SimplifyDIY Glossary: B
The regular arrangements of bricks or stones in a wall so that the units may be joined together http://www.simplifydiy.com/glossary/b
Cavity Wall Insulation
That is they combine with the still captive air between the bricks to form an effective barrier to heat loss http://www.simplifydiy.com/walls-and-ceilings/wall-insulation/cavity-walls
Common Window Sizes
Originally made to fit with bricks that were http://www.simplifydiy.com/windows-and-doors/windows/window-sizes