Chapter 7 — Reference Card

Reading the Construction Documents: Drawings, Specifications, CSI MasterFormat, and Order of Precedence


Key Takeaways

  • Specifications govern quality and product. Drawings govern quantity and location. The drawings are nouns and coordinates; the specifications are adjectives and verbs. Neither is usable alone.
  • There is no universal order of precedence. It is whatever your contract says, and contracts say three different things: complementary (architect interprets), stated hierarchy (a ranked list), or most stringent governs. Find your clause. Write it down. Tape it in the front of the binder.
  • Four internal conventions apply almost everywhere: figured dimensions beat scaled · large-scale beats small-scale · addenda beat the base documents (latest first) · later modifications beat earlier ones. The last two are really about currency.
  • An order-of-precedence clause does not resolve drawing-to-drawing conflicts. It resolves document families. Two architectural sheets that disagree require the architect. Most experienced people get this wrong.
  • The contract documents are a specific enumerated list. Shop drawings, the geotech report, your schedule, and anything said at a pre-bid meeting are usually not on it.
  • Sheet numbers decode. Discipline letter, then view type: 0 general · 1 plans · 2 elevations · 3 sections · 4 large-scale views · 5 details · 6 schedules and diagrams · 9 3D.
  • Chase a detail: plan → building section → wall section → detail. Four sheets, under two minutes. Reference details as 3/A-311 — number over sheet, always.
  • Division 01 is where the money is. It is the only division with no trade attached, so nobody bids it and it defaults to you. Ray's cost the year he skipped it: $214,000, out of fee.
  • Read a specification section in ten minutes: Summary and Related Requirements → Submittals → Quality Assurance and mockups → Warranty → Manufacturers and Materials → Field Quality Control → Schedules.
  • UniFormat for conceptual, MasterFormat for detailed. UniFormat keeps a building system whole so you don't price only the visible half of a change. MasterFormat matches how subcontractors sell.
  • One reference standard citation imports hundreds of pages — test methods, acceptance criteria, frequencies, and reports. Confirm the edition. Where the adopted code is stricter, the code wins, because it is law.
  • There is exactly one current set. Everything else is stamped REFERENCE ONLY. Building from a superseded sheet cost Northgate $340,282.
  • A discovered discrepancy you don't report becomes yours. Most general conditions say so explicitly.
  • Timing is the whole game. The same air-barrier conflict: $20,200 in preconstruction, $262,250 in the field. Thirteen times, for the same eleven words in a specification.

Action Items — this week, on your job

  1. Find your order-of-precedence clause. Copy it out. Classify it. One page. Give a copy to your superintendent.
  2. Read Division 00 and Division 01, completely. Block the day. List every obligation that carries a cost or a date. This is the highest-return day in preconstruction.
  3. Build the drawing index and the specification-section index. Add a column: have I read it. Be honest.
  4. Run passes 2 and 5 on one assembly — your most expensive one. Put every document that touches it in one pile before you read anything.
  5. Start the discrepancy log today. Ten fields, every field filled, a dollar figure on every row. A discrepancy with no number does not get attention.
  6. Stamp the prints. One CURRENT — CONTROL SET; everything else REFERENCE ONLY — VERIFY CURRENT REVISION. Cost: a rubber stamp.
  7. Institute layout verification. No layout goes to a trade until someone checks the sheet number and revision against the log and initials it. Ten seconds.
  8. Calendar the substitution deadline from Division 01. After it passes, the spec is closed for the rest of the job.
  9. Redline the control set for fifteen minutes every Friday. Record drawings are a habit, not a closeout task.

Common Mistakes → the Fix

Mistake What it costs The fix
Reading the set sheet by sheet Finds almost nothing; the conflicts live between documents Read by assembly. Pile up every document that touches one assembly, then compare.
Skipping Division 01 because it's "boilerplate" $214,000, out of fee Read it first, completely, before any drawing.
Pricing the drawing and ignoring the specification The right quantity of the wrong product — e.g., mechanically attached roofing where a fully adhered 20-year NDL system was specified Quantity from drawings, product and quality from specs. Every time.
Assuming an order-of-precedence clause settles a drawing-vs-drawing conflict An unresolved conflict you thought was resolved Precedence resolves families. Two sheets that disagree go to the architect.
Scaling a dimension off a drawing Reproduction, plotter shrink, and drafting artifacts make it unreliable Figured dimensions govern. If the dimension is missing, that absence is itself a discrepancy — log it and write the RFI.
Building a bulletin because it looked official Unpriced, undirected scope performed for free Bulletins are for pricing. Only a CCD or a change order directs work.
Letting an ASI marked "no cost or time impact" pass without objection The impact becomes unrecoverable Object in writing inside your notice period. Find that period in week one.
Finding a discrepancy and not writing it down Converts the designer's problem into yours Log it the same day. Logging is a liability transfer executed in writing.
Field prints with no revision control $340,282 at Northgate One control set. Everything else stamped. Verify revision before layout.
Counting doors from the schedule without checking the plans Six unscheduled openings ≈ $11,400, plus unassigned fire ratings Count openings on the plans and reconcile to the schedule. Pairs are one opening, two leaves.
Chasing every "or equal" ~$5,910 of soft cost and 21 days per request | Chase only above ~$25,000 of hard savings, or >3 weeks of critical-path lead-time recovery, or a product you'll reuse on ten jobs.
Treating record drawings as a closeout task A fiction at turnover, and a facilities team that can't find a valve Redline the control set weekly, in color, initialed and dated.

Decision Framework

When two documents disagree — the 6:40 a.m. procedure

  1. Stop that scope. Move the crew, don't idle them. Eleven people idle costs about $600/hour; walking them to non-conflicted work costs the walk.
  2. Confirm currency first. Check both documents' revisions against the drawing log. A surprising share of "conflicts" are one superseded sheet.
  3. Identify the document families. Spec vs. drawing? Your precedence clause may resolve it. Drawing vs. drawing? It cannot — the architect must interpret.
  4. Apply the internal conventions if they fit: figured over scaled, large-scale over small-scale, later over earlier.
  5. Price both readings before you ask. You need to know what the answer is worth before you receive it.
  6. Write it down — log first, RFI second. Precise references (sheet + revision, section + article), the conflict stated without argument, your suggested resolution, and separate schedule- and cost-impact statements.
  7. Never self-resolve a rated assembly, a life-safety element, or anything structural. Those go to the architect, the engineer of record, and often the AHJ.
  8. Do not build until you have the answer. Proceeding with a known conflict moves the cost from the owner's column to yours.

The six-pass review method

Pass What you do What it catches
1 Division 00 and 01, completely, first Obligations with a cost or a date that appear on no drawing
2 Drawings vs. specs, by assembly The highest-yield pass — quality/quantity conflicts
3 Disciplines vs. each other, at one location Geometric clashes and missing coordination
4 Schedules vs. plans, for count Missing rows = missing product, rating, and dollars
5 Details vs. sections, for continuity Air barrier, vapor retarder, and rated-line breaks — the two most expensive categories in the business
6 The seams Scope that falls between trades, disciplines, or furnish-and-install

The one-sentence rule

When two documents disagree, do not decide — determine which one your contract says governs, write down exactly what each says, price the difference, and put the question in writing before anyone touches it.