| 12 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | $1.10 | $1.01 | $.98 | $.92 | $.78 | |
| 12 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/900 | .51 | .51 | .51 | .51 | .51 | |
| 12 x 4 x 48" | Inside Telescopic HSC | 15/180 | 5.36 | 5.36 | 5.36 | 5.36 | 5.36 | |
| 12 x 5 x 4" | ECT-32 Single Wall Corrugated | 25/1500 | .71 | .65 | .63 | .60 | .58 | |
| 12 x 5 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .97 | .84 | .75 | .68 | .63 | |
| 12 x 6 x 2" | ECT-32 Single Wall Corrugated | 25/1500 | .96 | .89 | .83 | .83 | .83 | |
| 12 x 6 x 3" | ECT-32 Single Wall Corrugated | 25/1250 | .92 | .81 | .73 | .67 | .60 | |
| 12 x 6 x 4" | ECT-32 Single Wall Corrugated | 25/1000 | .55 | .55 | .55 | .55 | .50 | |
| 12 x 6 x 5" | ECT-32 Single Wall Corrugated | 25/1000 | .98 | .86 | .76 | .71 | .65 | |
| 12 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/1000 | .58 | .58 | .58 | .58 | .55 | |
| 12 x 6 x 6" | 4,2" | 25/750 | 1.00 | 1.00 | 1.00 | 1.00 | .90 | |
| 12 x 6 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 12 x 6 x 8" | ECT-32 Single Wall Corrugated | 25/750 | 1.10 | 1.00 | .87 | .80 | .73 | |
| 12 x 6 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.43 | 1.29 | 1.10 | 1.00 | 1.00 | |
| 12 x 6 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/560 | 11.41 | 10.27 | 9.54 | 9.13 | 8.86 | |
| 12 x 7 x 5" | ECT-32 Single Wall Corrugated | 25/900 | 1.32 | 1.11 | 1.01 | .96 | .89 | |
| 12 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/900 | 1.38 | 1.27 | 1.17 | 1.02 | .95 | |
| 12 x 8 x 3" | ECT-32 Single Wall Corrugated | 25/1000 | 1.12 | 1.02 | .97 | .94 | .90 | |
| 12 x 8 x 4" | ECT-32 Single Wall Corrugated | 25/750 | 1.10 | 1.01 | .87 | .82 | .77 | |
| 12 x 8 x 5" | ECT-32 Single Wall Corrugated | 25/750 | 1.09 | .99 | .86 | .79 | .72 | |
| 12 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/750 | .65 | .65 | .65 | .65 | .62 | |
| 12 x 8 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.24 | 2.20 | 2.13 | 2.05 | 1.98 | |
| 12 x 8 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.18 | 1.09 | .99 | .88 | .80 | |
| 12 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | .69 | .69 | .69 | .69 | .66 | |
| 12 x 8 x 8" | White | 25/900 | 1.23 | 1.21 | 1.18 | 1.14 | 1.12 | |
| 12 x 8 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.82 | 1.68 | 1.37 | 1.31 | 1.31 | |
| 12 x 9 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.60 | 1.47 | 1.43 | 1.34 | 1.05 | |
| 12 x 9 x 3" | ECT-32 Single Wall Corrugated | 25/750 | .69 | .69 | .69 | .69 | .66 | |
| 12 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/500 | .70 | .70 | .70 | .70 | .67 | |
| 12 x 9 x 4" | White | 25/500 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 12 x 9 x 5" | ECT-32 Single Wall Corrugated | 25/500 | .94 | .83 | .80 | .80 | .80 | |
| 12 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .79 | .79 | .79 | .79 | .75 | |
| 12 x 9 x 6" | 4,2" | 25/500 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 12 x 9 x 6" | ECT-48 Double Wall Corrugated | 15/450 | 2.86 | 2.61 | 2.49 | 2.29 | 2.19 | |
| 12 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | .83 | .83 | .83 | .81 | .79 | |
| 12 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.45 | 1.28 | 1.09 | 1.00 | .97 | |
| 12 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | .87 | .87 | .87 | .85 | .81 | |
| 12 x 9 x 9" | ECT-48 Double Wall Corrugated | 15/300 | 2.58 | 2.58 | 2.58 | 2.58 | 2.58 | |
| 12 x 9 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.49 | 1.35 | 1.12 | 1.04 | 1.00 | |
| 12 x 9 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.00 | 1.00 | .99 | .92 | .88 | |
| 12 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.99 | 1.83 | 1.78 | 1.68 | 1.31 | |
| 12 x 10 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.24 | 1.11 | 1.01 | .94 | .87 | |
| 12 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/750 | .81 | .81 | .81 | .81 | .78 | |
| 12 x 10 x 4" | 2" | 25/750 | 1.18 | 1.18 | 1.18 | 1.18 | 1.18 | |
| 12 x 10 x 4" | ECT-44 Single Wall Corrugated | 25/750 | 2.20 | 2.07 | 2.00 | 1.93 | 1.79 | |
| 12 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | .85 | .85 | .85 | .85 | .80 | |
| 12 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .86 | .84 | .84 | .82 | .80 | |
| 12 x 10 x 6" | 4,2" | 25/500 | 1.68 | 1.54 | 1.50 | 1.41 | 1.19 | |
| 12 x 10 x 6" | White | 25/500 | 1.25 | 1.25 | 1.25 | 1.15 | 1.05 | |
| 12 x 10 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.40 | 1.40 | 1.40 | 1.38 | 1.35 | |
| 12 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.32 | 1.11 | 1.03 | 1.00 | |
| 12 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | .87 | .87 | .87 | .85 | .83 | |
| 12 x 10 x 8" | 6,4" | 25/500 | 1.00 | 1.00 | 1.00 | .95 | .90 | |
| 12 x 10 x 8" | White | 25/500 | 1.25 | 1.25 | 1.25 | 1.20 | 1.17 | |
| 12 x 10 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 1.75 | 1.65 | 1.50 | 1.43 | 1.39 | |
| 12 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.49 | 1.36 | 1.12 | 1.04 | 1.00 | |
| 12 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | .88 | .88 | .88 | .88 | .84 | |
| 12 x 10 x 10" | White | 25/500 | 1.48 | 1.48 | 1.43 | 1.39 | 1.29 | |
| 12 x 10 x 10" | ECT-48 Double Wall Corrugated | 15/300 | 3.74 | 3.53 | 3.23 | 3.04 | 2.88 | |
| 12 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.57 | 1.45 | 1.18 | 1.08 | 1.04 | |
| 12 x 10 x 14" | ECT-32 Single Wall Corrugated | 25/500 | 2.04 | 2.04 | 2.04 | 2.04 | 2.04 | |
| 12 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.41 | 1.30 | 1.26 | 1.19 | 1.15 | |
| 12 x 12 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 1.93 | 1.78 | 1.72 | 1.62 | 1.27 | |
| 12 x 12 x 3" | ECT-32 Single Wall Corrugated | 25/500 | .90 | .90 | .90 | .82 | .80 | |
| 12 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/500 | 1.13 | 1.13 | 1.09 | 1.05 | 1.02 | |
| 12 x 12 x 4" | 2" | 25/500 | 1.81 | 1.67 | 1.62 | 1.52 | 1.48 | |
| 12 x 12 x 4" | White | 25/500 | 1.95 | 1.88 | 1.82 | 1.75 | 1.62 | |
| 12 x 12 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.14 | 1.03 | .91 | .87 | .84 | |
| 12 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .87 | .87 | .87 | .86 | .84 | |
| 12 x 12 x 6" | 4" | 25/500 | 1.25 | 1.25 | 1.25 | 1.20 | 1.10 | |
| 12 x 12 x 6" | White | 25/500 | 1.60 | 1.52 | 1.31 | 1.20 | 1.10 | |
| 12 x 12 x 6" | ECT-44 Single Wall Corrugated | 25/500 | 1.70 | 1.68 | 1.56 | 1.45 | 1.40 | |
| 12 x 12 x 6" | ECT-48 Double Wall Corrugated | 15/300 | 2.83 | 2.63 | 2.43 | 2.23 | 2.13 | |
| 12 x 12 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.59 | 1.45 | 1.21 | 1.16 | .84 | |
| 12 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/500 | .97 | .97 | .97 | .95 | .92 | |
| 12 x 12 x 8" | 6,4" | 25/500 | 2.23 | 2.06 | 2.00 | 1.88 | 1.82 | |
| 12 x 12 x 8" | White | 25/500 | 1.94 | 1.77 | 1.50 | 1.40 | 1.34 | |
| 12 x 12 x 8" | ECT-44 Single Wall Corrugated | 25/500 | 3.28 | 3.07 | 2.96 | 2.75 | 2.65 | |
| 12 x 12 x 8" | ECT-48 Double Wall Corrugated | 15/300 | 2.50 | 2.50 | 2.50 | 2.37 | 2.20 | |
| 12 x 12 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.47 | 1.31 | 1.12 | 1.06 | 1.00 | |
| 12 x 12 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.04 | 1.04 | 1.04 | 1.02 | 1.00 | |
| 12 x 12 x 10" | 8,6,4" | 25/500 | 2.45 | 2.26 | 2.19 | 2.06 | 2.00 | |
| 12 x 12 x 10" | White | 25/500 | 2.00 | 1.93 | 1.60 | 1.50 | 1.42 | |
| 12 x 12 x 10" | ECT-44 Single Wall Corrugated | 25/500 | 3.40 | 3.29 | 3.17 | 2.95 | 2.83 | |
| 12 x 12 x 10" | ECT-48 Double Wall Corrugated | 15/150 | 3.00 | 2.86 | 2.63 | 2.45 | 2.25 | |
| 12 x 12 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.48 | 1.48 | 1.48 | 1.25 | 1.25 | |
| 12 x 12 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.40 | 1.40 | 1.37 | 1.37 | 1.37 | |
| 12 x 12 x 12" | 10,8" | 25/500 | 1.55 | 1.55 | 1.55 | 1.52 | 1.45 | |
| 12 x 12 x 12" | White | 25/500 | 1.50 | 1.50 | 1.50 | 1.45 | 1.40 | |
| 12 x 12 x 12" | ECT-44 Single Wall Corrugated | 25/250 | 2.20 | 2.07 | 1.90 | 1.80 | 1.72 | |
| 12 x 12 x 12" | V3c - 350# Single Wall | 20/200 | 13.12 | 12.09 | 11.74 | 11.05 | 10.71 | |
| 12 x 12 x 12" | ECT-48 Double Wall Corrugated | 15/150 | 2.40 | 2.40 | 2.40 | 2.37 | 2.32 | |
| 12 x 12 x 12" | ECT-71 Double Wall Corrugated | 15/150 | 9.80 | 9.15 | 8.68 | 8.09 | 7.61 | |
| 12 x 12 x 12" | Printed Deluxe Packing Box | 25/500 | 2.72 | 2.57 | 2.43 | 2.43 | 2.43 | |
| 12 x 12 x 12" | ECT-90 Triple Wall Corrugated | 5/30 | 26.65 | 25.27 | 24.68 | 24.28 | 23.69 | |
| 12 x 12 x 13" | ECT-32 Corrugated | 25/300 | 1.61 | 1.55 | 1.48 | 1.46 | 1.43 | |
| 12 x 12 x 14" | ECT-32 Corrugated | 25/250 | 2.18 | 1.95 | 1.75 | 1.70 | 1.50 | |
| 12 x 12 x 15" | ECT-32 Corrugated | 25/250 | 2.21 | 1.98 | 1.78 | 1.71 | 1.55 | |
| 12 x 12 x 16" | ECT-32 Corrugated | 25/250 | 2.27 | 2.06 | 1.89 | 1.77 | 1.60 | |
| 12 x 12 x 16" | ECT-48 Double Wall Corrugated | 15/150 | 4.15 | 3.87 | 3.73 | 3.59 | 3.59 | |
| 12 x 12 x 18" | ECT-32 Single Wall Corrugated | 25/250 | 2.28 | 2.06 | 1.87 | 1.78 | 1.67 | |
| 12 x 12 x 18" | 16,14,12,10" | 25/500 | 1.75 | 1.75 | 1.75 | 1.75 | 1.57 | |
| 12 x 12 x 18" | ECT-48 Double Wall Corrugated | 15/150 | 4.68 | 4.35 | 4.28 | 4.12 | 4.12 | |
| 12 x 12 x 20" | ECT-32 Single Wall Corrugated | 25/250 | 2.30 | 2.13 | 2.00 | 1.84 | 1.69 | |
| 12 x 12 x 24" | 2 Cubic Feet | 25/250 | 2.77 | 2.55 | 2.38 | 2.17 | 1.99 | |
| 12 x 12 x 30" | ECT-32 Single Wall Corrugated | 15/240 | 3.30 | 3.05 | 2.83 | 2.70 | 2.38 | |
| 12 x 12 x 36" | 3 Cubic Feet | 15/240 | 3.84 | 3.51 | 3.28 | 3.10 | 2.80 | |
| 12 x 12 x 40" | ECT-32 Single Wall Corrugated | 15/120 | 4.55 | 4.18 | 3.89 | 3.68 | 3.30 | |
| 12 x 12 x 46" | Inner Lamp Box HSC | 15/120 | 4.76 | 4.76 | 4.61 | 4.45 | 4.30 | |
| 12 x 12 x 48" | ECT-32 Single Wall Corrugated | 15/120 | 3.31 | 3.31 | 3.31 | 3.31 | 3.31 | |
| 12 x 12 x 48" | ECT-48 Double Wall Corrugated | 10/90 | 12.19 | 11.25 | 10.45 | 9.87 | 9.44 | |
| 12 x 12 x 48" | Inside Telescopic HSC | 15/120 | 8.88 | 8.18 | 7.95 | 7.48 | 7.25 | |
| 12 x 12 x 52" | ECT-32 Single Wall Corrugated | 15/240 | 7.01 | 7.01 | 7.01 | 7.01 | 7.01 | |
| 12 x 12 x 60" | ECT-32 Single Wall Corrugated | 10/120 | 7.46 | 6.86 | 6.45 | 6.15 | 5.65 | |
| 12 x 12 x 72" | ECT-32 Single Wall Corrugated | 10/120 | 8.25 | 7.67 | 7.28 | 7.00 | 6.30 | |
| 12 x 12 x 72" | Inside Telescopic HSC | 15/90 | 18.80 | 17.31 | 16.82 | 15.83 | 15.33 | |
| 12 1/8 x 12 1/8 x 13 9/16" | ECT-51 Double Wall Corrugated | 10/160 | 13.79 | 11.49 | 11.11 | 10.73 | 10.34 | |
| 12 1/4 x 9 1/4 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | |
| 12 1/4 x 9 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 12 1/4 x 9 1/4 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.35 | 1.27 | 1.07 | 1.01 | 1.01 | |
| 12 1/4 x 9 1/4 x 12" | 10,8,6" | 25/500 | 1.80 | 1.70 | 1.50 | 1.40 | 1.33 | |
| 12 1/4 x 12 1/4 x 12 3/4" | ECT-44 Single Wall Corrugated | 20/480 | 18.43 | 16.75 | 15.75 | 15.41 | 15.08 | |
| 12 5/16 x 12 5/16 x 40" | Printed Outer Lamp Box HSC | 15/120 | 5.65 | 4.94 | 4.66 | 4.66 | 4.66 | |
| 12 1/2 x 3 x 17 1/2" | FOL Self Seal White | 25/875 | 6.46 | 6.03 | 5.60 | 5.38 | 5.17 | |
| 12 1/2 x 4 1/2 x 48" | Outer Telescopic HSC | 15/180 | 5.84 | 5.84 | 5.84 | 5.84 | 5.84 | |
| 12 1/2 x 12 1/2 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.40 | 1.40 | 1.40 | 1.40 | 1.35 | |
| 12 1/2 x 12 1/2 x 6" | 4,2" | 25/500 | 1.40 | 1.40 | 1.40 | 1.40 | 1.35 | |
| 12 1/2 x 12 1/2 x 12" | ECT-32 Single Wall Corrugated | 25/250 | 1.75 | 1.75 | 1.75 | 1.70 | 1.40 | |
| 12 1/2 x 12 1/2 x 12" | 10,8,6" | 25/250 | 2.00 | 1.90 | 1.75 | 1.70 | 1.50 | |
| 12 1/2 x 12 1/2 x 15" | ECT-48 Double Wall Corrugated | 15/150 | 4.07 | 3.73 | 3.48 | 3.30 | 3.02 | |
| 12 1/2 x 12 1/2 x 15 1/8" | ECT-48 Double Wall Corrugated | 10/160 | 15.02 | 13.83 | 13.44 | 12.65 | 12.25 | |
| 12 1/2 x 12 1/2 x 48" | Outside Telescopic HSC | 15/120 | 9.31 | 8.58 | 8.33 | 7.84 | 7.60 | |
| 12 1/2 x 12 1/2 x 72" | Outside Telescopic HSC | 15/90 | 19.36 | 17.83 | 17.32 | 16.31 | 15.80 | |
| 12 3/4 x 6 3/8 x 13 1/2" | Holds 4 - 6 x 6 x 6" Boxes | 25/500 | 1.57 | 1.46 | 1.24 | 1.17 | 1.13 | |
| 12 3/4 x 12 3/4 x 13 1/2" | Holds 8 - 6 x 6 x 6" Boxes | 25/250 | 2.10 | 2.00 | 1.79 | 1.75 | 1.60 | |
| 13 x 3 x 3" | ECT-32 Single Wall Corrugated | 25/1800 | .88 | .85 | .82 | .82 | .82 | |
| 13 x 3 x 30" | FOL | 25/375 | 3.68 | 3.54 | 3.43 | 3.38 | 3.27 | |
| 13 x 7 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.10 | 1.02 | .95 | .84 | .79 | |
| 13 x 8 x 6" | ECT-32 Single Wall Corrugated | 25/900 | 1.45 | 1.45 | 1.45 | 1.45 | 1.45 | |
| 13 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.35 | 1.17 | 1.00 | .97 | .90 | |
| 13 x 9 x 4" | ECT-32 Single Wall Corrugated | 25/900 | 1.46 | 1.41 | 1.36 | 1.31 | 1.26 | |
| 13 x 9 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.57 | 1.44 | 1.20 | 1.14 | 1.05 | |
| 13 x 9 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.55 | 1.44 | 1.20 | 1.15 | 1.05 | |
| 13 x 9 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.62 | 1.52 | 1.47 | 1.42 | 1.40 | |
| 13 x 9 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.65 | 1.48 | 1.30 | 1.20 | 1.10 | |
| 13 x 9 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.67 | 1.49 | 1.30 | 1.21 | 1.11 | |
| 13 x 10 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 2.05 | 1.88 | 1.83 | 1.72 | 1.40 | |
| 13 x 10 x 4" | ECT-32 Single Wall Corrugated | 25/500 | .82 | .82 | .82 | .82 | .82 | |
| 13 x 10 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.10 | 1.10 | 1.09 | 1.00 | .99 | |
| 13 x 10 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .88 | .88 | .88 | .84 | .83 | |
| 13 x 10 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.46 | 1.30 | 1.16 | 1.10 | 1.05 | |
| 13 x 10 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.56 | 1.44 | 1.22 | 1.12 | 1.05 | |
| 13 x 10 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.66 | 1.51 | 1.32 | 1.20 | 1.13 | |
| 13 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.15 | 1.15 | 1.15 | 1.09 | 1.00 | |
| 13 x 10 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | |
| 13 x 10 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 2.05 | 1.98 | 1.91 | 1.84 | 1.77 | |
| 13 x 10 x 15" | ECT-32 Single Wall Corrugated | 25/500 | 2.31 | 2.24 | 2.17 | 2.12 | 2.09 | |
| 13 x 11 x 2" | ECT-32 Single Wall Corrugated | 25/900 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | |
| 13 x 11 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.45 | 1.28 | 1.10 | 1.00 | .99 | |
| 13 x 11 x 6" | ECT-32 Single Wall Corrugated | 25/500 | .90 | .90 | .90 | .89 | .85 | |
| 13 x 11 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.49 | 1.40 | 1.11 | 1.05 | 1.00 | |
| 13 x 11 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.59 | 1.48 | 1.23 | 1.15 | 1.07 | |
| 13 x 11 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.68 | 1.55 | 1.30 | 1.20 | 1.11 | |
| 13 x 11 x 11" | ECT-32 Single Wall Corrugated | 25/500 | 1.99 | 1.89 | 1.79 | 1.69 | 1.54 | |
| 13 x 13 x 2" | ECT-32 Single Wall Corrugated | 25/500 | 2.21 | 2.14 | 2.07 | 1.99 | 1.92 | |
| 13 x 13 x 3" | ECT-32 Single Wall Corrugated | 25/500 | 1.67 | 1.62 | 1.57 | 1.53 | 1.50 | |
| 13 x 13 x 4" | ECT-32 Single Wall Corrugated | 25/250 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |
| 13 x 13 x 5" | ECT-32 Single Wall Corrugated | 25/500 | 1.57 | 1.43 | 1.20 | 1.13 | 1.05 | |
| 13 x 13 x 6" | ECT-32 Single Wall Corrugated | 25/500 | 1.68 | 1.50 | 1.35 | 1.29 | 1.11 | |
| 13 x 13 x 7" | ECT-32 Single Wall Corrugated | 25/500 | 1.77 | 1.59 | 1.45 | 1.40 | 1.25 | |
| 13 x 13 x 8" | ECT-32 Single Wall Corrugated | 25/500 | 1.81 | 1.66 | 1.50 | 1.44 | 1.35 | |
| 13 x 13 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.90 | 1.70 | 1.55 | 1.49 | 1.40 | |
| 13 x 13 x 10" | ECT-32 Single Wall Corrugated | 25/500 | 1.96 | 1.77 | 1.62 | 1.50 | 1.39 | |
| 13 x 13 x 12" | ECT-32 Single Wall Corrugated | 25/500 | 2.23 | 2.06 | 1.94 | 1.91 | 1.86 | |
| 13 x 13 x 13" | ECT-32 Single Wall Corrugated | 25/500 | 1.30 | 1.30 | 1.30 | 1.27 | 1.26 | |
| 13 x 13 x 13" | 11,9,7" | 25/500 | 2.00 | 2.00 | 1.75 | 1.74 | 1.68 | |
| 13 x 13 x 13" | ECT-44 Single Wall Corrugated | 25/500 | 5.46 | 5.03 | 4.88 | 3.50 | 3.45 | |
| 13 x 13 x 13" | ECT-48 Double Wall Corrugated | 15/180 | 3.75 | 3.47 | 3.22 | 3.02 | 2.80 | |
| 13 x 13 x 15" | ECT-32 Single Wall Corrugated | 25/250 | 2.55 | 2.26 | 2.01 | 1.88 | 1.77 | |
| 13 x 13 x 17" | ECT-32 Single Wall Corrugated | 25/250 | 3.15 | 2.82 | 2.57 | 2.41 | 2.33 | |
| 13 1/4 x 10 1/4 x 9" | ECT-32 Single Wall Corrugated | 25/500 | 1.66 | 1.50 | 1.33 | 1.25 | 1.18 | |
| 13 1/4 x 10 1/4 x 12" | 10,8,6" | 25/300 | 1.66 | 1.66 | 1.66 | 1.60 | 1.49 | |
| 13 1/2 x 13 1/2 x 7 1/2" | ECT-32 Single Wall Corrugated | 25/500 | 1.80 | 1.61 | 1.47 | 1.40 | 1.26 | |
| 13 3/4 x 9 x 10 3/8" | ECT-51 Double Wall Corrugated | 20/160 | 18.00 | 15.09 | 14.74 | 14.51 | 14.16 | |
| 13 3/4 x 10 1/4 x 9 1/8" | ECT-32 Single Wall Corrugated | 25/500 | 2.04 | 1.77 | 1.63 | 1.55 | 1.47 | |