The Square Corner Lamp Shade resembles a pyramid and features sharp, clean lines. This shade looks best when paired with a structured lamp base with squared off corners (think mission style). Offered in a variety of fabrics ranging from silk-like shantung fabric, neutral linens and faux leather rawhide. The Square Corner Lamp Shade is part of the Royal Designs, Inc. Timeless Basic Shade Collection. Royal Designs has been in the lampshade business since 1993 with our multiple shade lines that exemplify handcrafted quality and value. Height is measured by slant height from top to bottom of the lampshades? front face. Measurements listed as (TOP x BOTTOM x HEIGHT). Please measure your existing shade--a replacement harp may be needed for a proper fit or additional adjustment if changing height of shade.