Isolated Masonry Piers 1. You may use hollow core concrete masonry units (concrete blocks) to build isolated masonry piers if the units are at least (â¥) 8 inches thick and not longer than (â¤) 3 times the unit thickness.
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Biggest: The largest ambulance in the world is operated by the Dubai Government's Centre of Ambulance Services, which measures 65.71 feet and was designed by Dr. Martin von Bergh of Global Medical Consulting, with a total treatment and transport capacity of 123 patients and staff.