Change in Level - Door Thresholds Tool
This handy tool was developed by Evan Terry Associates to assist its surveyors in measuring door thresholds and level changes. It's small enough to fit in your pocket and sturdy enough to endure many uses.
We have two options for you, the first in a durable plastic-poly stock that will hold up to the wear and tear of surveying.
The second option is to print your own for FREE. We recommend using heavy cardstock and/or laminating for durability. Be sure to select to print the PDF to "actual size" so that the correct proportions are maintained and your tool is accurate. Download below.