Cal-Royal CR3704 Saddle Thresh...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$33.26
Cal-Royal CR3704 Saddle Threshold, 1/4"H x 4"W, Heavy Duty Barrier-Free Design

Cal-Royal CR3704 Saddle Threshold, 1/4"H x 4"W, Heavy Duty Barrier-Free Design

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Model: CR370436-AL
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$33.26
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Cal-Royal CR3704 Saddle Threshold, 1/4"H x 4"W, Heavy Duty Barrier-Free Design

The Cal-Royal CR3704 is a heavy-duty saddle threshold from the CR 3700 Series, engineered at 1/4"H x 4"W to provide a durable, code-compliant transition at commercial door openings. Designed to be Handicap Accessible and Barrier Free over carpet, this threshold meets 3-Hr Positive Pressure requirements and complies with UL 10B, UL 10C, and UBC 7-2 (1997) standards. Available in Aluminum and Dark Bronze finishes, the CR3704 is built for demanding commercial applications where durability and accessibility compliance are essential.

Key Features

  • Threshold Dimensions: 1/4"H x 4"W profile designed for smooth, low-profile transitions at door openings.
  • Heavy Duty Construction: Built to withstand high-traffic commercial door applications with long-term durability.
  • Barrier-Free Accessibility: Handicap Accessible and Barrier Free over carpet, supporting ADA-oriented accessibility needs at threshold transitions.
  • Fire and Pressure Rated: Rated for 3-Hr Positive Pressure applications, suitable for fire-rated door assemblies.
  • Matched Fastener Sets: MIL finish thresholds are supplied with zinc plated screws, brass thresholds are supplied with brass screws, color anodized thresholds are supplied with screws plated to match, and stainless steel thresholds are supplied with stainless steel screws for a coordinated finish.
  • Finish Options: Available in Aluminum and Dark Bronze finishes to complement a range of commercial door and frame finishes.
  • Part of CR 3700 Series: Engineered within the Cal-Royal CR 3700 Series of saddle thresholds for consistent performance and compatibility across the product line.

Certifications & Compliance

  • 3-Hr Positive Pressure Rated
  • Meets UL 10B
  • Meets UL 10C
  • Meets UBC 7-2 (1997)
  • Handicap Accessible, Barrier Free over carpet

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Series: CR 3700 Series
  • Product Subgroup: Door Thresholds
  • Product Type: Thresholds - Saddle
  • Commercial/Residential: Commercial
  • Product Model: CR3704
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal CR3700?

Cal-Royal CR 3700 Series thresholds deliver heavy-duty, code-compliant performance backed by 3-Hr Positive Pressure and UL 10B/10C ratings, making them a dependable choice for fire-rated commercial door assemblies. With barrier-free accessibility and matched fastener sets across finish options, the CR3704 is engineered for reliable, professional-grade performance in demanding commercial environments.

Product Specs

Subcategory:
Thresholds
Product Group:
Door Trim and Accessories
Series:
CR 3700 Series
Product Subgroup:
Door Thresholds
Product Type:
Thresholds - Saddle
Commercial/Residential:
Commercial
Product Model:
CR3704
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Cal-Royal CR370436-AL – Frequently Asked Questions

1) Will the Cal-Royal CR3704 threshold work on a fire-rated door opening?
Yes. The CR3704 saddle threshold is rated for 3-Hr Positive Pressure and meets UL 10B, UL 10C, and UBC 7-2 (1997), so it can be used under fire-rated commercial door assemblies.
2) For a fire-rated door assembly, does the Cal-Royal CR3704 or the Pemko 272 carry the ratings?
The CR3704 is rated for 3-Hr Positive Pressure and meets UL 10B, UL 10C, and UBC 7-2 (1997), which is what a fire-rated opening submittal typically calls for. The Pemko 272 Series is described as an ADA compliant flat saddle in heavy-duty aluminum, and the NGP 1013 saddle carries BHMA certification. If the drawing calls out positive pressure and UL 10B/10C at the threshold, the CR3704 is the one that states those ratings.
3) What finishes is the CR3704 available in, and do the screws match?
Two finishes are offered: Aluminum and Dark Bronze (DURO). Cal-Royal supplies fasteners to match the finish, MIL finish thresholds get zinc plated screws, color anodized thresholds get screws plated to match, brass gets brass screws, and stainless gets stainless screws.
4) Is a flat saddle threshold or an offset threshold right for my opening?
A flat saddle like the CR3704 sits level on the sill and gives a straight low transition, which is what you want when the finish floor is at the same height on both sides and you need a barrier-free crossing. An offset threshold steps between two different floor heights, for example an exterior slab lower than an interior floor. If that is your condition, the NGP 653 offset threshold at 1/2 inch by 5-1/2 inch is the shape to look at instead.
5) What are the alternatives to the CR3704 if I need a wider saddle?
The CR3704 is 4 inches wide. For a deeper bearing surface at the same 1/4 inch height, the Pemko 272 Series flat saddle is 1/4 inch by 6 inches, and the NGP 1013 saddle threshold is 1/4 inch by 10 inches in mill aluminum. All three keep the same low-profile crossing height, the difference is how much of the sill they cover.
6) Can I run the CR3704 over carpet at an interior opening?
Yes. Cal-Royal rates the CR3704 as Barrier Free over carpet, so it is intended to bridge a carpet-to-hard-surface transition at the door without creating a trip edge.
7) Is the CR3704 heavy enough for a high traffic entrance in a school or hospital?
It is a heavy duty commercial threshold, built for high-traffic door applications, and Cal-Royal lists office buildings, schools, healthcare, retail, industrial, multi-tenant residential, and government facilities as typical uses. It is a commercial product, not a residential one.
How fast can I get the Cal-Royal CR370436-AL delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cal-Royal CR370436-AL come with a warranty?
Absolutely. The Cal-Royal CR370436-AL is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cal-Royal CR370436-AL?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cal-Royal CR370436-AL from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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