Editing Brickwork (section)

==Terminology==
[[File:Faces of brick.jpg|thumb|right|Faces of brick]]
As the most common bricks are rectangular prisms, six surfaces are named as follows:
* Top and bottom surfaces are called ''beds''
* Ends or narrow surfaces are called ''headers'' or ''header faces''
* Sides or wider surfaces are called ''stretchers'' or ''stretcher faces''<ref name="Construction Technology">{{cite book |last1=Fleming |first1=Eric |title=Construction Technology |date=2006 |publisher=Blackwell Publishing Ltd |location=UK |isbn=1-4051-0210-1  }}</ref>

[[File:Brick terminology.jpg|thumb|right|Mortar terminology- showing perpends and bed.]]
Mortar placed between bricks is also given separate names with respect to their position. Mortar placed horizontally below or top of a brick is called a ''bed'', and mortar placed vertically between bricks is called a ''[[Perpend stone|perpend]]''.
[[File:Single brick.jpg|thumb|Solid brick]]
[[File:Single frogged brick.jpg|thumb|Single frogged brick]]
[[File:Double frogged.jpg|thumb|Double frogged brick]]
[[File:Cellular brick.jpg|thumb|Cellular brick]]
[[File:Perforated brick 2.jpg|thumb|Perforated brick]]
A brick made with just rectilinear dimensions is called a ''solid brick''. Bricks might have a depression on both beds or on a single bed. The depression is called a ''frog'', and the bricks are known as ''frogged bricks''. Frogs can be deep or shallow but should never exceed 20% of the total volume of the brick. Cellular bricks have depressions exceeding 20% of the volume of the brick. Perforated bricks have holes through the brick from bed to bed, cutting it all the way. Most of the building standards and good construction practices recommend the volume of holes should not exceed 20% of the total volume of the brick.<ref name="Construction Technology"/>

Parts of brickwork include ''bricks'', ''beds'' and ''perpends''. The bed is the mortar upon which a brick is laid.<ref>[[#Nicholson|Nicholson]], p. 166. "BED.—The under-surface of bricks when laid in any kind of work."</ref> A perpend is a vertical joint between any two bricks and is usually—but not always—filled with mortar.<ref>Reports of artisans selected by a committee appointed by the council of the Society of Arts to visit the Paris Universal exhibition, 1867. Published for the Society for the Encouragement of Arts, Manufactures and Commerce. Published by Bell and Daldy, York Street, Covent Garden, London. Printed by W.&nbsp; Trounce, Cursitor Street, Chancery Lane, London. 1867. Part&nbsp;1. Bricklaying by George Howell. Page&nbsp;194. "The beauty of brickwork will very much depend upon the 'perpends' being perfectly kept, that is, the perfect regularity of the perpendicular joints right up the building."</ref>

A "face brick" is a higher-quality brick, designed for use in visible external surfaces in '''face-work''', as opposed to a "filler brick" for internal parts of the wall, or where the surface is to be covered with [[stucco]] or a similar coating, or where the filler bricks will be concealed by other bricks (in structures more than two bricks thick).