Encorporating a letter box into a brick or block retaining wall is something we are often asked by clients to build here at Dans Landscape Bricklaying. There are many letterbox inserts to choose from. Square, rectangle, silver, black, white, big and small,or custom design. There is a style to complement your brick or block colour. We chose the round face silver one. And so begins the round face letter box series. One day, many years ago, a younger me was browsing the letter b