Lc smith double5/19/2023 Special area reference - a reference to a separate diagram detailing a special area (numbers indicate which diagram)Įlevation reference - a reference to an elevation diagram (numbers indicate which diagram) Job datum level - indicates the altitude at a specific point, relative to a universal reference point known as a ' datum'. To help make things a bit easier, we've put together a cheat sheet to explain many of the more common abbreviations and symbols:įloor level (note: the floor level is provided as a figure relative to a datum, or universal reference point) It's not always easy to make an educated guess about what a particular abbreviation or symbol might mean. House plans like floor plans, site plans, elevations and other architectural diagrams or blueprints are generally pretty self explanatory - but the devil's often in the details.
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