21x15x15 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 20-Pack 211515
$59.73
/ bundle of 20$2.99 per box
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Secure checkout
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
| Pallet or repeat orders | Get a delivered quote |
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Shipping & returns details
Ships from U.S. warehouses. 30-day returns on unopened stock items.
Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.
Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.
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Inside dimensions
21" × 15" × 15"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
From our customers
“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”
“They helped us choose the right packaging for our products and made ordering easy.”
“Ordering was easy, everything arrived as described, and we’ll definitely order again.”
Questions before you order?Talk to us
Specifications
| Inside dimensions | 21" × 15" × 15" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 20 |
| Physical units per order increment | 20 (one bundle) |
| Bundle weight | 32.32 lb |
| Outer carton (shipping) | 36.25 × 30.5 × 6.75 in |
| LTL freight class | Class 125 |
| SKU | 211515 |
About this item
SKU 211515 — 21" × 15" × 15", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 20, shipped from US warehouses.
21x15x15 ECT-32 kraft corrugated heavy duty shipping boxes 20-Pack. Pack of 20 (20-pack). For shipping goods, organizing stockrooms, and packing household items. ECT-32 rated corrugated board. Natural kraft finish. Also called shipping cartons, corrugated cartons, or mailing boxes. Use them to ship e-commerce orders, store stock, or pack for a move.
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Common questions
What does ECT-32 mean, and is it right for my shipments?
ECT-32 (Edge Crush Test) indicates the box can withstand 32 pounds of pressure per linear inch. This standard-strength rating is ideal for typical e-commerce and industrial shipments. For heavier items (over 40 lbs) or multi-level pallet stacking beyond 48 inches, consider upgraded ECT-44 boxes.
How many of these boxes fit on a standard pallet?
A single layer of flat boxes (before assembly) stacks efficiently at roughly 70-80 flat bundles per 40" x 48" pallet, depending on your racking configuration. Once assembled, expect 60-80 boxes per pallet layer based on how you orient them for your specific warehouse setup.
Are these boxes sustainable and recyclable?
Yes. Kraft corrugated is 100% recyclable and made from renewable wood fiber. Using these boxes supports your sustainability goals and meets most eco-conscious customer expectations without premium costs.
Can I order partial bundles, or do you offer volume discounts?
Standard minimum is 20-box bundles. For operations requiring larger volumes, contact our B2B sales team, we offer tiered pricing on pallets (2,000+ units) that reduce per-unit cost significantly and qualify for freight optimization.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.