If 1 screw can support 120 lbs, how much weight can 25 screws support? Instead, the load is a function of its cross-sectional area. As others have pointed out in the comments, it is not really trivial to apply any model to reality, especially since we don’t know much about reality. For perspective the diameter of a #6 screw is .138″, (1/8 = .125″). My situation is this: I am hanging 500 lbs of drywall (two layers weighing about 250 lbs each) on 5 rows of metal furring channels (hat channels) which are mounted onto RSIC (sound insulation clips) which are screwed into studs with drywall screws. Generally, the deeper your floating shelf is, the less weight it can hold, or the stronger the floating shelf bracket needs to be. I'm a wood n00b, I just bought some high-brand wood glue and I will glue and screw whereever I can. It’s possible that it could hold much more weight than 50 lbs. The Engineering ToolBox Sketchup Extension, en: wood header weight supported double triple, es: peso cabecera de madera apoyada triple doble, de: Holzkopfgewicht unterstützt Double Triple. Out of all the screws that I have the best fit are a pack of #6 x 1" screws that come with plastic anchors, but since I have to hang the mirror off of ONE of these screws I can only screw it in 50% or 60% of the way. There will be around 66,725 pounds pushing down on the ring from the top inducing shear stress on the screws. The wall is 13' 10" long and 8' tall. In parliamentary democracy, how do Ministers compensate for their potential lack of relevant experience to run their own ministry? What do I need to … These applications will - due to browser restrictions - send data between your browser and our server. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Asked by Wiki User. 5) Screw or Bolt: You said screw so I'll use screw. 0 0 1. Use MathJax to format equations. I assume that your test standing included and rail and all, or is that a untested possible point of failure? hide. Book with a female lead on a ship made of microorganisms. report. If you’re allowed to span 16′ with your joists 16″ on center, but you only span 8′ with your … Hard wood with a properly sized pilot hole and no splitting: my gut says 1/4” lag screw can hold 40# static. If you could ensure that the load perfectly distributed on all the screws then it's just 25*120lb. Without knowing the speed of sound in drywalls, it is difficult to make any estimates here. Third, we could check if there are any screws that, if they are removed, leave another screw with many more ‘neighbouring’ tiles. Any idea why tap water goes stale overnight? 100% Upvoted. How much force would be necessary to hold a 6-foot steel staff weighing 20 lbs from one end of it, parallel to the floor? MathJax reference. Some of our calculators and applications let you save application data to your local computer. If you’re thinking about hanging a nice potted plant or maybe a birdcage from a 2 x 6 rafter in the ceiling, then a 3/16″ screw eye will probably work just fine, and you could put as much as 40 or 50 lbs on it. 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. per square foot. F = 2850 SG 2 D (1) . They are going to be screwed into the outside of the ring so they point towards the center. To learn more, see our tips on writing great answers. $$\frac{4}{44} \approx 0.09 \hat{=} 45.5\textrm{ lb }\hat{=} \frac{1}{3}\textrm{ screwweight}_{\textrm{max}}\quad.$$ A #6 UNC should work. Sponsored Links . In general, a screw can hold 80-100 pounds. I'm now trying to hang the entry way shelf into studs. The easiest way to increase the amount of weight a screw in a stud can hold is to simply double up. That still looks rather good, doesn’t it? My question assumes total structural stability. To test the strength of a single screw, I mounted a single clip into a dummy stud and ended up being able to hang 120 lbs of dumbells on it. Be sure to distribute the weight across as many as you can. Wiki User Answered . So, using simple math, it seems I would be able to say, "Well, if one screw can support 120 lbs then 25 screws can support 3,000 lbs!" Google use cookies for serving our ads and handling visitor statistics. It appears that you are building some sort of sound-proofing. However, we can make a few educated guesses and estimations and see how well everything fits together. Cookies are only used in the browser to improve user experience. If this seems small, keep in mind that the ultimate strength (breaking strength) of a Grade 2 bolt is 74 ksi, so a #6 screw could theoretically hold 672 lbs in pure tension. And while the assumption is probably wrong, we can be relatively sure that a safety margin of 500% is a good start. Thanks for the comments. A lag screw's pull-out capacity is strongest with … A 3/8-inch toggle is capable of supporting 100 pounds. Use coupon code "TAKE10" to get 10% OFF! How much weight can a 10 32 screw hold? Updated my answer with a diagram of my entire clip assembly. So, Martin, you're saying that, assuming the clips are spaced in such a way that the weight is evenly distributed, calculating how much weight these 25 screws can collectively support is as easy as taking the weight a single screw can support and multiplying that by the number of screws in the assembly? What Factors Determine … The vertical black lines represent the studs and are spaced apart at about 16" (it's not exact because I had to add a couple studs and the frame joins up with another frame at one point in the wall), the red dots are the clip assemblies, and the horizontal grey lines are the hat channels that are mounted onto the clips. Ignore the green dots and yellow arrows. Now these mirrors didn't come with any screws, but I have a variety of them. A nail in just drywall can't hold more than a few pounds of weight, but a thin nail in a wood stud can typically hold up to 20 pounds and several coarse threaded wood screws in wood studs can typically hold up to 100 pounds or more. If two hooks support weights on a string across a span, how much weight can it support? 3. Begin by specifying whether you will have it in tension, in compression, in bending, in twisting, or in shear. What's it saying in plain, layman's English terms? 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