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Locating
The Footing Top Grade
On Corner Form Stakes
Drive a building corner
stake flush
into
the ground and use a nail or pencil mark to mark the point under the
plumb bob.
Alternatively, you could drive a nail or spike into the ground instead
of a stake.
Locate building wall positions B and C by dropping a plumb bob or
spirit level from the string lines. Mark the positions with a nail
flush to the ground. Use positions A, B, and C, a framing square or
combination square, and measuring tape, to locate and square the two
outside footing form corner stakes. If a framing square is
placed on the building line with the spirit level or plumb
bob, the positions would not have to be marked with nails.
The
outside footing form
corner stakes will be setback a distance equal to the footing extension
beyond
the building wall plus the thickness of one form board. Use the
builder's, transit or laser level, measuring stick, benchmark and
building plan to determine and mark the location of the top grade of
the footing on all corner form stakes. See figure 9. Do not measure the
top grade of the footing from the excavation surface. The ground will
most likely be uneven.
