Lattices/structures are good for detailed wall structures. For simpler walls, another option is to use 2D faces and apply a picture texture/materials. They can be booleaned. I've used them both for indoor and outdoor walls. The Mill here consists of 'cube' beams, but all the walls, roof are 2D faces. The glass windows are 2D faces, booleaned within a cube/negative cube window frame. http://www.iaw.on.ca/~jspirko/swan_mill.htm The swans started out as greyscales on lattices, exported as OBJ files so I could use UVMapper to create texture maps. John Spirko