NGP 5X428EX425E Floor Closer T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$564.71
NGP 5X428EX425E Floor Closer Threshold 8" x 5" x 36" Aluminum Alloy with Fluted Top

NGP 5X428EX425E Floor Closer Threshold 8" x 5" x 36" Aluminum Alloy with Fluted Top

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Model: 5X428EX425E-36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$564.71
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NGP Floor Closer Threshold 8" x 5" x 36" Aluminum Alloy with Fluted Top

Professional Floor Closer Integration Solution

The NGP Floor Closer Threshold provides seamless integration for floor closer installations with precision-engineered aluminum alloy construction. This threshold features 8" width at the floor closer area, transitioning to 5" wide x 1/2" tall profile over 36" length. Manufactured from aluminum alloy 6063 with T5 temper for commercial durability, the fluted top design enhances traction and professional appearance.

Professional Features & Benefits

  • Precision Dimensions: 8" wide at floor closer with 5" wide x 1/2" tall x 36" length profile for optimal floor closer integration.
  • Heavy-Duty Construction: Aluminum alloy 6063 with T5 temper provides exceptional durability and corrosion resistance for commercial applications.
  • Fluted Top Design: Textured surface enhances traction and safety while maintaining professional appearance.
  • Universal Compatibility: Can be fabricated for use with any floor closer system for versatile installation options.
  • Complete Hardware Package: Includes #10 x 1-1/2" FH zinc plated wood screws for secure installation.
  • Multiple Finish Options: Available in Mill Aluminum and Dark Bronze finishes, with optional SIA slip-resistant finish for enhanced safety.
  • Lightweight Design: 0.80 lbs./ft. weight with typical wall thickness of .109" for easy handling and installation.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Thresholds
  • Product Type: Floor Closer Thresholds
  • Series: Saddle Threshold Series
  • Subcategory: Thresholds

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 Floor Closer Thresholds deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction engineered for demanding commercial applications. The precision-engineered dimensions and fluted top design ensure optimal performance and safety in high-traffic environments where dependable threshold performance is essential.

Manufacturer Resources

NGP Threshold Catalog

Product Specs

Product Group:
Door Trim and Accessories
Series:
Saddle Threshold Series
Product Subgroup:
Door Thresholds
Product Type:
Floor Closer Thresholds
Subcategory:
Thresholds
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 5X428EX425E-36 – Frequently Asked Questions

1) Will the NGP 5X428EX425E threshold work with my floor closer, or is it made for one specific brand?
The 5X428EX425E is a saddle threshold that can be fabricated to suit any floor closer system, so you are not locked to one closer manufacturer. The wide section is 8 inches across at the closer, which is the area that has to clear the closer body and cement case, then it steps down to a 5 inch wide by 1/2 inch tall running profile. Match the 8 inch section to where your closer sits in the floor and the rest of the saddle carries across the opening.
2) Do I need to buy anchors or screws separately for this NGP floor closer threshold?
Fasteners come with it. The 5X428EX425E ships with #10 x 1-1/2 inch flat head zinc plated wood screws. Those are wood screws, so on a concrete or terrazzo floor, which is the usual substrate over a floor closer case, you will still need to supply your own anchors or shields to suit the slab.
3) Is a 1/2 inch tall threshold low enough to be walked over in a public entrance?
The running section of this NGP floor closer saddle stands 1/2 inch tall over its 5 inch width, so it is a low-profile saddle rather than a ramped or panic-height threshold. That half inch is below the point where most commercial openings need a bevel added on each side. The top is fluted, which gives underfoot traction on a metal surface that otherwise gets slick when wet, and a slip-resistant SIA finish can be specified on top of that for lobby and entrance traffic.
4) What finish should I order to match the aluminum storefront doors I already have?
Two finishes are made in every length of this floor closer threshold: Mill Aluminum and Dark Bronze. Mill is the raw aluminum look that matches clear anodized storefront framing; Dark Bronze matches dark anodized entrances. If the saddle is going into a wet lobby or a high-traffic entry, the SIA slip-resistant finish can be specified as well.
5) Is this a saddle threshold or a full entrance threshold with a weatherseal?
This is a plain saddle, part of NGP's Saddle Threshold Series. It is a flat 5 inch by 1/2 inch plate with a widened 8 inch section over the floor closer, with no vinyl insert, no drain channel and no hook strip for a door bottom seal. That makes it right for interior openings and for vestibule and lobby doors where the weather line is handled at another door. If you need to seal an exterior opening against wind and water, a thermal barrier or panic-style threshold with a seal is the one to specify instead.
6) Can I use a standard threshold and just cut a hole for the floor closer instead?
You can, but the reason this NGP saddle widens to 8 inches at the closer is to cover the cement case and the spindle opening in one piece of extrusion. Cutting into a narrow 4 or 5 inch saddle leaves the closer cover exposed and gives you an edge right where the pivot takes the traffic. The widened section keeps the cover captured under the threshold and keeps the running surface continuous across the opening.
7) Is the NGP 5X428EX425E rated for commercial use or is it a residential threshold?
Commercial. NGP builds this floor closer threshold for commercial openings, and floor closers themselves are near enough exclusive to commercial entrances, storefronts and institutional lobbies. Typical installs are office buildings, schools, hospitals, retail, warehouses, multi-tenant residential common entries and municipal buildings.
How fast can I get the NGP 5X428EX425E-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 5X428EX425E-36 come with a warranty?
Absolutely. The NGP 5X428EX425E-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 5X428EX425E-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 5X428EX425E-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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