The Aluminium Circle Forms [Models: Shot/Hammer/Discus] are engineered for permanent in-ground installations where precision and long-term durability are essential. Used by schools, clubs, and elite-level venues, this heavy-duty circle form ensures a professional-quality finish that stands up to years of competition and training. Constructed from four sections of 50 mm x 75 mm aluminium angle with integrated bracing, the frame delivers exceptional strength and shape retention. The bolt-together design allows for easy assembly and exact placement during installation. The centre remains open to enable a smooth concrete pour, reducing seam lines and helping prevent cracking over time. An internal ring made from 6 mm x 75 mm flat aluminium bar forms the official competition boundary, and the form is fully compatible with toeboard models 358 and 363 (sold separately). Complies with NFHS, NCAA, and World Athletics regulations, making it suitable for sanctioned events and facility builds. Key Features: ✅ Heavy-Duty Frame: Four sections of 50 mm x 75 mm aluminium angle✅ Bolt-Together Design: Simplifies installation while ensuring precise alignment✅ Integrated Bracing: Reinforced for a strong and stable foundation✅ Crack-Resistant Pour: Open centre allows for a seamless, durable concrete finish✅ Inner Circle Ring: 6 mm x 75 mm flat aluminium bar✅ Toeboard Compatible: Suits models 358 and 363 (sold separately)✅ Regulation Compliant: Meets NFHS, NCAA, and World Athletics standards Delivery Note: Standard lead time is approximately 40 days. For urgent requirements, please contact our team to discuss expedited options. Cazna Sports provides a full range of track and field infrastructure, including throwing circles, cages, and surface-level accessories for professional and school-level facilities.
![Gill Aluminum Circle Forms [Models:: Shot/Hammer/Discus]](https://cdn.shopify.com/s/files/1/0763/8476/4129/files/GillAluminumCircleForms.png?v=1755733066&width=480)
