What is a through brace in tree support?

• A. It goes entirely through the tree and is fastened at both ends with washers and nuts
• B. It attaches to the outside of the tree only
• C. It braces from the ground to a limb
• D. It is a decorative feature around the trunk

Answer: (A)

A through brace is a type of support that passes completely through the trunk or limb and is secured on both sides with washers and nuts. This setup creates a rigid, fixed connection that resists bending and movement by anchoring the brace inside the tree and out the other side. It’s used when you need strong internal stabilization, such as at a weak crotch or where decay requires stabilization. External braces or straps attach only to the outside, a ground-to-limb brace isn’t through the trunk, and decorative features have no structural role, so they don’t fit the concept of a through brace.