15-PACK imensions inside 36 x 12 x 12, outside 36-3/8 x 12-3/8 x 12-3/8 UPS / Fedex dimension weight 41-lbs Material: C Flute Glued Seams Meets ASTM D5118 Singlewall Crush Rating #200 / 32 ECT which is 65-lbs -------------------------- Please contact us with any questions prior to ordering. Items are stored in a temperature controlled, smoke free warehouse. Ships with packing list that shows pricing. Handling Time is same business day if before carrier pickup, cut-off time is 2:00pm CST, however, it is possible orders after cut-off ship same day depending on what time carrier pickup occurs. All orders receive a tracking code and ship from Illinois. Same day shipping is a best effort, not guaranteed, due to carriers sometimes arriving unusually early for pickup, we have no control over shipping carrier operations. Not returnable if sealed packaging is opened. Situations easily fixable by contacting us for help... 1) Shipping damage; contact us with photo(s) of the damage, then we can work on resolving the situation. 2) Order pulled wrong; contact us with the UPC or part number of what you did receive. 3) Defectives are very rare and handled as warranty by manufacturer, supplier or seller. 4) New items are typically warranted by the manufacturer or supplier, often contact information is on the packaging or user's manual.