noun Architecture. flat arch.
jack arch 🔊 Listen to this noun Architecture. flat arch. jack-arch-with-shaped-voussoirs | International Masonry Institute 4 Course Jack Arch Bricks with Arch Key A typical form of jack arch slab and its details | Download Guide to repair and waterproofing of Jack Arch Concrete Roof | Civil Jack Arches – GlenGeryBrick Share Facebook Twitter Google +