Complete Door Frame Height Chart & Buying Guide: Standard Sizes, Casing Types, and Custom Fits
By Alexander Ross
Different door styles, architectural heights, and exterior thresholds require distinct vertical rough openings. Exterior doors demand specialized planning because integrated sills add height at the base, while bifold units require unique head-track hardware hanging clearances.
| Door Type & Nominal Size | Actual Frame Outer Height | Standard Rough Opening Height | Key Installation Consideration |
|---|---|---|---|
| Standard Interior Passage (6/8) | 81-5/8 in | 82-1/2 in | Leaves 1/2 in to 3/4 in undercut above subfloor for flooring finishes. |
| Tall Interior Passage (7/0) | 85-5/8 in | 86-1/2 in | Common in modern homes with 9-foot ceilings; needs rigid jack studs. |
| Grand Interior Passage (8/0) | 97-5/8 in | 98-1/2 in | Standard for 10-foot ceilings; heavy solid-core slabs require 3 to 4 hinges. |
| Standard Exterior Entry (6/8) | 81-3/4 in to 82 in | 82-1/2 in to 83 in | Accounts for thick aluminum or composite thermal sill profiles. |
| Interior Bifold Closet (6/8) | 80-3/4 in to 81 in | 82 in to 82-1/2 in | Overhead track bracket requires adequate backing at the head jamb. |
| Interior Pocket Door (6/8) | 83 in to 84 in (Kit Height) | 84-1/2 in to 85 in | Hardware cassette and top track assembly demand substantial header height. |
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
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