Gill Shot/Hammer Circle Form; Aluminum

The Gill Shot/Hammer Circle Form in aluminum gives throws programs a permanent, competition-legal foundation for shot put and hammer events. Designed for in-ground installation, the four-section form bolts together into a perfectly true circle and serves as the mold for a smooth, crack-resistant concrete pour — delivering the consistent, level throwing surface athletes and officials expect at sanctioned meets. Once set, it becomes a fixed part of your facility that will handle years of daily practice and competition without shifting or degrading.

Key features & specs

• Four sections of 2" x 3" aluminum angle that bolt together to form the circle
• Built for permanent in-ground installation
• Aluminum exterior bracing creates a strong, rigid frame that holds shape during the pour
• Open center allows a smooth concrete pour and a crack-resistant finished surface
• Inner circle constructed of 1/4" x 3" flat aluminum bar
• Compatible with Gill toeboards 358 and 363
• Meets NFHS, NCAA, and World Athletics specifications

Coach's tip: Pair the form with a matching Gill toeboard (358 or 363) so your circle is meet-ready from day one. Care: Aluminum construction is corrosion-resistant; keep the circle surface swept clear of debris and standing water to preserve traction and extend service life.