20x20x30 Boxes
20x20x30 Boxes
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Parent category: Corrugated Boxes Buying Guide
20x20x30 boxes are 12,000 cubic inches of space — a standard corrugated shipping size for ecommerce orders, apparel, and mid-weight product kits.
Quick facts
| In-stock SKUs | 4 |
|---|---|
| Total options | 4 |
| Price from | $45.35 |
| Price to | $82.86 |
| Average price | $59.09 |
| Materials | corrugated, kraft |
| Strengths | ECT-32, ECT-44, ECT-48 |
| Pack quantities | 10 |
In-stock options
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30x20x20 ECT-44 Heavy-Duty Multi-Depth Corrugated Boxes - Bundle of 10
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30x20x20 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 10
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30x20x20 ECT-32 Kraft Corrugated Boxes - Industrial Strength, Bundle of 10
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20x20x30 ECT-32 Kraft Corrugated Boxes - Reliable Strength, Bundle of 10
When to use
- Shipping rigid goods that fit 20x20x30 inches (L x W x H).
- Orders where dimensional weight matters — this size avoids wasted cube.
- Bulk case packs for 3PLs, Amazon FBM, and DTC fulfillment lines.
When not to use
- Goods significantly smaller than 20x20x30 — you pay for wasted void.
- Items over 50 lb — step up to ECT-44 or ECT-48 double-wall.
Related
Frequently asked
What is a 20x20x30 box used for?
20x20x30 boxes are 12,000 cubic inches of space — a standard corrugated shipping size for ecommerce orders, apparel, and mid-weight product kits.
What's the dimensional weight (DIM weight) of a 20x20x30 box?
A 20x20x30 box has 12,000 cubic inches of interior space. At the FedEx/UPS Ground domestic divisor of 139, the dimensional weight rounds up to about 87 lb (86.33 lb before rounding). Carriers charge for the greater of actual weight or DIM weight, so this is the minimum billable weight for a 20x20x30 carton even if it's lightweight.
What ECT strength ratings are 20x20x30 boxes available in?
Packrift stocks 20x20x30 boxes in ECT-32, ECT-44, and ECT-48 strength ratings. ECT-32 is the standard for most ecommerce shipments under ~50 lb; ECT-44 and higher are for heavier loads, double-stacked pallets, or freight shipping. 4 in-stock SKUs are available across these grades.
What case-pack sizes do 20x20x30 boxes come in?
Packrift sells 20x20x30 boxes in case packs of 10 per case. Bulk pricing improves with larger case quantities — see each product page for the exact case size.
What box sizes are similar to 20x20x30?
Buyers comparing 20x20x30 boxes also consider 18x18x30, 18x18x28, 20x20x26, and 24x24x30 boxes. See related sizes below or use the box size calculator to find the closest fit for your product dimensions.