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3.5-Inch Door Hinges for Interior & Entry Doors
3.5-inch door hinges provide a compact hinge size for compatible residential and other supported door applications. The current Coastal Hardware Store collection consists of 3.5-inch x 3.5-inch hinges with options for square, 1/4-inch radius, and 5/8-inch radius corners, along with residential-duty, heavy-duty, plain-bearing, ball-bearing, and selected spring-hinge configurations.
Coastal Hardware Store carries 3.5-inch door hinges from Emtek, Deltana, and Baldwin Estate. Current products include steel and solid-brass constructions, conventional butt hinges, a distinctive Square Barrel design, and numerous finishes for coordinating with knobs, levers, handlesets, deadbolts, and other visible door hardware. Because screw patterns, hinge thickness, bearing construction, corner preparation, and intended applications vary by product, compare the complete specifications before ordering. For additional sizes, browse our complete door hinge collection, 4-inch door hinges, or 4.5-inch door hinges.
Why Choose 3.5-Inch Door Hinges?
A 3.5-inch hinge can be a practical choice when the door and frame are already prepared for that size or when the project's door specifications call for a 3.5-inch x 3.5-inch hinge. Size is only one part of the selection process—the correct corner style, duty level, bearing construction, material, and screw pattern are equally important.
- Compact 3.5-inch x 3.5-inch format: Every product in this collection is organized around the same nominal hinge height and width, making it easier to narrow a replacement search by size.
- Square and radius corners: Current products include square, 1/4-inch radius, and 5/8-inch radius configurations for different door and frame mortises.
- Residential and heavy-duty choices: The assortment includes hinges intended for typical residential conditions as well as heavier-duty products for more demanding compatible doors.
- Plain- and ball-bearing options: Shoppers can choose conventional plain-bearing hinges or selected ball-bearing designs where reduced hinge friction is preferred.
- Steel and solid-brass products: Verified current listings include both materials, with availability depending on manufacturer and hinge family.
- Broad finish selection: Current products span brass, nickel, chrome, black, bronze, patina, unlacquered, and other manufacturer-specific finish families.
Types of 3.5-Inch Door Hinges Available
Residential-Duty 3.5-Inch Hinges
Residential-duty hinges are intended for compatible doors with typical household weight and usage requirements. Current Emtek products include 3.5-inch residential-duty steel and solid-brass plain-bearing hinges, while Deltana offers residential 3.5-inch hinges in several corner configurations, including selected ball-bearing models. Residential-duty should not be interpreted as a universal door-weight rating; follow the specifications for the exact hinge and door.
Heavy-Duty 3.5-Inch Hinges
Heavy-duty 3.5-inch hinges use a more substantial construction for applications that require greater support or experience more demanding use. Current Coastal Hardware Store options include heavy-duty steel and solid-brass Emtek hinges along with heavy-duty Deltana products. Door width, weight, thickness, frequency of operation, hinge quantity, and frame construction should all be considered before selecting a heavy-duty hinge.
Square Corner 3.5-Inch Hinges
Square-corner hinges have sharp 90-degree leaf corners and are designed for a matching square-corner mortise. Current products include square-corner residential and heavy-duty hinges from Emtek and Deltana as well as the Baldwin Estate 1035 3.5-inch Square Corner Hinge. Match the existing mortise and screw pattern whenever possible to minimize door and frame modification.
1/4-Inch & 5/8-Inch Radius Hinges
Radius-corner hinges use rounded leaf corners rather than square corners. The current assortment includes both 1/4-inch and 5/8-inch radius options from Emtek and Deltana. A 1/4-inch radius has a tighter corner curve, while a 5/8-inch radius is broader. These preparations are not interchangeable without possible modification, so identify the existing radius before ordering replacement hinges.
Plain-Bearing & Ball-Bearing Hinges
Plain-bearing hinges use a conventional pin-and-knuckle construction without separate ball bearings. Ball-bearing hinges incorporate bearings within the knuckle assembly to reduce friction as the door moves. Both types are represented in the current 3.5-inch collection. Ball-bearing construction can be useful in more demanding applications, but it should be selected according to the door requirements rather than treated as a necessary upgrade for every opening.
Spring & Square Barrel Hinges
The current collection also includes more specialized 3.5-inch hardware. Emtek offers a plated-steel UL-listed spring hinge with 5/8-inch radius corners, which applies closing force rather than functioning only as a free-swinging hinge. The Emtek Square Barrel Heavy Duty Solid Brass Hinge uses a more architectural rectangular barrel profile and a different visual treatment from a conventional butt hinge. Use the technical information for these specialty products before substituting them for a standard hinge.
How to Choose the Right 3.5-Inch Door Hinge
Confirming that a hinge measures 3.5 inches is only the beginning. For the best replacement fit, compare the existing hinge and mortise in several areas before ordering.
- Verify both dimensions: Current products in this collection are 3.5 inches x 3.5 inches. Measure both the height and open hinge width of the existing hardware.
- Match the corner shape: Determine whether the mortise has square, 1/4-inch radius, or 5/8-inch radius corners. Matching the existing preparation can reduce modification.
- Compare the screw pattern: Hole quantity and placement can differ by manufacturer and hinge family. Do not assume that every 3.5-inch hinge will reuse every existing screw hole.
- Check hinge thickness: Residential-duty and heavy-duty hinges can use different leaf thicknesses. A replacement that is thicker or thinner than the existing hinge can affect how the door sits in the frame.
- Choose the bearing construction: Compare plain-bearing and ball-bearing products based on door weight, frequency of use, and manufacturer guidance.
- Review the complete door application: Exterior, heavy, high-use, self-closing, or specialty doors may require different hinge specifications even when the existing hinge measures 3.5 inches.
Materials, Styles & Finishes
Material construction varies throughout the collection. Verified current products include steel hinges from Emtek and Deltana and solid-brass hinges from Emtek and Baldwin Estate. Material should be checked on the individual product page because hinges with similar dimensions and finishes can use different base metals, thicknesses, pins, and bearing designs.
Most 3.5-inch hinges have a conventional architectural appearance, but the assortment includes meaningful design differences. Shoppers can choose plain-bearing or visible ball-bearing knuckles, square or rounded leaf corners, standard barrel shapes, and Emtek's distinctive Square Barrel solid-brass hinge.
Current collection filters include finishes such as Antique Brass, Antique Nickel, Brushed Brass, Brushed Chrome, Brushed Nickel, Flat Black, French Antique, Graphite Nickel, Lifetime Polished Brass, Lifetime Polished Nickel, Lifetime Satin Brass, Lifetime Satin Nickel, Medium Bronze Patina, Oil Rubbed Bronze, Paint Black, Pewter, Polished Brass, Polished Chrome, Polished Nickel, Satin Black, Satin Brass, Satin Nickel, Tumbled White Bronze, Unlacquered Brass, Venetian Bronze, and Vintage Brass.
Finish names and appearance vary between manufacturers. A brass, black, nickel, or bronze finish from Emtek may not visually match the similarly named Baldwin or Deltana finish. Living, patinated, and unlacquered finishes can also change naturally with handling and time, so coordinate using the exact manufacturer finish when consistency is important.
Featured 3.5-Inch Door Hinge Brands
The current collection includes Emtek, Deltana, and Baldwin Estate, with each manufacturer contributing different hinge constructions, corner preparations, finish families, and duty levels.
- Emtek: Emtek represents the largest portion of the collection and currently includes residential-duty and heavy-duty hinges in steel and solid brass, plain- and ball-bearing configurations, square and radius corners, a Square Barrel hinge, and selected spring hardware.
- Deltana: Current Deltana 3.5-inch products include residential and heavy-duty steel hinges with square, 1/4-inch radius, and 5/8-inch radius corner options, including selected ball-bearing configurations.
- Baldwin Estate: Baldwin Estate is represented by the current 1035 3.5-inch x 3.5-inch Square Corner Hinge, a solid-brass product with a removable stainless-steel pin and multiple Baldwin finish choices.
Installation & Compatibility
Before removing the existing hinge, measure the height, width, corner shape, leaf thickness, and screw pattern. If possible, compare the old hinge directly with the dimensional drawing for the replacement. Matching only the 3.5-inch size does not guarantee a direct fit.
Emtek's current 3.5-inch residential steel hinge family uses six screw holes per hinge in an arc pattern, while other manufacturers and hinge types can use different layouts. Reusing existing holes may therefore depend on the exact product. Where screw holes do not align, the door or frame may require appropriate preparation rather than forcing screws into unsuitable locations.
Corner preparation is another major compatibility point. A square-corner hinge can leave gaps in a radius mortise, while a radius hinge may not seat correctly in an unmodified square-corner mortise. Likewise, 1/4-inch and 5/8-inch radius corners have different curves. Match the existing mortise whenever a straightforward replacement is the goal.
Specialty hinges require additional attention. Heavy-duty models can use thicker leaves and larger screws, while spring hinges require product-specific installation and adjustment. A UL listing on an individual spring hinge should not be interpreted as a rating for the entire door assembly. For fire-rated, commercial, oversized, or otherwise regulated openings, confirm the complete hardware specification before ordering.
Shipping & Warranty Information
- Shipping: Fulfillment varies by product. Coastal Hardware Store's current shipping policy states that Quick Ship products usually leave the warehouse in 2-3 business days, while other products average 5-7 business days unless another estimate appears on the individual product page. Current 3.5-inch hinge listings include examples in both time frames. Orders of $100 or more qualify for free standard ground shipping within the contiguous 48 states and Washington, D.C. View Shipping Policy.
- Warranty: No single warranty applies to every 3.5-inch hinge in this multi-brand collection. Material, workmanship, finish coverage, warranty duration, purchaser eligibility, and exclusions vary among Emtek, Deltana, and Baldwin Estate. Review the individual product page and current manufacturer warranty for the exact hinge and finish before ordering.
Frequently Asked Questions About 3.5-Inch Door Hinges
What size are the hinges in this collection?
The current collection consists of hinges identified as 3.5 inches x 3.5 inches. The nominal size does not identify every other specification, so corner shape, thickness, screw pattern, duty level, material, and bearing type should also be checked.
What is the difference between square and radius 3.5-inch hinges?
Square-corner hinges have sharp 90-degree leaf corners. Radius hinges have rounded corners designed to fit rounded mortises. The current collection includes both 1/4-inch and 5/8-inch radius options in addition to square corners.
What is the difference between plain-bearing and ball-bearing 3.5-inch hinges?
A plain-bearing hinge uses a conventional pin rotating within the hinge knuckles without separate ball bearings. A ball-bearing hinge incorporates bearings in the knuckle assembly to reduce friction. The best choice depends on the door, duty requirements, usage, and manufacturer's product specifications.
Are all 3.5-inch hinges interchangeable?
No. Hinges with the same 3.5-inch x 3.5-inch dimensions can have different corner shapes, screw patterns, thicknesses, materials, bearing construction, pins, and intended applications. Compare the complete specification before replacing an existing hinge.
Can 3.5-inch hinges be used on exterior doors?
Some can, when the specific hinge is intended for the door and environment. For example, Emtek identifies representative residential-duty hinges as suitable for supported interior and exterior residential doors. Exterior suitability should still be confirmed for the exact material, finish, door weight, usage level, and manufacturer.
How do I know if I need residential-duty or heavy-duty hinges?
Consider the door's weight, width, thickness, frequency of use, number of hinges, and manufacturer recommendations. Residential-duty products are intended for typical lower-stress residential applications, while heavy-duty hinges are designed for more demanding compatible doors. The 3.5-inch size alone does not determine the correct duty level.
Shop 3.5-Inch Door Hinges at Coastal Hardware Store
Coastal Hardware Store offers 3.5-inch door hinges for interior doors, residential entries, renovations, replacement projects, and other compatible openings. Compare Emtek, Deltana, and Baldwin Estate hinges by square or radius corner preparation, residential or heavy-duty construction, plain or ball bearing, material, finish, and installation requirements.
If you need help matching an existing hinge, identifying a 1/4-inch or 5/8-inch radius, comparing screw patterns, or deciding between residential-duty, heavy-duty, plain-bearing, and ball-bearing hardware, our team can help you review the available options before ordering. Contact us at support@coastalhardwarestore.com or call us at 561-808-2588.