Reading A Grade Rod Construction

A direct reading from the grade rod is used to determine the elevation of the turning point.

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. It also works as a tool where rotary lasers and detectors are used in measuring elevations. 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. Caring for a grade rod.

This rod features easy to read measurements including inches feet and metric graduations for your convenience. Use this johnson s 16 ft. An alternative topographer s rod has the graduations numbered upwards from the base. A normal levelling rod can be used for stadia measures at shorter distances up to about 125 m.

For longer distances special stadia rods are better suited. Instead of moving the rod from the turning point the instrument is moved to a new location. The laserline gr1450 15 direct reading laser grade rod cut fill is a direct reading rod with cut and fill applications. The instrument is then leveled and adjustments are made to correctly make new measurements.

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. The cut and fill feature is typically used on new job sites that are being prepared for grading. Stadia rods or staffs.