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.

Best For
How to choose
Specs at a Glance
| Material | ECT-44 Kraft Corrugated |
| Dimensions (Outer) | 48¬Ω" L βΓ³ 6¬Ω" W βΓ³ 38" H |
| Box Style | Two-Piece Telescoping with Full Overlap Bottom |
| Unit Quantity | Bundle of 10 |
| Recyclable | Yes |
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 Bundle of 10. Check the current product page for variant details, price, availability, and pack count before checkout.
Shipping & Packaging
Frequently Asked Questions
Yes. This SKU is the outer box only. You must also order the T48638INHD inner box to create a complete, functioning telescoping carton set. Both are required for assembly and use.
ECT (Edge Crush Test) 44 means the corrugated can withstand 44 pounds of force per linear inch when compressed edge-wise. This rating supports 4 - 5 tier stacking on pallets, critical for warehouse density and freight efficiency. Higher ECT ratings reduce crush-through during multi-tier loads.
Telescoping boxes compress flat for storage and ship, then adjust to the exact height needed for each product. This eliminates over-sizing and dimensional weight surcharges, you pay only for space actually used. Reduces inventory SKUs for variable-height items.
Full overlap (FOL) means all bottom flaps extend across the entire carton base, with the outer flaps fully covering inner flaps. This design creates maximum stacking strength and prevents bottom separation under heavy loads, essential for multi-tier palletized shipments and long-distance transit.
Technical Specifications
| Box Style | Two-Piece Telescoping with Full Overlap Bottom |
| Unit Quantity | Bundle of 10 |
| Recyclable | Yes |
| Color | Kraft |
| Strength / Material | ECT-44 Corrugated |
| Dimensions (Internal) | 48" Γ 38" Γ 38" (L Γ W Γ H) |
Shipping Information
Outer Carton Dimensions
48" Γ 38" Γ 38" (L Γ W Γ H)
Unit of Measure
BUNDLE
Qty Per Shipping Unit
10 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
48x38" Heavy-Duty ECT-44 Telescoping Outer Box - Adjustable, Bundle of 10
Related products
Shop corrugated boxes
Compare resources using the current product page data: SKU T48638OUTHD , type Boxes - Corrugated , sold-as unit BUNDLE / pack count 10 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.



