Exterior Inswing and Outswing Door Thresholds
A properly sealed exterior door starts at the bottom. Exterior door thresholds help protect your home from drafts, water infiltration, and everyday wear while creating a clean transition between indoor and outdoor spaces.
At Hartford Building Products, our exterior door thresholds and extenders are designed for durability, weather protection, and easy installation. Whether your door swings inward or outward, choosing the right threshold helps improve the performance and appearance of your entryway.
Inswing vs. Outswing Thresholds
Before selecting a threshold, it is important to know how your door operates.
Inswing thresholds are used for doors that open into the building.
Outswing thresholds are used for doors that open toward the outside.
Be sure to measure your opening width before choosing a threshold or extender to ensure the best fit.
Key Features
Our exterior thresholds are built with materials designed to stand up to moisture, weather, and long-term exterior use.
Composite Adjustable Cap
Each threshold includes a composite adjustable cap that provides a stable top surface and can be fine-tuned during installation. The cap can be raised or lowered to match the bottom seal of the door, helping create a tighter weather seal.
Composite Base
The composite base is engineered to resist moisture, prevent rot, and provide long-lasting performance in exterior applications.
Oversized for a Better Fit
These thresholds are cut oversized so they can be trimmed on site for a more accurate installation.
Why Choose These Thresholds?
These exterior door thresholds are a dependable choice for both replacement and new installations.
They are made with long-lasting materials, including composite caps, composite bases, and anodized aluminum that resist moisture and wear. The adjustable design allows for on-site trimming and fine-tuning, while the threshold works together with door sweeps and weatherstripping to help reduce drafts and improve sealing performance.
With multiple size options available, these thresholds fit many common residential exterior door openings.
Available Finishes
Thresholds are available in:
Mill Extruded Aluminum — silver color
Dark Bronze
Inswing Threshold Options
Inswing Thresholds with Composite Cap
Available lengths:
36 inches
72 inches
Available widths:
4 9/16 inches
5 5/8 inches
7 13/16 inches
Inswing Thresholds with Composite Walnut Cap
Available length:
60 inches
Available sizes:
5 5/8 inches x 60 inches
7 13/16 inches x 60 inches
Outswing Threshold Options
Outswing thresholds are designed for exterior doors that open toward the outside.
Available width:
5 5/8 inches
Available lengths:
36 inches
72 inches
Choose the Right Threshold for Your Door
Whether you need an inswing or outswing threshold, selecting the correct size and style is essential for a proper seal. Measure your opening carefully, choose the correct swing direction, and trim the threshold as needed during installation for the best fit.