| 27 x 14 x 9" | ECT-32 Single Wall Corrugated | 20/240 | $2.14 | $2.12 | $2.10 | $2.08 | $2.06 | |
| 27 x 27 x 27" | ECT-32 Single Wall Corrugated | 5/120 | 6.93 | 6.87 | 6.81 | 6.75 | 6.69 | |
| 28 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/625 | 1.40 | 1.38 | 1.37 | 1.36 | 1.35 | |
| 28 x 5 x 24" | FOL | 10/120 | 3.67 | 3.64 | 3.60 | 3.57 | 3.54 | |
| 28 x 5 x 38" | FOL | 20/120 | 5.16 | 5.11 | 5.07 | 5.02 | 4.98 | |
| 28 x 6 x 6" | ECT-32 Single Wall Corrugated | 20/240 | 1.11 | 1.10 | 1.09 | 1.08 | 1.07 | |
| 28 x 6 x 20" | ECT-44 Single Wall Corrugated | 5/120 | 6.49 | 6.44 | 6.38 | 6.32 | 6.26 | |
| 28 x 6 x 52" | FOL | 5/120 | 9.61 | 9.52 | 9.43 | 9.35 | 9.26 | |
| 28 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.27 | 1.26 | 1.25 | 1.24 | 1.23 | |
| 28 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/300 | 1.83 | 1.81 | 1.80 | 1.78 | 1.76 | |
| 28 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/300 | 1.62 | 1.61 | 1.59 | 1.58 | 1.56 | |
| 28 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/300 | 2.80 | 2.77 | 2.75 | 2.72 | 2.70 | |
| 28 x 12 x 12" | ECT-32 Single Wall Corrugated | 20/240 | 2.11 | 2.09 | 2.07 | 2.05 | 2.03 | |
| 28 x 14 x 14" | ECT-32 Single Wall Corrugated | 20/120 | 2.67 | 2.65 | 2.62 | 2.60 | 2.58 | |
| 28 x 16 x 5" | ECT-32 Single Wall Corrugated | 25/300 | 3.41 | 3.38 | 3.35 | 3.32 | 3.29 | |
| 28 x 16 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 2.35 | 2.33 | 2.31 | 2.29 | 2.26 | |
| 28 x 16 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 2.56 | 2.53 | 2.51 | 2.49 | 2.46 | |
| 28 x 16 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 2.76 | 2.73 | 2.71 | 2.68 | 2.66 | |
| 28 x 16 x 14" | ECT-32 Single Wall Corrugated | 15/120 | 3.13 | 3.10 | 3.07 | 3.05 | 3.02 | |
| 28 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.18 | 2.16 | 2.14 | 2.12 | 2.10 | |
| 28 x 18 x 6" | ECT-32 Single Wall Corrugated | 20/140 | 4.32 | 4.28 | 4.24 | 4.20 | 4.16 | |
| 28 x 18 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 3.56 | 3.53 | 3.50 | 3.46 | 3.43 | |
| 28 x 18 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 3.80 | 3.77 | 3.74 | 3.70 | 3.67 | |
| 28 x 18 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 2.96 | 2.94 | 2.91 | 2.88 | 2.86 | |
| 28 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/150 | 3.24 | 3.21 | 3.18 | 3.15 | 3.12 | |
| 28 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 9.04 | 8.96 | 8.88 | 8.80 | 8.71 | |
| 28 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 4.79 | 4.75 | 4.71 | 4.66 | 4.62 | |
| 28 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.35 | 3.32 | 3.29 | 3.26 | 3.23 | |
| 28 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 4.00 | 3.96 | 3.93 | 3.89 | 3.86 | |
| 28 x 20 x 24" | 22,20,18,16,14" | 10/120 | 7.35 | 7.29 | 7.22 | 7.16 | 7.09 | |
| 28 x 20 x 25" | ECT-32 Single Wall Corrugated | 10/120 | 5.03 | 4.98 | 4.94 | 4.89 | 4.85 | |
| 28 x 24 x 6" | ECT-32 Single Wall Corrugated | 10/240 | 3.54 | 3.50 | 3.47 | 3.44 | 3.41 | |
| 28 x 24 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 9.03 | 8.95 | 8.87 | 8.79 | 8.71 | |
| 28 x 28 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 4.61 | 4.57 | 4.53 | 4.49 | 4.45 | |
| 28 x 28 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 9.08 | 9.00 | 8.92 | 8.83 | 8.75 | |
| 28 x 28 x 10" | ECT-32 Single Wall Corrugated | 10/150 | 8.60 | 8.53 | 8.45 | 8.37 | 8.29 | |
| 28 x 28 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 5.17 | 5.13 | 5.08 | 5.04 | 4.99 | |
| 28 x 28 x 12" | ECT-48 Double Wall Corrugated | 10/90 | 16.34 | 16.20 | 16.05 | 15.90 | 15.76 | |
| 28 x 28 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 6.46 | 6.41 | 6.35 | 6.29 | 6.23 | |
| 28 x 28 x 22" | ECT-32 Single Wall Corrugated | 10/150 | 9.89 | 9.80 | 9.71 | 9.63 | 9.54 | |
| 28 x 28 x 28" | ECT-32 Single Wall Corrugated | 5/120 | 7.48 | 7.41 | 7.34 | 7.28 | 7.21 | |
| 28 x 28 x 28" | ECT-48 Double Wall Corrugated | 5/90 | 16.97 | 16.82 | 16.67 | 16.51 | 16.36 | |
| 29 x 17 x 3" | ECT-32 Single Wall Corrugated | 25/300 | 3.53 | 3.50 | 3.47 | 3.44 | 3.41 | |
| 29 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.34 | 2.32 | 2.30 | 2.28 | 2.26 | |
| 29 x 17 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 4.11 | 4.07 | 4.03 | 4.00 | 3.96 | |
| 29 x 17 x 9" | ECT-32 Single Wall Corrugated | 15/150 | 2.66 | 2.63 | 2.61 | 2.59 | 2.56 | |
| 29 x 17 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.14 | 3.12 | 3.09 | 3.06 | 3.03 | |
| 29 x 17 x 15" | ECT-32 Single Wall Corrugated | 15/150 | 3.36 | 3.33 | 3.30 | 3.27 | 3.24 | |
| 29 x 17 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 4.14 | 4.10 | 4.06 | 4.03 | 3.99 | |
| 29 x 24 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 10.67 | 10.58 | 10.48 | 10.39 | 10.29 | |
| 30 x 5 x 24" | FOL | 10/120 | 2.72 | 2.70 | 2.67 | 2.65 | 2.62 | |
| 30 x 5 x 30" | FOL | 10/120 | 3.22 | 3.19 | 3.17 | 3.14 | 3.11 | |
| 30 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/375 | 1.15 | 1.14 | 1.13 | 1.12 | 1.11 | |
| 30 x 6 x 24" | ECT-44 Corrugated | 10/140 | 6.98 | 6.92 | 6.86 | 6.79 | 6.73 | |
| 30 x 6 x 24" | Inside Telescopic HSC | 10/150 | 4.33 | 4.29 | 4.26 | 4.22 | 4.18 | |
| 30 x 6 x 30" | ECT-44 Corrugated | 10/120 | 8.16 | 8.09 | 8.02 | 7.94 | 7.87 | |
| 30 x 6 x 40" | ECT-44 Corrugated | 10/140 | 10.08 | 9.99 | 9.90 | 9.81 | 9.72 | |
| 30 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.42 | 1.41 | 1.39 | 1.38 | 1.37 | |
| 30 x 10 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 1.74 | 1.73 | 1.71 | 1.70 | 1.68 | |
| 30 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/375 | 2.76 | 2.73 | 2.71 | 2.68 | 2.66 | |
| 30 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/250 | 2.81 | 2.78 | 2.76 | 2.73 | 2.71 | |
| 30 x 12 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 2.19 | 2.17 | 2.15 | 2.13 | 2.11 | |
| 30 x 13 x 13" | ECT-32 Single Wall Corrugated | 20/240 | 3.92 | 3.89 | 3.85 | 3.82 | 3.78 | |
| 30 x 14 x 7" | ECT-32 Single Wall Corrugated | 10/120 | 2.01 | 1.99 | 1.98 | 1.96 | 1.94 | |
| 30 x 14 x 10" | ECT-32 Single Wall Corrugated | 10/120 | 2.32 | 2.30 | 2.28 | 2.26 | 2.24 | |
| 30 x 15 x 15" | ECT-32 Single Wall Corrugated | 15/120 | 3.04 | 3.01 | 2.98 | 2.96 | 2.93 | |
| 30 x 15 x 15" | ECT-48 Double Wall Corrugated | 10/90 | 8.11 | 8.04 | 7.97 | 7.90 | 7.82 | |
| 30 x 17 x 16" | ECT-32 Single Wall Corrugated | 15/150 | 3.30 | 3.27 | 3.24 | 3.21 | 3.18 | |
| 30 x 17 x 16" | 14,12,10" | 15/150 | 3.69 | 3.66 | 3.63 | 3.60 | 3.56 | |
| 30 x 17 x 17" | ECT-51 Double Wall Corrugated | 5/75 | 6.26 | 6.21 | 6.15 | 6.09 | 6.04 | |
| 30 x 18 x 16" | ECT-32 Corrugated | 15/150 | 5.92 | 5.86 | 5.81 | 5.76 | 5.70 | |
| 30 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/120 | 3.83 | 3.80 | 3.76 | 3.73 | 3.69 | |
| 30 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 10.26 | 10.16 | 10.07 | 9.98 | 9.89 | |
| 30 x 20 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 2.77 | 2.75 | 2.72 | 2.70 | 2.67 | |
| 30 x 20 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 4.41 | 4.37 | 4.33 | 4.29 | 4.25 | |
| 30 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 3.34 | 3.31 | 3.28 | 3.25 | 3.23 | |
| 30 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.68 | 3.65 | 3.62 | 3.58 | 3.55 | |
| 30 x 20 x 18" | ECT-32 Single Wall Corrugated | 15/150 | 6.52 | 6.46 | 6.40 | 6.34 | 6.28 | |
| 30 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 4.42 | 4.38 | 4.34 | 4.30 | 4.26 | |
| 30 x 20 x 20" | ECT-44 - 18,16,14,12" | 10/120 | 5.99 | 5.93 | 5.88 | 5.83 | 5.77 | |
| 30 x 20 x 20" | ECT-48 Double Wall Corrugated | 10/70 | 8.07 | 8.00 | 7.93 | 7.85 | 7.78 | |
| 30 x 24 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.08 | 5.03 | 4.99 | 4.94 | 4.90 | |
| 30 x 24 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 4.65 | 4.61 | 4.57 | 4.53 | 4.48 | |
| 30 x 24 x 12" | 10,8,6,4" | 15/120 | 5.80 | 5.75 | 5.70 | 5.64 | 5.59 | |
| 30 x 24 x 12" | ECT-48 Double Wall Corrugated | 10/70 | 7.44 | 7.38 | 7.31 | 7.24 | 7.18 | |
| 30 x 24 x 20" | ECT-32 Single Wall Corrugated | 15/150 | 7.12 | 7.06 | 6.99 | 6.93 | 6.86 | |
| 30 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 9.20 | 9.12 | 9.04 | 8.95 | 8.87 | |
| 30 x 26 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 8.56 | 8.49 | 8.41 | 8.34 | 8.26 | |
| 30 x 30 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 5.90 | 5.85 | 5.80 | 5.74 | 5.69 | |
| 30 x 30 x 8" | ECT-32 Single Wall Corrugated | 10/120 | 5.23 | 5.18 | 5.14 | 5.09 | 5.04 | |
| 30 x 30 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.86 | 5.81 | 5.75 | 5.70 | 5.65 | |
| 30 x 30 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 7.00 | 6.94 | 6.88 | 6.81 | 6.75 | |
| 30 x 30 x 12" | ECT-48 Double Wall Corrugated | 5/75 | 12.31 | 12.20 | 12.09 | 11.98 | 11.87 | |
| 30 x 30 x 16" | ECT-32 Single Wall Corrugated | 10/120 | 6.20 | 6.14 | 6.09 | 6.03 | 5.97 | |
| 30 x 30 x 16" | ECT-48 Double Wall Corrugated | 5/90 | 13.06 | 12.95 | 12.83 | 12.71 | 12.60 | |
| 30 x 30 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 11.54 | 11.44 | 11.33 | 11.23 | 11.13 | |
| 30 x 30 x 20" | ECT-48 Double Wall Corrugated | 5/90 | 14.72 | 14.59 | 14.46 | 14.33 | 14.20 | |
| 30 x 30 x 25" | ECT-32 Single Wall Corrugated | 5/120 | 7.43 | 7.37 | 7.30 | 7.23 | 7.17 | |
| 30 x 30 x 30" | ECT-32 Single Wall Corrugated | 5/120 | 8.88 | 8.80 | 8.72 | 8.64 | 8.56 | |
| 30 x 30 x 30" | ECT-48 Double Wall Corrugated | 5/75 | 14.64 | 14.51 | 14.38 | 14.25 | 14.12 | |
| 30 x 30 x 30" | ECT-90 Triple Wall Corrugated | 5/30 | 39.63 | 39.28 | 38.93 | 38.57 | 38.22 | |
| 30 1/2 x 6 1/2 x 24" | Outside Telescopic HSC | 10/150 | 4.55 | 4.51 | 4.47 | 4.43 | 4.38 | |
| 31 x 16 x 9" | ECT-32 Corrugated | 10/120 | 4.07 | 4.03 | 4.00 | 3.96 | 3.92 | |
| 32 x 6 x 6" | ECT-32 Corrugated | 25/375 | 1.24 | 1.23 | 1.22 | 1.20 | 1.19 | |
| 32 x 8 x 8" | ECT-32 Corrugated | 25/375 | 1.40 | 1.38 | 1.37 | 1.36 | 1.35 | |
| 32 x 10 x 6 1/2" | ECT-32 Corrugated | 20/240 | 2.43 | 2.41 | 2.39 | 2.37 | 2.35 | |
| 32 x 10 x 10" | ECT-32 Corrugated | 20/240 | 2.93 | 2.91 | 2.88 | 2.86 | 2.83 | |
| 32 x 12 x 10" | ECT-32 Corrugated | 20/240 | 2.16 | 2.14 | 2.12 | 2.10 | 2.08 | |
| 32 x 12 x 12" | ECT-32 Corrugated | 20/240 | 2.28 | 2.26 | 2.24 | 2.22 | 2.20 | |
| 32 x 16 x 16" | ECT-32 Corrugated | 15/150 | 5.40 | 5.35 | 5.30 | 5.26 | 5.21 | |
| 32 x 18 x 8" | ECT-32 Corrugated | 15/150 | 3.00 | 2.97 | 2.95 | 2.92 | 2.89 | |
| 32 x 18 x 12" | ECT-32 Corrugated | 15/150 | 3.40 | 3.37 | 3.34 | 3.30 | 3.27 | |
| 32 x 18 x 18" | ECT-32 Corrugated | 15/150 | 4.71 | 4.67 | 4.62 | 4.58 | 4.54 | |
| 32 x 24 x 24" | ECT-32 Corrugated | 15/150 | 8.11 | 8.04 | 7.97 | 7.90 | 7.82 | |
| 32 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 7.78 | 7.72 | 7.65 | 7.58 | 7.51 | |
| 32 x 24 x 24" | ECT-48 Double Wall Corrugated | 5/75 | 10.04 | 9.95 | 9.86 | 9.78 | 9.69 | |
| 32 x 32 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 11.00 | 10.90 | 10.80 | 10.70 | 10.60 | |
| 32 x 32 x 12" | ECT-32 Single Wall Corrugated | 10/150 | 8.97 | 8.89 | 8.81 | 8.73 | 8.65 | |
| 32 x 32 x 32" | ECT-32 Single Wall Corrugated | 5/120 | 9.59 | 9.50 | 9.42 | 9.33 | 9.25 | |
| 32 x 32 x 32" | ECT-48 Double Wall Corrugated | 5/90 | 17.39 | 17.23 | 17.08 | 16.92 | 16.77 | |
| 33 x 8 1/2 x 5" | ECT-32 Single Wall Corrugated | 25/375 | 1.89 | 1.87 | 1.85 | 1.84 | 1.82 | |
| 34 x 10 x 6" | ECT-32 Single Wall Corrugated | 10/300 | 1.67 | 1.66 | 1.64 | 1.63 | 1.61 | |
| 34 x 21 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 5.91 | 5.85 | 5.80 | 5.75 | 5.69 | |
| 34 x 34 x 34" | ECT-32 Single Wall Corrugated | 5/120 | 10.90 | 10.80 | 10.70 | 10.60 | 10.51 | |