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System Features
and Benefits
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The GRIP-TITE® Wall Anchor
System is used to anchor, secure,
and stabilize both concrete block
and poured concrete walls.
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Engineered to develop holding
strength several times the shear
strength of a concrete block
wall.
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Eliminates the removal and
rebuilding of the existing walls.
Generally can be installed in
less than one day. Does not
destroy shrubs, landscaping,
patios, driveways, or sidewalks.
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All components are
manufactured from high quality
steel and hot dip galvanized for
superior corrosion resistance.
Manufactured under U.S. Patent
#4,189,891.
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TYPICAL ANCHOR
PLACEMENT DETAIL
FILL HEIGHT
"H" (FEET)
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ANCHOR SPACING
"S" (FEET)
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DISTANCE TO ANCHOR
"L" (FEET)
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7'-6"
7'-0"
6'-6"
6'-0"
5'-6"
5'-0"
4'-6"
4'-0"
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5'-0"
5'-3"
5'-3"
6'-0"
6'-0"
6'-0"
6'-0"
6'-0"
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8'-9"
8'-6"
8'-3"
8'-0"
7'-9"
7'-6"
7'-3"
7'-0"
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Notes:
This table assumes a lateral soil
pressure of 50 pounds per square foot of
fill depth. Lateral pressure which acts
against typical basement walls of 10 feet
or less in height is related to the
backfill material type, backfill
compaction, and height of water adjacent
to the wall. Various backfill materials
develop different lateral pressure due to
individual backfill unit weight, internal
friction angle and cohesive
characteristics. The degree of water in
the backfill adjacent to the wall adds to
backfill pressures against the wall.
Abbreviated
Installation Instructions
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Locate
and Dig Earth Anchor
Hole
At each location a
Grip-Tite® Anchor is to be
installed, an earth anchor hole
will be dug. To determine the
location of the earth anchor
hole, calculate the entire anchor
rod length and deduct the width
of the basement wall and
approximately 3" for the rod
length kept within the basement.
Remove and roll up the sod at the
location of the hole and put
aside to be replaced when
finished. The depth of the hole
depends on the location of the
anchor rod to be installed but
should be below the 100 year
average frost line
depth--generally approximately
36" to 42". Whether power or hand
equipment is used to dig the
hole, it is necessary to shave
and square the hole parallel to
the basement wall to allow the
anchor to properly seat.
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Drill and
Install Anchor Rod
From inside the basement drill
a 1 1/8" hole through the wall
(at the predetermined locations)
with a hammer type drill and
carbide bit. Screw a rod point
onto the leading end of the 9'
anchor rod and slide a Wall
Sleeve on the trailing end.
Insert the rod point into the
drilled hole and drive the anchor
rod through to the earth anchor
hole--leaving approximately 3" of
the rod threads exposed inside
the basement. The anchor rod
should be driven through at
approximately a 10 degree
downward inclination to help
prevent ground water from
traveling along the rod into the
basement. If an anchor rod length
of greater than 9' is needed to
reach beyond driveways, porches,
etc., a locking rod coupler can
be installed and rod extensions
used as needed to a maximum
distance of 27 feet.
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Install
Earth Anchor and Wall
Plate
The earth anchor is installed
on the anchor rod outside while
the wall plate, washer and double
nuts are placed on the rod inside
the basement. The rod is then
turned from inside the basement
to tighten the earth anchor until
the anchor is firmly set against
solid earth. One nut is then
removed from the inside wall
plate and the remaining nut is
tightened to the proper torque.
As the earth against the basement
wall dries, the lateral force
against the wall decreases. As
this occurs, the nut should be
periodically tightened to
maintain the stability and
integrity of the wall.
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