Fiberglass Horizontal Tanks

Like a Palmer vertical fiberglass tank, the horizontal tank is constructed in the same manner. The ends are domed or dished to provide a better distribution of weight and added strength. The horizontal tank can be mounted on carbon steel, concrete or polyurethane foam filled fiberglass cradles. Unless otherwise specified or unless site locations require otherwise, Polyurethane foam filled cradles are considered standard on fiberglass tanks. They are glassed to the tank.

We recommend two (2) cradles for lengths up to 20 feet, three (3) cradles for 25 to 35 feet and four (4) cradles for over 35'. The number of cradles is also dependent on the weight of the liquid being stored and whether the specific gravity is high or low.
Underground fiberglass tanks have exterior ribs affixed for added strength and rigidity. Ribs can also be added to above ground tanks if the liquid weight or seismic zones require them. This does not pose a problem for the mounting of cradles, as the cradles will rest between the ribs. For a detailed look at rib for a fiberglass tank, click here. Underground horizontal tanks have dished ends and will also have exterior ribs for support and ridigity. Most capacities are figured for a straight shell; dished heads are usually not figured into the capacity of the tank. If the size of tank you need is not listed, please consult the factory for more details.

Capacity Chart

  DIAMETER
  8 Feet 10 Feet 12 Feet
SIDEWALL CAP WT CAP WT CAP WT
5 Feet 2630 1138 4038 1657 5790 2040
6 Feet 3006 1163 4625 1688 6636 2078
7 Feet 3382 1188 5213 1720 7482 2116
8 Feet 3758 1213 5800 1751 8328 2154
9 Feet 4134 1238 6388 1783 9174 2191
10 Feet 4510 1263 6975 1814 10020 2229
11 Feet 4886 1288 7563 1846 10866 2267
12 Feet 5262 1314 8150 1877 11712 2304
13 Feet 5638 1339 8738 1908 12558 2342
14 Feet 6014 1364 9325 1940 13404 2380
15 Feet 6390 1389 9913 1971 14250 2417
16 Feet 6766 1414 10500 2003 15096 2455
17 Feet 7142 1439 11088 2034 15943 2493
18 Feet 7518 1464 11675 2065 16789 2531
19 Feet 7894 1490 12263 2097 17635 2568
20 Feet 8270 1515 12850 2128 18481 2606
22 Feet N/A N/A N/A N/A 20173 2681
24 Feet N/A N/A N/A N/A 21865 2757