Services all contractors need since 2010

Doors and Windows Cheat Page

Doors and Windows Cheat Page

🚪🪟 Doors & Windows Cheat Sheet

Key references for plan reading, estimating, and installation of doors & windows.

🔎 Plan Symbols

  • Door swing arc: curve indicates swing direction.
  • Window tag: rectangle with mark/number (W1, W2, etc.).
  • Door tag: circle or hexagon with ID (D1, D2, etc.).
  • Fixed vs. operable window: hatch pattern or arrow indicator.
  • Storefront/glass walls: thick continuous line with mullion grid.

📐 Takeoff & Estimating Basics

  • Door schedule: lists size, type, material, fire rating, hardware set.
  • Window schedule: lists dimensions, glazing type, frame material.
  • Rough opening (RO): usually 2" wider × 2" taller than unit size (varies by manufacturer).
  • Takeoff method: count tags in schedule, verify with floor plans & elevations.
  • Hardware sets: match to doors (closers, locks, panic bars).

⚡ Quick Reference

  • 🚪 Standard interior door: 3'-0" × 6'-8".
  • 🚪 ADA door clearance: 32" min clear width (typically 36" door).
  • 🪟 Egress window: 5.7 sq ft clear opening (5.0 sq ft at grade floor).
  • 🪟 Window U-Value: lower = better insulation (energy code check).
  • 🚪 Fire-rated doors: 20, 45, 60, 90 min — confirm with code requirements.

📝 Self Test

  1. What does a curved arc drawn from a door symbol represent?
  2. How do you determine the rough opening size for a door?
  3. What is the minimum ADA clear width required for doors?
  4. What is the required clear opening size for an egress window above grade?
  5. Where do you find details about glazing type for windows?

(Answers: 1) Door swing direction, 2) Add ~2" width/height to unit, 3) 32", 4) 5.7 sq ft, 5) Window schedule)