Door Size Calculator

Results

Door Specifications:

  • Rough Opening Width: 0 inches
  • Rough Opening Height: 0 inches
  • Floor Clearance: 0 inches
  • Required Jamb Depth: 0 inches
  • Hardware Location: 0 inches from bottom

Dimensional Standards

  • Clearance Requirements Passage width: 32" min ADA. Head height: 80-84". Threshold height: 0.5" max. Strike edge: 18" clear. Maneuvering space: 60" diameter.
  • Size Categories Interior: 24-36" × 80". Exterior: 30-72" × 80-96". Fire rated: +0/-1/8". Commercial: 36-48" × 84-120". ADA compliant: 36" min clear.
  • Tolerances Width: ±1/16". Height: ±1/8". Diagonal: ±1/8". Warp: ±1/4". Edge straightness: ±1/16". Hardware locations: ±1/32".

Performance Ratings

  • Structural Performance Design pressure: ±40 psf. Impact resistance: Grade 40. Cycle testing: 1,000,000 cycles. Stiffness class: FE-5/FE-8. Core density: 28-32 lb/ft³.
  • Environmental Control Air infiltration: 0.3 cfm/ft². Water penetration: 15 min @ 2.86 psf. Thermal transmission: U-0.37. Solar heat gain: 0.25. Condensation resistance: 57.
  • Security Standards Forced entry: Grade 40. Lock throw: 1" min. Hinge strength: 400 lbs. Impact resistance: Level 3. Bullet resistance: Level 1-3.

Material Specifications

  • Core Construction Density variation: ±2 lb/ft³. Internal bond: 100 psi min. Screw holding: 300 lbs face. Linear expansion: 0.25% max. Thermal resistance: R-2.5/inch.
  • Face Materials Thickness: 1/16-1/8". Impact resistance: 400 in·lbs. Wear resistance: 1000 cycles. Stain resistance: Class 5. Chemical resistance: 24 hr exposure.
  • Edge Treatment Adhesion strength: 150 psi. Moisture resistance: 24 hr soak. UV stability: 1000 hrs. Impact resistance: 50 impacts. Wear index: <0.08.

Installation Parameters

  • Hardware Integration Hinge size: 4-4.5". Backset: 2.75". Strike plate: 4-7/8". Bore diameter: 2-1/8". Edge bore: 1". Reinforcement: 14 gauge.
  • Environmental Controls Temperature range: 50-90°F. Relative humidity: 25-55%. Acclimation: 48 hrs min. Storage: flat position. Handling: vertical orientation.
  • Quality Assurance Warranty period: 1-5 years. Inspection points: 12 min. Documentation: shop drawings. Testing: ANSI A250.4. Certification: WHI/UL/ITS.

Understanding Door Sizes

Proper door sizing ensures smooth operation and proper fit.

  • Door Types Different uses need different sizes.
  • Standard Sizes Common dimensions available.
  • Clearances Space needed for operation.
  • Hardware Impact on dimensions.

Installation Tips

Level

Ensure proper alignment.

Plumb

Check vertical alignment.

Square

Verify corner angles.

Shim

Use proper spacing.

Door Types Guide

  • Interior Standard residential doors.
  • Exterior Weather-resistant entry doors.
  • Patio Sliding or French doors.
  • Garage Vehicle access doors.

Best Practices

  • Measuring Check multiple points.
  • Clearance Allow for flooring.
  • Hardware Plan locations early.
  • Weather Consider expansion.