![]() Cable SlingĬable Slings are designed to wrap around your anchor whether it be a tree or a pole. It is used to make adjustments to how much slack your cable has. ![]() TurnbucklesĪ turnbuckle is a device for adjusting the tension or length of zip line cables. lbs of torque and 3 cable clamps, 1-2 inches apart. It is durable and flexible and you can find out more about all the cables here.Ĭable clamps or U-Bolts are used to secure dead ends of cable. We highly recommend using Galvanized Aircraft Cable for zip lining. I’ll note them down below with an example of a 100 foot kit. If using a bungee braking system, the maximum slope is 6% or 6 foot drop per 100 feet. This means there would be a 3 foot drop every 100 feet. We recommend a 3% slope for zip lines will be only utilizing a stop block. You want to take this into consideration as you don’t want your rider’s feet to be dragging as they ride. An example of this is a 100 foot zip line would have 2 feet of sag. The simple formula is (Length of Zipline) x (.02). ![]() We recommend a 7ft clearance around the entire zip line, free from branches, rocks, or any other obstacle.Ĭable Sag is the amount the zipline drops when a rider’s weight is added. Please use common sense or consult an engineer!Ī safe zip lining tree has at least a 12-inch diameter around its trunk. You cannot attach the zip line cable to a branch under any circumstances. Do not choose trees that are rotten, old, have cracks or rooted in loose soil or sand. Up to 3,000 pounds to be exact, which is more than a ton. These trees need to withstand a lot of horizontal force. Seems pretty simple, but there’s more to it. I mentioned in the paragraph above to choose two trees. Next we’ll talk about all the requirements for a safe install in the next section.ĭeciding on an anchor will help you secure the zip line firmly in position. Most zip line kits go up from 50 to 500 feet, in 50 foot increments, so you’ll need to decide what cable length suits your scenario. Measure and track these distances in feet. Check out this article if you want to install a zip line without trees. You might already have a spot in mind, but it is always good to have a couple different options. The first thing you need to do when installing a zip line is of course choose a location! Ideally in your backyard or on your property, you’ll need to find two trees that have a direct path towards each other. We will go into depth from start to finish on how you can safely and reliably come up with a zip line design that will satisfy your family for years to come. It may seem daunting at first as there are so many factors do I have to calculate slope and sag, what are the height requirements, can my home accommodate a backyard zip line kit. Whether you're looking to build a backyard zip line for do-it-yourself style or you're thinking about buying a kit you first need to understand the basics.
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