Choosing the Right Exterior Door Threshold for a Better Seal
A properly sealed exterior door starts at the bottom. Exterior door thresholds play an important role in protecting your home from drafts, water infiltration, and everyday wear. They also create a clean, finished 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 exterior door swings inward or outward, choosing the right threshold can improve both the performance and appearance of your entryway.
Inswing vs. Outswing Thresholds
Before selecting a threshold, it is important to understand 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.
Once you know the swing direction, measure your door opening width carefully before choosing a threshold or extender. Accurate measurements help ensure the best fit and a proper seal.
Key Features of Our Exterior Door Thresholds
Our exterior thresholds are built with materials designed to stand up to moisture, weather exposure, and long-term exterior use.
Composite Adjustable Cap
Each threshold includes a composite adjustable cap that provides a stable top surface and allows for fine-tuning during installation. The cap can be raised or lowered to align with 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 deliver long-lasting performance in exterior applications.
Oversized for a Better Fit
These thresholds are cut oversized so they can be trimmed on site. This allows installers to achieve a more accurate fit for replacement projects or new door installations.
Why Choose Hartford Building Products Exterior Thresholds?
Our exterior door thresholds are a dependable choice for both new installations and replacement projects.
They are made with long-lasting materials, including composite caps, composite bases, and anodized aluminum designed to resist moisture, wear, and daily use. 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 are suitable for many common residential exterior door openings.
Available Finishes
Hartford Building Products exterior thresholds are available in the following finishes:
Mill Extruded Aluminum — silver color
Dark Bronze
Inswing Threshold Options
Inswing thresholds are designed for exterior doors that open into the building.
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, confirm the swing direction of your door, and trim the threshold as needed during installation for the best fit.
A high-quality exterior door threshold can help improve comfort, protect against moisture, and give your entryway a clean, finished look.