| 27 x 14 x 9" | ECT-32 Single Wall Corrugated | 20/240 | $2.48 | $2.39 | $2.31 | $2.22 | $2.12 | |
| 27 x 27 x 27" | ECT-32 Single Wall Corrugated | 5/120 | 9.29 | 8.94 | 8.64 | 8.29 | 7.94 | |
| 28 x 4 x 4" | ECT-32 Single Wall Corrugated | 25/625 | 1.87 | 1.80 | 1.74 | 1.67 | 1.60 | |
| 28 x 5 x 24" | FOL | 10/120 | 4.92 | 4.73 | 4.58 | 4.39 | 4.20 | |
| 28 x 5 x 38" | FOL | 20/120 | 6.91 | 6.65 | 6.43 | 6.17 | 5.91 | |
| 28 x 6 x 6" | ECT-32 Single Wall Corrugated | 20/240 | 1.05 | 1.01 | .98 | .94 | .90 | |
| 28 x 6 x 20" | ECT-44 Single Wall Corrugated | 5/120 | 7.91 | 7.61 | 7.36 | 7.06 | 6.77 | |
| 28 x 6 x 52" | FOL | 5/120 | 12.87 | 12.38 | 11.98 | 11.49 | 11.00 | |
| 28 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.54 | 1.48 | 1.43 | 1.37 | 1.32 | |
| 28 x 10 x 10" | ECT-32 Single Wall Corrugated | 25/300 | 2.58 | 2.48 | 2.40 | 2.30 | 2.20 | |
| 28 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/300 | 2.22 | 2.13 | 2.06 | 1.98 | 1.90 | |
| 28 x 12 x 8" | ECT-32 Single Wall Corrugated | 25/300 | 3.75 | 3.61 | 3.49 | 3.35 | 3.21 | |
| 28 x 12 x 12" | ECT-32 Single Wall Corrugated | 20/240 | 2.82 | 2.72 | 2.63 | 2.52 | 2.41 | |
| 28 x 14 x 14" | ECT-32 Single Wall Corrugated | 20/120 | 3.58 | 3.44 | 3.33 | 3.19 | 3.06 | |
| 28 x 16 x 5" | ECT-32 Single Wall Corrugated | 25/300 | 4.56 | 4.39 | 4.25 | 4.08 | 3.90 | |
| 28 x 16 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 3.15 | 3.03 | 2.93 | 2.81 | 2.69 | |
| 28 x 16 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 3.45 | 3.32 | 3.21 | 3.08 | 2.95 | |
| 28 x 16 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 3.69 | 3.55 | 3.44 | 3.30 | 3.16 | |
| 28 x 16 x 14" | ECT-32 Single Wall Corrugated | 15/120 | 4.19 | 4.03 | 3.90 | 3.74 | 3.58 | |
| 28 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 3.09 | 2.97 | 2.88 | 2.76 | 2.64 | |
| 28 x 18 x 6" | ECT-32 Single Wall Corrugated | 20/140 | 5.78 | 5.56 | 5.38 | 5.16 | 4.94 | |
| 28 x 18 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 4.77 | 4.59 | 4.44 | 4.26 | 4.08 | |
| 28 x 18 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 5.10 | 4.90 | 4.74 | 4.55 | 4.36 | |
| 28 x 18 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 3.97 | 3.82 | 3.69 | 3.55 | 3.40 | |
| 28 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/150 | 4.98 | 4.79 | 4.64 | 4.45 | 4.26 | |
| 28 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 12.10 | 11.65 | 11.27 | 10.81 | 10.35 | |
| 28 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 6.42 | 6.17 | 5.97 | 5.73 | 5.49 | |
| 28 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.48 | 4.31 | 4.17 | 4.00 | 3.83 | |
| 28 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 5.35 | 5.15 | 4.98 | 4.78 | 4.58 | |
| 28 x 20 x 24" | 22,20,18,16,14" | 10/120 | 10.04 | 9.66 | 9.35 | 8.97 | 8.59 | |
| 28 x 20 x 25" | ECT-32 Single Wall Corrugated | 10/120 | 6.73 | 6.48 | 6.27 | 6.01 | 5.76 | |
| 28 x 24 x 6" | ECT-32 Single Wall Corrugated | 10/240 | 4.74 | 4.56 | 4.41 | 4.23 | 4.05 | |
| 28 x 24 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 12.09 | 11.64 | 11.26 | 10.80 | 10.34 | |
| 28 x 28 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 5.41 | 5.21 | 5.04 | 4.83 | 4.63 | |
| 28 x 28 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 12.16 | 11.70 | 11.32 | 10.86 | 10.40 | |
| 28 x 28 x 10" | ECT-32 Single Wall Corrugated | 10/150 | 11.52 | 11.09 | 10.72 | 10.29 | 9.85 | |
| 28 x 28 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 5.63 | 5.42 | 5.24 | 5.03 | 4.81 | |
| 28 x 28 x 12" | ECT-48 Double Wall Corrugated | 10/90 | 21.89 | 21.06 | 20.37 | 19.55 | 18.72 | |
| 28 x 28 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 8.84 | 8.51 | 8.23 | 7.90 | 7.56 | |
| 28 x 28 x 22" | ECT-32 Single Wall Corrugated | 10/150 | 13.25 | 12.75 | 12.33 | 11.83 | 11.33 | |
| 28 x 28 x 28" | ECT-32 Single Wall Corrugated | 5/120 | 10.24 | 9.85 | 9.53 | 9.14 | 8.76 | |
| 28 x 28 x 28" | ECT-48 Double Wall Corrugated | 5/90 | 22.73 | 21.87 | 21.15 | 20.30 | 19.44 | |
| 29 x 17 x 3" | ECT-32 Single Wall Corrugated | 25/300 | 4.73 | 4.55 | 4.40 | 4.22 | 4.05 | |
| 29 x 17 x 5" | ECT-32 Single Wall Corrugated | 15/300 | 3.13 | 3.02 | 2.92 | 2.80 | 2.68 | |
| 29 x 17 x 7" | ECT-32 Single Wall Corrugated | 20/240 | 5.50 | 5.29 | 5.12 | 4.91 | 4.70 | |
| 29 x 17 x 9" | ECT-32 Single Wall Corrugated | 15/150 | 3.56 | 3.43 | 3.31 | 3.18 | 3.04 | |
| 29 x 17 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.23 | 4.07 | 3.94 | 3.78 | 3.62 | |
| 29 x 17 x 15" | ECT-32 Single Wall Corrugated | 15/150 | 4.52 | 4.35 | 4.21 | 4.04 | 3.87 | |
| 29 x 17 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 5.54 | 5.33 | 5.16 | 4.95 | 4.74 | |
| 29 x 24 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 14.29 | 13.75 | 13.30 | 12.76 | 12.22 | |
| 30 x 5 x 24" | FOL | 10/120 | 3.84 | 3.69 | 3.57 | 3.43 | 3.28 | |
| 30 x 5 x 30" | FOL | 10/120 | 4.32 | 4.15 | 4.02 | 3.86 | 3.69 | |
| 30 x 6 x 6" | ECT-32 Single Wall Corrugated | 25/375 | 1.57 | 1.51 | 1.47 | 1.41 | 1.35 | |
| 30 x 6 x 24" | ECT-44 Corrugated | 10/140 | 9.35 | 9.00 | 8.70 | 8.35 | 8.00 | |
| 30 x 6 x 24" | Inside Telescopic HSC | 10/150 | 5.88 | 5.66 | 5.47 | 5.25 | 5.03 | |
| 30 x 6 x 30" | ECT-44 Corrugated | 10/120 | 10.93 | 10.52 | 10.17 | 9.76 | 9.35 | |
| 30 x 6 x 40" | ECT-44 Corrugated | 10/140 | 13.50 | 12.99 | 12.57 | 12.06 | 11.55 | |
| 30 x 8 x 8" | ECT-32 Single Wall Corrugated | 25/375 | 1.90 | 1.83 | 1.77 | 1.70 | 1.63 | |
| 30 x 10 x 10" | ECT-32 Single Wall Corrugated | 20/240 | 1.98 | 1.90 | 1.84 | 1.77 | 1.69 | |
| 30 x 12 x 4" | ECT-32 Single Wall Corrugated | 25/375 | 3.69 | 3.55 | 3.44 | 3.30 | 3.16 | |
| 30 x 12 x 6" | ECT-32 Single Wall Corrugated | 25/250 | 3.76 | 3.62 | 3.50 | 3.36 | 3.22 | |
| 30 x 12 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 2.48 | 2.38 | 2.31 | 2.21 | 2.12 | |
| 30 x 13 x 13" | ECT-32 Single Wall Corrugated | 20/240 | 5.25 | 5.05 | 4.89 | 4.69 | 4.49 | |
| 30 x 14 x 7" | ECT-32 Single Wall Corrugated | 10/120 | 2.69 | 2.59 | 2.51 | 2.41 | 2.31 | |
| 30 x 14 x 10" | ECT-32 Single Wall Corrugated | 10/120 | 2.39 | 2.30 | 2.23 | 2.14 | 2.05 | |
| 30 x 15 x 15" | ECT-32 Single Wall Corrugated | 15/120 | 4.07 | 3.91 | 3.79 | 3.63 | 3.48 | |
| 30 x 15 x 15" | ECT-48 Double Wall Corrugated | 10/90 | 10.87 | 10.46 | 10.11 | 9.70 | 9.29 | |
| 30 x 17 x 16" | ECT-32 Single Wall Corrugated | 15/150 | 4.41 | 4.25 | 4.11 | 3.94 | 3.78 | |
| 30 x 17 x 16" | 14,12,10" | 15/150 | 4.95 | 4.76 | 4.60 | 4.42 | 4.23 | |
| 30 x 17 x 17" | ECT-51 Double Wall Corrugated | 5/75 | 7.02 | 6.75 | 6.53 | 6.27 | 6.00 | |
| 30 x 18 x 16" | ECT-32 Corrugated | 15/150 | 7.92 | 7.62 | 7.37 | 7.08 | 6.78 | |
| 30 x 18 x 18" | ECT-32 Single Wall Corrugated | 10/120 | 5.13 | 4.94 | 4.78 | 4.58 | 4.39 | |
| 30 x 18 x 18" | ECT-48 Double Wall Corrugated | 10/90 | 13.73 | 13.22 | 12.78 | 12.27 | 11.75 | |
| 30 x 20 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 3.42 | 3.29 | 3.18 | 3.05 | 2.92 | |
| 30 x 20 x 8" | ECT-32 Single Wall Corrugated | 15/150 | 5.90 | 5.68 | 5.50 | 5.27 | 5.05 | |
| 30 x 20 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 3.75 | 3.61 | 3.49 | 3.35 | 3.21 | |
| 30 x 20 x 12" | ECT-32 Single Wall Corrugated | 15/150 | 4.93 | 4.74 | 4.59 | 4.40 | 4.22 | |
| 30 x 20 x 18" | ECT-32 Single Wall Corrugated | 15/150 | 8.73 | 8.40 | 8.13 | 7.80 | 7.47 | |
| 30 x 20 x 20" | ECT-32 Single Wall Corrugated | 10/120 | 5.92 | 5.69 | 5.51 | 5.28 | 5.06 | |
| 30 x 20 x 20" | ECT-44 - 18,16,14,12" | 10/120 | 8.02 | 7.72 | 7.46 | 7.16 | 6.86 | |
| 30 x 20 x 20" | ECT-48 Double Wall Corrugated | 10/70 | 8.20 | 7.89 | 7.63 | 7.32 | 7.01 | |
| 30 x 24 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 6.95 | 6.68 | 6.47 | 6.20 | 5.94 | |
| 30 x 24 x 12" | ECT-32 Single Wall Corrugated | 15/120 | 6.23 | 5.99 | 5.80 | 5.56 | 5.33 | |
| 30 x 24 x 12" | 10,8,6,4" | 15/120 | 7.77 | 7.47 | 7.23 | 6.94 | 6.64 | |
| 30 x 24 x 12" | ECT-48 Double Wall Corrugated | 10/70 | 9.97 | 9.59 | 9.28 | 8.90 | 8.52 | |
| 30 x 24 x 20" | ECT-32 Single Wall Corrugated | 15/150 | 9.53 | 9.17 | 8.87 | 8.51 | 8.15 | |
| 30 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 11.77 | 11.32 | 10.95 | 10.51 | 10.06 | |
| 30 x 26 x 24" | ECT-32 Single Wall Corrugated | 10/150 | 11.47 | 11.04 | 10.68 | 10.24 | 9.81 | |
| 30 x 30 x 6" | ECT-32 Single Wall Corrugated | 15/150 | 7.91 | 7.61 | 7.36 | 7.06 | 6.76 | |
| 30 x 30 x 8" | ECT-32 Single Wall Corrugated | 10/120 | 7.08 | 6.81 | 6.59 | 6.32 | 6.05 | |
| 30 x 30 x 10" | ECT-32 Single Wall Corrugated | 15/150 | 8.08 | 7.78 | 7.52 | 7.22 | 6.91 | |
| 30 x 30 x 12" | ECT-32 Single Wall Corrugated | 10/120 | 9.38 | 9.02 | 8.73 | 8.37 | 8.02 | |
| 30 x 30 x 12" | ECT-48 Double Wall Corrugated | 5/75 | 16.48 | 15.86 | 15.34 | 14.72 | 14.10 | |
| 30 x 30 x 16" | ECT-32 Single Wall Corrugated | 10/120 | 8.30 | 7.98 | 7.72 | 7.41 | 7.10 | |
| 30 x 30 x 16" | ECT-48 Double Wall Corrugated | 5/90 | 17.50 | 16.84 | 16.29 | 15.63 | 14.97 | |
| 30 x 30 x 20" | ECT-32 Single Wall Corrugated | 10/150 | 15.45 | 14.87 | 14.39 | 13.80 | 13.22 | |
| 30 x 30 x 20" | ECT-48 Double Wall Corrugated | 5/90 | 19.72 | 18.98 | 18.36 | 17.61 | 16.87 | |
| 30 x 30 x 25" | ECT-32 Single Wall Corrugated | 5/120 | 9.95 | 9.58 | 9.27 | 8.89 | 8.51 | |
| 30 x 30 x 30" | ECT-32 Single Wall Corrugated | 5/120 | 11.90 | 11.45 | 11.07 | 10.62 | 10.17 | |
| 30 x 30 x 30" | ECT-48 Double Wall Corrugated | 5/75 | 18.07 | 17.39 | 16.82 | 16.14 | 15.45 | |
| 30 x 30 x 30" | ECT-90 Triple Wall Corrugated | 5/30 | 53.08 | 51.08 | 49.41 | 47.41 | 45.40 | |
| 30 1/2 x 6 1/2 x 24" | Outside Telescopic HSC | 10/150 | 6.15 | 5.92 | 5.72 | 5.49 | 5.26 | |
| 31 x 16 x 9" | ECT-32 Corrugated | 10/120 | 5.45 | 5.24 | 5.07 | 4.87 | 4.66 | |
| 32 x 6 x 6" | ECT-32 Corrugated | 25/375 | 1.66 | 1.59 | 1.54 | 1.48 | 1.42 | |
| 32 x 8 x 8" | ECT-32 Corrugated | 25/375 | 1.87 | 1.80 | 1.74 | 1.67 | 1.60 | |
| 32 x 10 x 6 1/2" | ECT-32 Corrugated | 20/240 | 3.26 | 3.14 | 3.04 | 2.91 | 2.79 | |
| 32 x 10 x 10" | ECT-32 Corrugated | 20/240 | 3.93 | 3.78 | 3.66 | 3.51 | 3.36 | |
| 32 x 12 x 10" | ECT-32 Corrugated | 20/240 | 2.89 | 2.78 | 2.69 | 2.58 | 2.47 | |
| 32 x 12 x 12" | ECT-32 Corrugated | 20/240 | 3.05 | 2.94 | 2.84 | 2.73 | 2.61 | |
| 32 x 16 x 16" | ECT-32 Corrugated | 15/150 | 7.23 | 6.96 | 6.73 | 6.46 | 6.19 | |
| 32 x 18 x 8" | ECT-32 Corrugated | 15/150 | 4.02 | 3.86 | 3.74 | 3.59 | 3.44 | |
| 32 x 18 x 12" | ECT-32 Corrugated | 15/150 | 3.93 | 3.78 | 3.66 | 3.51 | 3.36 | |
| 32 x 18 x 18" | ECT-32 Corrugated | 15/150 | 6.30 | 6.07 | 5.87 | 5.63 | 5.39 | |
| 32 x 24 x 24" | ECT-32 Corrugated | 15/150 | 10.87 | 10.46 | 10.11 | 9.70 | 9.29 | |
| 32 x 24 x 24" | ECT-44 - 22,20,18,16,14" | 10/120 | 10.97 | 10.56 | 10.22 | 9.80 | 9.39 | |
| 32 x 24 x 24" | ECT-48 Double Wall Corrugated | 5/75 | 13.45 | 12.94 | 12.52 | 12.01 | 11.51 | |
| 32 x 32 x 8" | ECT-32 Single Wall Corrugated | 10/150 | 14.73 | 14.17 | 13.71 | 13.15 | 12.60 | |
| 32 x 32 x 12" | ECT-32 Single Wall Corrugated | 10/150 | 12.02 | 11.56 | 11.19 | 10.73 | 10.28 | |
| 32 x 32 x 32" | ECT-32 Single Wall Corrugated | 5/120 | 12.84 | 12.36 | 11.96 | 11.47 | 10.99 | |
| 32 x 32 x 32" | ECT-48 Double Wall Corrugated | 5/90 | 23.29 | 22.41 | 21.67 | 20.80 | 19.92 | |
| 33 x 8 1/2 x 5" | ECT-32 Single Wall Corrugated | 25/375 | 2.53 | 2.43 | 2.35 | 2.26 | 2.16 | |
| 34 x 10 x 6" | ECT-32 Single Wall Corrugated | 10/300 | 2.24 | 2.16 | 2.09 | 2.00 | 1.92 | |
| 34 x 21 x 6" | ECT-32 Single Wall Corrugated | 10/120 | 7.91 | 7.61 | 7.36 | 7.06 | 6.77 | |
| 34 x 34 x 34" | ECT-32 Single Wall Corrugated | 5/120 | 14.59 | 14.04 | 13.58 | 13.03 | 12.48 | |