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How to read a door schedule

Helonic is an AI construction drawing analysis platform for people reading door schedule during plan review.

Decode door schedules to order the right doors with the right hardware

The door schedule is the central reference for all door information: sizes, materials, fire ratings, and hardware. Understanding how to read it correctly prevents ordering errors and installation problems. Here's a column-by-column breakdown.

What does a door mark connect on the drawings?

The door mark connects the schedule to the floor plan:

Common Door Mark Formats

Room-based: 101, 102, 103 (door number matches room it opens into)

Room + Letter: 101A, 101B (multiple doors into same room)

Sequential: D-01, D-02 (doors numbered independently of rooms)

Always verify the door mark on the floor plan matches the schedule. Mismatches are a common source of errors.

How are door dimensions shown on the schedule?

Door sizes are typically shown as Width x Height x Thickness:

3070
3'-0" wide x 7'-0" tall (standard)
3080
3'-0" wide x 8'-0" tall
3'-0" x 7'-0" x 1-3/4"
With thickness specified
PR 6070
Pair of doors, 6'-0" total width x 7'-0" tall

How are door and frame types specified?

Door and frame materials are specified separately:

Door Types

WD: Wood Door

HM: Hollow Metal

AL: Aluminum

GL: Glass

FRP: Fiberglass

Frame Types

HMF: Hollow Metal Frame

WDF: Wood Frame

ALF: Aluminum Frame

KD: Knock-Down Frame

WG: Welded Frame

What fire-rating information belongs on a door schedule?

Fire-rated doors have specific requirements:

20 min
Corridor doors, smoke partitions
45 min
1-hour rated walls
60 min
1-hour rated walls (where required)
90 min
2-hour rated walls
3 hr
High-hazard separations
Important
Fire-rated doors require matching rated frames and specific hardware. The door, frame, and hardware are a rated assembly, so all components must be compatible.

How do you read a door hardware set?

Hardware is typically specified by set number that references a hardware schedule:

HW-1
Passage set (no lock)
HW-2
Privacy set (bathroom lock)
HW-3
Classroom lock (keyed outside)
HW-4
Storeroom lock (always locked)
HW-5+
Specialty functions, closers, etc.

Always check the full hardware schedule for complete set contents including hinges, closers, stops, and seals.

What special requirements appear on a door schedule?

Look for additional columns or remarks indicating:

  • Vision panels (lite) size and location
  • Louvers for ventilation
  • Acoustic (STC) ratings
  • Lead lining for X-ray rooms
  • Weatherstripping for exterior doors
  • Thresholds and floor conditions
  • Automatic operators

How do you verify a door schedule against the floor plans?

Cross-check the schedule against the plans:

  • Every door tag on the plan should appear in the schedule
  • Every door in the schedule should appear on a plan
  • Door swing direction should match plan (in/out, left/right)
  • Door widths should fit the openings shown
  • Fire-rated doors should be in fire-rated walls

Keep exploring

Related references and guides for schedules and openings.

How to Read a Window Schedule

Understand window schedules for ordering and installation.

The Door Schedule Disaster

Why coordination errors happen and how to prevent them.

Fire Protection Drawing Review

Checking fire-rated assemblies including doors and frames.

AI vs. Manual Drawing Review

Compare automated and manual approaches to schedule checking.

Catch door schedule errors automatically

Comparing door schedules to floor plans manually is tedious and error-prone. Helonic's AI can automatically verify that every door on your plans matches the schedule.