No. The EndRot Kit is intended for cosmetic repairs only.
For repair of vertical load bearing wood components, Sculpwood Max should be considered. SculpWood Max is a reinforced, high-compressive strength, two-part epoxy putty compound. It has four times the compressive strength of standard SculpWood Putty. The high compressive strength makes it ideal for repairing vertical load-bearing wood components such as posts or columns.