12-Pound Shot Puts | Indoor Competition | High School Boys

12-pound shot put is thrown in high school indoor track and field, boys throw a, the same weight used during the outdoor season. While the weight is identical, the construction of indoor shots is very different. These implements are engineered to protect gym floors, turf, and rubberized surfaces while still giving athletes the performance they need.

Construction and Materials

Indoor shot puts are built with either a hardshell or softshell outer material, filled with dense materials such as lead, sand, or other synthetic materials. This design prevents the damage a solid iron or steel shot would cause indoors.

• Hardshell: Durable plastic casing (lead-filled or tungsten-filled)

• Softshell: Pliable rubber or composite covering.

Hardshell Indoor Shots

Hardshell shots are rigid, durable, and maintain a perfectly round shape, closely mimicking the feel of outdoor implements. They are slightly larger in diameter (typically 125 mm vs. 117 mm outdoors).

Because of consistency and toughness, hardshell shots are widely used in official competitions as well as training. They resist cracking, chipping, and deforming even after heavy use.

Softshell Indoor Shots

Softshell shots are more flexible and cushion impact on surfaces, which helps protect gyms and multipurpose facilities. However, the pliable design comes with drawbacks:

• They can lose shape quickly

• The plug may separate from the shell

• They are more likely to break compared to hardshells

• In some states, softshell shots are not legal for competition use

• Softshell shots do not have a warranty

Choosing the Right Implement

• Hardshell shots are the top choice for serious competitors who want durability and a true outdoor feel.

• Softshell shots may be suitable for schools with stricter facility rules, though many teams keep both styles to cover different training environments.

Lead Filled vs. Tungsten

Most 12-pound indoor shots are lead-filled and measure around 125 mm, slightly larger than the maximum outdoor diameter. For athletes who prefer a smaller diameter, tungsten-filled indoor shots are available. These are denser and more compact, but they come at a significantly higher cost.

Final Thoughts

Indoor shot puts are an essential for high school throwers to continue developing through the winter season. Whether you choose the consistency of a hardshell or the facility-friendly design of a softshell, the right indoor implement will keep training productive and competition-ready.

✅ Summary: For most high school boys, a lead-filled hardshell indoor shot is the best balance of durability, competition legality, and outdoor-like performance. Tungsten versions are an advanced option for athletes seeking a smaller diameter at a premium price.