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Span =
Distance between two supports.
Spandrel =
Triangular area on each side of an arch. Also a
support unit between columns or piers.
Splay =
Slanted or beveled surface.
Split =
To split or break a masonry unit lengthwise
parallel to the bed side.
Stiff mortar =
Low water mortar; a drier mortar.
Storypole =
Stick or pole marked with key masonry height
that is used as a guide when laying corners.
Stretcher =
Masonry unit laid lengthwise
on its bed; the face side faces
out.
Striking =
Tooling or jointing a mortar joint.
Stringing mortar =
Spreading out a mortar bed for the laying of
several units.
Stripped joint =
A type of raked joint, used with bricks
of rough texture.