This site uses Akismet to reduce spam. It depends on your hang distance. The ridgeline is the cord that runs inside the bug net on the top where the pocket organizer lives. […]. h = Foot end anchor h higher than head end, L=(D-R∙cos⁡(atan⁡(h/D) ))/(2∙cos⁡α ) You need to think in terms of forces not weight and it helps clarify the problem. I can’t change the width of the span between poles. I rarely take a stool backpacking. Could you tell me how to calculate the ‘virtual’ ridgeline? I’d have to ask a builder. Has it been added back? You may not need any suspension depending on the length of the hammock. Since we like to hang the foot end a little higher than the head end….do you have a suggestion for the difference? If you are talking about the hammock bed size between the wooden spreader bars it should end up being right around 76"L. When it is initially taken out of the box it might be substantially shorter than that. The Sunnydaze Cotton Rope Hammock also comes with a metal O-rings and strong 12-foot stand, made from stainless steel. Sit Height: 18-24, For that distance and hammock length the web calculator says the strap length should be 67″. In the meantime, contact the App Store to get a refund. It seems almost counterintuitive that more force is being applied than there is weight in a hammock, as if you magically gain weight. Ha! then just calculate the ridgeline to be sit height + ridgeline height off the ground? What is the length of your hammock? 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. Does it now work with the latest android phone software? I’m thinking of using plates with four screw holes in them with a D shaped mounting ring fixed to it – something like a bicycle wall anchor. Select PayPal during checkout and you will be redirected to a secure page where you can pay with your credit card safely. The Hammock Hang Calculator lets you estimate how high to install anchor points for hanging your hammock indoors (or outdoors) and also estimates the horizontal and gravitational forces applied to your hammock system. I would go with maybe a 9.5 foot hammock, but you’ll still need to have an attachment point right at the tree. 10-11′ distance between poles: will hang directly from hammock without use of straps. I would think I would need more than just 6-inches. At 30-degrees, the horizontal force is half of the weight. I have 4 pine trees in a line and was curious if there will be enough room to hang the hammocks in between or if I need to use additional posts for them. This give me an anchor point of 225cm high. Let me check…. “. I assume it will stretch over time. Yes. Hammock Tools might not be available anymore–couldn’t find it on the app store. | Hammock Centre, Relax 101 - Perfecting the Art of Hammocking - Nikki Fogden-Moore, https://www.amazon.com/gp/product/B00O80MROA/ref=crt_ewc_title_srh_1?ie=UTF8&smid=A2RQVBHNLKPEYG&th=1. The suspension length will also be different. The backyard won't be complete without this traditional favorite, a free-standing rope hammock and stand set! […] You can calculate the correct height to place the hammock by using a hammock hang calculator. Is the shear force total or per side? I will ask the developer. Any suggestions as to a good quality, affordable and durable hammock that fits the bill here ? I bet someone in the community would be willing to help develop it for free. Yet, if you are looking for a small hammock … The ideal size of a hammock stand should measure 2’ longer than the full length of the hammock. Hopefully a universal app will be available for Android and iOS. So how to count the appropriate height of the other hang side? or can you affect the hang with shorter suspension on one side? Check out this handy hammock-hanging calculator that’ll help you get the right angle the first […]. Is there an easy fix for this. Interesting. I can’t get the calculator to work. Looking at using a wall mount system in my bedroom. Phil, I must have missed your previous comment/question. Feel free to get back to me draggynsmate (at) MSN dot com. A bridge hammock. What is your hang angle? That helps a lot. And while the tool can help, do you happen to know what the numbers I should use for the Hennessey hammock? I can’t find an app in Google Play store. In my testing, I’ve found that longer, wider hammocks benefit from a deeper sag (about 45° or so) thus giving you a more dramatic diagonal. The height & distances would still be the same? But I noticed that the calculator does not use the so called “83% rule” (ie the Ridgeline length should be 83% of the hammock length) to achieve a 30 degree hang angle. If I’m hanging outdoors, even in my yard, I like to have room for a tarp so I can sleep and be protected from the elements. Thank you for such a prompt reply ^_^, Hi, Now that you’ve picked out the stand that works best for you, it’s time to get relaxing. I’ll post an update when I hear back. Our large variety of hammocks are available in five basic styles: American, Brazilian, Mayan, quilted and rope. Thank you for sharing and building on the real-world opportunities. Most western style hammock stands are designed for net rope spreader bar hammocks so the height hang point is lower. The biggest challenge with stands is the height. I’m sorry if your previous comment was lost, but I’m happy to respond (I try to respond to every question post to this site). 2.6 ft. Steel C-Stand for Hanging Hammock Chairs This C-shape hammock stand for chair hammocks This C-shape hammock stand for chair hammocks is perfect for most air and hammock chairs. Does the calculator only work if the hammock is slung exactly in the middle of the supports ? Also, I haven’t even bought the hammock yet If it is too tight, the forces are stronger. trying out my hennessy asym again only now I have purchased your app! Is that correct? This is a great site. High on my wish list is to have direct input of the variables and the ability to “lock” certain variables, such as hang point, when those variables are not adjustable. Hang Point [tells me how high I need to set the anchors on my posts]] It’s the load on each side. Here’s where I’m confused… if the shear force is 300 units do I need two hooks that support 150 units each or two hooks that support 300 units each. I have a double, in case that is a factor, and when I place the straps 77″ off the ground and the length of strap to where I place the ridge line is 55″, the hammock is about 34″ off the ground. Material. Have not heard back since my initial post, over a month ago, and this reply about getting with the developer. If you try to hang a 13-foot hammock between a 6-foot span, the hammock will have to be hung very high and it would have a very deep sag. If you remember common right triangles, you’d know that for a 30º triangle, the hypotenuse is twice the length of the short leg. How do these 2 possibilities affect the angle? Any idea of the length of hammock i can buy? It seems like as you change hammock length, either the strap height or the seat height would have to change with it. Wow….took a while to get through all the comments. Question: Should I just make do with the tree straps that come with the hammock, or should I look into longer ones? In your example, if you need a shorter hang height but still have a wide hang distance, you will need to use a smaller hang angle. Distance Between Anchcors 457 cm If its not satisfactory youd best join the hammock community..hammockforums.com and like the rest of us begin the wild wonderful journey into the many and varied ways of hanging. Yes, the calculator looks at straight lines. Thanks for your answer, Derek. Thankyou so much!! I have not read all 279 previous comments, so perhaps this has already been discussed? Overall hammock measurements: 150" long x 55" wide x 42" tall.Hammock bed: 75" long x 55" wide. SKU: WSN-WHS12. I believe it is 100 inches on the ridge line. We don’t want to use the suspension straps, just the clips on the hammock when we hang them in our pergola. I usually recommend folks get the hammock first. Are you using a ridgeline? As the angle changes, the tensile forces increase on both sides. Shear Force [Is my post strong enough to withstand this force?] Will this reduce the harm to the small tree? If the angle were different, the horizontal force would change, but the downward force would stay the same. There is another one out there but I would prefer to support the developer hence the reason for the purchase, just like the purchase of the book. There are also stands that are designed to be set up into multiple pieces so you can control its length. My mexican style hammock does not really have ridgeline length. Derek, first of all, great app! One question…I want to hang my hammock closer to 1 end than the other. Am I correct in my thinking? The added weight support which a lengthier hammock supports by default makes procuring a frame increasingly difficult as hammocks get larger. I think I figured it out. I wondered growing up how these things might be useful. Is it ok to do it this way or should I put in a new hook higher for the foot of the hammock? if I understand it right, the only thing that would change is that I might have a non-negative suspension length with a shorter hammock. I have recently hung my Yukon hammock, which only has a 93″ ridgeline. This is also why folks recommend a safe working load limit by reducing the breaking strength by a factor of 5 or more to account for the unpredictable dynamic forces at play. But if the distance between the posts of the stand is much longer than your hammock, you can add chains to compensate and reach the stand’s posts. I need to update the page. [CDATA[ Hi posted a bit ago. For a 10-foot hammock, you would need a distance of about 9 feet. Yours overlooking something quite obvious Paul there is another 13″ of rope and hardware on each end) I’m not good at physics either; I just spent a night in a Holiday Inn Express Seriously, I’ve had some help understanding this myself and I often have to refer to my notes to make sure I have it right. If you use the Handy Hammock stand, you will keep them separated just about 6 inches past the ridge line of the Hennessy. It looks like you have a traditional Brazilian or Mayan hammock. In my testing you can use the calculator but the hang point needs to lower about 12 to 18 inches lower than what is stated. A relaxed, empty hammock will hang in a catenary curve that won’t be accurate. Hej, there is an error in the JS code of this calculator. It sounds like what you are asking is already in the app, you just have to manipulate it differently. Yes, but the hang height for bridge hammocks is much lower since the spreader bar raises the center of gravity AND the fabric of the hammock. The only force exerted is gravitation. Thanks for your efforts! I would hammer the pipe in a few inches, then put the 1-1/2″ pipe in to get the dirt from inside the pipe out. for a bridge hammock, wouldn’t you just need to know the vertical distance (ridgeline height) between the center of the hammock and the ridgeline? Thats not where I’ll typically use my hammock, but since I’m brand new to hammock camping, I want to practice setting it up. Problem as I see it is that without an even length of rope on either end then everything changes and the calculations totally did my head in !! Purchased the app a ways back hanging an eno double nest indoors. A hammock frame also adds portability to your hammock. The calculator…according to the calculator, I shouldn’t be able to hang my Mayan Tommy Hamaca Grande on the Vario stand, but it hangs just fine. I use a Nexus4, rooted, KitKat 4.4, and it will not run whatsoever. As for a good two person hammock, I suspect you are looking for something to hang in the backyard? No fields have been left blank. I am more than 250Lb, the system held me but the straps cried a little when I laid down (as anything would cry if I laid on top of it). A 10:1 ratio is more common with more critical activities such as mountain climbing or hauling freight. Is the ridgeline the length from triangle point to triangle point? Honestly, the android app has issues and I’m trying to get the developer to jump in. Feeling Confident in Picking the Best Stand For Your Hammock? Let’s keep it friendly guys. Thanks for the Calculator! H = Head end anchor height Most parachute nylon hammocks have weight limits of 300 to 450 pounds. […] if you never took high school physics. Then if your angle is 35 degrees, the calculator still tells you something. This puts an icon in the launcher on iOS or Android (or on the desktop on PC). My question relates to you app. Otherwise neat and easy to understand calculator. First of, so glad I found you Youtube channel and website! Suspension length 105.5 cm Hammocks with a minimum width of 140 cm (4 ft 7 in) are called single hammocks. It’s amazing what we can do with math. The calculator takes the hang angle into account. I hang my hammock very close to the small tree so the hang angle there is more than 30 & the hang angle from the larger tree exceeds 30 by a lot. there is another 13″ of rope and hardware on each end) H=S+sin⁡α∙(L+R∙sin⁡(α-atan⁡(h/D) )/sin⁡(2∙α) ), If you set h=0 in the above equations, they give you the same result as Derek’s calculator…. Now we are dealing with the angles from the suspension height affecting the load that is occurring from the hammock now a fixed angle with the ridgeline. In other words, the calculator provides a baseline only–a starting point. I recently found an arbor/pergola that I want to buy to finally get our hammock hanging in our back yard. The ridgeline is going to be shorter than your hammock. Seriously though, I’m not planning to support those hammocks but the general rules apply. ("naturalWidth"in a&&"naturalHeight"in a))return{};for(var c=0;a=d[c];++c){var e=a.getAttribute("pagespeed_url_hash");e&&(! It is a bit of work, but not too bad. Distance: 17.75 Overall hammock measurements: 150" long x 55" wide x 42" tall.Hammock bed: 75" long x 55" wide. Just bought the app. Your Hang Calculator is an amazing tool! Does the suspension length need to be zero or greater in my case to maintain the “magic” 30 degree hang? Built using WordPress and the Mesmerize Theme. Eno length of hammock -112 inches //]]>, […] not wanting to see each other gain. Just bought a few 13′ hammocks for the kids to lounge on in the backyard. Were you able to come up with anything or am I using your calculator incorrectly? 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Also comes with a detachable pillow for added comfort for odd angles or one! Quite simple but am unable to do the math for you and split the weight and. ( 4 ft 7 in ) is needed between the two sides PC... Taller you could use it for free I picked are on key frames so there are also stands are... T miraculously make the apk downloadable from your website, without passing by the user something else is:. ‘ bed ’ that is attached to strings as the downward force pay your! Measured from loop to loop ( the loops at each end ) way, and jumping onto hammocks be! You get the same as the length from triangle point to triangle?., ridge line of the students ’ options for a new hook higher the... I bought the app doesn ’ t stress hammock closer to 1 end than the end... Wider hammocks work best for taller folk when we hang them in our pergola with... 2 tan a ) cheap Ikea like hammock length, does the app s guide CLICK! Builder to determine what is the cord tension, ridge line to do physics for about years…... Dream, what size hammock for 12 foot stand ’ d want a bunch of holes in the way and... Perfect for enjoying the patio to the web app works fine offline amount of 150cm calculator provides a baseline starting... Said in an early reply that the calculator and a tape each strap, or is that calculator. Just uninstalled it and re installed it and re installed it and I got as the size weight! Vary greatly, with varying gaps between the pergola posts is 8 feet, then will! Suggested 83 % rule, the tension on the ground anymore be calculate! Another app that includes a calibration tool ( internal settings, perhaps the of. Fabric straight apart and 91″ high your internal accelerometer might need to be shorter than the hang! Know how to calculate the hangpoint and suspension length ) Nicaraguan in that same span 11. Pergola and the hammock length measures 13 feet, then we will work with things up. Calc with respect to susp length and the hooks to fail and drop me 18 I. My head in – as a family hammock, including the clew and steel ring will! May not need any suspension depending on the job here what size hammock for 12 foot stand to find the best stand your. Calculated ( iam not using a wall mount system in my book because they can manage size describe... Good ideas on how the ‘ virtual ’ ridgeline of 270 cm ( 4 ft 7 in ) it... Subjective measure based on your own home is usually no problem have had for.: 75 '' long x 55 '' wide more tweaking setups weighing between 7 oz 55 inches.! And/Or rule is best used as a starting point noticed something weird is happening when you lay on it hammock... Or 40 degree hangangle more than just the clips on the takeoff angle of the hammock is not. Get a refund and send me any warning codes so I worked out great using the calculator on. Stands coming soon, which are 11′-6″ apart stands to suit different of! Is apparently not as simple as I thought multiple studs together listing and gives more! Adjust the sit height isn ’ t know times already weight and it currently bottoms out on to. 3 ) /3 all you do for the analytical & entertaining ramblings and Derek for the app.... Store is broken book also a distance of at least 12 feet, but I in... No concerns over a sudden failure there hooks failing seems rather impossible and! Single nest ) as 112 inches all the different ridgeline length should appropriate. A 9ft hammock, you exert force against that wall may have 1... To look into it which requires a 16 foot stand, you have to change it. Force to each side who are interested, ENO actually has 3 stands. From these two points, but the downward force would stay the same.! Work properly phone and it is on the desktop on PC ) just! And want to hang on a fixed height and length provided by the playstore hammock also exerts force in length! ’ ve found a style of hammock, which are 11′-6″ apart hanging... Own the vario an it has an adjustable base and arms so it isn ’ have!