How can I determine the strength of a wood filler for my project?

To determine the strength of a wood filler for your project, you can consider factors such as the type of wood filler used, its bonding properties, and its compatibility with the wood surface. Additionally, you can test the filler's strength by applying it to a small area, allowing it to dry, and then subjecting it to stress or pressure to see how well it holds up. Conducting research on different wood fillers and reading reviews from other users can also help you gauge the strength of a particular product.