| 12 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | $1.03 | $.97 | $.91 | $.85 | $.76 | |
| 12 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/900 | .73 | .69 | .64 | .60 | .54 | |
| 12 x 4 x 48" | Inside Telescopic HSC | 15/180 | 7.62 | 7.17 | 6.73 | 6.28 | 5.60 | |
| 12 x 5 x 4" | ECT-32 Single Wall Corrugated | 25/1500 | .72 | .68 | .63 | .59 | .53 | |
| 12 x 5 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .73 | .69 | .65 | .60 | .54 | |
| 12 x 6 x 2" | ECT-32 Single Wall Corrugated | 25/1500 | 1.19 | 1.12 | 1.05 | .98 | .87 | |
| 12 x 6 x 3" | ECT-32 Single Wall Corrugated | 25/1250 | .75 | .71 | .66 | .62 | .55 | |
| 12 x 6 x 4" | ECT-32 Single Wall Corrugated | 25/1000 | .75 | .71 | .66 | .62 | .55 | |
| 12 x 6 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .84 | .79 | .74 | .69 | .62 | |
| 12 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/1000 | .72 | .72 | .72 | .72 | .72 | |
| 12 x 6 x 6" | 4,2" | 25/750 | .97 | .92 | .86 | .80 | .72 | |
| 12 x 6 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.24 | 1.17 | 1.09 | 1.02 | .91 | |
| 12 x 6 x 8" | ECT-32 Single Wall Corrugated | 25/750 | 1.10 | 1.03 | .97 | .90 | .81 | |
| 12 x 6 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.20 | 1.13 | 1.06 | .99 | .88 | |
| 12 x 6 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/560 | 8.05 | 7.58 | 7.11 | 6.63 | 5.92 | |
| 12 x 7 x 5" | ECT-32 Single Wall Corrugated | 25/900 | 1.25 | 1.17 | 1.10 | 1.03 | .92 | |
| 12 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/900 | 1.31 | 1.23 | 1.15 | 1.08 | .96 | |
| 12 x 8 x 3" | ECT-32 Single Wall Corrugated | 25/1000 | 1.29 | 1.22 | 1.14 | 1.06 | .95 | |
| 12 x 8 x 4" | ECT-32 Single Wall Corrugated | 25/750 | .98 | .92 | .86 | .81 | .72 | |
| 12 x 8 x 5" | ECT-32 Single Wall Corrugated | 25/750 | 1.09 | 1.02 | .96 | .90 | .80 | |
| 12 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/750 | .98 | .92 | .86 | .80 | .72 | |
| 12 x 8 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.74 | 2.58 | 2.42 | 2.26 | 2.01 | |
| 12 x 8 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.06 | 1.00 | .93 | .87 | .78 | |
| 12 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.03 | .97 | .91 | .85 | .76 | |
| 12 x 8 x 8" | White | 25/900 | 1.63 | 1.54 | 1.44 | 1.34 | 1.20 | |
| 12 x 8 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.88 | 1.77 | 1.66 | 1.55 | 1.38 | |
| 12 x 9 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.26 | 1.19 | 1.12 | 1.04 | .93 | |
| 12 x 9 x 3" | ECT-32 Single Wall Corrugated | 25/750 | .97 | .91 | .86 | .80 | .71 | |
| 12 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/500 | 1.05 | .99 | .93 | .86 | .77 | |
| 12 x 9 x 4" | White | 25/500 | 1.23 | 1.16 | 1.08 | 1.01 | .90 | |
| 12 x 9 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.01 | .95 | .89 | .83 | .74 | |
| 12 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | |
| 12 x 9 x 6" | 4,2" | 25/500 | 1.31 | 1.23 | 1.15 | 1.07 | .96 | |
| 12 x 9 x 6" | ECT-48 Double Wall Corrugated | 15/450 | 3.02 | 2.84 | 2.66 | 2.48 | 2.22 | |
| 12 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.19 | 1.12 | 1.05 | .98 | .88 | |
| 12 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.26 | 1.19 | 1.12 | 1.04 | .93 | |
| 12 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.26 | 1.19 | 1.11 | 1.04 | .93 | |
| 12 x 9 x 9" | ECT-48 Double Wall Corrugated | 15/300 | 3.65 | 3.43 | 3.22 | 3.00 | 2.68 | |
| 12 x 9 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.39 | 1.31 | 1.23 | 1.15 | 1.02 | |
| 12 x 9 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.49 | 1.41 | 1.32 | 1.23 | 1.10 | |
| 12 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.88 | 1.77 | 1.66 | 1.55 | 1.38 | |
| 12 x 10 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.09 | 1.03 | .96 | .90 | .80 | |
| 12 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/750 | 1.07 | 1.01 | .94 | .88 | .79 | |
| 12 x 10 x 4" | 2" | 25/750 | 1.07 | 1.01 | .95 | .88 | .79 | |
| 12 x 10 x 4" | ECT-44 Single Wall Corrugated | 25/750 | 2.50 | 2.36 | 2.21 | 2.06 | 1.84 | |
| 12 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.17 | 1.10 | 1.03 | .96 | .86 | |
| 12 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.18 | 1.11 | 1.04 | .97 | .87 | |
| 12 x 10 x 6" | 4,2" | 25/500 | 1.60 | 1.51 | 1.42 | 1.32 | 1.18 | |
| 12 x 10 x 6" | White | 25/500 | 1.44 | 1.36 | 1.27 | 1.19 | 1.06 | |
| 12 x 10 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.70 | 1.60 | 1.50 | 1.40 | 1.25 | |
| 12 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.31 | 1.23 | 1.15 | 1.08 | .96 | |
| 12 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.29 | 1.22 | 1.14 | 1.07 | .95 | |
| 12 x 10 x 8" | 6,4" | 25/500 | 1.42 | 1.33 | 1.25 | 1.17 | 1.04 | |
| 12 x 10 x 8" | White | 25/500 | 1.66 | 1.57 | 1.47 | 1.37 | 1.22 | |
| 12 x 10 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 2.04 | 1.92 | 1.80 | 1.68 | 1.50 | |
| 12 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.42 | 1.33 | 1.25 | 1.17 | 1.04 | |
| 12 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.31 | 1.24 | 1.16 | 1.08 | .97 | |
| 12 x 10 x 10" | White | 25/500 | 1.85 | 1.74 | 1.63 | 1.52 | 1.36 | |
| 12 x 10 x 10" | ECT-48 Double Wall Corrugated | 15/300 | 4.14 | 3.89 | 3.65 | 3.41 | 3.04 | |
| 12 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.79 | 1.69 | 1.58 | 1.48 | 1.32 | |
| 12 x 10 x 14" | ECT-32 Single Wall Corrugated | 25/500 | 2.84 | 2.67 | 2.50 | 2.34 | 2.09 | |
| 12 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.35 | 1.27 | 1.19 | 1.11 | .99 | |
| 12 x 12 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 2.17 | 2.04 | 1.92 | 1.79 | 1.60 | |
| 12 x 12 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.25 | 1.17 | 1.10 | 1.03 | .92 | |
| 12 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/500 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | |
| 12 x 12 x 4" | 2" | 25/500 | 1.54 | 1.45 | 1.36 | 1.27 | 1.13 | |
| 12 x 12 x 4" | White | 25/500 | 2.38 | 2.24 | 2.10 | 1.96 | 1.75 | |
| 12 x 12 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.38 | 1.30 | 1.22 | 1.14 | 1.02 | |
| 12 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 12 x 12 x 6" | 4" | 25/500 | 1.45 | 1.36 | 1.28 | 1.19 | 1.06 | |
| 12 x 12 x 6" | White | 25/500 | 1.87 | 1.76 | 1.65 | 1.54 | 1.38 | |
| 12 x 12 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.89 | 1.78 | 1.67 | 1.56 | 1.39 | |
| 12 x 12 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.45 | 2.31 | 2.16 | 2.02 | 1.80 | |
| 12 x 12 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.38 | 1.29 | 1.21 | 1.08 | |
| 12 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.11 | 1.11 | 1.11 | 1.11 | 1.11 | |
| 12 x 12 x 8" | 6,4" | 25/500 | 2.11 | 1.98 | 1.86 | 1.74 | 1.55 | |
| 12 x 12 x 8" | White | 25/500 | 2.32 | 2.19 | 2.05 | 1.91 | 1.71 | |
| 12 x 12 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 3.42 | 3.21 | 3.01 | 2.81 | 2.51 | |
| 12 x 12 x 8" | ECT-48 Double Wall Corrugated | 15/300 | 2.75 | 2.59 | 2.43 | 2.27 | 2.02 | |
| 12 x 12 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.67 | 1.57 | 1.47 | 1.38 | 1.23 | |
| 12 x 12 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.56 | 1.47 | 1.38 | 1.29 | 1.15 | |
| 12 x 12 x 10" | 8,6,4" | 25/500 | 2.22 | 2.09 | 1.96 | 1.83 | 1.63 | |
| 12 x 12 x 10" | White | 25/500 | 2.62 | 2.46 | 2.31 | 2.16 | 1.93 | |
| 12 x 12 x 10" | ECT-44 Single Wall Corrugated | 25/500 | 3.66 | 3.44 | 3.23 | 3.01 | 2.69 | |
| 12 x 12 x 10" | ECT-48 Double Wall Corrugated | 15/150 | 2.96 | 2.78 | 2.61 | 2.43 | 2.17 | |
| 12 x 12 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.84 | 1.73 | 1.62 | 1.51 | 1.35 | |
| 12 x 12 x 12" | ECT-32 Single Wall Corrugated | 25/500 | .98 | .98 | .98 | .98 | .98 | |
| 12 x 12 x 12" | 10,8" | 25/500 | 1.90 | 1.79 | 1.68 | 1.57 | 1.40 | |
| 12 x 12 x 12" | White | 25/500 | 2.10 | 1.98 | 1.85 | 1.73 | 1.55 | |
| 12 x 12 x 12" | ECT-44 Single Wall Corrugated | 25/250 | 2.65 | 2.49 | 2.34 | 2.18 | 1.95 | |
| 12 x 12 x 12" | V3c - 350# Single Wall | 20/200 | 12.39 | 11.66 | 10.93 | 10.20 | 9.11 | |
| 12 x 12 x 12" | ECT-48 Double Wall Corrugated | 15/150 | 2.83 | 2.66 | 2.50 | 2.33 | 2.08 | |
| 12 x 12 x 12" | ECT-71 Double Wall Corrugated | 15/150 | 10.59 | 9.96 | 9.34 | 8.72 | 7.78 | |
| 12 x 12 x 12" | Printed Deluxe Packing Box | 25/500 | 2.74 | 2.58 | 2.42 | 2.26 | 2.01 | |
| 12 x 12 x 12" | ECT-90 Triple Wall Corrugated | 5/30 | 37.93 | 35.70 | 33.47 | 31.24 | 27.89 | |
| 12 x 12 x 13" | ECT-32 Corrugated | 25/300 | 2.08 | 1.95 | 1.83 | 1.71 | 1.53 | |
| 12 x 12 x 14" | ECT-32 Corrugated | 25/250 | 2.08 | 1.96 | 1.83 | 1.71 | 1.53 | |
| 12 x 12 x 15" | ECT-32 Corrugated | 25/250 | 2.18 | 2.05 | 1.92 | 1.80 | 1.60 | |
| 12 x 12 x 16" | ECT-32 Corrugated | 25/250 | 2.22 | 2.09 | 1.96 | 1.83 | 1.63 | |
| 12 x 12 x 16" | ECT-48 Double Wall Corrugated | 15/150 | 4.96 | 4.67 | 4.38 | 4.08 | 3.65 | |
| 12 x 12 x 18" | ECT-32 Single Wall Corrugated | 25/250 | 2.39 | 2.25 | 2.11 | 1.97 | 1.76 | |
| 12 x 12 x 18" | 16,14,12,10" | 25/500 | 2.44 | 2.29 | 2.15 | 2.01 | 1.79 | |
| 12 x 12 x 18" | ECT-48 Double Wall Corrugated | 15/150 | 6.60 | 6.21 | 5.83 | 5.44 | 4.86 | |
| 12 x 12 x 20" | ECT-32 Single Wall Corrugated | 25/250 | 2.54 | 2.39 | 2.24 | 2.09 | 1.86 | |
| 12 x 12 x 24" | 2 Cubic Feet | 25/250 | 2.87 | 2.70 | 2.54 | 2.37 | 2.11 | |
| 12 x 12 x 30" | ECT-32 Single Wall Corrugated | 15/240 | 3.36 | 3.17 | 2.97 | 2.77 | 2.47 | |
| 12 x 12 x 36" | 3 Cubic Feet | 15/240 | 4.14 | 3.89 | 3.65 | 3.41 | 3.04 | |
| 12 x 12 x 40" | ECT-32 Single Wall Corrugated | 15/120 | 4.40 | 4.14 | 3.88 | 3.62 | 3.23 | |
| 12 x 12 x 46" | Inner Lamp Box HSC | 15/120 | 5.14 | 4.83 | 4.53 | 4.23 | 3.78 | |
| 12 x 12 x 48" | ECT-32 Single Wall Corrugated | 15/120 | 7.06 | 6.65 | 6.23 | 5.82 | 5.19 | |
| 12 x 12 x 48" | ECT-48 Double Wall Corrugated | 10/90 | 13.26 | 12.48 | 11.70 | 10.92 | 9.75 | |
| 12 x 12 x 48" | Inside Telescopic HSC | 15/120 | 8.36 | 7.87 | 7.38 | 6.89 | 6.15 | |
| 12 x 12 x 52" | ECT-32 Single Wall Corrugated | 15/240 | 9.18 | 8.64 | 8.10 | 7.56 | 6.75 | |
| 12 x 12 x 60" | ECT-32 Single Wall Corrugated | 10/120 | 9.92 | 9.34 | 8.75 | 8.17 | 7.30 | |
| 12 x 12 x 72" | ECT-32 Single Wall Corrugated | 10/120 | 11.97 | 11.27 | 10.56 | 9.86 | 8.80 | |
| 12 x 12 x 72" | Inside Telescopic HSC | 15/90 | 17.68 | 16.64 | 15.60 | 14.56 | 13.00 | |
| 12 1/8 x 12 1/8 x 13 9/16" | ECT-51 Double Wall Corrugated | 10/160 | 10.78 | 10.14 | 9.51 | 8.87 | 7.92 | |
| 12 1/4 x 9 1/4 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.69 | 1.60 | 1.50 | 1.40 | 1.25 | |
| 12 1/4 x 9 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.55 | 1.46 | 1.37 | 1.28 | 1.14 | |
| 12 1/4 x 9 1/4 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.54 | 1.45 | 1.36 | 1.27 | 1.13 | |
| 12 1/4 x 9 1/4 x 12" | 10,8,6" | 25/500 | 1.72 | 1.62 | 1.52 | 1.42 | 1.26 | |
| 12 1/4 x 12 1/4 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/480 | 11.79 | 11.09 | 10.40 | 9.71 | 8.67 | |
| 12 5/16 x 12 5/16 x 40" | Printed Outer Lamp Box HSC | 15/120 | 4.69 | 4.41 | 4.13 | 3.86 | 3.45 | |
| 12 1/2 x 3 x 17 1/2" | FOL Self Seal White | 25/875 | 6.18 | 5.82 | 5.45 | 5.09 | 4.54 | |
| 12 1/2 x 4 1/2 x 48" | Outer Telescopic HSC | 15/180 | 8.31 | 7.82 | 7.33 | 6.84 | 6.11 | |
| 12 1/2 x 12 1/2 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.54 | 1.45 | 1.36 | 1.27 | 1.14 | |
| 12 1/2 x 12 1/2 x 6" | 4,2" | 25/500 | 1.83 | 1.72 | 1.62 | 1.51 | 1.35 | |
| 12 1/2 x 12 1/2 x 12" | ECT-32 Single Wall Corrugated | 25/250 | 2.02 | 1.90 | 1.78 | 1.67 | 1.49 | |
| 12 1/2 x 12 1/2 x 12" | 10,8,6" | 25/250 | 2.40 | 2.26 | 2.12 | 1.98 | 1.77 | |
| 12 1/2 x 12 1/2 x 15" | ECT-48 Double Wall Corrugated | 15/150 | 3.73 | 3.51 | 3.29 | 3.07 | 2.74 | |
| 12 1/2 x 12 1/2 x 15 1/8" | ECT-48 Double Wall Corrugated | 10/160 | 11.14 | 10.48 | 9.83 | 9.17 | 8.19 | |
| 12 1/2 x 12 1/2 x 48" | Outside Telescopic HSC | 15/120 | 8.76 | 8.24 | 7.73 | 7.21 | 6.44 | |
| 12 1/2 x 12 1/2 x 72" | Outside Telescopic HSC | 15/90 | 18.65 | 17.55 | 16.46 | 15.36 | 13.71 | |
| 12 3/4 x 6 3/8 x 13 1/2" | Holds 4 - 6 x 6 x 6" Boxes | 25/500 | 1.37 | 1.29 | 1.21 | 1.13 | 1.01 | |
| 12 3/4 x 12 3/4 x 13 1/2" | Holds 8 - 6 x 6 x 6" Boxes | 25/250 | 2.45 | 2.31 | 2.16 | 2.02 | 1.80 | |
| 13 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | 1.08 | 1.02 | .96 | .89 | .80 | |
| 13 x 3 x 30" | FOL | 25/375 | 4.89 | 4.60 | 4.31 | 4.03 | 3.59 | |
| 13 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.12 | 1.05 | .99 | .92 | .82 | |
| 13 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.86 | 1.75 | 1.64 | 1.53 | 1.37 | |
| 13 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.23 | 1.15 | 1.08 | 1.01 | .90 | |
| 13 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/900 | 1.75 | 1.64 | 1.54 | 1.44 | 1.28 | |
| 13 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.19 | 1.12 | 1.05 | .98 | .88 | |
| 13 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.27 | 1.20 | 1.12 | 1.05 | .94 | |
| 13 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 2.09 | 1.97 | 1.85 | 1.72 | 1.54 | |
| 13 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.37 | 1.29 | 1.21 | 1.13 | 1.01 | |
| 13 x 9 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.48 | 1.39 | 1.30 | 1.22 | 1.09 | |
| 13 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 2.07 | 1.95 | 1.82 | 1.70 | 1.52 | |
| 13 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/500 | 1.11 | 1.04 | .98 | .91 | .81 | |
| 13 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.26 | 1.18 | 1.11 | 1.03 | .92 | |
| 13 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.32 | 1.24 | 1.16 | 1.08 | .97 | |
| 13 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.36 | 1.28 | 1.20 | 1.12 | 1.00 | |
| 13 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.40 | 1.32 | 1.24 | 1.16 | 1.03 | |
| 13 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.38 | 1.29 | 1.21 | 1.08 | |
| 13 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.53 | 1.44 | 1.35 | 1.26 | 1.12 | |
| 13 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 2.73 | 2.57 | 2.41 | 2.25 | 2.01 | |
| 13 x 10 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 2.45 | 2.30 | 2.16 | 2.02 | 1.80 | |
| 13 x 10 x 15" | ECT-32 Single Wall Corrugated | 25/500 | 3.12 | 2.94 | 2.75 | 2.57 | 2.29 | |
| 13 x 11 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.99 | 1.88 | 1.76 | 1.64 | 1.47 | |
| 13 x 11 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.34 | 1.26 | 1.18 | 1.10 | .98 | |
| 13 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.36 | 1.28 | 1.20 | 1.12 | 1.00 | |
| 13 x 11 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.52 | 1.43 | 1.34 | 1.25 | 1.12 | |
| 13 x 11 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.53 | 1.44 | 1.35 | 1.26 | 1.13 | |
| 13 x 11 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.60 | 1.51 | 1.41 | 1.32 | 1.18 | |
| 13 x 11 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.80 | 1.69 | 1.59 | 1.48 | 1.32 | |
| 13 x 13 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 2.49 | 2.34 | 2.19 | 2.05 | 1.83 | |
| 13 x 13 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 2.24 | 2.11 | 1.97 | 1.84 | 1.65 | |
| 13 x 13 x 4" | ECT-32 Single Wall Corrugated | 25/250 | 1.42 | 1.34 | 1.25 | 1.17 | 1.04 | |
| 13 x 13 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.66 | 1.56 | 1.46 | 1.36 | 1.22 | |
| 13 x 13 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.65 | 1.55 | 1.45 | 1.36 | 1.21 | |
| 13 x 13 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.75 | 1.64 | 1.54 | 1.44 | 1.28 | |
| 13 x 13 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.88 | 1.77 | 1.66 | 1.55 | 1.38 | |
| 13 x 13 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.90 | 1.79 | 1.67 | 1.56 | 1.40 | |
| 13 x 13 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 2.00 | 1.88 | 1.77 | 1.65 | 1.47 | |
| 13 x 13 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 2.85 | 2.68 | 2.52 | 2.35 | 2.10 | |
| 13 x 13 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 1.96 | 1.85 | 1.73 | 1.62 | 1.44 | |
| 13 x 13 x 13" | 11,9,7" | 25/500 | 2.21 | 2.08 | 1.95 | 1.82 | 1.63 | |
| 13 x 13 x 13" | ECT-44 Single Wall Corrugated | 25/500 | 5.15 | 4.85 | 4.55 | 4.24 | 3.79 | |
| 13 x 13 x 13" | ECT-48 Double Wall Corrugated | 15/180 | 3.72 | 3.50 | 3.28 | 3.07 | 2.74 | |
| 13 x 13 x 15" | ECT-32 Single Wall Corrugated | 25/250 | 2.72 | 2.56 | 2.40 | 2.24 | 2.00 | |
| 13 x 13 x 17" | ECT-32 Single Wall Corrugated | 25/250 | 3.66 | 3.44 | 3.23 | 3.01 | 2.69 | |
| 13 1/4 x 10 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.53 | 1.44 | 1.35 | 1.26 | 1.13 | |
| 13 1/4 x 10 1/4 x 12" | 10,8,6" | 25/300 | 1.98 | 1.87 | 1.75 | 1.63 | 1.46 | |
| 13 1/2 x 13 1/2 x 7 1/2" | ECT-32 Single Wall Corrugated | 25/500 | 1.89 | 1.78 | 1.67 | 1.56 | 1.39 | |
| 13 3/4 x 9 x 10 3/8" | ECT-51 Double Wall Corrugated | 20/160 | 16.36 | 15.40 | 14.44 | 13.47 | 12.03 | |
| 13 3/4 x 10 1/4 x 9 1/8" | ECT-32 Single Wall Corrugated | 25/500 | 1.50 | 1.42 | 1.33 | 1.24 | 1.11 | |