According to Stamps.com Large Cube Box size is 12 1/4" x 12 1/4" x 8 1/2". Contents must not weigh more than 70 lbs. Lower weight limits may apply.
Packages can be sent using Priority Mail Express®, Priority Mail®, First-Class Mail® Parcels, Standard Post™, and Package Services.
Dimensional (DIM) weight pricing calculates shipping costs based on the space a package takes up, as well as its weight. How dimensional weight pricing works? Learn more at USPS.com.
Peanuts, popcorn and exploding bubble roll. Yep, sometimes shipping a package seems more like a circus than a routine activity. Leave the clowning around to others! Check out some tried-and-true boxing and packaging safety tips to guarantee a smooth arrival at Staples.com.