What is the primary difference between load-bearing and non-load-bearing walls?

The primary distinction between load-bearing and non-load-bearing walls lies in their function within a structure. Load-bearing walls are designed to support and transfer loads from the roof, floors, or upper levels down to the foundation. This means that they are critical to the structural integrity of a building, and any alterations to them can affect the overall stability of the structure.

Non-load-bearing walls, on the other hand, do not carry any vertical loads beyond their own weight. Their purpose is typically to divide spaces within a building, offer privacy, or provide sound insulation without contributing to the structural support. Because they do not bear weight, non-load-bearing walls can be made from lighter materials and designed more freely in terms of layout.

The other options present incorrect assumptions about the characteristics of load-bearing and non-load-bearing walls. It's important to recognize that while it's common for load-bearing walls to be built with more robust materials, they can also be made from materials like brick or concrete. Non-load-bearing walls are not constrained to specific materials or thicknesses; their primary role is to enclose or separate spaces rather than support structural loads.