PlansHow to read a floor planWhat a floor plan actually is, why line weight carries meaning, how walls, doors, windows, tags and hatch are drawn, and the order to read a plan in so that nothing important is missed.About 1853 words.Vertical viewsHow to read elevations and sectionsThe difference between an elevation and a section, how markers on the plan locate both, how level datums give heights, and what a section shows that no plan can.About 1512 words.ScaleThe architect's scale explainedWhat a drawing scale actually promises, the architect's and engineer's families, how to convert in both directions, why the bar scale beats the printed note, and the errors a wrong scale produces.About 1424 words.DimensionsReading dimension stringsWhy dimensions come in parallel rows, how overall, grid and locating strings check each other, what CLR and EQ actually instruct, and what face a dimension is taken to.About 1489 words.NavigationSheet numbering and set organisationHow a US sheet number encodes discipline and drawing type, why the order of a set is not arbitrary, what the sheet index is for, and how to find a drawing without hunting.About 1349 words.Cross referencesSection and detail calloutsHow a marker on one drawing names a drawing on another, what each marker shape means, how to read the drawing number over the sheet number, and what a match line is telling you.About 1388 words.SchedulesDoor and window schedulesHow a tag on a plan resolves into a row in a schedule and a type drawn in elevation, what each column of a door and window schedule carries, and where the schedule hands off to the specification.About 1404 words.PlansReflected ceiling plansWhat reflected means and why the plan is not flipped, how ceiling heights and grids are shown, what appears on a ceiling plan and what does not, and how it coordinates with the mechanical and electrical sheets.About 1323 words.StructuralReading structural drawingsHow foundation and framing plans are organised, why the grid carries everything, how member callouts and footing tags are read, and where a structural drawing stops and the architectural one starts.About 1288 words.ConsultantsReading MEP drawingsWhy consultant plans show the architecture screened, how to follow air, water and circuits, what duct and pipe labels carry, and how coordination between the trades is actually checked.About 1373 words.

Where to go next

A guide explains a convention. The lessons walk you through the same material on a real sheet with a checkpoint at the end, and the reference pages are the lookup you keep open while you work.