How to Select a Safe Branch for a Tree Swing

The top 5 things to consider when selecting a branch for a tree swing.

Tree swing hanging from a healthy tree in a field

Say you have a sturdy hickory or majestic oak tree in your backyard. Some branches arch far away from the trunk and there is lush, mossy grass below. It seems like the perfect place to put a tree swing.

But how do you decide which branch to put the tree swing on?

We put together the top 5 things to look for when selecting a branch.

Tree branch with visible rot, not suitable for swing

Do you see any rot or decay?

Inspect the branch carefully. Are the leaves out in the summer? Do you see a lot of mushrooms or decay? If you don't see leaves, but you do see a lot of mushrooms, you might want to pass and find a healthier branch. Also, be on the lookout for any large cracks or signs of wood-boring insects.

Tree branch with split, unsafe for swing

How big is the branch?

It might make sense to pick the most prominent branch, but it can be dangerous if it's too big. Branches that are more than 50% of the diameter of the trunk have less stable connections to the trunk and can break under their own weight.

Measuring safe distance for tree swing installation

Where is the branch located?

A branch should be long enough so that the swing doesn't hit the tree trunk when swinging. Make sure that it is well-spaced away from other branches so that the ropes or straps don't get tangled.

Exposed tree roots under potential swing location

Don’t forget to look down.

What is underneath the swing is just as important as what is above. Don’t place a swing over large, protruding roots or hard surfaces like asphalt or concrete.

Tree swing attached with protective tree strap

Use tree straps.

Using a rope or a chain can girdle a tree over time. This will eventually make the branch unsafe. Tree straps are wider and do less damage to the branch. If you can reach them, change the straps' location every few years so that the tree can heal.

These guidelines will only help you select an ideal branch. There are many other things to consider when installing a tree swing. If you want to be completely certain that a branch is safe, consult one of our Treecologists.

Healthy (and safe) Trees, Happy People.

Frequently Asked Questions
How big should a branch be for a tree swing?

It might make sense to pick the biggest branch, but actually if it's too big, it might be more dangerous. Branches that are more than 50% the diameter of the trunk have less stable connections to the trunk and can break under their own weight.

What should I look for in a branch for a tree swing?

Make sure it is free of rot, cracks or wood boring insect damage. The ground underneath should be free of roots or hard surfaces. It should be no bigger than 50% of the trunk.

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