| 12 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | $.73 | $.68 | $.64 | $.59 | $.59 | |
| 12 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/900 | .62 | .62 | .62 | .62 | .62 | |
| 12 x 4 x 48" | Inside Telescopic HSC | 15/180 | 6.72 | 6.51 | 6.30 | 6.22 | 6.14 | |
| 12 x 5 x 4" | ECT-32 Single Wall Corrugated | 25/1500 | .96 | .82 | .74 | .70 | .66 | |
| 12 x 5 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .98 | .86 | .76 | .70 | .66 | |
| 12 x 6 x 2" | ECT-32 Single Wall Corrugated | 25/1500 | .92 | .80 | .70 | .69 | .67 | |
| 12 x 6 x 3" | ECT-32 Single Wall Corrugated | 25/1250 | .93 | .82 | .73 | .70 | .65 | |
| 12 x 6 x 4" | ECT-32 Single Wall Corrugated | 25/1000 | .63 | .63 | .63 | .63 | .63 | |
| 12 x 6 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .99 | .87 | .77 | .73 | .68 | |
| 12 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/1000 | .65 | .65 | .65 | .65 | .65 | |
| 12 x 6 x 6" | 4,2" | 25/750 | 1.33 | 1.11 | 1.05 | 1.00 | .98 | |
| 12 x 6 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.41 | 1.24 | 1.11 | 1.06 | 1.00 | |
| 12 x 6 x 8" | ECT-32 Single Wall Corrugated | 25/750 | 1.11 | 1.03 | .89 | .82 | .77 | |
| 12 x 6 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.31 | 1.12 | 1.09 | 1.02 | |
| 12 x 6 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/560 | 7.01 | 6.79 | 6.57 | 6.49 | 6.40 | |
| 12 x 7 x 5" | ECT-32 Single Wall Corrugated | 25/900 | 1.02 | .89 | .80 | .75 | .71 | |
| 12 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/900 | 1.13 | 1.05 | .96 | .85 | .80 | |
| 12 x 8 x 3" | ECT-32 Single Wall Corrugated | 25/1000 | 1.04 | .95 | .84 | .79 | .79 | |
| 12 x 8 x 4" | ECT-32 Single Wall Corrugated | 25/750 | 1.05 | .98 | .85 | .77 | .73 | |
| 12 x 8 x 5" | ECT-32 Single Wall Corrugated | 25/750 | 1.11 | 1.00 | .87 | .79 | .75 | |
| 12 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/750 | 1.17 | 1.08 | .98 | .87 | .83 | |
| 12 x 8 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.42 | 2.35 | 2.27 | 2.24 | 2.21 | |
| 12 x 8 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.20 | 1.11 | 1.00 | .89 | .85 | |
| 12 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | .78 | .78 | .78 | .78 | .78 | |
| 12 x 8 x 8" | White | 25/900 | 1.40 | 1.25 | 1.15 | 1.11 | 1.04 | |
| 12 x 8 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.52 | 1.40 | 1.18 | 1.10 | 1.07 | |
| 12 x 9 x 2" | ECT-32 Single Wall Corrugated | 25/900 | .81 | .81 | .81 | .81 | .81 | |
| 12 x 9 x 3" | ECT-32 Single Wall Corrugated | 25/750 | .91 | .91 | .91 | .91 | .91 | |
| 12 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/500 | .84 | .84 | .84 | .84 | .84 | |
| 12 x 9 x 4" | White | 25/500 | 1.45 | 1.31 | 1.19 | 1.13 | 1.06 | |
| 12 x 9 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.25 | 1.11 | 1.05 | 1.00 | .96 | |
| 12 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .93 | .93 | .93 | .93 | .93 | |
| 12 x 9 x 6" | 4,2" | 25/500 | 1.58 | 1.31 | 1.25 | 1.20 | 1.17 | |
| 12 x 9 x 6" | ECT-48 Double Wall Corrugated | 15/450 | 2.29 | 2.14 | 1.99 | 1.86 | 1.74 | |
| 12 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.26 | 1.08 | 1.03 | 1.00 | |
| 12 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.47 | 1.31 | 1.11 | 1.05 | 1.02 | |
| 12 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | .99 | .99 | .99 | .99 | .99 | |
| 12 x 9 x 9" | ECT-48 Double Wall Corrugated | 15/300 | 3.24 | 3.14 | 3.03 | 2.99 | 2.95 | |
| 12 x 9 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.51 | 1.38 | 1.13 | 1.08 | 1.05 | |
| 12 x 9 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.59 | 1.47 | 1.19 | 1.12 | 1.10 | |
| 12 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.25 | 1.12 | 1.06 | 1.06 | 1.06 | |
| 12 x 10 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.27 | 1.13 | 1.02 | .99 | .96 | |
| 12 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/750 | .93 | .93 | .93 | .93 | .93 | |
| 12 x 10 x 4" | 2" | 25/750 | .95 | .92 | .89 | .88 | .87 | |
| 12 x 10 x 4" | ECT-44 Single Wall Corrugated | 25/750 | 2.19 | 2.12 | 2.06 | 2.03 | 2.00 | |
| 12 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.47 | 1.20 | 1.05 | 1.02 | .98 | |
| 12 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .95 | .95 | .95 | .95 | .95 | |
| 12 x 10 x 6" | 4,2" | 25/500 | 1.41 | 1.36 | 1.32 | 1.30 | 1.28 | |
| 12 x 10 x 6" | White | 25/500 | 1.62 | 1.43 | 1.24 | 1.15 | 1.08 | |
| 12 x 10 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.73 | 1.64 | 1.49 | 1.44 | 1.40 | |
| 12 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.45 | 1.31 | 1.11 | 1.05 | 1.02 | |
| 12 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | .96 | .96 | .96 | .96 | .96 | |
| 12 x 10 x 8" | 6,4" | 25/500 | 1.55 | 1.36 | 1.19 | 1.08 | 1.04 | |
| 12 x 10 x 8" | White | 25/500 | 2.01 | 1.78 | 1.56 | 1.40 | 1.36 | |
| 12 x 10 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 1.78 | 1.68 | 1.53 | 1.49 | 1.47 | |
| 12 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.52 | 1.38 | 1.12 | 1.09 | 1.04 | |
| 12 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.22 | 1.14 | .91 | .86 | .85 | |
| 12 x 10 x 10" | White | 25/500 | 1.68 | 1.63 | 1.58 | 1.56 | 1.53 | |
| 12 x 10 x 10" | ECT-48 Double Wall Corrugated | 15/300 | 4.64 | 4.32 | 3.99 | 3.72 | 3.53 | |
| 12 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.77 | 1.63 | 1.32 | 1.24 | 1.23 | |
| 12 x 10 x 14" | ECT-32 Single Wall Corrugated | 25/500 | 1.72 | 1.61 | 1.61 | 1.61 | 1.61 | |
| 12 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.20 | 1.16 | 1.12 | 1.11 | 1.09 | |
| 12 x 12 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 1.31 | 1.23 | 1.23 | 1.23 | 1.23 | |
| 12 x 12 x 3" | ECT-32 Single Wall Corrugated | 25/500 | .93 | .93 | .93 | .93 | .93 | |
| 12 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/500 | .95 | .95 | .95 | .95 | .95 | |
| 12 x 12 x 4" | 2" | 25/500 | 1.36 | 1.32 | 1.28 | 1.26 | 1.25 | |
| 12 x 12 x 4" | White | 25/500 | 1.68 | 1.51 | 1.35 | 1.35 | 1.35 | |
| 12 x 12 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.37 | 1.25 | 1.10 | 1.05 | 1.02 | |
| 12 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .99 | .99 | .99 | .99 | .99 | |
| 12 x 12 x 6" | 4" | 25/500 | 1.28 | 1.24 | 1.20 | 1.19 | 1.17 | |
| 12 x 12 x 6" | White | 25/500 | 1.75 | 1.59 | 1.33 | 1.25 | 1.18 | |
| 12 x 12 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.80 | 1.68 | 1.57 | 1.48 | 1.46 | |
| 12 x 12 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.25 | 2.18 | 2.11 | 2.08 | 2.05 | |
| 12 x 12 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.52 | 1.45 | 1.19 | 1.13 | 1.11 | |
| 12 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.07 | 1.07 | 1.07 | 1.07 | 1.07 | |
| 12 x 12 x 8" | 6,4" | 25/500 | 1.87 | 1.81 | 1.75 | 1.73 | 1.71 | |
| 12 x 12 x 8" | White | 25/500 | 1.96 | 1.75 | 1.51 | 1.47 | 1.37 | |
| 12 x 12 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 3.03 | 2.94 | 2.84 | 2.81 | 2.77 | |
| 12 x 12 x 8" | ECT-48 Double Wall Corrugated | 15/300 | 2.89 | 2.72 | 2.49 | 2.40 | 2.26 | |
| 12 x 12 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.77 | 1.59 | 1.38 | 1.31 | 1.24 | |
| 12 x 12 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | |
| 12 x 12 x 10" | 8,6,4" | 25/500 | 1.85 | 1.79 | 1.73 | 1.71 | 1.69 | |
| 12 x 12 x 10" | White | 25/500 | 2.09 | 1.95 | 1.62 | 1.52 | 1.52 | |
| 12 x 12 x 10" | ECT-44 Single Wall Corrugated | 25/500 | 3.25 | 3.15 | 3.04 | 3.00 | 2.96 | |
| 12 x 12 x 10" | ECT-48 Double Wall Corrugated | 15/150 | 3.10 | 2.87 | 2.62 | 2.49 | 2.36 | |
| 12 x 12 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.97 | 1.80 | 1.51 | 1.37 | 1.30 | |
| 12 x 12 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.09 | 1.09 | 1.09 | 1.09 | 1.09 | |
| 12 x 12 x 12" | 10,8" | 25/500 | 1.51 | 1.51 | 1.51 | 1.51 | 1.51 | |
| 12 x 12 x 12" | White | 25/500 | 2.12 | 1.99 | 1.66 | 1.56 | 1.52 | |
| 12 x 12 x 12" | ECT-44 Single Wall Corrugated | 25/250 | 2.19 | 2.06 | 1.94 | 1.82 | 1.76 | |
| 12 x 12 x 12" | V3c - 350# Single Wall | 20/200 | 7.97 | 7.01 | 7.01 | 7.01 | 7.01 | |
| 12 x 12 x 12" | ECT-48 Double Wall Corrugated | 15/150 | 2.30 | 2.30 | 2.30 | 2.30 | 2.30 | |
| 12 x 12 x 12" | ECT-71 Double Wall Corrugated | 15/150 | 9.40 | 9.10 | 8.81 | 8.69 | 8.58 | |
| 12 x 12 x 12" | Printed Deluxe Packing Box | 25/500 | 1.94 | 1.88 | 1.82 | 1.80 | 1.77 | |
| 12 x 12 x 12" | ECT-90 Triple Wall Corrugated | 5/30 | 32.75 | 31.72 | 30.70 | 30.29 | 29.88 | |
| 12 x 12 x 13" | ECT-32 Corrugated | 25/300 | 2.12 | 1.91 | 1.74 | 1.71 | 1.56 | |
| 12 x 12 x 14" | ECT-32 Corrugated | 25/250 | 2.21 | 1.97 | 1.81 | 1.75 | 1.59 | |
| 12 x 12 x 15" | ECT-32 Corrugated | 25/250 | 2.24 | 2.01 | 1.83 | 1.76 | 1.62 | |
| 12 x 12 x 16" | ECT-32 Corrugated | 25/250 | 2.31 | 2.10 | 1.92 | 1.83 | 1.68 | |
| 12 x 12 x 16" | ECT-48 Double Wall Corrugated | 15/150 | 3.91 | 3.74 | 3.41 | 3.22 | 3.11 | |
| 12 x 12 x 18" | ECT-32 Single Wall Corrugated | 25/250 | 2.31 | 2.11 | 1.97 | 1.85 | 1.70 | |
| 12 x 12 x 18" | 16,14,12,10" | 25/500 | 2.35 | 2.15 | 1.99 | 1.86 | 1.72 | |
| 12 x 12 x 18" | ECT-48 Double Wall Corrugated | 15/150 | 4.18 | 3.92 | 3.74 | 3.74 | 3.74 | |
| 12 x 12 x 20" | ECT-32 Single Wall Corrugated | 25/250 | 2.32 | 2.17 | 2.04 | 1.90 | 1.75 | |
| 12 x 12 x 24" | 2 Cubic Feet | 25/250 | 2.82 | 2.60 | 2.44 | 2.25 | 2.06 | |
| 12 x 12 x 30" | ECT-32 Single Wall Corrugated | 15/240 | 3.36 | 3.10 | 2.91 | 2.76 | 2.48 | |
| 12 x 12 x 36" | 3 Cubic Feet | 15/240 | 3.90 | 3.58 | 3.35 | 3.19 | 2.89 | |
| 12 x 12 x 40" | ECT-32 Single Wall Corrugated | 15/120 | 4.61 | 4.27 | 3.98 | 3.78 | 3.42 | |
| 12 x 12 x 46" | Inner Lamp Box HSC | 15/120 | 4.40 | 4.26 | 4.13 | 4.07 | 4.02 | |
| 12 x 12 x 48" | ECT-32 Single Wall Corrugated | 15/120 | 4.21 | 4.21 | 4.21 | 4.21 | 4.21 | |
| 12 x 12 x 48" | ECT-48 Double Wall Corrugated | 10/90 | 9.79 | 9.05 | 8.39 | 7.95 | 7.58 | |
| 12 x 12 x 48" | Inside Telescopic HSC | 15/120 | 7.44 | 7.21 | 6.98 | 6.89 | 6.79 | |
| 12 x 12 x 52" | ECT-32 Single Wall Corrugated | 15/240 | 5.55 | 5.20 | 5.20 | 5.20 | 5.20 | |
| 12 x 12 x 60" | ECT-32 Single Wall Corrugated | 10/120 | 7.57 | 6.95 | 6.56 | 6.23 | 5.79 | |
| 12 x 12 x 72" | ECT-32 Single Wall Corrugated | 10/120 | 8.38 | 7.78 | 7.37 | 7.17 | 6.84 | |
| 12 x 12 x 72" | Inside Telescopic HSC | 15/90 | 15.75 | 15.26 | 14.77 | 14.57 | 14.38 | |
| 12 1/8 x 12 1/8 x 13 9/16" | ECT-51 Double Wall Corrugated | 10/160 | 9.69 | 9.39 | 9.09 | 8.96 | 8.84 | |
| 12 1/4 x 9 1/4 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.36 | 1.24 | 1.05 | 1.00 | .99 | |
| 12 1/4 x 9 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.43 | 1.39 | 1.34 | 1.32 | 1.30 | |
| 12 1/4 x 9 1/4 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.73 | 1.54 | 1.32 | 1.20 | 1.18 | |
| 12 1/4 x 9 1/4 x 12" | 10,8,6" | 25/500 | 1.92 | 1.75 | 1.55 | 1.46 | 1.43 | |
| 12 1/4 x 12 1/4 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/480 | 10.29 | 9.97 | 9.65 | 9.52 | 9.39 | |
| 12 5/16 x 12 5/16 x 40" | Printed Outer Lamp Box HSC | 15/120 | 4.05 | 3.92 | 3.79 | 3.74 | 3.69 | |
| 12 1/2 x 3 x 17 1/2" | FOL Self Seal White | 25/875 | 6.17 | 5.98 | 5.78 | 5.71 | 5.63 | |
| 12 1/2 x 4 1/2 x 48" | Outer Telescopic HSC | 15/180 | 7.32 | 7.10 | 6.87 | 6.77 | 6.68 | |
| 12 1/2 x 12 1/2 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.37 | 1.33 | 1.29 | 1.27 | 1.25 | |
| 12 1/2 x 12 1/2 x 6" | 4,2" | 25/500 | 1.94 | 1.80 | 1.59 | 1.49 | 1.47 | |
| 12 1/2 x 12 1/2 x 12" | ECT-32 Single Wall Corrugated | 25/250 | 1.80 | 1.75 | 1.69 | 1.67 | 1.64 | |
| 12 1/2 x 12 1/2 x 12" | 10,8,6" | 25/250 | 2.24 | 2.00 | 1.81 | 1.76 | 1.61 | |
| 12 1/2 x 12 1/2 x 15" | ECT-48 Double Wall Corrugated | 15/150 | 3.81 | 3.50 | 3.27 | 3.09 | 2.88 | |
| 12 1/2 x 12 1/2 x 15 1/8" | ECT-48 Double Wall Corrugated | 10/160 | 10.02 | 9.70 | 9.39 | 9.26 | 9.14 | |
| 12 1/2 x 12 1/2 x 48" | Outside Telescopic HSC | 15/120 | 7.81 | 7.56 | 7.32 | 7.22 | 7.12 | |
| 12 1/2 x 12 1/2 x 72" | Outside Telescopic HSC | 15/90 | 16.23 | 15.72 | 15.22 | 15.01 | 14.81 | |
| 12 3/4 x 6 3/8 x 13 1/2" | Holds 4 - 6 x 6 x 6" Boxes | 25/500 | 1.26 | 1.22 | 1.18 | 1.16 | 1.15 | |
| 12 3/4 x 12 3/4 x 13 1/2" | Holds 8 - 6 x 6 x 6" Boxes | 25/250 | 2.24 | 2.04 | 1.84 | 1.82 | 1.67 | |
| 13 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | .80 | .70 | .66 | .64 | .61 | |
| 13 x 3 x 30" | FOL | 25/375 | 3.28 | 2.93 | 2.82 | 2.77 | 2.77 | |
| 13 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.13 | 1.05 | .98 | .87 | .82 | |
| 13 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.21 | 1.08 | 1.05 | 1.05 | 1.05 | |
| 13 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.11 | 1.08 | 1.04 | 1.03 | 1.02 | |
| 13 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/900 | 1.40 | 1.24 | 1.07 | 1.06 | 1.06 | |
| 13 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.59 | 1.47 | 1.25 | 1.18 | 1.12 | |
| 13 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.60 | 1.49 | 1.26 | 1.20 | 1.13 | |
| 13 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.63 | 1.49 | 1.29 | 1.22 | 1.18 | |
| 13 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.68 | 1.51 | 1.32 | 1.25 | 1.18 | |
| 13 x 9 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.71 | 1.52 | 1.34 | 1.25 | 1.20 | |
| 13 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 1.25 | 1.17 | 1.17 | 1.17 | 1.17 | |
| 13 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/500 | .95 | .95 | .95 | .95 | .95 | |
| 13 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.43 | 1.26 | 1.11 | 1.05 | 1.02 | |
| 13 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.47 | 1.32 | 1.15 | 1.11 | 1.09 | |
| 13 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.49 | 1.34 | 1.19 | 1.13 | 1.11 | |
| 13 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.59 | 1.47 | 1.25 | 1.18 | 1.13 | |
| 13 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.30 | 1.26 | 1.22 | 1.20 | 1.19 | |
| 13 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.77 | 1.60 | 1.45 | 1.33 | 1.26 | |
| 13 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.90 | 1.70 | 1.55 | 1.55 | 1.55 | |
| 13 x 10 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 1.97 | 1.75 | 1.62 | 1.51 | 1.44 | |
| 13 x 10 x 15" | ECT-32 Single Wall Corrugated | 25/500 | 2.13 | 1.92 | 1.77 | 1.77 | 1.77 | |
| 13 x 11 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.43 | 1.27 | 1.13 | 1.13 | 1.13 | |
| 13 x 11 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.47 | 1.32 | 1.12 | 1.09 | 1.02 | |
| 13 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.21 | 1.18 | 1.14 | 1.12 | 1.11 | |
| 13 x 11 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.52 | 1.43 | 1.15 | 1.10 | 1.05 | |
| 13 x 11 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.36 | 1.32 | 1.28 | 1.26 | 1.24 | |
| 13 x 11 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.72 | 1.59 | 1.32 | 1.24 | 1.18 | |
| 13 x 11 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.60 | 1.55 | 1.50 | 1.48 | 1.46 | |
| 13 x 13 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 1.50 | 1.41 | 1.41 | 1.41 | 1.41 | |
| 13 x 13 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.53 | 1.40 | 1.27 | 1.27 | 1.27 | |
| 13 x 13 x 4" | ECT-32 Single Wall Corrugated | 25/250 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | |
| 13 x 13 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.60 | 1.47 | 1.25 | 1.18 | 1.11 | |
| 13 x 13 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.72 | 1.53 | 1.37 | 1.32 | 1.19 | |
| 13 x 13 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.81 | 1.63 | 1.49 | 1.45 | 1.31 | |
| 13 x 13 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.86 | 1.71 | 1.53 | 1.49 | 1.43 | |
| 13 x 13 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.93 | 1.75 | 1.60 | 1.54 | 1.46 | |
| 13 x 13 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 2.01 | 1.81 | 1.68 | 1.60 | 1.49 | |
| 13 x 13 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 2.07 | 1.85 | 1.72 | 1.66 | 1.61 | |
| 13 x 13 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | |
| 13 x 13 x 13" | 11,9,7" | 25/500 | 2.49 | 2.10 | 1.91 | 1.84 | 1.80 | |
| 13 x 13 x 13" | ECT-44 Single Wall Corrugated | 25/500 | 4.57 | 4.43 | 4.29 | 4.23 | 4.17 | |
| 13 x 13 x 13" | ECT-48 Double Wall Corrugated | 15/180 | 3.76 | 3.49 | 3.26 | 3.08 | 2.87 | |
| 13 x 13 x 15" | ECT-32 Single Wall Corrugated | 25/250 | 2.59 | 2.31 | 2.10 | 1.93 | 1.84 | |
| 13 x 13 x 17" | ECT-32 Single Wall Corrugated | 25/250 | 2.76 | 2.48 | 2.21 | 2.07 | 2.07 | |
| 13 1/4 x 10 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.72 | 1.54 | 1.38 | 1.31 | 1.25 | |
| 13 1/4 x 10 1/4 x 12" | 10,8,6" | 25/300 | 2.09 | 1.86 | 1.72 | 1.67 | 1.53 | |
| 13 1/2 x 13 1/2 x 7 1/2" | ECT-32 Single Wall Corrugated | 25/500 | 1.91 | 1.70 | 1.51 | 1.45 | 1.32 | |
| 13 3/4 x 9 x 10 3/8" | ECT-51 Double Wall Corrugated | 20/160 | 15.12 | 14.65 | 14.18 | 13.99 | 13.80 | |
| 13 3/4 x 10 1/4 x 9 1/8" | ECT-32 Single Wall Corrugated | 25/500 | 1.38 | 1.34 | 1.29 | 1.28 | 1.26 | |