Heavy-duty 6x4x3" corrugated boxes in ECT-32 kraft material deliver reliable stacking performance for high-volume fulfillment operations. Each 25-box bundle reduces per-unit costs while maintaining superior crush resistance. Recyclable kraft construction meets eco-conscious supply chain standards.
In Stock SKU: 643

6x4x3 ECT-32 Kraft Corrugated Boxes - 25-Pack Bulk Shipping

6x4x3 ECT-32 Kraft Corrugated Boxes - 25-Pack Bulk Shipping. Use this item for products that match the listed inside dimensions, box style, board strength when shown, and bundle quantity. Listed specs include size 6 x 4 x 3 in; material kraft; sold as box 643. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

$13.86 / BUNDLE (25 PER BUNDLE)
Order timing and shipping options show at checkout
Delivery shown at checkout
Confirm this specSKU 643

6x4x3 ECT-32 Kraft Corrugated Boxes - 25-Pack Bulk Shipping: compare by inside dimensions, board strength when listed, style, and bundle quantity. Confirm SKU, sold-as unit, price, availability, and checkout delivery before ordering.

Size
6 x 4 x 3 in
Material
ECT-32 Single Wall Corrugated
Color
Kraft
Sold as
BUNDLE (25 PER BUNDLE)
Freight class
125
Material
ECT-32 Single Wall Corrugated Kraft
Dimensions
6" L x 4" W x 3" H
Box Style
Regular Slotted Container (RSC)
Good fit for

Good fit for products that match the listed inside dimensions, box style, board strength when shown, and bundle quantity. Confirm inside dimensions, board strength if listed, box style, assembled fit, and how much void fill or protection the item needs.

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Exact-spec procurement

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SKU
643
Product
6x4x3 ECT-32 Kraft Corrugated Boxes - 25-Pack Bulk Shipping
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Confirm dimensions, material, pack count, price, and availability on this page before ordering.

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Best For

Good fit for products that match the listed inside dimensions, box style, board strength when shown, and bundle quantity. Confirm inside dimensions, board strength if listed, box style, assembled fit, and how much void fill or protection the item needs.

How to Choose the Right Packaging

The buying decision should be based on the exact inside dimensions, board strength when listed, style, and bundle quantity, not the category name alone. Use the current product page as the source of truth for SKU, variant, price, availability, sold-as unit, and checkout delivery.

Specs at a Glance

MaterialECT-32 Single Wall Corrugated Kraft
Dimensions6" L x 4" W x 3" H
Box StyleRegular Slotted Container (RSC)
Bundle Quantity25 Boxes per Bundle
RecyclableYes
Common Use Cases
  • Packing ecommerce orders, replenishment shipments, parts, office supplies, or warehouse transfers.
  • Comparing box sizes for product fit, storage space, parcel cost, and reorder quantity.
  • Reordering by exact product link, SKU, or sold-as quantity.
  • Adding the item to a mixed-SKU or recurring supply request when quantity, delivery ZIP code, or timing matters.
What You'll Receive
  • This listing is sold as box 643. Check the current product page for variant details, price, availability, and pack count before checkout.
Shipping & Packaging

Delivery options and timing are shown at checkout based on item and destination. For larger quantities, freight-sensitive items, mixed-SKU needs, or recurring supply, send the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

Frequently Bought Together

Related supplies

Frequently Asked Questions

ECT-32 represents Edge Crush Test rating of 32 lbs per inch, standard single-wall strength suitable for typical industrial shipping. This rating supports stacking loads up to 25-30 lbs per box in warehouse conditions, making it ideal for most B2B fulfillment operations without overengineering costs.

Flat-packed bundles of 25 achieve approximately 60-70 bundles per pallet (1,500-1,750 boxes), maximizing freight efficiency. Compared to rigid pre-assembled boxes, flat-packing reduces dimensional weight charges by 70-80%, directly lowering your per-unit shipping costs.

ECT-32 kraft corrugated meets standard shipping compliance for non-hazardous goods. For food contact or regulated pharmaceutical applications, we recommend consulting our packaging specialist to confirm specific FDA or industry certifications required.

Volume pricing unlocks at 50+ bundles (1,250+ boxes). Custom printing, reinforced bottoms, and interior partitions are available. Contact our sales team for case-quantity pricing and design modifications tailored to your fulfillment requirements.

Technical Specifications

Box StyleRegular Slotted Container (RSC)
Bundle Quantity25 Boxes per Bundle
RecyclableYes
Color Kraft
Strength / Material ECT-32 Single Wall Corrugated
Dimensions (Internal) 6"" × 4"" × 3"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

10.5" × 8.0" × 7.75" (L × W × D)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

25 PER BUNDLE

LTL Freight Class

Class 125

Delivery Method

Shown at checkout

ORDER SUPPORT

Product Support

We aim to show product specs, case quantities, and availability clearly. Contact support if an item does not match the listed product details.

Secure checkout LTL freight available on case/skid orders

Buyer guides

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How to Measure for Shipping

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