What type of support can pilasters add?

Pilasters primarily add lateral support, which is essential in maintaining the stability of a structure. They are vertical architectural elements that project slightly from a wall and serve to bolster the wall's strength against lateral forces, such as wind or seismic activity. By doing so, pilasters enhance the building's ability to withstand these forces, ensuring that the overall structure remains secure and upright.

While pilasters can play a role in vertical and structural support as well, their primary function is to counteract lateral loads. This is especially important in taller buildings where lateral movement can be a significant concern. Diagonal support is typically provided by different structural elements, such as braces or shear walls, which is why the notion of diagonal support is not accurate in the context of pilasters.