Shear strength is a material parameter that indicates how resistant a material is to shear forces (see shear forces). Shear strength is therefore an important factor when assessing the stability of adhesives, buildings and structures, as they are often exposed to shear forces.

Shear strength is usually given in Newtons per square meter (N/m²) or in Pascals (Pa). The level of shear strength depends on many factors, such as the composition of the material, the type of load and the temperature. In practice, special shear tests are often carried out to determine the shear strength of a material.

When selecting adhesives for construction projects, it is important to consider shear strength to ensure the adhesive can withstand the demands and provide sufficient stability.