Strongbox cartons are a strong, inexpensive carton that offers a protective solution for shipping
framed art. Art is safely encased in two layers of convoluted (egg carton)
foam and one layer of perforated foam. The foam liner is easily customized
by removing the perforated squares to form an opening that secures the
artwork. These multiple layers provide superior shock absorption. The
plastic liners provide the strength of plywood without the weight. Available
in both 275# Test weight and 500# Test weight. Additional sizes are available special order. Exterior cardboard 100% recycled.