With the grading completed (for now), Mark Stanfield and Al Frazer could begin measuring everything and marking on the ground where the footing for the new garage will go.
It is extremely important to get all of the measurements correct before starting to dig the footing, as everything else is built upon it. Carpenters have an old saying about measuring twice and cutting once. Mark and Al measured each side of the foundation more than twice. They also measured the diagonals and did the math to make sure the corners were perfect 90o angles. They built a number of small structures with stakes. These are called batter boards, and strings are run between them to use as a guide lines for marking on the ground and various other purposes. The batter boards stay in place until they are no longer needed so that measurements can always be made from exactly the same place, day after day.
The marking is done with gypsum which is a white chalk-like powder. The white lines show the outline of the footing but obviously not the depth, so they have to measure the depth as they dig.
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