sills
Frames' bottom edges
Sills are the horizontal members at the base of a structure or opening.
A window sill is the ledge at the bottom of a window frame, inside or out: She set plants on the windowsill.
A door sill is the threshold you step over.
In construction, a sill plate is the lumber that sits directly on a foundation, supporting the frame above.
In geology, a sill is a horizontal sheet of igneous rock intruded between existing layers.
Point of beginning
- ledgeProjecting horizontal surface
- lintelBeam over an opening
- jambVertical frame member
- casementHinged swinging window
frame · apron · stool · reveal · fenestration · mullion · transom · casing
Unauthorized entry into space
- magmaMolten rock underground
- igneousFormed from cooled magma
- basaltFine-grained volcanic stone
- doleriteMedium-grained mafic rock
diabase · sheet · layer · bedrock · outcrop · formation · dike · pluton
Underlying support structure
- supportTo uphold or sustain
- beamStructural support member
- load-bearingSustaining structural mass
- frameworkUnderlying support system
underpinning · base · plate · anchor · substructure · reinforcement · bearing · timber
threshold
Point of beginning
casement · frame · apron · stool · reveal · fenestration · mullion · transom · casing · flashing
intrusion
Unauthorized entry into space
dolerite · diabase · sheet · layer · bedrock · outcrop · formation · dike · pluton · crystalline
foundation
Underlying support structure
- supportTo uphold or sustain
- beamStructural support member
- load-bearingSustaining structural mass
framework · underpinning · base · plate · anchor · substructure · reinforcement · bearing · timber · concrete
- geologybedrock, fault lines, faults, rock, basalt
- building partsfacades, wall, door, windows, floor
- masonrymason, brick, bricks, stone, mortar
- concrete productsconcrete blocks, concrete beams, concrete pipes, concrete tiles, concrete panels
- millworkcrown molding, baseboards, wainscoting, chair rail, molding
- structural supportsbeams, posts, columns, scaffold, girders