"200-lb/ 32 ECT test. Box size: 13L x 10W x 10""H(D). 25 boxes/bundle, 500 boxes/bale. Industrial-weight corrugated fiberboard boxes meet all federal specifications for mailing and shipping via UPS, FED EX, truck, rail and parcel post. Shipped flat and bundled for compact storage. Larger quantities, e-mail us at info@quill.com for quote."