| 27 x 14 x 9" | ECT-32 Single Wall Corrugated | 20/240 | $2.88 | $2.77 | $2.66 | $2.56 | $2.45 | |
| 27 x 27 x 27" | ECT-32 Single Wall Corrugated | 5/120 | 8.36 | 8.05 | 7.74 | 7.43 | 7.12 | |
| 28 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/625 | 1.75 | 1.69 | 1.62 | 1.56 | 1.49 | |
| 28 x 5 x 24" | FOL | 10/120 | 3.10 | 2.98 | 2.87 | 2.75 | 2.64 | |
| 28 x 5 x 38" | FOL | 20/120 | 6.17 | 5.94 | 5.71 | 5.48 | 5.25 | |
| 28 x 6 x 6" | ECT-32 Single Wall Corrugated | 20/240 | 1.04 | 1.01 | .97 | .93 | .89 | |
| 28 x 6 x 20" | ECT-44 Single Wall Corrugated | 5/120 | 7.83 | 7.54 | 7.25 | 6.96 | 6.67 | |
| 28 x 6 x 52" | FOL | 5/120 | 11.58 | 11.15 | 10.72 | 10.29 | 9.86 | |
| 28 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.51 | 1.45 | 1.40 | 1.34 | 1.28 | |
| 28 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/300 | 2.32 | 2.23 | 2.15 | 2.06 | 1.98 | |
| 28 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/300 | 1.88 | 1.81 | 1.74 | 1.67 | 1.60 | |
| 28 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/300 | 3.34 | 3.22 | 3.10 | 2.97 | 2.85 | |
| 28 x 12 x 12" | ECT-32 Single Wall Corrugated | 20/240 | 3.25 | 3.13 | 3.01 | 2.89 | 2.77 | |
| 28 x 14 x 14" | ECT-32 Single Wall Corrugated | 20/120 | 3.09 | 2.97 | 2.86 | 2.74 | 2.63 | |
| 28 x 16 x 5" | ECT-32 Single Wall Corrugated | 25/300 | 4.11 | 3.96 | 3.80 | 3.65 | 3.50 | |
| 28 x 16 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 2.55 | 2.46 | 2.36 | 2.27 | 2.17 | |
| 28 x 16 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 2.90 | 2.79 | 2.68 | 2.58 | 2.47 | |
| 28 x 16 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 3.32 | 3.20 | 3.08 | 2.95 | 2.83 | |
| 28 x 16 x 14" | ECT-32 Single Wall Corrugated | 15/120 | 3.77 | 3.63 | 3.49 | 3.35 | 3.21 | |
| 28 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.63 | 2.53 | 2.44 | 2.34 | 2.24 | |
| 28 x 18 x 6" | ECT-32 Single Wall Corrugated | 20/140 | 5.20 | 5.01 | 4.82 | 4.62 | 4.43 | |
| 28 x 18 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 4.26 | 4.10 | 3.94 | 3.78 | 3.63 | |
| 28 x 18 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 4.55 | 4.38 | 4.21 | 4.04 | 3.87 | |
| 28 x 18 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 3.57 | 3.44 | 3.31 | 3.18 | 3.04 | |
| 28 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/150 | 3.91 | 3.76 | 3.62 | 3.47 | 3.33 | |
| 28 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 12.35 | 11.90 | 11.44 | 10.98 | 10.52 | |
| 28 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.77 | 5.56 | 5.35 | 5.13 | 4.92 | |
| 28 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.03 | 3.88 | 3.74 | 3.59 | 3.44 | |
| 28 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 4.91 | 4.72 | 4.54 | 4.36 | 4.18 | |
| 28 x 20 x 24" | 22,20,18,16,14" | 10/120 | 8.86 | 8.54 | 8.21 | 7.88 | 7.55 | |
| 28 x 20 x 25" | ECT-32 Single Wall Corrugated | 10/120 | 6.06 | 5.84 | 5.61 | 5.39 | 5.16 | |
| 28 x 24 x 6" | ECT-32 Single Wall Corrugated | 10/240 | 4.03 | 3.88 | 3.73 | 3.58 | 3.43 | |
| 28 x 24 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 10.88 | 10.48 | 10.08 | 9.67 | 9.27 | |
| 28 x 28 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 5.56 | 5.35 | 5.15 | 4.94 | 4.73 | |
| 28 x 28 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 8.90 | 8.57 | 8.24 | 7.91 | 7.58 | |
| 28 x 28 x 10" | ECT-32 Single Wall Corrugated | 10/150 | 10.37 | 9.98 | 9.60 | 9.22 | 8.83 | |
| 28 x 28 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 6.24 | 6.01 | 5.77 | 5.54 | 5.31 | |
| 28 x 28 x 12" | ECT-48 Double Wall Corrugated | 10/90 | 19.70 | 18.97 | 18.24 | 17.51 | 16.78 | |
| 28 x 28 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 7.96 | 7.66 | 7.37 | 7.07 | 6.78 | |
| 28 x 28 x 22" | ECT-32 Single Wall Corrugated | 10/150 | 11.92 | 11.48 | 11.04 | 10.60 | 10.16 | |
| 28 x 28 x 28" | ECT-32 Single Wall Corrugated | 5/120 | 7.74 | 7.45 | 7.17 | 6.88 | 6.59 | |
| 28 x 28 x 28" | ECT-48 Double Wall Corrugated | 5/90 | 20.45 | 19.70 | 18.94 | 18.18 | 17.42 | |
| 29 x 17 x 3" | ECT-32 Single Wall Corrugated | 25/300 | 4.26 | 4.10 | 3.94 | 3.78 | 3.63 | |
| 29 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 2.82 | 2.72 | 2.61 | 2.51 | 2.40 | |
| 29 x 17 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 4.95 | 4.77 | 4.58 | 4.40 | 4.22 | |
| 29 x 17 x 9" | ECT-32 Single Wall Corrugated | 15/150 | 3.20 | 3.08 | 2.97 | 2.85 | 2.73 | |
| 29 x 17 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 3.79 | 3.65 | 3.51 | 3.37 | 3.23 | |
| 29 x 17 x 15" | ECT-32 Single Wall Corrugated | 15/150 | 4.07 | 3.92 | 3.77 | 3.62 | 3.46 | |
| 29 x 17 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 4.99 | 4.80 | 4.62 | 4.43 | 4.25 | |
| 29 x 24 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 12.86 | 12.39 | 11.91 | 11.43 | 10.96 | |
| 30 x 5 x 24" | FOL | 10/120 | 3.30 | 3.18 | 3.06 | 2.93 | 2.81 | |
| 30 x 5 x 30" | FOL | 10/120 | 3.89 | 3.74 | 3.60 | 3.45 | 3.31 | |
| 30 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/375 | 1.38 | 1.33 | 1.28 | 1.23 | 1.18 | |
| 30 x 6 x 24" | ECT-44 Corrugated | 10/140 | 8.77 | 8.44 | 8.12 | 7.79 | 7.47 | |
| 30 x 6 x 24" | Inside Telescopic HSC | 10/150 | 5.22 | 5.03 | 4.84 | 4.64 | 4.45 | |
| 30 x 6 x 30" | ECT-44 Corrugated | 10/120 | 9.84 | 9.47 | 9.11 | 8.74 | 8.38 | |
| 30 x 6 x 40" | ECT-44 Corrugated | 10/140 | 12.18 | 11.73 | 11.28 | 10.82 | 10.37 | |
| 30 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.71 | 1.65 | 1.58 | 1.52 | 1.46 | |
| 30 x 10 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 1.96 | 1.88 | 1.81 | 1.74 | 1.67 | |
| 30 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/375 | 3.32 | 3.20 | 3.08 | 2.95 | 2.83 | |
| 30 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/250 | 3.38 | 3.26 | 3.13 | 3.01 | 2.88 | |
| 30 x 12 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 2.45 | 2.36 | 2.27 | 2.18 | 2.09 | |
| 30 x 13 x 13" | ECT-32 Single Wall Corrugated | 20/240 | 4.73 | 4.55 | 4.38 | 4.20 | 4.03 | |
| 30 x 14 x 7" | ECT-32 Single Wall Corrugated | 10/120 | 2.43 | 2.34 | 2.25 | 2.16 | 2.07 | |
| 30 x 14 x 10" | ECT-32 Single Wall Corrugated | 10/120 | 2.37 | 2.28 | 2.19 | 2.10 | 2.02 | |
| 30 x 15 x 15" | ECT-32 Single Wall Corrugated | 15/120 | 3.04 | 2.92 | 2.81 | 2.70 | 2.59 | |
| 30 x 15 x 15" | ECT-48 Double Wall Corrugated | 10/90 | 9.78 | 9.42 | 9.05 | 8.69 | 8.33 | |
| 30 x 17 x 16" | ECT-32 Single Wall Corrugated | 15/150 | 3.97 | 3.83 | 3.68 | 3.53 | 3.38 | |
| 30 x 17 x 16" | 14,12,10" | 15/150 | 4.45 | 4.29 | 4.12 | 3.96 | 3.79 | |
| 30 x 17 x 17" | ECT-51 Double Wall Corrugated | 5/75 | 7.55 | 7.27 | 6.99 | 6.71 | 6.43 | |
| 30 x 18 x 16" | ECT-32 Corrugated | 15/150 | 7.13 | 6.87 | 6.60 | 6.34 | 6.07 | |
| 30 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/120 | 4.62 | 4.45 | 4.28 | 4.11 | 3.93 | |
| 30 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 12.88 | 12.40 | 11.92 | 11.45 | 10.97 | |
| 30 x 20 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 3.83 | 3.69 | 3.54 | 3.40 | 3.26 | |
| 30 x 20 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 5.31 | 5.12 | 4.92 | 4.72 | 4.53 | |
| 30 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 3.42 | 3.29 | 3.17 | 3.04 | 2.91 | |
| 30 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.15 | 4.00 | 3.84 | 3.69 | 3.54 | |
| 30 x 20 x 18" | ECT-32 Single Wall Corrugated | 15/150 | 7.86 | 7.57 | 7.27 | 6.98 | 6.69 | |
| 30 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 5.32 | 5.13 | 4.93 | 4.73 | 4.53 | |
| 30 x 20 x 20" | ECT-44 - 18,16,14,12" | 10/120 | 7.22 | 6.95 | 6.68 | 6.41 | 6.15 | |
| 30 x 20 x 20" | ECT-48 Double Wall Corrugated | 10/70 | 8.58 | 8.26 | 7.95 | 7.63 | 7.31 | |
| 30 x 24 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 6.19 | 5.96 | 5.73 | 5.50 | 5.27 | |
| 30 x 24 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 4.16 | 4.00 | 3.85 | 3.70 | 3.54 | |
| 30 x 24 x 12" | 10,8,6,4" | 15/120 | 6.99 | 6.73 | 6.47 | 6.21 | 5.95 | |
| 30 x 24 x 12" | ECT-48 Double Wall Corrugated | 10/70 | 7.83 | 7.54 | 7.25 | 6.96 | 6.67 | |
| 30 x 24 x 20" | ECT-32 Single Wall Corrugated | 15/150 | 8.58 | 8.26 | 7.94 | 7.63 | 7.31 | |
| 30 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 10.59 | 10.20 | 9.81 | 9.41 | 9.02 | |
| 30 x 26 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 13.73 | 13.22 | 12.71 | 12.20 | 11.69 | |
| 30 x 30 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 7.12 | 6.85 | 6.59 | 6.32 | 6.06 | |
| 30 x 30 x 8" | ECT-32 Single Wall Corrugated | 10/120 | 6.30 | 6.07 | 5.84 | 5.60 | 5.37 | |
| 30 x 30 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 6.15 | 5.92 | 5.70 | 5.47 | 5.24 | |
| 30 x 30 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 6.45 | 6.22 | 5.98 | 5.74 | 5.50 | |
| 30 x 30 x 12" | ECT-48 Double Wall Corrugated | 5/75 | 14.84 | 14.29 | 13.74 | 13.19 | 12.64 | |
| 30 x 30 x 16" | ECT-32 Single Wall Corrugated | 10/120 | 7.47 | 7.19 | 6.91 | 6.64 | 6.36 | |
| 30 x 30 x 16" | ECT-48 Double Wall Corrugated | 5/90 | 15.75 | 15.16 | 14.58 | 14.00 | 13.41 | |
| 30 x 30 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 13.91 | 13.39 | 12.88 | 12.36 | 11.85 | |
| 30 x 30 x 20" | ECT-48 Double Wall Corrugated | 5/90 | 17.75 | 17.09 | 16.43 | 15.78 | 15.12 | |
| 30 x 30 x 25" | ECT-32 Single Wall Corrugated | 5/120 | 8.96 | 8.63 | 8.30 | 7.96 | 7.63 | |
| 30 x 30 x 30" | ECT-32 Single Wall Corrugated | 5/120 | 11.15 | 10.74 | 10.33 | 9.91 | 9.50 | |
| 30 x 30 x 30" | ECT-48 Double Wall Corrugated | 5/75 | 17.65 | 16.99 | 16.34 | 15.68 | 15.03 | |
| 30 x 30 x 30" | ECT-90 Triple Wall Corrugated | 5/30 | 47.77 | 46.00 | 44.24 | 42.47 | 40.70 | |
| 30 1/2 x 6 1/2 x 24" | Outside Telescopic HSC | 10/150 | 5.48 | 5.28 | 5.07 | 4.87 | 4.67 | |
| 31 x 16 x 9" | ECT-32 Corrugated | 10/120 | 4.91 | 4.72 | 4.54 | 4.36 | 4.18 | |
| 32 x 6 x 6" | ECT-32 Corrugated | 25/375 | 1.39 | 1.34 | 1.29 | 1.23 | 1.18 | |
| 32 x 8 x 8" | ECT-32 Corrugated | 25/375 | 1.67 | 1.61 | 1.55 | 1.48 | 1.42 | |
| 32 x 10 x 6 1/2" | ECT-32 Corrugated | 20/240 | 3.43 | 3.31 | 3.18 | 3.05 | 2.93 | |
| 32 x 10 x 10" | ECT-32 Corrugated | 20/240 | 3.68 | 3.55 | 3.41 | 3.28 | 3.14 | |
| 32 x 12 x 10" | ECT-32 Corrugated | 20/240 | 2.60 | 2.50 | 2.41 | 2.31 | 2.21 | |
| 32 x 12 x 12" | ECT-32 Corrugated | 20/240 | 3.23 | 3.11 | 2.99 | 2.87 | 2.75 | |
| 32 x 16 x 16" | ECT-32 Corrugated | 15/150 | 6.92 | 6.67 | 6.41 | 6.15 | 5.90 | |
| 32 x 18 x 8" | ECT-32 Corrugated | 15/150 | 3.03 | 2.91 | 2.80 | 2.69 | 2.58 | |
| 32 x 18 x 12" | ECT-32 Corrugated | 15/150 | 4.54 | 4.37 | 4.20 | 4.03 | 3.87 | |
| 32 x 18 x 18" | ECT-32 Corrugated | 15/150 | 5.67 | 5.46 | 5.25 | 5.04 | 4.83 | |
| 32 x 24 x 24" | ECT-32 Corrugated | 15/150 | 9.78 | 9.42 | 9.05 | 8.69 | 8.33 | |
| 32 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 8.83 | 8.50 | 8.18 | 7.85 | 7.52 | |
| 32 x 24 x 24" | ECT-48 Double Wall Corrugated | 5/75 | 12.11 | 11.66 | 11.21 | 10.76 | 10.31 | |
| 32 x 32 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 15.47 | 14.90 | 14.32 | 13.75 | 13.18 | |
| 32 x 32 x 12" | ECT-32 Single Wall Corrugated | 10/150 | 11.75 | 11.31 | 10.88 | 10.44 | 10.01 | |
| 32 x 32 x 32" | ECT-32 Single Wall Corrugated | 5/120 | 11.01 | 10.60 | 10.19 | 9.78 | 9.38 | |
| 32 x 32 x 32" | ECT-48 Double Wall Corrugated | 5/90 | 20.96 | 20.18 | 19.40 | 18.63 | 17.85 | |
| 33 x 8 1/2 x 5" | ECT-32 Single Wall Corrugated | 25/375 | 2.27 | 2.19 | 2.10 | 2.02 | 1.94 | |
| 34 x 10 x 6" | ECT-32 Single Wall Corrugated | 10/300 | 1.64 | 1.58 | 1.52 | 1.46 | 1.40 | |
| 34 x 21 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 7.12 | 6.86 | 6.59 | 6.33 | 6.06 | |
| 34 x 34 x 34" | ECT-32 Single Wall Corrugated | 5/120 | 13.13 | 12.65 | 12.16 | 11.67 | 11.19 | |