The Model 3-R Spacer is 7.5 square and the base is gently rounded to prevent gouging the roof. The outer edges are raised 2" and increased elevations may be achieved by stacking Model 3-R-2 or 3-R-4 on 1 or 2 spacers, each with a height of 2". Four drainage ports are provided to prevent ponding within the device. The dimensional area resting on the roof is 7.5 inches square and 52.56 square inches exist of contact roof support
Base Material: Polycarbonate
Size: The Pillow Block Pipestand Model 3-R-2 is made in one standard size. The deck base is 7.75" square, the top of the roller device is 2.15" high, the top of the cradle is 4" high, and the maximum width of the interior of the cradle is 3.875"
Max Pipe Size: 3" inside diameter and 3.75" outside diameter.
Max Pipe Clearance: Rod and pipes supported one pipestand high will have a clearance of 2.15". Each 3-R spacer increases the clearance of the pipe by 2".
Max Load Weight: Maximum load weight may not exceed 100 lbs. per pipestand.
Spacing: Recommended spacing is not to exceed 10 feet centers depending upon the load. Make certain each pipestand is properly elevated to even load weight at all pipestands.