Basically, masonry is talking about any material which is put together in units and bound in addition to what is called mortar. Mortar is short, the "glue" of those sorts of things. There are a myriad of different materials you can use in bricked in mailbox, including granite, brick, marble, https://devinehjk17384.dekaronwiki.com/1379203/brick_mailboxes_classic_curb_appeal_with_lasting_durability