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What do curling stones weigh?

Author

William Rodriguez

Published Jan 13, 2026

The curling stone, or rock, is made of dense polished granite from Ailsa Craig, Scotland, and in the Olympics, each rock weighs 19.1 kg (44 lbs).

How much does a standard curling stone weigh?

The official USA Curling rulebook states that each curling stone cannot be greater than 44 pounds (19.96kg) in weight, and no less than 38 pounds (17.24kg). The handle is included as part of the weight. The stone's circumference cannot exceed 36 inches (91.4cm) and cannot exceed 4.5 inches (11.43cm) in height.

Are all stones in curling the same weight?

Not all curling stones are made the exact same weight. While the most common weight of a curling stone is 42 pounds, curling stones generally weigh between 38lbs -44lbs. That may sound very heavy, and it is! But curlers don't need to lift that weight, they simply need to slide them down a sheet of ice.

What does a curling stone cost?

An average set of 16 curling stones will cost roughly $8,000 to $12,000. This means that each curling stone costs about $500 to $750. However, the prices are significantly lower for the 21 pound stones that children throw. These stones cost about $4,500 per set: about $280 to $300 per stone.

How much does a curling puck weight?

There is no definite weight of a curling stone, but they must weigh between 17.24kg and 19.96kg (38lbs-44lbs) - this includes the handle and bolt on top. They also have a maximum circumference of 91.44cm and a minimum height of 11.43cm.

35 related questions found

What is the weight of a 19 kg curling stone?

The short answer to all of these questions is friction. Curling is named after the unique turning that occurs at the end of the stone's path on the ice. The curling stone, or rock, is made of dense polished granite from Ailsa Craig, Scotland, and in the Olympics, each rock weighs 19.1 kg (44 lbs).

How much do the Olympic curling stones weigh?

Although players used to be able to choose the size curling stone that they used, they now have it standardized to a weight of 20kg (44.1 pounds) with a width of 278 millimeters (10.9 inches) and a height of 136 millimeters (5.3 inches).

Why do curling stones have lights?

The lights are a tracking system to ensure the athletes release the stone before the first hog line - the red line at both ends where both teams must release the stone before passing it. During Team USA's second game against Italy, Stefania Constantini was penalised with a hogline violation in the sixth end.

Are all curling stones from Ailsa Craig?

For the 2022 Beijing Olympics, all 132 curling stones have been extracted from the quarry on Aisla Craig. The granite available from the isle: Ailsa Craig common green granite, Ailsa Craig blue hone granite, and Ailsa Craig red hone granite, are prized for their tiny molecular structure.

How much does a professional curler make?

While ZipRecruiter is seeing annual salaries as high as $122,000 and as low as $17,500, the majority of Curling salaries currently range between $29,500 (25th percentile) to $61,000 (75th percentile) with top earners (90th percentile) making $96,500 annually across the United States.

Do curling stones ever break?

Unfortunately, there is a perception that because these are rocks, they simply won't break down. But stones do wear out. Year after year of sliding up and down the ice and banging into each other with great force can take a toll.

Do curlers use their own stones?

To play curling, a set of stones are needed. They are made of a special type of granite and weigh almost 20 kilos each. Each curler has their own brush and a pair of special curling shoes with one sole that grips the ice and one slippery sole – called a Slider – to be able to slide with a stone during delivery.

What happens if you kick a stone in curling?

What happens if you kick a curling stone? The result of kicking a stone that was just thrown can vary. If the contact occurred before the stone passed the hog line, then that stone is automatically removed from play.

Are curling stones hollow?

Then there is the curling stone. It's a polished marble stone with a curved hollow base; this is, the contact surface is a ring, as can be seen in Figure 2.

How difficult is curling?

Curling may seem relatively easy compared to other Olympic sports such as, say, ski jumping. But launching a 40-pound rock down a sheet of ice toward a specific target requires a high-degree of balance, precision and athleticism.

Is curling an expensive sport?

Curling is inexpensive

Compared to many other sports like golf or skiing, curling is relatively inexpensive to do. You don't need lots of expensive equipment and a curling club membership typically costs between $100 to $300 a year.

Why is Ailsa Craig called Paddy's milestone?

It is located about 16 kilometers (10 miles) off the coast of southwestern Scotland, near the mouth of the Firth of Clyde. It is sometimes referred to as “Paddy's Milestone” due to its location halfway between Glasgow and Belfast. The name Ailsa Craig roughly translates as “fairy rock” in Gaelic.

Is Ailsa Craig inhabited?

The island has been uninhabited since automation in 1990. The island currently belongs to David Thomas Kennedy, the 9th Marquess of Ailsa. He owns the entire island, apart from two hectares which were sold to the Northern Lighthouse Board in 1883.

Do Olympians bring their own curling stones?

When players tilt the stone up before throwing, they are activating the sensor. Teams did not bring their own stones to the Beijing Games; officials provided two sets of eight for each sheet. Each handcrafted stone has its own characteristics — slightly faster or slower, straighter or curvier.

How thick is the ice in curling?

Once the upper layers freeze, white paint, logos and other markings are added. In all, the ice is 10 centimeters thick, or nearly four inches.

Why is it called the hog line in curling?

The “hog line” gets its name from an old Scottish slang term for a weak lamb, which was likely to be culled from the flock. Likewise, a “hogged stone” is one that doesn't reach the far hog line and must be removed from play.

Why do curlers sweep the ice?

In curling, a 42-pound stone is pushed down a sheet of ice, while two players sweep the surface in front of the stone. The goal is to get the stone closest to the target, called a "house." Sweeping warms up the ice and reduces friction, which makes the rock curl less and therefore move straighter.

How heavy is a bobsled?

Around 400 pounds. A two-person sled weighs in at around 375 pounds while the four-person sled averages just over 400 pounds. The monobob, an event that made its Olympic debut in Beijing, is the lightest of the three sleds at a mere 365 pounds.

Why are there green lights on curling rocks?

If you have watched curling before, you may have seen two green lights illuminate near the edge of the stone as it is released. These lights are connected to a sensor that can tell when a curler releases a stone, and is a part of the electronic hog line device.

Are curling stones heated?

Each curling stone is equipped with a heat sensor that can sense if a player releases the stone too late - past the hogline - for a violation.