Description
Overview
The Bison HD25 is a 1/4 in. fixed-height deck support for low-clearance installations. It can be combined with Bison’s other fixed-height supports to build the required height without a screw-adjustable pedestal.
Features
- Stackable up to four fixed-height pedestals in the approved configuration.
- Choose 1/8 in. or 3/16 in. tabs for the required joint spacing.
- USA-made high-density copolymer polypropylene contains 20% post-industrial recycled material.
- Material resists water, mold and freeze/thaw exposure.
Specifications
- Model: HD25
- Support height: 1/4 in. (6 mm)
- Base diameter: 5-7/8 in. (approximately 149 mm)
- Product weight: 0.11 lb. (0.05 kg)
- Rated capacity: 1,250 lbf (5.56 kN) per pedestal; factor of safety 3
- Stacking limit: 4 fixed-height pedestals
- Variants: HD25-18: 1/8 in. tabs; HD25-316: 3/16 in. tabs
Size Options
- 1/8" Tab
- 3/16" Tab
Downloads
Applications
Use HD25 where the available cavity calls for a 1/4 in. support or a stack built from the HD25, HD50 and HD75 fixed-height sizes. Joint spacing and support height are separate choices: the selected tab width does not change the HD25 body height.
Selection and Use
- Plan the combined support height before selecting the quantity and mix of fixed-height units; do not exceed four in a stack.
- Confirm that the deck units, supporting surface and perimeter restraint satisfy the project requirements. The pedestal’s rating does not establish the strength of the roof or paving material.
- For small thickness variations, use the manufacturer-approved shim procedure rather than assuming a fixed-height unit has threaded adjustment.
