NGP 323 1/2" Half Saddle Thres...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$53.10
NGP 323 1/2" Half Saddle Threshold with Milled Aluminum Finish - 3" Wide ADA Compliant

NGP 323 1/2" Half Saddle Threshold with Milled Aluminum Finish - 3" Wide ADA Compliant

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Model: 323-36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$53.10
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NGP 1/2" Half Saddle Threshold with Milled Aluminum Finish - 3" Wide ADA Compliant

Professional Door Threshold Solution

The NGP 1/2" Half Saddle Threshold delivers professional-grade door sealing performance with durable aluminum alloy 6063, T5 temper construction. Measuring 3" wide x 1/2" tall with a 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 mill finish aluminum construction with .109" typical wall thickness provides long-lasting durability at .56 lbs./ft. weight.

Professional Features & Benefits

  • Precise Dimensions: 3" wide x 1/2" tall profile designed for standard door applications with optimal clearance and sealing performance.
  • ADA Compliant Design: Meets accessibility requirements when installed with non-beveled edge flush with flooring or with no greater than 1/4" vertical rise.
  • Heavy-Duty Construction: Aluminum alloy 6063, T5 temper provides exceptional durability and corrosion resistance for long-term performance.
  • Fluted Top Surface: Textured surface design enhances traction and reduces slip hazards while maintaining professional appearance.
  • Lightweight Installation: At .56 lbs./ft. weight with .109" typical wall thickness, provides easy handling without compromising structural integrity.
  • Complete Hardware Included: #10 x 1-1/2" FH zinc plated wood screws included for immediate installation readiness.
  • Mill Finish Durability: Natural aluminum mill finish provides corrosion resistance and accepts paint or anodizing for custom applications.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Product Type: Door Shoes
  • Subcategory: Gaskets & Weatherstripping

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, T5 temper construction engineered for demanding commercial applications. The precision-manufactured 3" x 1/2" profile with fluted top design ensures consistent ADA compliance and long-term performance where dependable door sealing is essential.

Manufacturer Resources

NGP Threshold Catalog

Product Specs

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

NGP 323-36 – Frequently Asked Questions

1) What lengths does the NGP 323 threshold come in?
Five cut lengths: 36, 42, 44, 45 and 72 inches, all in mill aluminum. The 36 inch covers a standard single door, 72 inches covers a pair of 3-0 doors or a wide opening in one piece. The 42, 44 and 45 inch pieces are there for oversized single openings so you are not field splicing.
2) Will a 3 inch wide saddle threshold be wide enough for my door opening?
The 323 is 3 inches wide, which is a half saddle: it sits under the door and to one side, not spanning a full frame depth. That works where you are covering a floor transition or sealing against a door bottom sweep on a single door. If you need to cover the full frame depth or a wider gap in the floor, a 6 inch wide saddle like the Pemko 272 is the wider option.
3) Do I need to buy screws or anchors separately for the NGP 323 threshold?
Screws come with it: #10 x 1-1/2 inch flat head zinc plated wood screws. That fastener is sized for wood subfloor. Setting it on concrete means supplying your own anchors, the supplied wood screws will not hold in a slab.
4) Is the NGP 323 saddle threshold fire rated?
For a fire rated opening, look at a threshold that carries the rating outright. Cal-Royal's CR3700 saddle series is listed with a 3-hour positive pressure fire rating, and the CR2000 saddle series is described as fire rated and ADA compliant. Match the threshold to what the door assembly is rated for.
5) Will the NGP 323 work under a door with a bottom sweep or door shoe?
Yes, that is the common pairing. The 1/2 inch tall saddle raises the sealing surface so a sweep or shoe on the door bottom has something flat to close against, and the fluted top keeps the contact consistent across the width. Set the door undercut so the sweep meets the 1/2 inch height without dragging.
6) For a facility standardizing thresholds across both rated and non-rated openings, what should be paired with the NGP 323?
The NGP 323 covers non-rated commercial openings with a 3 inch wide by 1/2 inch tall half saddle in 6063-T5 aluminum, mill finish, fluted top, in 36, 42, 44, 45 and 72 inch lengths. For the rated openings in the same facility, the Cal-Royal CR2000 series is a saddle threshold with a fire rated and ADA compliant design, and the CR3700 series carries a 3-hour positive pressure fire rating. Keeping all three in a saddle profile means the walking surface and the floor detail read the same from door to door while each opening gets the threshold its rating calls for.
7) Can a Cal-Royal CR3700 threshold be swapped in for an NGP 323?
They are both saddle thresholds, but they are not the same part. The NGP 323 is a half saddle with a 3 inch wide by 1/2 inch tall profile in 6063-T5 aluminum, supplied with #10 x 1-1/2 inch flat head zinc plated wood screws. The Cal-Royal CR3700 is a saddle threshold series carrying a 3-hour positive pressure fire rating. If the opening is a rated door assembly, the CR3700 is the one specified for that condition; if it is a non-rated commercial opening, the 323 covers it. Confirm the width and height of the existing threshold and the substrate before ordering either, since the anchor pattern and floor cut will follow the profile you choose.
8) Can I paint or anodize a mill finish aluminum threshold to match my other openings?
Mill finish is raw aluminum, and the 323 takes paint or anodizing for a custom match. If you are standardizing a building and want the finish to arrive already matched rather than done in the field, that is a factory finish decision, not something you do to a mill piece after it ships.
9) Is the top of the NGP 323 threshold slip resistant?
The top is fluted, a textured ribbed surface that adds traction underfoot. For a healthcare or school entrance where the floor gets wet, that fluting is doing the anti-slip work, not a coating that wears off.
How fast can I get the NGP 323-36 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 323-36 come with a warranty?
Absolutely. The NGP 323-36 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 323-36?
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 323-36 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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