Accurately positioning the foundation plate beneath the
gate hinge is critical especially if it supports the drive
unit, which supports the gate leaf.
Note
: The foundation plate may be supplied by
the installer. If so, it must meet the
specifications shown in Figure 4.
Note
: Insure that the cavity where the drive
unit is located is well drained by means of
pipes, gravel drainage, or both, whatever is
appropriate for your soil conditions.
Centerline of
gate leaf
Cement
footing
Foundation plate,
10 x 18 in.
(25.4 x 45.7 cm)
Axis of rotation
of gate leaf
Gate
post
Minimum of
2
1
/
4
in. (5.7 cm),
maximum of
5
1
/
4
in. (13.3 cm)
One of 4 bolts that
anchor plate into
cement footing
Figure 4. Recommended dimensions for the concrete footing and
foundation plate, top view
Depth should be a
minimum of 24 in.
(61 cm)
Incorporate proper drainage
Concrete
slab
Minimum depth
of concrete:
18 in. (45.7 cm)
5 1/4 in
(13.2 cm)
6 1/2 in.
(16.5 cm)
Foundation
plate
Finished grade
beneath gate
leaf
Gate
post
Gate leaf
Minimum of 2 3/8 in.
(6 cm) and maximum of
5 1/4 in. (13.3 cm)
One of 4 welded anchors
that extend at least 5 in.
(12.7 cm) into the
cement foundation
Steel foundation plate:
10 x 18 x 3/16 in.
(25.4 x 45.7 x 0.48 cm)