Title: Establish elevation reference points from a benchmark to the wall corner including footing height.
Course: Building Trades II (17009-II) > Section: MASONRY: Performing Masonry Skills

Establishment should include

- transferring an elevation from a predetermined benchmark to the wall, checking accuracy with leveling devices
- using leveling devices to determine the top of a continuous footing that will provide a level surface throughout. (Grades must meet local building codes.)
- laying out and squaring the foundation, using a transit level or the 3-4-5 method, according to plans.

Process/Skill Questions:

- What is a benchmark?
- Where is the benchmark located?
- What are grade stakes?
- Why is it important to consult building codes before grading?
- What are two methods used to square a foundation?
- What is meant by pinning the corners?