Polymer Concrete Underground Utility Enclosures Products Products Clear Filters Filter Clear Filter 12 x 12 x 12 Tier 22 Box 12×12×12 ODOT Tier 22 Designed Polymer Underground EnclosureODOT-Certified Tier 22 ANSI/SCTE 77Max Vertical Load - 22,500 lbsMax Lateral Load - 800 lbs / sqft 13 x 24 x 19 Tier 22 Box 13×24×19 ODOT Tier 22 Designed Polymer Underground EnclosureODOT-Certified Tier 22 ANSI/SCTE 77Max Vertical Load - 22,500 lbsMax Lateral Load - 800 lbs / sqft 24 x 36 x 24 Tier 22 Box 24×36×24 ODOT Tier 22 Designed Polymer Underground EnclosureODOT-Certified Tier 22 ANSI/SCTE 77Max Vertical Load - 22,500 lbsMax Lateral Load - 800 lbs / sqft No results found No results match your search. Try removing a few filters.