Corrugated double wall · 275 lb test
Double wall cardboard boxes, shipped anywhere in the USA.
Order one box or a few hundred. They arrive flat and ready to fold, at any address in the country.
- $4.11starting price per box
- 275 lbdouble wall strength
- 50 stateswe ship nationwide
Pick a size
Price per box. Mix sizes in the same order.
Double wall
275 lb test — our strongest, best for shipping and heavier loads.
Most popular
Single wall
Lighter-duty and more economical — best for light items and short storage.
Packing supplies
Tape, stretch film and a digital scale to round out your shipment.
Shipping to the whole USA
We ship to any address in the country. Free shipping on orders over $150.00.
Secure payment
We confirm every order by email before it ships.
Large orders
Need boxes by the pallet or a custom size? Email us at info@empacalo.us.
Not sure what you need?
Leave your name and number and we'll call you back to help you pick the right boxes or work out a wholesale quote.
Frequently asked questions
What does "275 lb double wall" mean?
The board has two layers of corrugated fluting instead of one, and passes a 275 lb per square inch bursting test. In practice: the box stays square when stacked and doesn't buckle with heavy items inside.
Do boxes come assembled?
No, they ship flat. Folding one takes a few seconds; tape the bottom seam and it's ready.
Where do you ship?
Anywhere in the United States. When your order ships we email you the tracking number.
How much is shipping?
A flat $15.00 per order, and free on orders over $150.00. You see the exact total before paying.
How do I pay?
By card on our secure checkout page. If online payment isn't enabled yet, we'll email you to arrange payment (Zelle, bank transfer, etc.).
Do you have wholesale pricing?
Yes — the price per box drops automatically once you order 50 or more of the same size. Message us from the Wholesale section for exact pricing on your volume.