Ideal for warehouse managers and fulfillment directors shipping variable-sized products who need to reduce carton SKU inventory. These 12.5" x 12.5" x 12" multi-depth corrugated boxes feature pre-scored sides that fold to multiple heights, eliminating the need for multiple box sizes and carton sizers while maintaining ECT-32 durability for reliable stacking and freight protection.

Best For
How to choose
Specs at a Glance
| Material | ECT-32 Single Wall Kraft Corrugated |
| Outer Dimensions | 12.5" L x 12.5" W x 12" H (adjustable to 4", 6", 8", or 12") |
| Color | Kraft (Natural Brown) |
| Sold As | Bundle of 25 Units |
| Recyclable | Yes |
Common Use Cases
- E-commerce fulfillment centers shipping multiple product sizes with variable height requirements Third-party logistics providers optimizing parcel dimensional weight charges across mixed shipments Direct-to-consumer retailers reducing carton SKU complexity and warehouse storage footprint Food and beverage distributors shipping products requiring secure, adjustable-fit packaging Electronics and industrial parts distributors needing customizable box heights without equipment
What You'll Receive
- 25 pre-scored, multi-depth corrugated boxes (12.5" x 12.5" x 12" when fully extended)
Shipping & Packaging
Frequently Asked Questions
Yes. The pre-scored panel design allows boxes to collapse securely to 4", 6", 8", or 12" heights without tools or equipment. This single SKU eliminates the need to stock separate 4x4x4, 6x6x6, 8x8x8, and 12x12x12 boxes, reducing inventory management complexity and procurement costs.
ECT (Edge Crush Test) 32 measures the corrugated board's ability to resist crushing under vertical pressure. ECT-32 kraft provides strong stacking performance, protecting product during warehouse stacking and transit while maintaining cost-efficiency for standard shipping applications and reducing damage claims.
Parcel carriers calculate dimensional weight (box volume / 166). By collapsing boxes to fit your product exactly, you reduce cubic inches, lower dimensional weight charges, and decrease freight costs. A 6" tall shipment costs significantly less than shipping in a full 12" box.
These ECT-32 kraft corrugated boxes are suitable for general shipping of non-food products, electronics, apparel, and industrial goods. For food contact or specialized compliance (FDA, organic certification), contact Packrift to confirm product suitability for your specific application.
Technical Specifications
| Sold As | Bundle of 25 Units |
| Recyclable | Yes |
| Color | Kraft |
| Strength / Material | ECT-32 Single Wall Corrugated |
| Dimensions (Internal) | 12 1/2" × 12 1/2" × 12" (L × W × H) |
Shipping Information
Outer Carton Dimensions
12 1/2" × 12 1/2" × 12" (L × W × H)
Unit of Measure
BUNDLE
Qty Per Shipping Unit
25 PER BUNDLE
LTL Freight Class
Class 125
Delivery Method
Shown at checkout
Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.
Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.
For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.
ORDER SUPPORT
Product Support
Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.
Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.
Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.
Contact product supportBuyer guides
Buying notes and spec resources stay here instead of taking space above the cart.
Use this product as the source
12.5x12.5x12 Multi-Depth Corrugated Boxes ECT-32 Kraft - 25 Pack
Related products
Shop corrugated boxes
Compare resources using the current product page data: SKU MD121212R , type Boxes - Corrugated , sold-as unit BUNDLE / pack count 25 PER BUNDLE . Confirm the product page price, availability, and selected variant before ordering.
Compare inside dimensions, board grade, style, and bundle quantity.
Product support Use the box size calculatorUse this tool when item size, void fill, or storage space affects the carton.



