NGP 324DKB 72 Half Saddle Thre...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$231.48
NGP-324DKB 1/2" Half Saddle Threshold, 72" x 4" Wide, Dark Bronze Finish

NGP 324DKB 72 Half Saddle Threshold 72" x 4" Wide Dark Bronze Aluminum Alloy

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Model: 324DKB 72

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

$231.48
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NGP Half Saddle Threshold 72" x 4" Wide Dark Bronze Aluminum Alloy

Professional Door Threshold Solution

The NGP Half Saddle Threshold delivers professional-grade door transition performance with durable aluminum alloy 6063, T5 temper construction. This 72" x 4" wide threshold features a 1/2" height profile with fluted top surface for enhanced traction and ADA compliance when properly installed. The dark bronze finish provides lasting appearance in commercial applications with typical wall thickness of .250" and lightweight 1.20 lbs./ft. construction.

Professional Features & Benefits

  • Precise Dimensions: 72" length x 4" width x 1/2" height provides optimal door transition coverage for standard commercial openings.
  • Heavy-Duty Construction: Aluminum alloy 6063, T5 temper material delivers 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.
  • Enhanced Safety Features: Fluted top surface provides improved traction and slip resistance for pedestrian safety.
  • Professional Installation: Includes #10 x 1-1/2" FH zinc plated wood screws specifically matched to dark bronze finish for seamless appearance.
  • Lightweight Design: 1.20 lbs./ft. weight allows for easy handling and installation while maintaining structural integrity.
  • Durable Finish: Dark bronze finish provides attractive appearance and enhanced resistance to wear and weathering.

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 fluted top design and ADA compliant profile ensure both safety and accessibility compliance. Engineered for demanding commercial applications where dependable door transition performance 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 324DKB 72 – Frequently Asked Questions

1) Will the NGP 324DKB half saddle threshold meet ADA for an accessible opening?
The 324DKB is a 1/2 inch high half saddle, and ADA compliance depends on how you set it. NGP states it complies when installed with the non-beveled edge flush with the flooring, or where the vertical rise is no greater than 1/4 inch. Drop it on top of finished floor with the full 1/2 inch standing proud and you are outside that. On an accessible route, recess or shim the low side so the exposed rise stays within 1/4 inch.
2) What is a comparable saddle threshold to the NGP 324DKB if I need a fire rated opening?
The NGP 324DKB is a half saddle threshold in aluminum alloy 6063, T5 temper with a fluted top and a 1/2 inch height, and it is described for commercial openings without a fire rating claim. When the opening requires a fire rated saddle, the Cal-Royal CR3700 Series is a saddle threshold carrying a 3-hour positive pressure fire rating, and the Cal-Royal CR2000 Series is a saddle threshold described as fire rated and ADA compliant. On a labeled door assembly, match the threshold to the rating called out on the door and frame labels.
3) I need a wider threshold than 4 inches for a door transition - what else works?
The NGP 324DKB covers a 4 inch width at 1/2 inch height in a half saddle profile. Where the transition needs more coverage across the sill, the Pemko 272 Series is a flat saddle threshold at 1/4 inch height and 6 inch width in heavy-duty aluminum. The extra two inches of width and the lower flat profile change how the plate meets the flooring on each side, so measure the existing sill opening before choosing between them.
4) Which saddle threshold has the lowest rise for accessibility?
The NGP 324DKB is a 1/2 inch high half saddle and meets accessibility requirements when installed with the non-beveled edge flush with the flooring or where no greater than 1/4 inch vertical rise occurs. The Pemko 272 Series is an ADA compliant flat saddle at 1/4 inch height, so the plate itself sits at a quarter inch above the substrate. The Cal-Royal CR2000 Series is also described as ADA compliant. Which one satisfies the path of travel depends on how the threshold lands relative to the finished floor on both sides.
5) Is a half saddle threshold the right choice, or do I need a full saddle?
A half saddle like the 324DKB is a single flat run, 4 inches wide with a fluted top, used where you are covering a floor transition or a worn sill and there is no weatherstripping to seat. A full saddle carries a raised stop or groove for a door bottom seal and is what you want on an exterior opening that has to shed water and air. For an interior transition, a vestibule, or capping a damaged sill in a corridor, the half saddle is the simpler part and sits lower at 1/2 inch.
6) Does the NGP 324DKB threshold come with fasteners, or do I need to buy screws separately?
Screws are in the box. NGP supplies #10 x 1-1/2 inch flat head zinc plated wood screws finished to match the dark bronze, so the heads do not stand out against the threshold. Note the length and type: those are wood screws sized for a wood subfloor. Setting this on concrete means anchors and a masonry bit on your own, since the supplied fasteners will not hold in slab.
7) Will a 1/2 inch threshold cause the door to bind or need undercutting?
The 324DKB stands 1/2 inch above whatever it is fastened to, so the door bottom has to clear that plus any sweep. If your existing door was hung to a bare floor, you will likely need to undercut or rehang. If you are replacing a threshold of similar height, the swing is unchanged. Where you recess the unit to hold the ADA 1/4 inch rise, the clearance you lose is correspondingly less.
8) Is a flat saddle threshold the same thing as a half saddle threshold?
No. The NGP 324DKB is a half saddle, a profile that steps at one edge rather than running flat across its full 4 inch width. The Pemko 272 Series is a flat saddle at 1/4 inch by 6 inch. A flat saddle is not a drop-in for a half saddle when the flooring heights on the two sides of the opening differ, because the half saddle profile is what absorbs that difference. Confirm which side of the sill needs the step before substituting one for the other.
9) If I am standardizing thresholds across a facility, what series should I look at alongside the NGP 324DKB?
The NGP 324DKB is a commercial half saddle threshold in aluminum alloy 6063, T5 temper, supplied in a dark bronze finish with matching #10 x 1-1/2 inch flat head zinc plated wood screws. For a facility standard that has to span both rated and unrated openings, the Cal-Royal CR 2000 Series covers fire rated and ADA compliant saddle thresholds and the Cal-Royal CR 3700 Series covers saddle thresholds with a 3-hour positive pressure fire rating. The Pemko 272 Series is the flat saddle option in heavy-duty aluminum. Standardizing usually means picking one profile family and one finish, then varying only by opening width.
10) Is a fluted aluminum threshold slippery in a high traffic entry?
The top face of the 324DKB is fluted rather than smooth, which is what gives it traction underfoot in a doorway that sees constant crossing. It is specified as a commercial part, and the 6063 T5 alloy resists corrosion where mopping, salt, and tracked-in water are routine. In lobbies and corridors carrying carts and foot traffic all day, that fluted face is the difference from a plain flat plate.
11) Can I match the dark bronze threshold to the rest of my door hardware across a building?
The 324DKB is finished dark bronze, and the supplied screws are finished to match, so the fastener heads disappear into the face instead of reading as bright dots down the middle of the opening. For a property manager standardizing corridors or entries on dark bronze levers and closers, the 324 profile in 72 inch lengths gives you one repeatable part number across identical openings.
How fast can I get the NGP 324DKB 72 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 324DKB 72 come with a warranty?
Absolutely. The NGP 324DKB 72 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 324DKB 72?
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 324DKB 72 from ZenSupply?
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