The scale of a metal sculpture plays a critical role in determining its structural integrity. Larger sculptures face unique challenges, such as increased weight distribution, wind resistance, and material stress. Engineers and artists must carefully consider the choice of metals—stainless steel, bronze, or aluminum—to ensure durability while maintaining artistic vision.

For small-scale sculptures, structural concerns are minimal, but as size increases, so does the need for robust internal frameworks, precise welding, and reinforced bases. Large installations often require hidden supports or anchoring systems to prevent collapse or deformation over time.

Environmental factors like temperature fluctuations and corrosion also escalate with scale, demanding protective coatings or weather-resistant alloys. Ultimately, balancing artistic expression with engineering principles ensures a sculpture's longevity, regardless of its size.