What is the maximum depth of notch that can be cut into a joints that is 240 mm?

The maximum depth of a notch that can be cut into a joint typically depends on the material and the specific design requirements. Generally, for a joint that is 240 mm thick, the maximum notch depth is often limited to about one-third of the thickness, which would be approximately 80 mm. However, it's essential to consider factors such as load-bearing capacity and structural integrity when determining the exact depth. Always consult relevant engineering guidelines or standards for specific applications.