The thickness of a bronze wall plays a critical role in determining the longevity and resilience of a sculpture. Thicker bronze walls inherently provide greater structural integrity, reducing the risk of cracks or deformations over time. This added mass helps the artwork withstand environmental stressors like temperature fluctuations, humidity, and physical impacts.

Thin-walled bronze sculptures, while lighter and more cost-effective, are prone to faster wear. They may dent easily or develop stress fractures, especially in outdoor settings where wind, rain, and pollution accelerate corrosion. Conversely, thicker walls offer superior resistance to oxidation and erosion, preserving fine details for generations.

However, excessive thickness can introduce challenges. Overly heavy sculptures require reinforced bases and careful installation. The ideal balance depends on the sculpture's size, intended location (indoor/outdoor), and artistic requirements. Proper patination and sealing further enhance durability, regardless of wall thickness.

Art conservators emphasize that medium-thickness bronze walls (4-8mm) often provide the best compromise between durability and practicality for most freestanding sculptures. This range ensures longevity without sacrificing artistic expression or feasibility in casting and installation.