Less material is not always a better product.
Solid and hollow forms distribute material differently. A hollow decorative body can reduce its mass, but openings, wall transitions and local support become more important. A bookend may need mass in a useful position for stability, while the same extra mass in a hanging ornament increases the load on its loop.
- The product and pack together
The product and package are considered together. Reducing a wall or removing an insert can save material in one place but create a vulnerable area elsewhere. A better comparison asks what function each section or packaging layer serves before removing it.
- Structure before reduction
Wall geometry, projections and contact points influence how the object handles real use.
- Protection with a purpose
Cushioning and clearance should respond to the form and vulnerability of the product.