For example: all independent variables (those that can be selected) should be in RED: I’d be really cool if this were slightly more adjustable… specifically, if the “hang point” height could be fixed to allow for an adjustment in the “distance between anchors”. No PVC would withstand that. Luiz Luiz is the Founder and VP of eCommerce at Hammock Town. I’m trying to figure out how to effectively hang my hammock in my US style home, without risking a drop from any height. For a 10-foot hammock, you would need a distance of about 9 feet. As the horizontal component in one suspension cord has to remain the same as in the other (or the hammock will start moving) this also means the angle between the suspension cords and the horizontal plane will change. You’ll have to experiment, but in my experience you will need to lower the hang point about 12 inches for spreader bar hammocks than what the calculator lists. Photo by Topsy Design . Speed and velocity of the sitting action can add more force than just the weight. I want you to enjoy the app too. Are there plans for a Windows Phone version? I seem to have Metal studs in my wall, how would I go Of doing this? 9:07. Hammock Dutch PolyD. […] You can calculate the correct height to place the hammock by using a hammock hang calculator. – Distance between anchors 4.1m, Hamcock length (handle to handle lied flat on floor) is 270cm – Sit height circa 80cm You should look for, The general rule is that we should aim for a, The ends should be tied at roughly the same height, making a, The general rule to find proper hammock length is. Start with those and then adjust. The Only Hammock Knot You'll Ever Need: How To Hang … It’s a great starting point if you’re are going to set permanent anchors in your living room, for example, or for estimating a hang point when camping. I have a probably silly question, but I have a cotton hammock and it seems to have no, or basically no suspension length. Packaged as a set of two, they are 3 in. Calculate 83% of the length of the hammock as a starting point. This distance prevents you from hitting the ground when you lay on it. Is it ok to do it this way or should I put in a new hook higher for the foot of the hammock? There are just too many variants to keep track of. Veranda Deluxe Framed Hammock and Stand Cover. Luckily, a hammock hang calculator will do most of the thinking for you. Lorenzo. usually what i do is: The ridge line is not a necessity. Also, any good ideas on how to shorten this type of hammock, should I just tie knots? Derek, I bought the app for my samsung, and the clino is off 10 * right high. First is the weight, or the vertical force. Falling is so not on my list of things to do. Ill also ask the developer. Mark the spots on the tree where you’ll put the tree hooks, and drill a pilot hole in each tree. This tool is best used as a way to figure out approximately how high to attach your hammock. I keep seeing on hammockforums and in a Shug video that the ridgeline should be about 83% of the length of the hammock, but if I’m understanding how this is calculated it should be closer to 87%, right? I wasnt complaining, just trying to figure out a solution. Keep in mind that “rules” like “30 degree hang angle” and “83% of the length” are just starting points and suggestions but they gloss over other factors like hammock size, lay angle, and occupant height / weight. Try reloading the app. I like the calculator, but this has been bugging me… How can it calculate sit height with a ridgeline without knowing the hammock length? Premium Heavy Duty Polyester Hammock Tree Straps (2-Pack) by Smart Garden (8) $ 32 99. Thanks so much for everything, you’re so much help. What else? They do not factor into the suspension length per se. I think I will experiment with lengthening my ridgeline a little, which should allow me to hang my shorter hammock at a little tighter (shallower) angle. Phil. Please see the screenshot below..https://www.dropbox.com/s/pddzed2geo0aaqb/2014-08-14%2002.35.29.png It should. What would be the formula / calculation to determine the tension on a fixed ridgeline? If the distance between the trees is 12 feet, the approximate height of the attachment points should be 5 to 6 feet. -Slbear. But before you can enjoy your hammock, you’ll need to figure out how to properly hang it. That is why we want to share with you the idea where you are able to hang a Never mind. I’m planning to do something exactly like that. They had a safety rating of 325 lbs and they’ve been working great! Thanks to the tool we determined: Hammock length (10.4 ft) - an estimate of our hammock length. Same with the inward pull. Great Stuff Plug the numbers in and adjust the hang distance and hammock length and the suspension length will change or turn to zero, […] the hang calculator to determine the hang […]. Any thoughts on this. It shows a labeled image that displays all of the information you input so you can easily interpret the results. Thanks for your efforts! Any updates in future? I sometimes get “missing apps” in the app store too. I went down to my subterranean laboratory and came up with some numbers. This is a great aid and it would be even better if we could fix the vertical height so the parameter we can change is the suspension distance from a fixed height to hammock ends. According to the calculator, for the 30 degree angle with sit heights of 20″, 24″, & 28″, the heights for hang points are 44.2″, 48.2″, and 52.2″, respectively, with a -7.5″ suspension. Reason I ask, seen straps rated at only 200 lbs, so given the hammock is rated at $400 lbs, they seem to think it’s enough. So x=2 y /tan(alpha). Trying to find one to fit. Todd, not to worry! Thanks. Finally the horizontal component can be obtained through multiplying the cord tension with the cosine of the angle, or by means of Pythagoras’ theorem. I entered the hammock length (ENO single nest) as 112 inches. It’s not for lack of desire, but lack of funding. […] are starting to prefer swinging gently over the campsite to pounding stakes. This calculator is useful on the trail, in the backyard, or if you plan on hanging a hammock indoors. Is it still available? Wow….took a while to get through all the comments. Before I even think about height or distance I’m concerned Now the hammock has suspension cords on two sides and Newton’s First Law of Motions tells us that the sum of the horizontal components of all forces (the cord tension in the two suspension cords) has to add up to zero, otherwise the hammock will start moving in the horizontal plane. Looking at your calculator, it looks like whatever cord is used for the Ridgeline will have to be strong enough to withstand 2x the Shear Force. Is the “suspension length” number for each side, or is it a total length for both sides of the suspension? To find the tension, we use the Pythagorean theorem: We know Fv, it’s half the weight of the hammock, but we still need to know Fh. Can’t seem to get a hang height no matter what values I put in. The ridgeline is going to be shorter than your hammock. New to the whole hammock thing but enjoying it so far. […] building your hammock (straps, or whoopie slings, or whatever you use) you can check out this site: Hammock Hang Calculator – The Ultimate Hang To figure out who long your suspension needs to be… I started with how high I could possibly […]. Suspension Length [What length should the supplemental tension be?] This is why the “magic” 30-degree angle is recommended beyond making it easier to sleep on the diagonal. Google+ Comments. Thanks for doing my head in – as a previous post said, ” falling is not on my to do list !! I just uninstalled it and re installed it and i keep getting the same code as above. Suspension Dutch Whoopie Hook. Preferred Hang Angle [If this hang angle proves uncomfortable, I can enter a new variable to determine new hang point and new suspension length], The dependent (resulting) variables should be in GREEN: What do I do? Please advise. My wife said this was better for her she has a bad back. The SingleNest also comes with strong wire gate carabiners and a nautical-grade line to hang the hammock, allowing it to safely and securely support up to 400 pounds. Figure out how long your suspension lines need to be, even if you have a built-in ridgeline! The developer has assured me that the new version fixes all this and we have been trying to figure out how to get it updated as soon as possible. What about when one anchor height is different from the other. I just got a hammock and i don’t know a thing about them. I think there might be a bug because it is suppose to lock either the angle or the ridgeline depending on what is selected, otherwise the calculator won’t work. The minimum hang distance between anchor points is roughly 1 foot shorter than the hammock is long. Stretch in the hammock also creates an issue. I’m not that heavy, just want it to be sturdy, and again be cautious with the building structure. You have been offered a refund. S = Sit height Could you tell me how the ‘virtual’ ridgeline is calculated (iam not using a fysical ridgeline)? For example, if you know how long your hammock is and how far apart the anchors are (e.g., inside a room) you can punch in the numbers and get the height where to set the hooks (or tree straps, etc). It’s the load on each side. In any case, I have a HH Expedition Asym Zip coming for my son. The expression for the weight force in line 172 seems to be correct but isn’t executed because of the prior error. The best places to hang are from to trees, one 4″ in diameter and the other 12″. A really taut hammock at 600lbs (5 degree angle) would exert a whopping 3442 lbs per strap!!!! Angle: 30 Its a good tool thanks. Smaller hammocks that are about 9 ft long will probably work but the attachment point will be right at the limit. Other hammocks need a short suspension to reach. Let’s keep it friendly guys. This site uses Akismet to reduce spam. The Hammock Hang Calculator – For more specific questions like how high to hang your tree straps, or a specific measurement for indoor hanging, check out the hammock hang calculator from The Ultimate Hang. To do some math: T = tension; Fv = vertical force; Fh = horizontal force; W = weight, α = suspension angle. It doesn’t account for odd angles or having one end higher or lower. I was just calculating my ridgeline length with the 83% rule. The Hammock Hang Calculator lets you calculate how high to set your anchors based on the size of your hammock and distance between points. The reality is that I don’t have the funds to maintain the app version. Most parachute nylon hammocks have weight limits of 300 to 450 pounds. On weekdays you can find him working from coffee shops around the world and exploring unchartered territories with a hammock on the weekends. The calculator doesn’t account for dynamic issues such as this. In This Article,We Will Talk How to hang a hammock on a porch.It is clear that the best place for a hammock is between two trees. No suspension required. Should I chose “Hammock length” instead and measure from loop to loop (the loops at each end)? 15 years, so far, so good. In theory, a hammock strung perfectly horizontal (0-degree hang), the horizontal force would be infinite. Derek, So... what are you waiting for? Love the app. I went to downplay the hammock calculator from the Google Play Store and just about every review said it wasn’t working on their phone (I have a Nexus 5x, which a few said it wasn’t working on), giving it a 1.8 rating. For exact calculations, visit the website. Hope that there is hope for this app, as I would really like to make use of it. Insulation HG 0, 20, 40. Strap length (includes rope and hardware): 56 I’m not sure. It depends on your hang distance. When you consider all the forces that are or could be at play, you’ll see that this isn’t such a simple calculation at all, although the calculator itself is only doing the most rudimentary calculation. I was thinking on using a 2 x 4 long enough to reach two studs (between 16 in and 24 in) placing it horizontally. Is get the Vario stand. Since you can enter both a ridgeline and a hammock length, does the app account for the hammock sag when calculating Hang Point? I plugged in the Wallaby size (8’4″) and was surprised that nothing changed except the suspension length. […] not wanting to see each other gain. What you are looking for in gear is “safe working load.” When hammocks are rated, for example, they take the breaking strength and then reduce that by a factor to get the safe working load. No, the ridgeline is not the same as the size of the hammock. Or is that calculation the total between the two suspension lines? I posted this question on Hammock Forums and the people who responded seemed to agree that you need to raise the suspension with a shorter hammock. The most accurate measurement is if there is some tension to take up the slack, but not fully loaded. Some of those hammocks can be as long as 14 feet or more. 0. Yes, taking the hammock off center has a similar effect of hanging one end higher. Leave a number, even if zero (0) so the app doesn’t kick back a non-number error (NaN). It seems almost counterintuitive that more force is being applied than there is weight in a hammock, as if you magically gain weight. Feel free to get back to me draggynsmate (at) MSN dot com. You’ll find that you’ll need to lower the bridge hammock about 2 feet lower than a gathered end hammock would typically. Re. Great! This is a very handy calculator. I’m trying to hang two hammocks in one room, to resemble a bunk bed, a bunk hammock, I guess, but would like to divide the force of each hammock between two studs, just to be on the safe side regarding the structure of the building. by Vivere (13) $ 14 97. Hammock straps are often given a safety factor of 4:1 or 5:1, so the weight you see is the working load limit. I’d love to have your calculator on my phone without internet! This is important because they consider the dynamic aspect of hammocks, just like climbing gear: as you move about in a hammock, you exert different amounts of force. Awesome! Awesome! Currently, the hang point is not editable because it is a result of the hang angle you want, the sit height, and the distance between anchors. You can’t lock both, it doesn’t work. A search in the Amazon app store did not find the app. Built using WordPress and the Mesmerize Theme. I also own the Vario an it has an adjustable base and arms so it can accommodate more hammock styles. I know how to calculate the hangheight but need to know what the ridgeline will be to calculate the suspension length. The web version should work on any internet browser. The answer would be as simple as dividing the gravitational force in half (e.g., the weight in the hammock). then just calculate the ridgeline to be sit height + ridgeline height off the ground? Calculations happen and when I look the ridgline length is filled in as 112. on the online calculator it indicated 97 inches. My Hennessy is only 9.5 ft long when laid down flat, but you’d have to detach the ridgeline in order to pull it out flat. The minimum distance required is equal to the total length of the hammock. Your email address will not be published. It is a really cool tool! Any decent calculator app is going to have trig functions, so people can make these calculations. One question…I want to hang my hammock closer to 1 end than the other. Otherwise neat and easy to understand calculator. Suspension length 105.5 cm You are correct. A 20-28″ ground clearance seems suitable (pretty sure space constraints will force entering the hammock from the bed…) and I think anything between 30-45 degrees would be ok for the hang angle. Strap length (includes rope and hardware): 66. I’m not sure if I’m understanding clearly, so let me restate. Then if your angle is 35 degrees, the calculator still tells you something. 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