How to Build a Stimpmeter

Golf is a popular sport that requires precision and accuracy when it comes to putting. The speed of the green can significantly affect a golfer’s performance, and that’s where a stimpmeter comes into play. A stimpmeter is a device used to measure the speed of a green by rolling a ball down a ramp and measuring how far it travels. In this article, we will discuss how to build a stimpmeter.

Materials Required:

  • A wooden board (approximately 1 inch thick, 2 feet long, and 4 inches wide)
  • A metal ruler (at least 3 feet long)
  • A protractor
  • A small metal plate
  • A ball (preferably a golf ball)
  • Tape measure
  • Screws
  • Screwdriver
  • Drill

Steps to Build a Stimpmeter:

Step 1: Cut the Wooden Board Cut the wooden board to a length of 2 feet and a width of 4 inches using a saw. Sand the edges of the board to remove any roughness or splinters.

Step 2: Attach the Metal Ruler Use screws to attach the metal ruler to the top of the wooden board, leaving about 6 inches of the ruler hanging over the edge. The ruler should be centered along the width of the board.

Step 3: Attach the Protractor Using screws, attach the protractor to the bottom of the board, aligning it with the ruler’s centerline. Make sure the protractor is flush against the bottom of the board.

Step 4: Attach the Metal Plate Attach the small metal plate to the top of the board, directly under the ruler’s overhanging end. The plate should be perpendicular to the board’s width and centered along the board’s length.

Step 5: Measure the Distance Using a tape measure, mark the distance of 30 inches from the bottom edge of the wooden board to the top edge of the metal plate.

Step 6: Test the Stimpmeter To test the stimpmeter, place the ball on the metal plate and let it roll down the ramp. Measure how far the ball travels and record the result. Repeat the process several times to get an average.

Calibrating the Stimpmeter:

Step 1: Determine the Slope The first step in calibrating the stimpmeter is to determine the slope of the green where you want to measure the speed. To do this, use a level to find the slope of the green. The slope can be measured in degrees or as a percentage.

Step 2: Calculate the Target Distance Once you know the slope of the green, you can calculate the target distance for the stimpmeter. The target distance is the distance the ball should travel when rolled down the ramp at a specific slope. You can use a formula to calculate the target distance.

Step 3: Adjust the Stimpmeter If the ball travels too far, you need to adjust the stimpmeter by making the ramp steeper. If the ball doesn’t travel far enough, you need to make the ramp less steep. To adjust the stimpmeter, loosen the screws holding the protractor in place and adjust the angle of the ramp.

Step 4: Test the Stimpmeter Once you’ve adjusted the stimpmeter, test it several times to make sure it’s measuring the speed of the green accurately.

Using the Stimpmeter:

Step 1: Choose a Spot on the Green Choose a spot on the green where you want to measure the speed. Make sure the area is flat and doesn’t have any bumps or slopes that could affect the results.

Step 2: Place the Stimpmeter on the Green Place the stimpmeter on the green, with the metal plate facing uphill. Make sure the ramp is aligned with the slope of the green.

Step 3: Roll the Ball Place the ball on the metal plate and let it roll down the ramp. Measure how far the ball travels and record the result. Repeat the process several times to get an average.

Step 4: Interpret the Results The result of the stimpmeter measurement is the distance the ball traveled. The longer the distance, the faster the green. The result can be used to help golfers adjust their putting speed based on the green’s speed.


Materials needed to build a stimpmeter

Aluminum angle bar2Frame$20
Stainless steel ruler1Measuring scale$10
Rubber band2Damping mechanism$2
Ball bearings2Rolling mechanism$5
Epoxy glue1Adhesive$7

Steps to build a stimpmeter

1Cut two 18-inch pieces of aluminum angle bar
2Attach the two pieces to form an L-shaped frame using epoxy glue
3Attach a stainless steel ruler to the frame with screws
4Attach two ball bearings to the ruler, one at the 1-inch mark and one at the 30-inch mark
5Attach two rubber bands to the frame, one at the 15-inch mark and one at the 30-inch mark
6Calibrate the stimpmeter by rolling a golf ball down the ruler and adjusting the angle until it stops at the desired distance
7Record the distance and repeat the calibration process until the readings are consistent
8Test the stimpmeter on a golf course to ensure accuracy

Common mistakes when building a stimpmeter

Uneven surfaceIf the surface on which the stimpmeter is placed is not level, it can affect the readings
Improper calibrationIf the stimpmeter is not calibrated properly, it can give inaccurate readings
Incorrect placement of rubber bandsThe rubber bands need to be placed at the correct distances to ensure accurate readings
Poor quality ball bearingsIf the ball bearings are of poor quality, they can affect the rolling mechanism and give inaccurate readings
Loose ruler attachmentIf the ruler is not attached securely to the frame, it can move during the testing process and give inaccurate readings

How to use a stimpmeter

1Place the stimpmeter on a flat surface
2Place a golf ball at the 30-inch mark
3Tilt the stimpmeter until the ball rolls down the ruler and comes to a stop
4Record the distance the ball traveled
5Repeat the process several times and take an average of the readings
6Use the average reading as the stimp rating for the green

Importance of using a stimpmeter

Consistent course conditionsUsing a stimpmeter ensures that the greens on a golf course have consistent speeds, which is important for maintaining course conditions
Fair playA stimpmeter ensures that all golfers are playing under the same conditions, which is important for fair play
Improved player performanceKnowing the speed of the greens can help golfers make better decisions when putting and improve their overall performance
Course maintenanceUsing a stimpmeter can help course maintenance staff maintain consistent greens speeds and ensure that the course is in good condition
Better understanding of the gameUsing a stimpmeter can help golfers gain a better understanding of the game and the importance of course conditions



A stimpmeter is a useful tool for measuring the speed of a green in golf. By following these steps, you can build your stimpmeter and measure the green’s speed accurately. Remember to test your stimpmeter several times to ensure the results are consistent.

How to Build a Stimpmeter


  • Ray Barnes

    Ray Barnes, our Senior Staff Writer and a Golf Analyst with a PhD in Sports Analytics, is a beacon of insight in the golfing world. With a deep understanding of the sport's nuances, statistical analysis, and a talent for demystifying complexities, he provides in-depth analysis and captivating narratives that engage golf enthusiasts worldwide.

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