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Simple-Lock™ Crates

An engineered, nailless alternative to the common wooden shipping crate.

Made in the USA, our Simple-Lock™ nailless wooden shipping crates are lighter, stronger, and easier to fill and assemble than your standard cleated crate. This engineered design is prized in the global market for its durability and efficiency. Crates, pallets and skids can be heat treated to ISPM 15 standards.

Pricing You'll Love

Discover how much money you could save by switching to National Crate, including nearly 50% savings versus our largest competitor!
1234
41 x 28 3/4 x 25 1/2"
23 3/16 x 23 3/16 x 23 3/16"
Simple-Lock™ Crates
WITHOUT WOOD PALLET
Part #
Outside Dimensions
(L x W x H)
Inside Dimensions
(L x W x H)
Weight Capacity
Stacking Strength
Weight (lbs)
Quantity = 1
Their Price
Quantity = 5
Their Price
Quantity = 10+
Their Price
SL1023
12 x 12 x 12"
11 1/3 x 11 1/3 x 11 1/2"
250 lbs
12,000 lbs
8
$34
$62
$32
$57
$30
$53
SL3841
18 x 18 x 18"
17 1/3 x 17 1/3 x 17 1/2"
275 lbs
12,000 lbs
15
$46
$83
$41
$74
$39
$70
SL9275
24 x 20 x 20"
23 3/16 x 19 3/16 x 19 1/2"
300 lbs
12,000 lbs
20
$48
$86
$44
$79
$42
$75
SL5608
24 x 24 x 24"
23 3/16 x 23 3/16 x 23 3/16"
400 lbs
10,000 lbs
24
$67
$121
$58
$105
$56
$101
SL7419
32 x 24 x 24"
31 1/4 x 23 1/4 x 23 1/2"
500 lbs
10,000 lbs
30
$77
$139
$71
$129
$65
$118
SL2184
48 x 30 x 30"
47 1/4 x 29 1/4 x 29 1/2"
2250 lbs
10,000 lbs
51
$102
$184
$95
$171
$88
$160
SL6590
48 x 40 x 30"
47 3/16 x 39 3/16 x 29 1/2"
3000 lbs
10,000 lbs
61
$120
$209
$110
$192
$106
$182
1234
41 x 28 3/4 x 25 1/2"
23 3/16 x 23 3/16 x 23 3/16"
Simple-Lock™ Crates
WITH WOOD PALLET
Part #
Outside Dimensions
(L x W x H)
Inside Dimensions
(L x W x H)
Weight Capacity
Stacking Strength
Weight (lbs)
Quantity = 1
Their Price
Quantity = 5
Their Price
Quantity = 10+
Their Price
SL8852
24 x 24 x 28 3/4"
23 3/16 x 23 3/16 x 23 3/16"
400 lbs
10,000 lbs
32
$76
$126
$70
$116
$68
$110
SL3047
24 x 20 x 25"
23 1/3 x 19 1/3 x 19 1/2"
300 lbs
12,000 lbs
29
$86
$115
$57
$102
$54
$98
SL4736
30 x 30 x 30"
29 1/3 x 29 1/3 x 24 1/2"
2000 lbs
10,000 lbs
48
$98
$168
$90
$160
$87
$152
SL9904
36 x 22 x 22"
35 3/16 x 21 3/16 x 16 1/2"
750 lbs
10,000 lbs
33
$79
$136
$73
$125
$68
$116
SL1268
36 x 36 x 36"
35 3/16 x 35 3/16 x 30 1/2"
200 lbs
10,000 lbs
63
$126
$228
$115
$209
$109
$197
SL5472
40 x 40 x 40"
39 1/3 x 39 1/3 x 34 1/2"
2750 lbs
10,000 lbs
84
$152
$275
$135
$244
$130
$235
SL8035
41 x 28 3/4 x 25 1/2"
40 3/16 x 27 7/8 x 20"
2000 lbs
11,000 lbs
54
$100
$181
$92
$167
$86
$156
SL4329
48 x 30 x 35"
47 1/4 x 29 1/4 x 29 1/2"
2500 lbs
12,000 lbs
66
$135
$245
$125
$227
$118
$214
SL7150
48 x 40 x 42"
47 3/16 x 39 3/16 x 36 1/2"
3000 lbs
10,000 lbs
89
$149
$270
$137
$248
$130
$235
SL2681
48 x 45 x 35"
47 3/16 x 44 3/16 x 29 1/2"
2000 lbs
12,000 lbs
98
$156
$283
$145
$263
$136
$247
SL6943
48 x 48 x 28"
47 3/16 x 47 3/16 x 22 1/2"
3000 lbs
9,000 lbs
87
$147
$266
$135
$245
$127
$230
SL8571
48 x 48 x 48"
47 3/16 x 47 3/16 x 42 1/2"
3000 lbs
9,000 lbs
107
$177
$321
$168
$304
$158
$286
SL3702
58 x 42 x 46"
57 3/16 x 41 3/16 x 40 1/2"
3100 lbs
8,000 lbs
130
$179
$325
$169
$306
$159
$289
SL1498
60 x 48 x 48"
59 3/16 x 47 3/16 x 42 1/2"
3500 lbs
7,000 lbs
127
$223
$404
$211
$383
$203
$368
SL9360
60 x 60 x 48"
59 1/4 x 59 1/4 x 42 1/2"
3500 lbs
7,000 lbs
152
$244
$443
$232
$421
$222
$402
SL5247
60 x 60 x 60"
59 1/4 x 59 1/4 x 54 1/2"
3500 lbs
7,000 lbs
161
$304
$552
$288
$522
$275
$500
SL7814
67 x 30 x 30"
66 3/16 x 29 3/16 x 25"
1550 lbs
10,000 lbs
94
$153
$278
$144
$261
$134
$243
SL2109
72 x 24 x 24"
71 1/4 x 23 1/4 x 17 1/2"
1750 lbs
10,000 lbs
88
$127
$230
$117
$212
$110
$199
SL6583
72 x 36 x 36"
71 1/4 x 35 3/16 x 30 1/2"
1750 lbs
10,000 lbs
126
$195
$354
$177
$321
$169
$306
SL4096
72 x 48 x 48"
71 1/4 x 47 1/4 x 42 1/2"
3500 lbs
7,000 lbs
146
$234
$424
$221
$401
$211
$383
SL8730
84 x 24 x 24"
83 3/16 x 23 1/4 x 17 1/2"
3500 lbs
7,000 lbs
101
$157
$285
$147
$266
$136
$247
SL5912
84 x 48 x 48"
83 3/16 x 47 1/4 x 42 1/2"
3500 lbs
7,000 lbs
200
$295
$535
$279
$506
$267
$484

Don't see your size?

We build custom, too. Reach out today!
01

Protective

Chamfered 5-ply ¼” plywood provides strength and durability.
Contact us
02

Customizable

Custom is our strength. We also offer numerous pre-sized options, including 29 Uline Sizes.
Contact us
03

Built to Stack

Simple-Lock™ crates range in stacking strength from 5,000 lbs to 12,000 lbs.
Contact us
04

Max Capacity

Simple-Lock™ crates range in weight capacity up to 3,500 lbs.
Contact us
WATCH

How the Simple-Lock™ system works

Click below for a demo.

Simple-Lock™ Variations

Simple-Fold™

The Simple-Fold™ comes with pre-attached walls for lightning-fast assembly.

Simple-Half Hinge™

The Simple-Half Hinge™ combines the convenience of the Simple-Fold™ with additional ease of loading.

Simple-Lock™

The Simple-Lock™ is built with thicker panels for ultimate strength and durability.

The benefits of National Crate

Scroll to see some of the key features of our engineered shipping crates, or click below to learn more about our company.
1

Strength + Durability = Dependability.

Our panels are pre-machined to interlock for ultimate strength, so you can rest assured your valuable products are safe during shipping.
2

Easy Assembly. No Nails.

Our crates are assembled by sliding each component into place, then securely locking them by folding locks into machined slots.
3

Ship Flat, Store Flat.

Save space, our crates arrive flat, saving you costly cargo room during shipping and storage.
4

Load with ease. Stack with confidence.

Easily load and secure large items to crate base prior to assembly. Once assembled, our crates are designed to be easily stacked.