21x15x15 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 20-Pack
$59.73
/ bundle of 20$2.99 per box
Request bulk pricing
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
21" × 15" × 15"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
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 |
| GTIN | 841436087896 |
| 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.
Durable ECT-32 kraft corrugated boxes sized 21 " x 15 " x 15 " deliver reliable stacking performance and freight efficiency for high-volume fulfillment operations. This bundle of 20 shipping cartons offers standard industrial strength at competitive pricing. Fully recyclable and ready to integrate into your packaging workflow.
Ideal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Large shipping boxes: Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.
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.