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Flagpole Installation Guide
Shoebase Mount Installation
Shoebase mount flagpoles are used primarily where embedded type mounts cannot be used, as over an underground garage; or where electrical wiring for
illumination or hazard lights is to be introduced into the shaft.
Anchor base is cast from A356 alloy aluminum, the shoebase shall be heat-treated to a T-6 condition. The shaft shall be inserted into the shoebase casting, and casting and shaft shall
be joined by a continuous circumferential weld at the outside top and inside bottom of the shoebase. Shoebase mounting is available on most shafts with a base diameter of 4" to
10".
Base mounting is not recommended except for roof tops and parking garages
Ground Mounted Installation (for Independence, Continental, and Sentry flag poles)
(Estate & Fiberglass Flagpoles Use a Mounting Tube)
The embedded, or groundset, mount is the method of choice for mounting aluminum flagpoles at grade. Flagpole shafts so mounted have a higher wind speed rating than the same shafts base plate mounted.
Foundation tube is fabricated from 16 ga. galvanized steel, with a steel base plate whose square dimension is at least the i.d. of the sleeve plus 4". A setting plate 6" square shall be securely welded to the ground spike at least 6" below the base plate. The ground spike shall be 3/4" diameter, not less than 18" long.
Shaft foundation dimensions recommended
minimums for good, firm, dry soil only.
| Height |
Butt
Dia |
Sleeve
Dia |
Depth
A |
Top B |
Bottom
C |
| 20' |
4" |
6" |
3' 6" |
30" |
24" |
| 20' |
5" |
8" |
3' 6" |
30" |
24" |
| 25' |
5" |
8" |
3' 6" |
30" |
24" |
| 25' |
5.5 - 6" |
10" |
3' 6" |
30" |
24" |
| 30' |
5" |
8" |
3' 6" |
30" |
24' |
| 30' |
6" |
10" |
3' 6" |
30" |
24" |
| 35' |
5" |
8" |
4' 0" |
36" |
30" |
| 35' |
6 - 7" |
10" |
4' 0" |
36" |
30" |
| 40' |
7" |
10" |
4' 6" |
42" |
36" |
| 40' |
8" |
12" |
4' 6" |
42" |
36" |
| 45' |
8" |
12" |
5' 0" |
48" |
42" |
| 50' |
8" |
12" |
5' 6" |
48" |
42" |
| 50' |
10" |
15" |
5' 6" |
48" |
42" |
| 60 |
10 - 12" |
15" |
6' 10" |
48" |
42" |
| 70' |
10 - 12" |
15" |
8' 0" |
60" |
48" |
| 80' |
12" |
15" |
9' 0" |
60" |
48" |
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