The term 'Storefront Panel' refers to a type of plate glass that is used in the construction of storefronts. It is a transparent material that is typically made from tempered glass and is used to provide a barrier between the interior and exterior of a building. The plate glass is usually framed with metal or wood and can be used to create a variety of different designs. Storefront panels are often used to create a modern, stylish look for businesses and can also provide additional security.