Slackline Manual

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Online Version

Please review the Disclaimer prior to using your slackline.

Never leave a slackline unattended as that may provoke accidents to third-parties. Always use common sense and use additional objects such as blankets, flags, tape, music or lights to alert any person who may not be suchaware of the slackline. Absolute Slacklines will NOT accept any responsibility for treeany accidents or damages caused by misuse or failure of the equipment.

Assembling the Slackline


The webbing:

50mm (2 inch) wide polyester webbing with covered strap


The Ratchet:

Fixed to a 2m (6 foot) long x 50mm (2 inch) wide webbing with covered strap


Anchoring the Slackline:

The slackline must only be fixed to trees that have a minimum diameter of 30cm (12 inches). DO NOT ATTACH THE SLACKLINE TO ANY TREE THAT CANNOT WITHSTAND A MINIMUM FORCE OF 2200 LB (1000kg).  It is strongly recommended that you use tree protection pads, a carpet or soft rubber mats in order to avoid any damage due to the slackline.

Anchoring the Webbing:

Locate a suitable and safe location with two trees, with no hazards, obstacles, projections, or other dangers nearby.  Wrap the webbing flat around the tree trunk at a height of approximately 50cm (18 inches).  Thread the webbing through the strap to form a noose around the tree trunk.

In order to align the webbing horizontally and prevent abrasion, fold the webbing in a U shape at the place where it threads through the loop end of the strap.


Anchoring the Ratchet:

As with the webbing, find a suitable and safe location with two trees as described in subsection 3.1 (Figure 3) above with no hazards, obstacles, projections, or other dangers nearby. Wrap the webbing attached to the ratchet flat around the other tree trunk at a height of approximately 50 cm (18 inches) (Figure 5). Thread the ratchet through the strap to form a noose around the tree trunk.

To reduce the risk of serious injury and/or death, install the ratchet with the lever facing down toward the ground as shown below.




Connecting the Webbing to the Ratchet:

Release the ratchet (pull on the small lever inside the ratchet) and open the main lever.




Thread the webbing through the slot in the axle and pull the webbing through the axle until the webbing is taut (i.e., there is no slack in the webbing).

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Once the webbing is taut through the axle, use one hand to hold both sides of the webbing together. Begin tightening the ratchet.


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NOTE: In order to avoid malfunction of the slackline, the webbing SHOULD NOT exceed two and a half rotations around the axle of the ratchet. Use only your hands to manipulate the ratchet.

The maximum tension on the lever of the ratchet must NEVER exceed 85 lb (38.5kg) to avoid malfunction and/or failure of the system that may result in serious injury and/or death.

As soon as the webbing reaches the desired tension, check the ratchet to ensure that the bolt rests neatly in the cogging and bring the lever back up to a horizontal position parallel to the webbing. DO NOT USE THE SLACKLINE IF THE RATCHET IS NOT FULLY SECURED AND LOCKED.


Tip: The closed lever is a good indicator that the bolt rests in the cogging and that the ratchet is secured and locked.

You may adjust the tension of the webbing according to your personal preference, so long as the tension does not exceed 85 lb (378N/38.5 kg).



Protect the webbing from unnecessary abrasion, sharp edges, and any other rough places. Inspect the Slackline before and after each use and if abrasion is discovered, stop using the Slackline.

Do not twist the webbing as it could cause the ratchet to flip over to the top of the webbing and you can be injured more easily. Twisting also accelerates abrasion of the webbing.


Tip: Use tree pads to prevent abrasion of your equipment.


Walking the Slackline

 Please Click Here for tips on how to improve your slacklining skills.


Dismantling the Slackline

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To release the ratchet pull the safety lever to unlatch the ratchet and open the main lever until the safety lever detaches from the cogwheel and the webbing is released.

IMPORTANT! The webbing is under tension and injury and/or death may occur if not carefully dismantled.

Once the webbing is released, detach the webbing from the ratchet, inspect the webbing for abrasions and damage, make sure the webbing is clean and dry, and roll up the webbing and place it in its storage bag.

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