Creating large-scale public metal sculptures presents unique challenges that test both artistic vision and engineering prowess. One major hurdle is structural integrity - these massive artworks must withstand weather, time, and public interaction while maintaining their aesthetic form. The fabrication process itself demands specialized equipment and skilled metalworkers capable of welding, forging, and assembling enormous components with precision.

Transport and installation pose another significant challenge. Unlike studio works, these sculptures often require careful planning for transportation routes, crane operations, and foundation work at the installation site. Many artists collaborate with structural engineers to ensure their vision can physically stand while meeting safety codes.

Material selection becomes critical at scale. Metals behave differently when enlarged, requiring careful consideration of expansion, weight distribution, and long-term weathering. The financial aspect also looms large - securing funding for materials, specialized labor, and installation often determines what's possible.

Perhaps most challenging is maintaining artistic intent through this technical process. The sculptor must oversee every phase while solving unforeseen problems that inevitably arise when working at monumental scales. These constraints paradoxically often lead to the most innovative solutions in public art.