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  • 275 lb. Test Heavy Duty Boxes

    Heavy Duty Cardboard Boxes

    • Our Heavy Duty Corrugated Boxes provide added protection while sending or storing your goods. Use heavy-duty boxes for additional stacking strength.
    • Single Wall Heavy Duty Boxes are made from single wide 275# ECT-44 corrugated carton.
    • Multi-Depth Heavy Duty Boxes have score lines at multiple depths designed to "fold to size" for a precise fit.
    • Double Wall Heavy Duty Boxes are made from 275# ECT-48 corrugated carton.
    • Find exactly what you are looking for with our easy to use filter below.
  • Heavy Duty Single Wall Boxes
  • Heavy Duty Multi-Depth Boxes
  • Heavy Duty Double Wall Boxes

Heavy Duty Boxes

Sku # Description Width Length Depth Qty/Bundle 1 4 10 11+
6 x 6 x 6 Single Wall BX-060606HD
6 x 6 x 6 Single Wall

6 x 6 x 6 Single Wall

275#/ECT-44 Corrugated

6" 6" 6" 25 $15.95
$15.40 $14.90 Quote
8 x 8 x 8 Single Wall BX-080808HD
8 x 8 x 8 Single Wall

8 x 8 x 8 Single Wall

275#/ECT-44 Corrugated

8" 8" 8" 25 $23.30
$22.55 $21.85 Quote
10 x 10 x 10 Single Wall BX-101010HD
10 x 10 x 10 Single Wall

10 x 10 x 10 Single Wall

275#/ECT-44 Corrugated

10" 10" 10" 25 $30.20
$29.25 $28.35 Quote
11 1/4 x 8 3/4 x 12 Single Wall BX-110812HD
11 1/4 x 8 3/4 x 12 Single Wall

11 1/4 x 8 3/4 x 12 Single Wall

275#/ECT-44 Corrugated

8 3/4" 11 1/4" 12" 25 $31.65
$30.60 $29.70 Quote
12 x 6 x 6 Single Wall BX-120606HD
12 x 6 x 6 Single Wall

12 x 6 x 6 Single Wall

275#/ECT-44 Corrugated

12" 6" 6" 25 $21.00
$20.35 $19.75 Quote
12 x 12 x 6 HD (275#-C) BX-121206HD
12 x 12 x 6 HD (275#-C)

12 x 12 x 6 HD (275#-C)

12" 12" 6" 25 $33.00
$31.95 $30.95 Quote
12 x 12 x 12 Single Wall BX-121212HD
12 x 12 x 12 Single Wall

12 x 12 x 12 Single Wall

275#/ECT-44 Corrugated

12" 12" 12" 25 $40.80
$39.45 $38.25 Quote
14 x 14 x 14 Single Wall BX-141414HD
14 x 14 x 14 Single Wall

14 x 14 x 14 Single Wall

275#/ECT-44 Corrugated

14" 14" 14" 25 $47.10
$45.60 $44.20 Quote
16 x 16 x 16 Single Wall BX-161616HD
16 x 16 x 16 Single Wall

16 x 16 x 16 Single Wall

275#/ECT-44 Corrugated

16" 16" 16" 25 $61.15
$59.20 $57.35 Quote
17 1/4 x 11 1/4 x 10 Single Wall BX-171110HD
17 1/4 x 11 1/4 x 10 Single Wall

17 1/4 x 11 1/4 x 10 Single Wall

275#/ECT-44 Corrugated

11" 17" 10" 25 $40.80
$39.50 $38.25 Quote
17 1/4 x 11 1/4 x 12 Single Wall BX-171112HD
17 1/4 x 11 1/4 x 12 Single Wall

17 1/4 x 11 1/4 x 12 Single Wall

275#/ECT-44 Corrugated

11" 17" 12" 25 $42.20
$40.85 $39.55 Quote
18 x 12 x 12 Single Wall BX-181212HD
18 x 12 x 12 Single Wall

18 x 12 x 12 Single Wall

275#/ECT-44 Corrugated

12" 18" 12" 25 $46.75
$45.25 $43.80 Quote
18 x 18 x 18 Single Wall BX-181818HD
18 x 18 x 18 Single Wall

18 x 18 x 18 Single Wall

275#/ECT-44 Corrugated

18" 18" 18" 20 $61.55
$59.60 $57.70 Quote
20 x 20 x 12 Single Wall BX-202012HD
20 x 20 x 12 Single Wall

20 x 20 x 12 Single Wall

275#/ECT-44 Corrugated

20" 20" 12" 10 $32.75
$31.65 $30.70 Quote
24 x 12 x 12 Single Wall BX-241212HD
24 x 12 x 12 Single Wall

24 x 12 x 12 Single Wall

275#/ECT-44 Corrugated

12" 24" 12" 25 $53.75
$52.00 $50.40 Quote
24 x 24 x 12 Single Wall BX-242412HD
24 x 24 x 12 Single Wall

24 x 24 x 12 Single Wall

275#/ECT-44 Corrugated

24" 24" 12" 10 $43.90
$42.50 $41.20 Quote
16 Items

Heavy Duty Boxes

Sku # Description Width Length Depth Qty/Bundle 1 5 10 11+
16 x 12 x 12 Single Wall BX-161212HD
16 x 12 x 12 Single Wall

16 x 12 x 12 Single Wall

275#/ECT-44 Corrugated

12" 16" 12" 25 $47.80
$46.40 $46.00 Quote
18 x 18 x 12 Single Wall BX-181812HD
18 x 18 x 12 Single Wall

18 x 18 x 12 Single Wall

275#/ECT-44 Corrugated

18" 18" 12" 20 $56.75
$55.10 $54.50 Quote
20 x 16 x 14 Single Wall BX-201614HD
20 x 16 x 14 Single Wall

20 x 16 x 14 Single Wall

275#/ECT-44 Corrugated

16" 20" 14" 20 $57.35
$55.75 $55.10 Quote
20 x 20 x 20 Single Wall BX-202020HD
20 x 20 x 20 Single Wall

20 x 20 x 20 Single Wall

275#/ECT-44 Corrugated

20" 20" 20" 20 $81.15
$78.80 $78.00 Quote
22 x 22 x 22 Single Wall BX-222222HD
22 x 22 x 22 Single Wall

22 x 22 x 22 Single Wall

275#/ECT-44 Corrugated

22" 22" 22" 15 $75.10
$72.90 $72.15 Quote
24 x 18 x 12 Single Wall BX-241812HD
24 x 18 x 12 Single Wall

24 x 18 x 12 Single Wall

275#/ECT-44 Corrugated

18" 24" 12" 20 $65.35
$63.50 $62.85 Quote
24 x 24 x 24 Single Wall BX-242424HD
24 x 24 x 24 Single Wall

24 x 24 x 24 Single Wall

275#/ECT-44 Corrugated

24" 24" 24" 15 $82.10
$79.70 $78.90 Quote
7 Items

Heavy Duty Double Walled

Sku # Description Width Length Depth Qty/Bundle 1 4 10 11+
8 x 8 x 8 Double Wall BX-080808HDDW
8 x 8 x 8 Double Wall

8 x 8 x 8 Double Wall

275#/ECT-48 Corrugated

8" 8" 8" 15 $15.05
$14.50 $14.10 Quote
9 x 9 x 6 1/2 Double Wall BX-090906KEG
9 x 9 x 6 1/2 Double Wall

9 x 9 x 6 1/2 Double Wall

275#/ECT-48 Corrugated

9" 9" 6 1/2" 25 $30.25
$29.95 $29.65 Quote
9 x 9 x 13 Double Wall BX-090913KEG
9 x 9 x 13 Double Wall

9 x 9 x 13 Double Wall

275#/ECT-48 Corrugated

9" 9" 13" 25 $37.65
$37.25 $36.90 Quote
11 1/2x11 1/2x15 3/8 Double Wall BX-111115KEG
11 1/2x11 1/2x15 3/8 Double Wall

11 1/2x11 1/2x15 3/8 Double Wall

275#/ECT-48 Corrugated

11 1/2" 11 1/2" 15 3/8" 25 $43.85
$42.40 $41.10 Quote
12 x 12 x 12 Double Wall BX-121212HDDW
12 x 12 x 12 Double Wall

12 x 12 x 12 Double Wall

275#/ECT-48 Corrugated

12" 12" 12" 15 $26.35
$25.50 $24.75 Quote
14 x 14 x 14 Double Wall BX-141414HDDW
14 x 14 x 14 Double Wall

14 x 14 x 14 Double Wall

275#/ECT-48 Corrugated

14" 14" 14" 15 $32.50
$31.45 $30.50 Quote
16 x 12 x 12 Double Wall BX-161212HDDW
16 x 12 x 12 Double Wall

16 x 12 x 12 Double Wall

275#/ECT-48 Corrugated

12" 16" 12" 15 $29.70
$28.70 $27.80 Quote
16 x 16 x 16 Double Wall BX-161616HDDW
16 x 16 x 16 Double Wall

16 x 16 x 16 Double Wall

275#/ECT-48 Corrugated

16" 16" 16" 15 $42.65
$41.25 $39.95 Quote
18 x 12 x 8 Double Wall BX-181208HDDW
18 x 12 x 8 Double Wall

18 x 12 x 8 Double Wall

275#/ECT-48 Corrugated

12" 18" 8" 15 $27.15
$26.30 $25.45 Quote
18 x 12 x 12 Double Wall BX-181212HDDW
18 x 12 x 12 Double Wall

18 x 12 x 12 Double Wall

275#/ECT-48 Corrugated

12" 18" 12" 15 $31.40
$30.35 $29.40 Quote
18 x 18 x 12 Double Wall BX-181812HDDW
18 x 18 x 12 Double Wall

18 x 18 x 12 Double Wall

275#/ECT-48 Corrugated

18" 18" 12" 10 $37.25
$36.90 $36.55 Quote
24 x 12 x 12 Double Wall BX-241212HDDW
24 x 12 x 12 Double Wall

24 x 12 x 12 Double Wall

275#/ECT-48 Corrugated

12" 24" 12" 15 $36.30
$35.15 $34.05 Quote
36 x 36 x 24 Double Wall BX-363624HDDW
36 x 36 x 24 Double Wall
Ships via LTL

36 x 36 x 24 Double Wall

275#/ECT-48 Corrugated

36" 36" 24" 5 $65.90
$63.75 $61.80 Quote
36 x 36 x 36 Double Wall BX-363636HDDW
36 x 36 x 36 Double Wall
Ships via LTL

36 x 36 x 36 Double Wall

275#/ECT-48 Corrugated

36" 36" 36" 5 $78.00
$75.45 $73.10 Quote
48 x 40 x 36 Double Wall BX-484036HDDW
48 x 40 x 36 Double Wall
Ships via LTL

48 x 40 x 36 Double Wall

275#/ECT-48 Corrugated

40" 48" 36" 5 $99.45
$96.25 $93.25 Quote
15 Items

Heavy Duty Double Walled

Sku # Description Width Length Depth Qty/Bundle 1 5 10 11+
18 x 18 x 18 Double Wall BX-181818HDDW
18 x 18 x 18 Double Wall

18 x 18 x 18 Double Wall

275#/ECT-48 Corrugated

18" 18" 18" 15 $51.70
$50.20 $49.65 Quote
20 x 20 x 20 Double Wall BX-202020HDDW
20 x 20 x 20 Double Wall

20 x 20 x 20 Double Wall

275#/ECT-48 Corrugated

20" 20" 20" 15 $62.30
$60.50 $59.85 Quote
22 x 22 x 22 Double Wall BX-222222HDDW
22 x 22 x 22 Double Wall

22 x 22 x 22 Double Wall

275#/ECT-48 Corrugated

22" 22" 22" 15 $74.00
$71.80 $71.10 Quote
24 x 20 x 12 Double Wall BX-242012HDDW
24 x 20 x 12 Double Wall

24 x 20 x 12 Double Wall

275#/ECT-48 Corrugated

20" 24" 12" 15 $55.55
$53.95 $53.35 Quote
24 x 24 x 12 Double Wall BX-242412HDDW
24 x 24 x 12 Double Wall

24 x 24 x 12 Double Wall

275#/ECT-48 Corrugated

24" 24" 12" 15 $66.70
$64.75 $64.05 Quote
24 x 24 x 24 Double Wall BX-242424HDDW
24 x 24 x 24 Double Wall
Ships via LTL

24 x 24 x 24 Double Wall

275#/ECT-48 Corrugated

24" 24" 24" 15 $86.80
$84.30 $83.35 Quote
26 x 26 x 26 Double Wall BX-262626HDDW
26 x 26 x 26 Double Wall

26 x 26 x 26 Double Wall

275#/ECT-48 Corrugated

26" 26" 26" 15 $112.90
$109.50 $108.40 Quote
30 x 20 x 20 Double Wall BX-302020HDDW
30 x 20 x 20 Double Wall

30 x 20 x 20 Double Wall

275#/ECT-48 Corrugated

20" 30" 20" 15 $85.30
$82.75 $81.90 Quote
8 Items

Heavy Duty Multi-depth

Sku # Description Width Length Depth Qty/Bundle 1 5 10 11+
20 x 20 x 20 Multidepth Single Wall BX-202020MDHD
20 x 20 x 20 Multidepth Single Wall

20 x 20 x 20 Multidepth Single Wall

Multi-Depth @ 18", 16" & 14"

275#/ECT-44 Corrugated

20" 20" 20" 20 $63.90
$62.00 $61.40 Quote
24 x 24 x 24 Multidepth Single Wall BX-242424MDHD
24 x 24 x 24 Multidepth Single Wall

24 x 24 x 24 Multidepth Single Wall

Multi-Depth@22",20",18",16",14"&12"

275#/ECT-44 Corrugated

24" 24" 24" 15 $82.10
$79.70 $78.90 Quote
26 x 20 x 20 Multidepth Single Wall BX-262020MDHD
26 x 20 x 20 Multidepth Single Wall

26 x 20 x 20 Multidepth Single Wall

Multi-Depth @ 18", 16", 14" & 12"

275#/ECT-44 Corrugated

20" 26" 20" 20 $90.00
$87.30 $86.35 Quote
26 x 26 x 26 Multidepth Single Wall BX-262626MDHD
26 x 26 x 26 Multidepth Single Wall

26 x 26 x 26 Multidepth Single Wall

Multi-Depth@20",18",16",14",12",10"

275#/ECT-44 Corrugated

26" 26" 26" 15 $95.25
$92.50 $91.60 Quote
30 x 20 x 20 Multidepth Single Wall BX-302020MDHD
30 x 20 x 20 Multidepth Single Wall

30 x 20 x 20 Multidepth Single Wall

Multi-Depth @ 20",18",16",14" & 12"

275#/ECT-44 Corrugated

20" 30" 20" 15 $74.55
$72.40 $71.70 Quote
30 x 24 x 24 Multidepth Single Wall BX-302424MDHD
30 x 24 x 24 Multidepth Single Wall

30 x 24 x 24 Multidepth Single Wall

Multi-Depth @ 22",20",18",16" & 14"

275#/ECT-44 Corrugated

24" 30" 24" 15 $96.95
$94.05 $93.10 Quote
32 x 24 x 24 Multidepth Single Wall BX-322424MDHD
32 x 24 x 24 Multidepth Single Wall

32 x 24 x 24 Multidepth Single Wall

Multi-Depth @ 22",20",18",16" & 14"

275#/ECT-44 Corrugated

24" 32" 24" 15 $98.05
$95.10 $94.15 Quote
7 Items