Exterior Door Sizes
Exterior doors are available in different widths and heights depending on the building, entry configuration, product type, and project requirements. This page provides a general reference for common nominal exterior door sizes.
Common Exterior Door Sizes
| Nominal Size | Width | Height |
|---|---|---|
| 30 × 80 | 30 in | 80 in |
| 32 × 80 | 32 in | 80 in |
| 34 × 80 | 34 in | 80 in |
| 36 × 80 | 36 in | 80 in |
| 36 × 84 | 36 in | 84 in |
| 36 × 96 | 36 in | 96 in |
Common Exterior Door Widths
Exterior door widths vary by the type of entry system and the specific product. A 36-inch nominal width is commonly available for single exterior door products.
The nominal size is a reference measurement. The actual door slab, frame, threshold, and complete prehung unit may have different dimensions.
Exterior Door Heights
80-inch doors are widely available, while taller exterior doors such as 84-inch and 96-inch heights are also offered for certain designs and applications.
Product availability and exact dimensions vary by manufacturer. Always confirm the specifications for the particular door being considered.
Exterior Door Rough Openings
The rough opening is the framed opening prepared for installation. Its dimensions are not necessarily identical to the nominal door size.
Exterior door rough opening requirements depend on the specific prehung unit, frame, construction, and manufacturer's installation instructions.
Exterior Door Sizes in Millimeters
| Nominal Size | Approx. Width | Approx. Height |
|---|---|---|
| 30 × 80 | 762 mm | 2032 mm |
| 32 × 80 | 813 mm | 2032 mm |
| 34 × 80 | 864 mm | 2032 mm |
| 36 × 80 | 914 mm | 2032 mm |
| 36 × 84 | 914 mm | 2134 mm |
| 36 × 96 | 914 mm | 2438 mm |
Popular Exterior Door References
Exterior Door Size FAQ
What is a common exterior door width?
A 36-inch nominal width is commonly available for single exterior doors, although other widths are also available.
What is a common exterior door height?
80 inches is a common nominal height, while 84-inch and 96-inch products are also available.
Does the nominal door size equal the actual unit size?
No. The actual slab and complete prehung unit can have different dimensions.
How do I determine the rough opening?
Check the manufacturer's installation specifications for the exact door unit rather than relying only on the nominal door size.