NGP 325DKB 1/2" Half Saddle Th...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$144.22
NGP 325DKB 1/2" Half Saddle Threshold, Dark Bronze Finish

NGP 325DKB 1/2" Half Saddle Threshold with Dark Bronze Finish - 5" Wide ADA Compliant

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Model: 325DKB-36

In Stock (leaves warehouse same day if ordered before 3pm ET)

$144.22
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NGP 1/2" Half Saddle Threshold with Dark Bronze Finish - 5" Wide ADA Compliant

Professional Door Threshold Solution

The NGP 1/2" Half Saddle Threshold delivers professional-grade door transition performance with durable aluminum alloy 6063 construction in T5 temper. Measuring 5" wide x 1/2" tall with fluted top design, this threshold meets ADA compliance requirements when installed with the non-beveled edge flush with flooring or where no greater than 1/4" vertical rise occurs. The dark bronze finish provides lasting appearance for commercial applications.

Professional Features & Benefits

  • Precise Dimensions: 5" wide x 1/2" tall profile designed for standard door applications with optimal transition performance.
  • Heavy-Duty Construction: Aluminum alloy 6063 with T5 temper provides exceptional durability and corrosion resistance for long-term performance.
  • ADA Compliant Design: Meets accessibility requirements when installed with non-beveled edge flush with flooring or where no greater than 1/4" vertical rise occurs.
  • Fluted Top Surface: Textured surface design enhances slip resistance and provides secure footing during transitions.
  • Professional Installation: Includes #10 x 1-1/2" FH zinc plated wood screws for secure mounting with typical wall thickness of .250".
  • Durable Finish: Dark bronze finish provides attractive appearance and enhanced corrosion protection for demanding environments.
  • Lightweight Design: At 1.32 lbs./ft., the threshold offers easy handling during installation while maintaining structural integrity.

Technical Specifications

  • Department: Door Hardware

Professional Applications

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

Why Choose NGP Quality?

NGP threshold products deliver professional-grade reliability with aluminum alloy 6063 construction in T5 temper for demanding commercial applications. The precision-engineered 5" x 1/2" profile with fluted top surface ensures ADA compliance and optimal performance where dependable door transitions are essential.

Manufacturer Resources

NGP Threshold Catalog

Product Specs

Department:
Door Hardware
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Thresholds
Product Type:
Thresholds - Saddle
Subcategory:
Thresholds

NGP 325DKB-36 – Frequently Asked Questions

1) Is the NGP 325 half saddle threshold ADA compliant?
The 325DKB meets ADA requirements when it's installed with the non-beveled edge flush to the flooring, or anywhere the vertical rise ends up no greater than 1/4 inch. The half saddle profile is 1/2 inch tall overall, so if you set it on top of finished flooring without recessing that non-beveled side, you're over the 1/4 inch unbeveled rise and the install no longer meets the requirement. The fluted top surface adds slip resistance underfoot.
2) What lengths does the NGP 325 dark bronze threshold come in?
Three cut lengths: 36 inch, 72 inch, and 96 inch. A 36 inch piece covers a standard single door opening; the 72 and 96 inch lengths are for pairs, or for cutting down to multiple openings from one stick. Aluminum 6063-T5 cuts cleanly with a miter saw and a non-ferrous blade, so ordering long and trimming to the frame is normal practice.
3) Does the NGP 325 threshold come with fasteners, or do I need to buy screws separately?
Screws are included: #10 x 1-1/2 inch flat head zinc plated wood screws. Those are wood screws, so they land in a wood subfloor or wood sill as supplied. Over concrete you'll want your own anchors, since the supplied fasteners won't hold in slab. Wall thickness of the extrusion is .250 inch, which is what the flat head countersinks into.
4) Is the NGP 325 threshold fire rated for a labeled opening?
Fire rating isn't something to assume from the extrusion. If your opening carries a label and the threshold has to be part of the rated assembly, look at the Cal-Royal CR3700 Series, which carries a 3-hour positive pressure fire rating, or the Cal-Royal CR2000 Series saddle threshold, which is listed as fire rated and ADA compliant. Both are saddle thresholds in the same family of application.
5) I need a fire rated saddle threshold - can I use the NGP 325DKB?
The NGP 325DKB is specified as an ADA compliant half saddle when installed with the non-beveled edge flush with flooring or where no greater than 1/4 inch vertical rise occurs, and it is a commercial-grade aluminum 6063-T5 extrusion. When the opening carries a fire label and the threshold has to match it, look at the Cal-Royal saddle threshold lines instead: the CR 2000 Series is a fire rated and ADA compliant saddle threshold, and the CR 3700 Series carries a 3-hour positive pressure fire rating. On a rated opening the AHJ will want the threshold that names the rating, so specify the Cal-Royal series and use the 325DKB on non-rated interior and exterior transitions.
6) What is a half saddle threshold and when should I use one instead of a full saddle?
A half saddle like the NGP 325 is beveled on one side only, with the other edge left square. It's the piece to use when you're transitioning at a door where one side of the opening is a finished floor you can butt or recess into, rather than crowning over a sill on both sides. A full saddle bevels both directions and is the choice when the threshold sits proud of the floor on both sides of the door. At 5 inches wide by 1/2 inch tall, the 325 covers the gap under the door and the joint between two flooring materials in one piece.
7) For a property manager replacing worn saddles across a building, how do the Cal-Royal CR2000 and the NGP 325DKB differ?
Both are saddle thresholds for commercial door openings. The NGP 325DKB is one defined profile - 5 inches wide, 1/2 inch tall, fluted top for slip resistance, dark bronze finish - stocked in 36 inch, 72 inch and 96 inch lengths, so you cut to each opening from a known part. The Cal-Royal CR 2000 is a series of saddle thresholds described as fire rated and ADA compliant, meaning you pick the profile within the series that matches each opening. If you are standardizing hallway and entry saddles on one look and one height, the single 325DKB profile in dark bronze is the simpler fleet decision; if some of your openings are labeled, the CR 2000 Series covers those.
8) Is the Pemko 272 a drop-in replacement for an NGP 325DKB that is already installed?
Not a drop-in. The NGP 325DKB is a half saddle at 5 inches wide and 1/2 inch tall with a fluted top surface, while the Pemko 272 Series is a flat saddle at 1/4 inch x 6 inches. Swapping to the Pemko leaves a wider footprint to cover on the floor and drops the height by 1/4 inch, which opens a gap under an existing door bottom that was set to the 1/2 inch saddle. It also changes the surface texture, since the 325DKB relies on its fluted top for footing. Replace like-for-like with the 325DKB unless you are also re-setting the door bottom seal.
9) Will the dark bronze finish hold up outside on an exterior entrance?
The 325DKB uses 6063 aluminum in T5 temper with a dark bronze finish, and aluminum 6063 is a standard architectural extrusion alloy with good corrosion resistance, so it holds up at an exterior door. The finish is a darker anodized-look bronze meant to coordinate with bronze frames and hardware rather than bright aluminum. Note that foot traffic will wear the high points of the fluting over time on a heavy-use entry, which is normal for any finished threshold.
10) Is this threshold rated for commercial traffic or is it a residential part?
It's a commercial-duty part. NGP lists the 325 for commercial use, and the typical applications are office buildings, schools, healthcare facilities, retail, industrial and warehouse space, multi-tenant residential, and government buildings. The .250 inch wall on the extrusion is what carries that traffic without deflecting under the screw heads.
How fast can I get the NGP 325DKB-36 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 NGP 325DKB-36 come with a warranty?
Absolutely. The NGP 325DKB-36 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 NGP 325DKB-36?
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 NGP 325DKB-36 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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