NGP 324 1/2" Half Saddle Thres...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$116.84
NGP-324 1/2" Half Saddle Threshold, Milled Aluminum Finish

NGP 324 1/2" Half Saddle Threshold with Milled Aluminum Finish - 4" Wide ADA Compliant Door Shoe

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Model: 324-36

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

$116.84
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NGP 1/2" Half Saddle Threshold with Milled Aluminum Finish - 4" Wide ADA Compliant Door Shoe

Professional Door Threshold Solution for Commercial Applications

The NGP 1/2" Half Saddle Threshold delivers professional-grade door sealing performance with durable aluminum alloy 6063, T5 temper construction. Measuring 4" wide x 1/2" tall with a fluted top design, this threshold provides reliable weather protection and smooth transitions. ADA compliant when properly installed, this threshold features typical wall thickness of .250" and weighs 1.20 lbs./ft. for easy handling and installation.

Professional Features & Benefits

  • Precise Dimensions: 4" wide x 1/2" tall profile designed for standard door applications with optimal clearance and sealing performance.
  • Heavy-Duty Construction: Aluminum alloy 6063, T5 temper provides exceptional durability and corrosion resistance for long-term commercial use.
  • ADA Compliance: Meets accessibility requirements when installed with non-beveled edge flush with flooring or where no greater than 1/4" vertical rise occurs.
  • Fluted Top Design: Textured surface provides enhanced grip and slip resistance for safe pedestrian traffic.
  • Professional Installation: Includes #10 x 1-1/2" FH zinc plated wood screws for secure mounting (Dark bronze screws supplied with DKB thresholds).
  • Lightweight Design: 1.20 lbs./ft. weight allows for easy handling and installation while maintaining structural integrity.
  • Mill Finish: Natural aluminum finish provides clean appearance and excellent corrosion resistance for various architectural 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 rated for demanding commercial applications. ADA compliant design ensures accessibility compliance while the fluted top surface provides enhanced safety. Engineered for commercial environments where dependable weather sealing and durability are 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 324-36 – Frequently Asked Questions

1) Is the NGP 324 half saddle threshold ADA compliant?
The NGP 324 meets accessibility requirements when it is installed with the non-beveled edge flush with the flooring, or anywhere the vertical rise it creates is no greater than 1/4 inch. At 1/2 inch tall overall, that means the install matters as much as the part: set on top of finished flooring with nothing to ease the edge, a 1/2 inch rise exceeds the 1/4 inch unbeveled limit. Recess it or bring the floor up to it and you are compliant.
2) What size opening does the NGP 324 threshold cover, and what lengths can I get?
Stock lengths run 36, 40, 42, 44, 48, 52, 72 and 76 inches. The 36 through 52 inch range covers single doors from a 3-0 up to a 4-0 leaf with jamb-to-jamb coverage, and the 72 and 76 inch lengths are there for pairs. Aluminum extrusion cuts clean with a miter saw, so order the next length up and trim to the frame rather than coming up short.
3) What is the difference between the NGP 324 half saddle threshold and the Pemko 272 saddle threshold?
Both are ADA compliant flat/saddle aluminum thresholds, but they cover different openings. The NGP 324 is a 4 inch wide by 1/2 inch tall half saddle in aluminum alloy 6063, T5 temper with a fluted top, supplied in 36, 40, 42, 44, 48, 52, 72 and 76 inch lengths. The Pemko 272 Series is a 1/4 inch by 6 inch heavy-duty aluminum flat saddle. If the door bottom sits close to the floor and you need the lowest possible rise across a 6 inch run, the 272 profile is the flatter and wider of the two; if you need a 1/2 inch rise on a 4 inch bearing surface, the 324 is the one that matches.
4) I need a fire rated saddle threshold for a labeled opening - is the NGP 324 the right part?
The NGP 324 is a 1/2 inch by 4 inch half saddle in aluminum alloy 6063, T5 temper, ADA compliant when the non-beveled edge is installed flush with the flooring or where no more than a 1/4 inch vertical rise occurs. For an opening where the threshold itself has to carry a fire rating, look at the Cal-Royal saddle threshold series instead: the 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. Match the required hourly rating on the door label before selecting.
5) Do I get fasteners with the NGP 324 threshold or do I need to buy screws separately?
Mounting screws come with it: #10 x 1-1/2 inch flat head zinc plated wood screws. Those are wood screws, so for a concrete or tile slab you will want to swap to masonry anchors or sleeve anchors of the same #10 size and drill accordingly. Dark bronze screws ship with DKB finish thresholds instead of zinc.
6) Is a flat saddle threshold the same thing as a half saddle threshold?
They are related but not interchangeable. A half saddle such as the NGP 324 covers one side of the opening, 4 inches wide at 1/2 inch tall with a fluted top in aluminum alloy 6063, T5 temper, and is typically used where the threshold only needs to bear on the interior or exterior side of the door line. A flat saddle such as the Pemko 272 Series spans the full opening at 1/4 inch by 6 inches. Measure how much floor the old unit covered on each side of the door stop before ordering - that determines which of the two profiles the opening takes.
7) For standardizing thresholds across a facility, what are the ADA compliant saddle options?
Three saddle families cover most commercial openings. The NGP 324 half saddle is 4 inches wide by 1/2 inch tall in aluminum alloy 6063, T5 temper with a fluted top for slip resistance, ADA compliant when the non-beveled edge is flush with the flooring or where no more than a 1/4 inch vertical rise occurs, and it runs from 36 inch through 76 inch lengths for single and pair openings. The Pemko 272 Series is an ADA compliant flat saddle at 1/4 inch by 6 inches in heavy-duty aluminum. The Cal-Royal CR2000 Series is a saddle threshold with a fire rated and ADA compliant design for labeled openings. A facility standard usually needs at least one non-rated profile and one rated profile, since labeled doors cannot take the non-rated part.
8) Will the fluted top on an aluminum threshold hold up in a high traffic entry?
The 324 is extruded from 6063 aluminum in T5 temper with a .250 inch typical wall, which is a structural extrusion rather than a thin roll-formed cap, and it is specified for commercial use. The fluted top gives a textured walking surface rather than a slick mill face, which matters on a wet entry. Mill finish aluminum will scuff to a satin look over time under foot traffic, but the section thickness is what carries the load.
9) Can I get the NGP 324 threshold in bronze or does it only come in mill finish?
The 324 as supplied is mill finish, the natural uncoated aluminum face. NGP builds dark bronze into the same extrusion under the DKB designation, and that version ships with dark bronze screws rather than zinc plated ones to match. If you are standardizing a building on bronze hardware, order the DKB variant so the fasteners do not read silver against the finish.
10) How much do I need to order for a pair of doors, and how heavy is it to carry in?
For a pair, the 72 and 76 inch lengths are the ones to look at; cut to the exact frame opening on site. Weight is 1.20 lbs per foot, so a 76 inch stick is under 8 lbs, a one-hand carry and a one-person install. The 6063 T5 extrusion drills and cuts with standard carbide tooling.
How fast can I get the NGP 324-36 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 324-36 come with a warranty?
Absolutely. The NGP 324-36 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 324-36?
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 324-36 from ZenSupply?
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