Reading A Grade Rod Construction

This rod features easy to read measurements including inches feet and metric graduations for your convenience.

Reading a grade rod construction.

A builder s rod for example is marked the same way as a tape measure with tick marks for feet inches and inch fractions. The laserline gr1450 15 direct reading laser grade rod cut fill is a direct reading rod with cut and fill applications. Grade rods are tools used to measure a change in elevation. It also works as a tool where rotary lasers and detectors are used in measuring elevations.

For longer distances special stadia rods are better suited. A normal levelling rod can be used for stadia measures at shorter distances up to about 125 m. Commonly constructed from wood plastic or aluminum grade rods are available in a variety of sizes and units of measurements. Aluminum grade rod for excavating jobs including basements and more.

An alternative topographer s rod has the graduations numbered upwards from the base. Instead of moving the rod from the turning point the instrument is moved to a new location. Learn how to read a leveling rod marked in decimal feet. The site is balanced by moving dirt from high areas and placing it in low areas according to the engineer s construction plans.

Use this johnson s 16 ft. The instrument is then leveled and adjustments are made to correctly make new measurements. Caring for a grade rod. When placed at any point where the level is to be read the value seen is the height above or below the viewer s position.