Indoor Shot Put Guide: Hardshell vs. Tungsten

Indoor season means a different shot. Iron and steel implements damage gym floors and are banned at indoor facilities, so every indoor putter needs an indoor-specific shot. This guide explains the two types, hardshell and tungsten, and which one to buy for your athlete.

Recommendations from Coach Scott Cappos, Big Ten Coach for 25 years at Iowa and Nebraska.

Quick Answer

Indoor shot put competition weights match outdoor competition weights: 4 kg for high school girls and college women, 12 lb for high school boys, and 16 lb for college men.

The hardshell indoor shot put is the standard choice and the best buy for most athletes.

Why Indoor Shots Exist

An iron shot dropped on a gym floor leaves a crater. Indoor facilities require a shot with a synthetic outer surface that absorbs the landing, and meet officials will check. The throwing weight does not change between seasons; only the construction does. That construction difference is where the buying decision lives.

The Two Types

Indoor Hardshell Shot Put Most Popular

A thick, impact-resistant plastic shell filled with lead. Slightly larger in diameter than an outdoor shot at the same weight, because lead is less dense than a solid iron ball. NFHS and NCAA legal, available in 4k, 12 lb, and 16 lb, with free custom color options.

Best for: Most indoor throwers

Indoor Tungsten Shot Put

Dense tungsten fill lets the ball match your outdoor competition diameter. Your athlete's hand position, neck placement, and release feel stay identical.

Which One Should You Buy?

The hardshell indoor shot put is the standard choice and the best buy for nearly every athlete. It is durable, competition-ready, and used by the vast majority of high school and college throwers.

Tungsten indoor shot puts match the diameter of your outdoor shot for a more consistent feel, but they are significantly more expensive and are typically reserved for elite competitors.

Coaching Insight from Throws Pro

Order indoor shots before the season starts. Every year programs wait until the first indoor meet is on the calendar, and every year custom-color hardshells run into lead times once the rush hits.

Keep Reading

For outdoor shots and the full material breakdown, see the Shot Put Buying Guide. Throwing the weight indoors too? Start with the Indoor Weight Throw Buying Guide.

Not sure which indoor shot fits your athlete?