Poster Palooza 22x22 Contemporary Black Wood Shadow Box Square Frame - UV Acrylic, Acid Free Backing, Hanging Hardware Included! This Shadow Box Frame Has Interior Dimensions of 22x22 Inches. Overall dimensions 23x23 Inches. Moulding Width: 1 Inches - Rabbet Depth: 1 5/16 Inches UV Resistant Frame Grade Acrylic Sheet & Acid Free Backing Included. Hanging Hardware included for vertical or horizontal display.