8" x 8" 275# SW RSC ASTM-5118 Mil-STD-2073 W5C Class WR Fiberboard Shipping Box

8" x 8" 275# SW RSC ASTM-5118 Mil-STD-2073 W5C Class WR Fiberboard Shipping Box 25/bd Fiberboard shipping boxes are measured L x W x H Fiberboard shipping boxes are shipped flat to save on freight and storage Fiberboard shipping boxes are available in Kraft and white ASTM-D5118 W6C's are single wound with a test number of 175 Custom sizes are available for fiberboard shipping boxes