Proline’s 12″ – 24″ stackable plastic pipe stand is the current “Superman” of the industry. When designing this stand, Proline engineers gave it a “star” shape and that contributes to its strength. Tested on a third party press with a maximum down force of 50,000 lbs., the test machine reached its full capacity without being able to collapse the 12″- 24″ stand. Rather than take the 12″-24″ to another facility with a stronger test machine, we took the results of the test and rated this stand with a safe working load capacity of 10,000 lbs. Safety is our highest priority and Proline’s plastic pipe stands reflect that commitment.