| 27 x 14 x 9" | ECT-32 Single Wall Corrugated | 20/240 | $2.35 | $2.31 | $2.27 | $2.24 | $2.20 | |
| 27 x 27 x 27" | ECT-32 Single Wall Corrugated | 5/120 | 7.61 | 7.49 | 7.37 | 7.24 | 7.12 | |
| 28 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/625 | 1.53 | 1.51 | 1.48 | 1.46 | 1.43 | |
| 28 x 5 x 24" | FOL | 10/120 | 4.03 | 3.97 | 3.90 | 3.83 | 3.77 | |
| 28 x 5 x 38" | FOL | 20/120 | 5.67 | 5.57 | 5.48 | 5.39 | 5.30 | |
| 28 x 6 x 6" | ECT-32 Single Wall Corrugated | 20/240 | 1.21 | 1.19 | 1.17 | 1.15 | 1.13 | |
| 28 x 6 x 20" | ECT-44 Single Wall Corrugated | 5/120 | 7.13 | 7.02 | 6.90 | 6.78 | 6.67 | |
| 28 x 6 x 52" | FOL | 5/120 | 10.55 | 10.38 | 10.21 | 10.03 | 9.86 | |
| 28 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.40 | 1.37 | 1.35 | 1.33 | 1.31 | |
| 28 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/300 | 2.01 | 1.98 | 1.94 | 1.91 | 1.88 | |
| 28 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/300 | 1.73 | 1.70 | 1.68 | 1.65 | 1.62 | |
| 28 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/300 | 3.07 | 3.02 | 2.97 | 2.92 | 2.87 | |
| 28 x 12 x 12" | ECT-32 Single Wall Corrugated | 20/240 | 2.31 | 2.28 | 2.24 | 2.20 | 2.16 | |
| 28 x 14 x 14" | ECT-32 Single Wall Corrugated | 20/120 | 2.93 | 2.89 | 2.84 | 2.79 | 2.74 | |
| 28 x 16 x 5" | ECT-32 Single Wall Corrugated | 25/300 | 3.74 | 3.68 | 3.62 | 3.56 | 3.50 | |
| 28 x 16 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 2.58 | 2.54 | 2.50 | 2.45 | 2.41 | |
| 28 x 16 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 2.81 | 2.76 | 2.72 | 2.67 | 2.62 | |
| 28 x 16 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 3.03 | 2.98 | 2.93 | 2.88 | 2.83 | |
| 28 x 16 x 14" | ECT-32 Single Wall Corrugated | 15/120 | 3.44 | 3.38 | 3.32 | 3.27 | 3.21 | |
| 28 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.40 | 2.36 | 2.32 | 2.28 | 2.24 | |
| 28 x 18 x 6" | ECT-32 Single Wall Corrugated | 20/140 | 4.74 | 4.66 | 4.59 | 4.51 | 4.43 | |
| 28 x 18 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 3.91 | 3.85 | 3.78 | 3.72 | 3.66 | |
| 28 x 18 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 4.18 | 4.11 | 4.04 | 3.97 | 3.91 | |
| 28 x 18 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 3.25 | 3.20 | 3.15 | 3.10 | 3.04 | |
| 28 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/150 | 3.83 | 3.77 | 3.70 | 3.64 | 3.58 | |
| 28 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 9.92 | 9.76 | 9.60 | 9.44 | 9.28 | |
| 28 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.26 | 5.18 | 5.09 | 5.00 | 4.92 | |
| 28 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.68 | 3.62 | 3.56 | 3.50 | 3.44 | |
| 28 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 4.25 | 4.18 | 4.11 | 4.05 | 3.98 | |
| 28 x 20 x 24" | 22,20,18,16,14" | 10/120 | 4.96 | 4.88 | 4.80 | 4.72 | 4.64 | |
| 28 x 20 x 25" | ECT-32 Single Wall Corrugated | 10/120 | 5.52 | 5.43 | 5.34 | 5.25 | 5.16 | |
| 28 x 24 x 6" | ECT-32 Single Wall Corrugated | 10/240 | 3.88 | 3.82 | 3.76 | 3.69 | 3.63 | |
| 28 x 24 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 9.92 | 9.75 | 9.59 | 9.43 | 9.27 | |
| 28 x 28 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 5.06 | 4.98 | 4.90 | 4.82 | 4.73 | |
| 28 x 28 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 9.97 | 9.81 | 9.64 | 9.48 | 9.32 | |
| 28 x 28 x 10" | ECT-32 Single Wall Corrugated | 10/150 | 9.45 | 9.29 | 9.14 | 8.99 | 8.83 | |
| 28 x 28 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 5.68 | 5.59 | 5.50 | 5.40 | 5.31 | |
| 28 x 28 x 12" | ECT-48 Double Wall Corrugated | 10/90 | 17.95 | 17.65 | 17.36 | 17.07 | 16.78 | |
| 28 x 28 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 6.23 | 6.13 | 6.03 | 5.93 | 5.82 | |
| 28 x 28 x 22" | ECT-32 Single Wall Corrugated | 10/150 | 10.86 | 10.68 | 10.51 | 10.33 | 10.16 | |
| 28 x 28 x 28" | ECT-32 Single Wall Corrugated | 5/120 | 7.07 | 6.96 | 6.84 | 6.73 | 6.61 | |
| 28 x 28 x 28" | ECT-48 Double Wall Corrugated | 5/90 | 18.63 | 18.33 | 18.03 | 17.73 | 17.42 | |
| 29 x 17 x 3" | ECT-32 Single Wall Corrugated | 25/300 | 3.88 | 3.82 | 3.75 | 3.69 | 3.63 | |
| 29 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.57 | 2.53 | 2.49 | 2.44 | 2.40 | |
| 29 x 17 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 4.51 | 4.44 | 4.36 | 4.29 | 4.22 | |
| 29 x 17 x 9" | ECT-32 Single Wall Corrugated | 15/150 | 2.92 | 2.87 | 2.82 | 2.78 | 2.73 | |
| 29 x 17 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.45 | 3.40 | 3.34 | 3.28 | 3.23 | |
| 29 x 17 x 15" | ECT-32 Single Wall Corrugated | 15/150 | 3.69 | 3.63 | 3.57 | 3.51 | 3.45 | |
| 29 x 17 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 4.54 | 4.47 | 4.40 | 4.32 | 4.25 | |
| 29 x 24 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 11.72 | 11.53 | 11.34 | 11.15 | 10.96 | |
| 30 x 5 x 24" | FOL | 10/120 | 2.99 | 2.94 | 2.89 | 2.84 | 2.79 | |
| 30 x 5 x 30" | FOL | 10/120 | 3.54 | 3.48 | 3.42 | 3.37 | 3.31 | |
| 30 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/375 | 1.26 | 1.24 | 1.22 | 1.20 | 1.18 | |
| 30 x 6 x 24" | ECT-44 Corrugated | 10/140 | 7.67 | 7.54 | 7.42 | 7.29 | 7.17 | |
| 30 x 6 x 24" | Inside Telescopic HSC | 10/150 | 4.76 | 4.68 | 4.60 | 4.53 | 4.45 | |
| 30 x 6 x 30" | ECT-44 Corrugated | 10/120 | 8.96 | 8.82 | 8.67 | 8.53 | 8.38 | |
| 30 x 6 x 40" | ECT-44 Corrugated | 10/140 | 11.07 | 10.89 | 10.71 | 10.53 | 10.35 | |
| 30 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.56 | 1.53 | 1.51 | 1.48 | 1.46 | |
| 30 x 10 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 1.84 | 1.81 | 1.78 | 1.75 | 1.72 | |
| 30 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/375 | 3.03 | 2.98 | 2.93 | 2.88 | 2.83 | |
| 30 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/250 | 3.08 | 3.03 | 2.98 | 2.93 | 2.88 | |
| 30 x 12 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 2.40 | 2.36 | 2.32 | 2.28 | 2.25 | |
| 30 x 13 x 13" | ECT-32 Single Wall Corrugated | 20/240 | 4.31 | 4.24 | 4.17 | 4.10 | 4.03 | |
| 30 x 14 x 7" | ECT-32 Single Wall Corrugated | 10/120 | 2.21 | 2.17 | 2.14 | 2.10 | 2.07 | |
| 30 x 14 x 10" | ECT-32 Single Wall Corrugated | 10/120 | 2.55 | 2.51 | 2.47 | 2.42 | 2.38 | |
| 30 x 15 x 15" | ECT-32 Single Wall Corrugated | 15/120 | 3.34 | 3.28 | 3.23 | 3.17 | 3.12 | |
| 30 x 15 x 15" | ECT-48 Double Wall Corrugated | 10/90 | 8.91 | 8.76 | 8.62 | 8.48 | 8.33 | |
| 30 x 17 x 16" | ECT-32 Single Wall Corrugated | 15/150 | 3.62 | 3.56 | 3.50 | 3.44 | 3.38 | |
| 30 x 17 x 16" | 14,12,10" | 15/150 | 4.06 | 3.99 | 3.92 | 3.86 | 3.79 | |
| 30 x 17 x 17" | ECT-51 Double Wall Corrugated | 5/75 | 6.24 | 6.14 | 6.04 | 5.94 | 5.84 | |
| 30 x 18 x 16" | ECT-32 Corrugated | 15/150 | 6.50 | 6.39 | 6.29 | 6.18 | 6.07 | |
| 30 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/120 | 3.70 | 3.64 | 3.58 | 3.52 | 3.46 | |
| 30 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 11.26 | 11.08 | 10.90 | 10.71 | 10.53 | |
| 30 x 20 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 3.04 | 3.00 | 2.95 | 2.90 | 2.85 | |
| 30 x 20 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 4.84 | 4.76 | 4.68 | 4.60 | 4.53 | |
| 30 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 3.67 | 3.61 | 3.55 | 3.49 | 3.43 | |
| 30 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.04 | 3.98 | 3.91 | 3.85 | 3.78 | |
| 30 x 20 x 18" | ECT-32 Single Wall Corrugated | 15/150 | 7.16 | 7.04 | 6.92 | 6.81 | 6.69 | |
| 30 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 4.70 | 4.62 | 4.55 | 4.47 | 4.39 | |
| 30 x 20 x 20" | ECT-44 - 18,16,14,12" | 10/120 | 6.57 | 6.47 | 6.36 | 6.25 | 6.15 | |
| 30 x 20 x 20" | ECT-48 Double Wall Corrugated | 10/70 | 8.86 | 8.72 | 8.57 | 8.43 | 8.29 | |
| 30 x 24 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.58 | 5.49 | 5.40 | 5.31 | 5.21 | |
| 30 x 24 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 5.11 | 5.02 | 4.94 | 4.86 | 4.78 | |
| 30 x 24 x 12" | 10,8,6,4" | 15/120 | 6.37 | 6.26 | 6.16 | 6.06 | 5.95 | |
| 30 x 24 x 12" | ECT-48 Double Wall Corrugated | 10/70 | 8.17 | 8.04 | 7.91 | 7.77 | 7.64 | |
| 30 x 24 x 20" | ECT-32 Single Wall Corrugated | 15/150 | 7.82 | 7.69 | 7.56 | 7.44 | 7.31 | |
| 30 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 10.10 | 9.94 | 9.78 | 9.61 | 9.45 | |
| 30 x 26 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 9.41 | 9.25 | 9.10 | 8.95 | 8.79 | |
| 30 x 30 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 5.31 | 5.22 | 5.13 | 5.05 | 4.96 | |
| 30 x 30 x 8" | ECT-32 Single Wall Corrugated | 10/120 | 5.53 | 5.44 | 5.35 | 5.26 | 5.17 | |
| 30 x 30 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.82 | 5.72 | 5.63 | 5.54 | 5.44 | |
| 30 x 30 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 7.69 | 7.56 | 7.44 | 7.31 | 7.19 | |
| 30 x 30 x 12" | ECT-48 Double Wall Corrugated | 5/75 | 13.52 | 13.30 | 13.08 | 12.86 | 12.64 | |
| 30 x 30 x 16" | ECT-32 Single Wall Corrugated | 10/120 | 6.80 | 6.69 | 6.58 | 6.47 | 6.36 | |
| 30 x 30 x 16" | ECT-48 Double Wall Corrugated | 5/90 | 14.35 | 14.11 | 13.88 | 13.65 | 13.41 | |
| 30 x 30 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 12.67 | 12.47 | 12.26 | 12.05 | 11.85 | |
| 30 x 30 x 20" | ECT-48 Double Wall Corrugated | 5/90 | 16.17 | 15.91 | 15.64 | 15.38 | 15.12 | |
| 30 x 30 x 25" | ECT-32 Single Wall Corrugated | 5/120 | 8.16 | 8.03 | 7.90 | 7.76 | 7.63 | |
| 30 x 30 x 30" | ECT-32 Single Wall Corrugated | 5/120 | 9.75 | 9.60 | 9.44 | 9.28 | 9.12 | |
| 30 x 30 x 30" | ECT-48 Double Wall Corrugated | 5/75 | 16.08 | 15.82 | 15.55 | 15.29 | 15.03 | |
| 30 x 30 x 30" | ECT-90 Triple Wall Corrugated | 5/30 | 43.53 | 42.82 | 42.11 | 41.40 | 40.70 | |
| 30 1/2 x 6 1/2 x 24" | Outside Telescopic HSC | 10/150 | 4.99 | 4.91 | 4.83 | 4.75 | 4.67 | |
| 31 x 16 x 9" | ECT-32 Corrugated | 10/120 | 4.47 | 4.40 | 4.32 | 4.25 | 4.18 | |
| 32 x 6 x 6" | ECT-32 Corrugated | 25/375 | 1.36 | 1.34 | 1.31 | 1.29 | 1.27 | |
| 32 x 8 x 8" | ECT-32 Corrugated | 25/375 | 1.53 | 1.51 | 1.48 | 1.46 | 1.43 | |
| 32 x 10 x 6 1/2" | ECT-32 Corrugated | 20/240 | 2.67 | 2.63 | 2.59 | 2.54 | 2.50 | |
| 32 x 10 x 10" | ECT-32 Corrugated | 20/240 | 3.22 | 3.17 | 3.12 | 3.07 | 3.01 | |
| 32 x 12 x 10" | ECT-32 Corrugated | 20/240 | 2.37 | 2.33 | 2.29 | 2.25 | 2.21 | |
| 32 x 12 x 12" | ECT-32 Corrugated | 20/240 | 2.50 | 2.46 | 2.42 | 2.38 | 2.34 | |
| 32 x 16 x 16" | ECT-32 Corrugated | 15/150 | 5.93 | 5.83 | 5.74 | 5.64 | 5.55 | |
| 32 x 18 x 8" | ECT-32 Corrugated | 15/150 | 3.29 | 3.24 | 3.19 | 3.13 | 3.08 | |
| 32 x 18 x 12" | ECT-32 Corrugated | 15/150 | 3.73 | 3.67 | 3.61 | 3.55 | 3.49 | |
| 32 x 18 x 18" | ECT-32 Corrugated | 15/150 | 5.17 | 5.09 | 5.00 | 4.92 | 4.83 | |
| 32 x 24 x 24" | ECT-32 Corrugated | 15/150 | 8.91 | 8.76 | 8.62 | 8.48 | 8.33 | |
| 32 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 8.55 | 8.41 | 8.27 | 8.13 | 7.99 | |
| 32 x 24 x 24" | ECT-48 Double Wall Corrugated | 5/75 | 10.54 | 10.37 | 10.20 | 10.03 | 9.86 | |
| 32 x 32 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 12.08 | 11.88 | 11.68 | 11.49 | 11.29 | |
| 32 x 32 x 12" | ECT-32 Single Wall Corrugated | 10/150 | 9.85 | 9.69 | 9.53 | 9.37 | 9.21 | |
| 32 x 32 x 32" | ECT-32 Single Wall Corrugated | 5/120 | 10.53 | 10.36 | 10.19 | 10.02 | 9.85 | |
| 32 x 32 x 32" | ECT-48 Double Wall Corrugated | 5/90 | 19.09 | 18.78 | 18.47 | 18.16 | 17.85 | |
| 33 x 8 1/2 x 5" | ECT-32 Single Wall Corrugated | 25/375 | 2.07 | 2.04 | 2.00 | 1.97 | 1.94 | |
| 34 x 10 x 6" | ECT-32 Single Wall Corrugated | 10/300 | 1.79 | 1.76 | 1.73 | 1.70 | 1.67 | |
| 34 x 21 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 6.49 | 6.38 | 6.27 | 6.17 | 6.06 | |
| 34 x 34 x 34" | ECT-32 Single Wall Corrugated | 5/120 | 11.97 | 11.77 | 11.58 | 11.38 | 11.19 | |