Tree Netting Calculation Guide

What size netting do I need?

The size netting you need is simple to determine but is important to do before purchasing netting. Too long is always better than too short. Accurately calculating the size you need can save time, frustration and money.

  • To determine what size net you need, measure the height and width (spread) of your tree
  • Add the height and width measurements together, then multiply by 2. That resulting number should be the minimum length of one side of the square piece of net.


((Height + Width) x 2) = measurement of one side of a square net



Tree that is 8' tall and 7' wide 

= ((8' + 7') x 2) by ((8' + 7') x 2)

= (15' x 2) by (15' x 2) 

= 30' x 30' netting required


Choose a width equal or greater than what you need or purchase two and sew together.

For fast reference:

Tree Height in feet Tree Width in feet Square Net - length of each side in feet Similar Size Online Option
5 4 18 AgFabric (Amazon) one 20' x 20' 
6 5 22 AgFabric (direct or Amazon) one 26' x 20' 
8 5 26 AgFabric (direct or Amazon) one 26' x 20' 
10 10 - Net individual branches - measure as for smaller tree above
15 10 - Net individual branches - measure as for smaller tree above

*Note the largest size net we recommend is 34' square and that size will require up to five people to install. Any larger netting is hard to manage and install on its own! If your full tree is too large to net completely, try netting individual large branches with a smaller net.


Have questions? Need help with the net?

If you need help figuring out the best method and net size, send your questions to Luke at [email protected].

Got your net but need help installing? Then fill out the Tree Care Service Interest Form HERE. Installation service is only available for trees up to 10' x 10'.