The Unipier products offer a great deal of flexibility. If you do not find an “off-the-shelf” support for your particular application, contact Unistrut with your requirements. We can design and build the proper support for your unique application.

For a quotation on custom fabrication, contact Unistrut with the parameters for your design as shown below.

1. Dimension of duct
2. Clearance height above roof
3. Total footage of duct
4. Thickness of insulation, if any

Base
Number
HWAMax.
Uniform LoadPer Duct
UP-BK17″
(431.8)
8″ to 12″
(203.2 to 304.8)
6″ to 12″
(152.4 to 304.8)
25 lbs.
UP-BK24″
(609.6)
12″ to 18″
(304.8 to 457.2)
6″ to 18″
(152.4 to 457.2)
50 lbs.

Picture 1

Part NumberMax. Uniform LoadMax. Pipe Capacity
Per Pipe StandPer Base
8-H-DB Base P700 lbs.350 lbs.8″ ID
9″ OD
16-H Base P1,60080016″ ID
18″ OD

Picture 2

BaseMaterialMax. Uniform Load
Per DuctPer Base
6-H Base PPolycarbonate150 lbs.75 lbs.
6-H Base HDGHot-Dipped
Galvanized
300 lbs.150 lbs.
6-H Base SSStainless Steel300 lbs.150 lbs.
8-H-SB Base PPolycarbonate300 lbs.150 lbs.
8-H Base HDGHot-Dipped
Galvanized
300 lbs.150 lbs.
8-H-DB Base SSStainlessSteel300 lbs.150 lbs.
8-H-DB Base PPolycarbonate300 lbs.150 lbs.

Picture 3