There aren’t strict height limits for tree climbing, but safety depends on several factors. Before climbing, it’s important to check the tree’s health, strength, and overall stability. Things like the tree’s diameter at different heights, wind conditions, and the climber’s weight all play a role in how safe it is to go higher.
Some guidelines, like those from the USDA Forest Service, suggest being cautious when the tree narrows to around 4 inches in diameter. The ANSI Z133 standards also emphasize staying tied in with a proper climbing system at all times.
Ultimately, the safe height varies based on the specific tree and conditions, so proper assessment and safety measures are key.