The drawing set
A complete construction set includes architectural, structural, mechanical, electrical, and plumbing sheets, plus civil and landscape on larger projects. Sheets are organized by discipline letter and number, such as A-1.0 for the first architectural sheet. Always work from the most current revision; old sheets cause expensive mistakes.
Scales and dimensions
Residential plans are typically drawn at one-quarter inch equals one foot. Details may be at one inch or three inches equals one foot. Never scale a drawing for critical dimensions; always use the written dimension. If a dimension is missing, send an RFI rather than guess.
Specs versus drawings
Specifications describe materials, finishes, and installation methods that the drawings cannot show. When there is a conflict, written specs usually govern over drawings, and large-scale details govern over small-scale ones. Read both before bidding and again before ordering materials.
Mini-quiz
Attempt 1 · 3 questions
Check your understanding. Passing is 70% — but you can keep going to the next lesson either way.
Question 1
Based on "The drawing set", which statement is correct?
Question 2
Based on "Scales and dimensions", which statement is correct?
Question 3
Based on "Specs versus drawings", which statement is correct?