We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A triangle or circle marking a stated height.
Also known as: Spot level symbol, Datum level marker, Finished floor level symbol
On an architectural drawing a level datum marks a point of stated height, given relative to a site datum or to a national survey datum.
Marks a point whose height is stated, relative to a named datum.
Contexts: Technical drawing
Is meaningless without its datum, and a drawing that gives levels without naming the datum they are measured from cannot be set out on site.
Contexts: Technical drawing
A small triangle or half-filled circle placed at the point, with a figure written beside it giving the height.