How to Read a Set of Shop Drawings

Plans, elevations, sections, and details — what each view is telling you, and why the approval stamp matters more than people expect.

Shop drawings are where a project becomes real. They're the difference between 'a reception desk, about yea big' and a buildable, dimensioned piece everyone has agreed on. If you're a designer, GC, or owner reviewing a set, it pays to know what each page is actually telling you.

The four views, and what each one answers

• Plan — the top-down view. Answers where the piece sits, how big its footprint is, and how it relates to walls, doors, and adjacent work.
• Elevation — the straight-on face. Answers how the front reads: door and drawer layout, heights, reveals, and proportions.
• Section — a cut straight through the piece. Answers how it's built: materials, thicknesses, internal structure, and clearances.
• Detail — a zoomed-in slice. Answers the small decisions: joinery, edge profiles, hardware, and where two materials meet.

The title block tells you what you're holding

Every sheet has a title block — project name, sheet number, date, and a revision number. That last one matters. Drawings get revised, and a cloud drawn around part of a view (with a little triangle and a number) flags exactly what changed since the last issue. Reviewing 'the drawings' without checking you're on the latest revision is how two people end up building to two different sets.

Why the approval stamp is the whole point

An approved drawing set is the contract for what gets built. Once it's signed, that's the piece — the shop cuts to it, the field installs to it, and everyone is protected by it. Changes after approval aren't free; they become change orders that cost money and, more painfully, time. The entire value of the process is that it's far cheaper to move a line on paper than to re-cut a finished panel.

What to check before you sign

• Dimensions match the field — has the shop verified the actual openings, or is this still working off the architectural set?
• Materials and finishes are called out — species, finish, sheen, edge treatment.
• Hardware is specified — hinges, slides, pulls, locks, and any special function.
• Cutouts and clearances are shown — sinks, appliances, outlets, and ADA heights where they apply.

Spend the time here and the install becomes the easy part. That's the goal: every hard decision made on paper, so the day we show up on site there are no surprises left.