These cartons are scored at Multiple Depths to allow height adjustment for a perfect fit! No Carton Sizer needed!  Simply cut down to your desired size! Multi-Depth Stock Cartons are made from strong 200#-C / ECT-32-C corrugated and 275#-C / ECT-44-C on some of the larger sizes. All Ship & Store Flat! Sizes listed are all inside dimensions. Prices do not include shipping.  Boxes are shipped from Chicago, IL.