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Heavy-Duty Boxes - single wall, double wall, triple wall and more!

  • Our Heavy-duty boxes provide greater protection and stacking strength.
  • Manufactured from heavy-duty corrugated kraft
  • Cartons are sold in bundle quantities and ship flat to save on storage space and shipping.
  • Sold and shipped flat in bundle quantities.
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10 x 10 x 10" Double Wall Boxes| Prism Pak 10 x 10 x 10" Double Wall Boxes
1 BUNDLE $34.81
Sale Price: $29.53
10 x 10 x 10" Heavy-Duty Boxes| Prism Pak 10 x 10 x 10" Heavy-Duty Boxes
1 BUNDLE $47.12
Sale Price: $39.98
10 x 8 x 6" Heavy-Duty Boxes| Prism Pak 10 x 8 x 6" Heavy-Duty Boxes
1 BUNDLE $46.54
Sale Price: $39.48
11 1/2 x 11 1/2 x 15 3/8" Double Wall Boxes| Prism Pak 11 1/2 x 11 1/2 x 15 3/8" Double Wall Boxes
1 BUNDLE $82.83
Sale Price: $70.27
11 1/4 x 8 3/4 x 10" Heavy-Duty Boxes| Prism Pak 11 1/4 x 8 3/4 x 10" Heavy-Duty Boxes
1 BUNDLE $69.35
Sale Price: $58.84
11 1/4 x 8 3/4 x 12" Heavy-Duty Boxes| Prism Pak 11 1/4 x 8 3/4 x 12" Heavy-Duty Boxes
1 BUNDLE $49.09
Sale Price: $41.65
11 1/4 x 8 3/4 x 6" Double Wall Boxes| Prism Pak 11 1/4 x 8 3/4 x 6" Double Wall Boxes
1 BUNDLE $39.53
Sale Price: $33.54
11 1/4 x 8 3/4 x 6" Heavy-Duty Boxes| Prism Pak 11 1/4 x 8 3/4 x 6" Heavy-Duty Boxes
1 BUNDLE $39.72
Sale Price: $33.70
12 1/2 x 12 1/2 x 15" Double Wall Boxes| Prism Pak 12 1/2 x 12 1/2 x 15" Double Wall Boxes
1 BUNDLE $58.42
Sale Price: $49.56
12 x 10 x 10" Double Wall Boxes| Prism Pak 12 x 10 x 10" Double Wall Boxes
1 BUNDLE $57.66
Sale Price: $48.91
12 x 10 x 4" Heavy-Duty Boxes| Prism Pak 12 x 10 x 4" Heavy-Duty Boxes
1 BUNDLE $57.43
Sale Price: $48.72
12 x 10 x 6" Heavy-Duty Boxes| Prism Pak 12 x 10 x 6" Heavy-Duty Boxes
1 BUNDLE $44.46
Sale Price: $37.72
12 x 10 x 8" Heavy-Duty Boxes| Prism Pak 12 x 10 x 8" Heavy-Duty Boxes
1 BUNDLE $48.63
Sale Price: $41.25
12 x 12 x 10" Double Wall Boxes| Prism Pak 12 x 12 x 10" Double Wall Boxes
1 BUNDLE $45.30
Sale Price: $38.43
12 x 12 x 10" Heavy Duty Boxes| Prism Pak 12 x 12 x 10" Heavy Duty Boxes
1 BUNDLE $94.39
Sale Price: $80.08
12 x 12 x 12" 500#/ECT-71 Heavy-Duty Double Wall Boxes| Prism Pak 12 x 12 x 12" 500#/ECT-71 Heavy-Duty Double Wall Boxes
1 BUNDLE $147.56
Sale Price: $125.18
12 x 12 x 12" Double Wall Boxes| Prism Pak 12 x 12 x 12" Double Wall Boxes
1 BUNDLE $49.26
Sale Price: $41.79
12 x 12 x 12" Heavy-Duty Boxes| Prism Pak 12 x 12 x 12" Heavy-Duty Boxes
1 BUNDLE $71.10
Sale Price: $60.31
12 x 12 x 16" Double Wall Boxes| Prism Pak 12 x 12 x 16" Double Wall Boxes
1 BUNDLE $67.53
Sale Price: $57.29
12 x 12 x 18" Double Wall Boxes| Prism Pak 12 x 12 x 18" Double Wall Boxes
1 BUNDLE $92.06
Sale Price: $78.10
12 x 12 x 6" Double Wall Boxes| Prism Pak 12 x 12 x 6" Double Wall Boxes
1 BUNDLE $37.66
Sale Price: $31.95
12 x 12 x 6" Heavy-Duty Boxes| Prism Pak 12 x 12 x 6" Heavy-Duty Boxes
1 BUNDLE $53.72
Sale Price: $45.58
12 x 12 x 8" Double Wall Boxes| Prism Pak 12 x 12 x 8" Double Wall Boxes
1 BUNDLE $42.86
Sale Price: $36.36
12 x 12 x 8" Heavy-Duty Boxes| Prism Pak 12 x 12 x 8" Heavy-Duty Boxes
1 BUNDLE $88.23
Sale Price: $74.85
12 x 6 x 6" Heavy-Duty Boxes| Prism Pak 12 x 6 x 6" Heavy-Duty Boxes
1 BUNDLE $30.80
Sale Price: $26.13
12 x 9 x 6" Double Wall Boxes| Prism Pak 12 x 9 x 6" Double Wall Boxes
1 BUNDLE $42.03
Sale Price: $35.66
13 x 13 x 13" Double Wall Boxes| Prism Pak 13 x 13 x 13" Double Wall Boxes
1 BUNDLE $57.74
Sale Price: $48.98
13 x 13 x 13" Heavy-Duty Boxes| Prism Pak 13 x 13 x 13" Heavy-Duty Boxes
1 BUNDLE $119.72
Sale Price: $101.57
14 x 10 x 10" Double Wall Boxes| Prism Pak 14 x 10 x 10" Double Wall Boxes
1 BUNDLE $63.21
Sale Price: $53.63
14 x 10 x 10" Heavy-Duty Boxes| Prism Pak 14 x 10 x 10" Heavy-Duty Boxes
1 BUNDLE $88.69
Sale Price: $75.24
14 x 12 x 10" Heavy-Duty Boxes| Prism Pak 14 x 12 x 10" Heavy-Duty Boxes
1 BUNDLE $70.98
Sale Price: $60.21
14 x 14 x 10" Double Wall Boxes| Prism Pak 14 x 14 x 10" Double Wall Boxes
1 BUNDLE $57.04
Sale Price: $48.39
14 x 14 x 10" Heavy-Duty Boxes| Prism Pak 14 x 14 x 10" Heavy-Duty Boxes
1 BUNDLE $122.27
Sale Price: $103.73
14 x 14 x 14" Double Wall Boxes| Prism Pak 14 x 14 x 14" Double Wall Boxes
1 BUNDLE $66.21
Sale Price: $56.17
14 x 14 x 14" Heavy-Duty Boxes| Prism Pak 14 x 14 x 14" Heavy-Duty Boxes
1 BUNDLE $94.02
Sale Price: $79.76
14 x 14 x 6" Double Wall Boxes| Prism Pak 14 x 14 x 6" Double Wall Boxes
1 BUNDLE $72.05
Sale Price: $61.12
14 x 14 x 8" Double Wall Boxes| Prism Pak 14 x 14 x 8" Double Wall Boxes
1 BUNDLE $78.99
Sale Price: $67.01
15 x 12 x 10" Heavy-Duty Boxes| Prism Pak 15 x 12 x 10" Heavy-Duty Boxes
1 BUNDLE $108.95
Sale Price: $92.43
15 x 15 x 15" Double Wall Boxes| Prism Pak 15 x 15 x 15" Double Wall Boxes
1 BUNDLE $76.07
Sale Price: $64.54
16 x 12 x 10" Double Wall Boxes| Prism Pak 16 x 12 x 10" Double Wall Boxes
1 BUNDLE $79.41
Sale Price: $67.37
16 x 12 x 12" Double Wall Boxes| Prism Pak 16 x 12 x 12" Double Wall Boxes
1 BUNDLE $57.31
Sale Price: $48.62
16 x 12 x 12" Heavy-Duty Boxes| Prism Pak 16 x 12 x 12" Heavy-Duty Boxes
1 BUNDLE $49.74
Sale Price: $42.19
16 x 12 x 8" Heavy-Duty Boxes| Prism Pak 16 x 12 x 8" Heavy-Duty Boxes
1 BUNDLE $69.47
Sale Price: $58.94
16 x 16 x 10" Double Wall Boxes| Prism Pak 16 x 16 x 10" Double Wall Boxes
1 BUNDLE $105.45
Sale Price: $89.46
16 x 16 x 12" Double Wall Boxes| Prism Pak 16 x 16 x 12" Double Wall Boxes
1 BUNDLE $50.49
Sale Price: $42.83
16 x 16 x 16" 500#/ECT-71 Heavy-Duty Double Wall Boxes| Prism Pak 16 x 16 x 16" 500#/ECT-71 Heavy-Duty Double Wall Boxes
1 BUNDLE $251.57
Sale Price: $213.42
16 x 16 x 16" Double Wall Boxes| Prism Pak 16 x 16 x 16" Double Wall Boxes
1 BUNDLE $85.65
Sale Price: $72.67
16 x 16 x 16" Heavy-Duty Boxes| Prism Pak 16 x 16 x 16" Heavy-Duty Boxes
1 BUNDLE $117.30
Sale Price: $99.51
16 x 16 x 8" Double Wall Boxes| Prism Pak 16 x 16 x 8" Double Wall Boxes
1 BUNDLE $65.23
Sale Price: $55.34
17 1/4 x 11 1/4 x 10" Heavy-Duty Boxes| Prism Pak 17 1/4 x 11 1/4 x 10" Heavy-Duty Boxes
1 BUNDLE $77.93
Sale Price: $66.11
17 1/4 x 11 1/4 x 12" Heavy-Duty Boxes| Prism Pak 17 1/4 x 11 1/4 x 12" Heavy-Duty Boxes
1 BUNDLE $82.49
Sale Price: $69.98
17 1/4 x 11 1/4 x 8" Heavy-Duty Boxes| Prism Pak 17 1/4 x 11 1/4 x 8" Heavy-Duty Boxes
1 BUNDLE $64.15
Sale Price: $54.42
17 x 17 x 17" Double Wall Boxes| Prism Pak 17 x 17 x 17" Double Wall Boxes
1 BUNDLE $97.61
Sale Price: $82.81
18 x 12 x 10" Double Wall Boxes| Prism Pak 18 x 12 x 10" Double Wall Boxes
1 BUNDLE $56.69
Sale Price: $48.10
18 x 12 x 12" Double Wall Boxes| Prism Pak 18 x 12 x 12" Double Wall Boxes
1 BUNDLE $61.21
Sale Price: $51.93
18 x 12 x 12" Heavy-Duty Boxes| Prism Pak 18 x 12 x 12" Heavy-Duty Boxes
1 BUNDLE $88.69
Sale Price: $75.24
18 x 12 x 6" Double Wall Boxes| Prism Pak 18 x 12 x 6" Double Wall Boxes
1 BUNDLE $55.02
Sale Price: $46.67
18 x 12 x 8" Double Wall Boxes| Prism Pak 18 x 12 x 8" Double Wall Boxes
1 BUNDLE $51.41
Sale Price: $43.62
18 x 14 x 10" Double Wall Boxes| Prism Pak 18 x 14 x 10" Double Wall Boxes
1 BUNDLE $76.98
Sale Price: $65.31
18 x 14 x 12" Double Wall Boxes| Prism Pak 18 x 14 x 12" Double Wall Boxes
1 BUNDLE $70.38
Sale Price: $59.71
18 x 14 x 14" Double Wall Boxes| Prism Pak 18 x 14 x 14" Double Wall Boxes
1 BUNDLE $75.58
Sale Price: $64.12
18 x 18 x 12" Double Wall Boxes| Prism Pak 18 x 18 x 12" Double Wall Boxes
1 BUNDLE $60.44
Sale Price: $51.28
18 x 18 x 12" Heavy-Duty Boxes| Prism Pak 18 x 18 x 12" Heavy-Duty Boxes
1 BUNDLE $127.14
Sale Price: $107.86
18 x 18 x 16" Double Wall Boxes| Prism Pak 18 x 18 x 16" Double Wall Boxes
1 BUNDLE $80.15
Sale Price: $68.00
18 x 18 x 18" Double Wall Boxes| Prism Pak 18 x 18 x 18" Double Wall Boxes
1 BUNDLE $71.72
Sale Price: $60.84
18 x 18 x 18" Heavy-Duty Boxes| Prism Pak 18 x 18 x 18" Heavy-Duty Boxes
1 BUNDLE $118.10
Sale Price: $100.19
18 x 18 x 18" Triple Wall Boxes| Prism Pak 18 x 18 x 18" Triple Wall Boxes
1 BUNDLE $202.05
Sale Price: $171.41
18 x 18 x 24" Double Wall Boxes| Prism Pak 18 x 18 x 24" Double Wall Boxes
1 BUNDLE $83.86
Sale Price: $71.14
18 x 18 x 6" Double Wall Boxes| Prism Pak 18 x 18 x 6" Double Wall Boxes
1 BUNDLE $85.80
Sale Price: $72.79
18 x 18 x 8" Double Wall Boxes| Prism Pak 18 x 18 x 8" Double Wall Boxes
1 BUNDLE $78.86
Sale Price: $66.90
20 x 12 x 12" Double Wall Boxes| Prism Pak 20 x 12 x 12" Double Wall Boxes
1 BUNDLE $65.51
Sale Price: $55.58
20 x 14 x 12" Double Wall Boxes| Prism Pak 20 x 14 x 12" Double Wall Boxes
1 BUNDLE $113.37
Sale Price: $96.18
20 x 14 x 14" Double Wall Boxes| Prism Pak 20 x 14 x 14" Double Wall Boxes
1 BUNDLE $94.62
Sale Price: $80.27
20 x 16 x 14" Double Wall Boxes| Prism Pak 20 x 16 x 14" Double Wall Boxes
1 BUNDLE $91.01
Sale Price: $77.21
20 x 16 x 14" Heavy-Duty Boxes| Prism Pak 20 x 16 x 14" Heavy-Duty Boxes
1 BUNDLE $74.34
Sale Price: $63.07
20 x 16 x 16" Double Wall Boxes| Prism Pak 20 x 16 x 16" Double Wall Boxes
1 BUNDLE $64.59
Sale Price: $54.79
20 x 20 x 10" Double Wall Boxes| Prism Pak 20 x 20 x 10" Double Wall Boxes
1 BUNDLE $78.58
Sale Price: $66.66
20 x 20 x 12" Double Wall Boxes| Prism Pak 20 x 20 x 12" Double Wall Boxes
1 BUNDLE $71.13
Sale Price: $60.35
20 x 20 x 12" Heavy-Duty Boxes| Prism Pak 20 x 20 x 12" Heavy-Duty Boxes
1 BUNDLE $63.73
Sale Price: $54.07
20 x 20 x 16" Double Wall Boxes| Prism Pak 20 x 20 x 16" Double Wall Boxes
1 BUNDLE $79.41
Sale Price: $67.37
20 x 20 x 20" 500#/ECT-71 Heavy-Duty Double Wall Boxes| Prism Pak 20 x 20 x 20" 500#/ECT-71 Heavy-Duty Double Wall Boxes
1 BUNDLE $245.27
Sale Price: $208.07
20 x 20 x 20" Double Wall Boxes| Prism Pak 20 x 20 x 20" Double Wall Boxes
1 BUNDLE $88.02
Sale Price: $74.67
20 x 20 x 20" Heavy-Duty Boxes| Prism Pak 20 x 20 x 20" Heavy-Duty Boxes
1 BUNDLE $72.60
Sale Price: $61.59
22 x 14 x 12" Double Wall Boxes| Prism Pak 22 x 14 x 12" Double Wall Boxes
1 BUNDLE $93.10
Sale Price: $78.98
22 x 18 x 16" Double Wall Boxes| Prism Pak 22 x 18 x 16" Double Wall Boxes
1 BUNDLE $86.47
Sale Price: $73.36
22 x 22 x 22" Double Wall Boxes| Prism Pak 22 x 22 x 22" Double Wall Boxes
1 BUNDLE $104.77
Sale Price: $88.88
22 x 22 x 22" Heavy-Duty Boxes| Prism Pak 22 x 22 x 22" Heavy-Duty Boxes
1 BUNDLE $87.56
Sale Price: $74.28
24 x 12 x 12" Double Wall Boxes| Prism Pak 24 x 12 x 12" Double Wall Boxes
1 BUNDLE $72.94
Sale Price: $61.88
24 x 12 x 12" Heavy-Duty Boxes| Prism Pak 24 x 12 x 12" Heavy-Duty Boxes
1 BUNDLE $99.58
Sale Price: $84.48
24 x 16 x 16" Double Wall Boxes| Prism Pak 24 x 16 x 16" Double Wall Boxes
1 BUNDLE $71.44
Sale Price: $60.60
24 x 18 x 12" Double Wall Boxes| Prism Pak 24 x 18 x 12" Double Wall Boxes
1 BUNDLE $70.36
Sale Price: $59.69
24 x 18 x 12" Heavy-Duty Boxes| Prism Pak 24 x 18 x 12" Heavy-Duty Boxes
1 BUNDLE $86.42
Sale Price: $73.31
24 x 18 x 18" Double Wall Boxes| Prism Pak 24 x 18 x 18" Double Wall Boxes
1 BUNDLE $84.02
Sale Price: $71.28
24 x 18 x 18" Heavy-Duty Boxes| Prism Pak 24 x 18 x 18" Heavy-Duty Boxes
1 BUNDLE $73.13
Sale Price: $62.04
24 x 20 x 12" Double Wall Boxes| Prism Pak 24 x 20 x 12" Double Wall Boxes
1 BUNDLE $77.95
Sale Price: $66.13
24 x 20 x 20" Double Wall Boxes| Prism Pak 24 x 20 x 20" Double Wall Boxes
1 BUNDLE $97.38
Sale Price: $82.61
24 x 24 x 12" Double Wall Boxes| Prism Pak 24 x 24 x 12" Double Wall Boxes
1 BUNDLE $93.69
Sale Price: $79.48
24 x 24 x 12" Heavy-Duty Boxes| Prism Pak 24 x 24 x 12" Heavy-Duty Boxes
1 BUNDLE $83.07
Sale Price: $70.47
24 x 24 x 18" Double Wall Boxes| Prism Pak 24 x 24 x 18" Double Wall Boxes
1 BUNDLE $108.95
Sale Price: $92.43
24 x 24 x 24" Heavy-Duty Boxes| Prism Pak 24 x 24 x 24" Heavy-Duty Boxes
1 BUNDLE $114.38
Sale Price: $97.03
24 x 24 x 24" Triple Wall Boxes| Prism Pak 24 x 24 x 24" Triple Wall Boxes
1 BUNDLE $297.70
Sale Price: $252.55
26 x 20 x 20" Double Wall Boxes| Prism Pak 26 x 20 x 20" Double Wall Boxes
1 BUNDLE $101.67
Sale Price: $86.25
30 x 20 x 20" Double Wall Boxes| Prism Pak 30 x 20 x 20" Double Wall Boxes
1 BUNDLE $109.68
Sale Price: $93.05
30 x 24 x 12" Double Wall Boxes| Prism Pak 30 x 24 x 12" Double Wall Boxes
1 BUNDLE $107.22
Sale Price: $90.96
36 x 12 x 12" Double Wall Boxes| Prism Pak 36 x 12 x 12" Double Wall Boxes
1 BUNDLE $64.61
Sale Price: $54.82
36 x 24 x 12" Double Wall Boxes| Prism Pak 36 x 24 x 12" Double Wall Boxes
1 BUNDLE $63.39
Sale Price: $53.77
6 x 6 x 6" Double Wall Boxes| Prism Pak 6 x 6 x 6" Double Wall Boxes
1 BUNDLE $21.12
Sale Price: $17.92
6 x 6 x 6" Heavy-Duty Boxes| Prism Pak 6 x 6 x 6" Heavy-Duty Boxes
1 BUNDLE $21.05
Sale Price: $17.86
8 x 8 x 8" Double Wall Boxes| Prism Pak 8 x 8 x 8" Double Wall Boxes
1 BUNDLE $23.55
Sale Price: $19.98
8 x 8 x 8" Heavy-Duty Boxes| Prism Pak 8 x 8 x 8" Heavy-Duty Boxes
1 BUNDLE $34.93
Sale Price: $29.63
9 x 9 x 13" Double Wall Boxes| Prism Pak 9 x 9 x 13" Double Wall Boxes
1 BUNDLE $57.57
Sale Price: $48.84
9 x 9 x 6 1/2" Double Wall Boxes| Prism Pak 9 x 9 x 6 1/2" Double Wall Boxes
1 BUNDLE $41.22
Sale Price: $34.97
9 x 9 x 9" Heavy-Duty Boxes| Prism Pak 9 x 9 x 9" Heavy-Duty Boxes
1 BUNDLE $59.86
Sale Price: $50.78