Are Tree Platform Shelters Safe In High Winds?

Tree Platform Shelters and Wind Resistance

When building a tree platform shelter, it’s essential to consider the tree’s height, size, and type. A sturdy tree with a wide trunk (at least 8 inches in diameter) and a strong branch system can support a platform in moderate winds (up to 40 mph). In contrast, a smaller tree or one with a narrow trunk may not be able to withstand strong gusts.

Designing for High Winds

To increase the wind resistance of a tree platform shelter, designers can use several techniques. One approach is to build the platform at a height that allows it to be out of the range of debris and branches that could cause damage in high winds. This typically means building the platform at least 20-30 feet off the ground. Another technique is to use a wide, flat platform with a low profile, which can reduce the surface area exposed to wind. A platform with a diameter of 8-10 feet and a height of 2-3 feet can be a good compromise between wind resistance and comfort.

Platform Materials and Anchoring

The materials used for the platform and anchoring system also play a critical role in determining its wind resistance. A platform made from durable materials like Douglas fir or cypress, and anchored with high-strength cables or ropes, can withstand high winds. The anchoring system should be designed to distribute the weight of the platform and occupants evenly, and to absorb shock loads caused by wind gusts. A well-designed anchoring system can include a minimum of 3-4 anchor points per platform, spaced evenly around the tree trunk.