How to Make a Gauge Rod

Bricklayers use gauge rods to keep both ends of a wall level.

A gauge rod is most commonly used by bricklayers to make sure they maintain the same level on both ends of a wall. It is used to mark out regular, but non-standard, intervals of measurement. In the case of the bricklayer, the height of a modern layer of brick is 75 mm plus 10 mm for the mortar, so each mark on the gauge rod is 85 mm from the next. Gauge rods are often made at home by do-it-yourself enthusiasts. For example, if you're laying 10-inch tile, you can make your own gauge rod with 10-inch intervals to make sure you're properly spaced on each side of the room.

Things You'll Need

• 1/4 by 1 by 36 inch wooden stick
• Measuring tape
• Marker

Instructions

1. Determine the distance needed between each marking on your gauge rod.

2. Use the measuring tape to measure the distance from the bottom of the flat stick to where you want to place the first interval. Use the marker to mark that spot.

3. Measure the same distance from the first mark to the next interval. Mark that spot with the marker. Continue until you have fully marked the stick.

Tips & Warnings

• Though your flat stick is shaped similarly to a yardstick, you should make the length of it a multiple of the intervals you mark on it. If you are making a gauge rod for 10-inch tiles, it is best for your stick to be either 30 or 40 inches long rather than 36.

• Make sure your marks are straight and at a 90-degree angle from the edge of the flat stick. Small variances at each interval can become large errors as the layers stack up. Bricks made in different eras or in different countries can be of different heights. Always measure the height of existing brick and mortar bed if doing repair work to an existing brick structure to get the proper interval measurement.

References

• Kevin Moran Bricklaying: Materials Associated With Brick and Block Work
• Lets Do DIY: Bricklaying Tools
• Brickstick: Home

Resources

• Plastering Workshop: Bricklaying Courses