NGP 5X428BRX425BR Floor Close...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,360.70
NGP NGP 5X428BR X 425BR Floor Closer Thresholds, Bronze NGP- 5X428BRX425BR

NGP 5X428BRX425BR Floor Closer Threshold 8" x 5" x 36" Bronze Architectural Finish

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Model: 5X428BRX425BR-36

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

$2,360.70
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NGP Floor Closer Threshold 8" x 5" x 36" Bronze Architectural Finish

Professional Floor Closer Integration Solution

The NGP Floor Closer Threshold provides seamless integration for floor closer installations with precision-engineered dimensions of 8" wide at floor closer area, transitioning to 5" wide x 1/4" tall x 36" length. Constructed from premium Alloy CDA 385 (Copper Alloy No. C38500) with architectural bronze satin finish (728) similar to US4, this threshold delivers professional-grade durability at 2.84 lbs./ft. weight capacity. The fluted top design enhances both functionality and appearance while accommodating typical wall thickness of .187".

Professional Features & Benefits

  • Precision Dimensions: 8" wide at floor closer area with 5" wide x 1/4" tall x 36" length for optimal floor closer integration and door operation clearance.
  • Premium Alloy Construction: Alloy CDA 385 (Copper Alloy No. C38500) provides exceptional durability and corrosion resistance for long-term commercial performance.
  • Architectural Bronze Finish: Satin finish (728) similar to US4 delivers professional appearance with consistent color matching to standard architectural hardware.
  • Fluted Top Design: Enhanced surface texture provides improved traction and visual appeal while maintaining smooth door operation.
  • Universal Floor Closer Compatibility: Can be fabricated for use with any floor closer system for versatile installation options.
  • Complete Installation Hardware: Includes #10 X 1-1/2" brass wood screws with antique bronze finish screws provided for dark bronze threshold applications.
  • Optional Slip-Resistant Finish: SIA slip-resistant finish available for areas where conditions can be hazardous and safety is a priority.
  • Structural Capacity: 2.84 lbs./ft. weight rating with .187" typical wall thickness accommodation for reliable structural performance.

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 premium Alloy CDA 385 construction and architectural bronze satin finish rated at 2.84 lbs./ft. capacity. The precision-engineered 8" x 5" x 36" dimensions with fluted top design ensure optimal floor closer integration and long-term performance. Engineered for demanding commercial applications where dependable threshold performance and architectural consistency are 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 5X428BRX425BR-36 – Frequently Asked Questions

1) What lengths does the NGP 5X428BR floor closer threshold come in?
Four lengths are offered, sized by the door opening they cover: 36, 48, 72 and 96 inches. Pick the length by the opening width, not the door leaf alone, since the threshold has to run the full width of the frame.
2) Why is this threshold 8 inches wide in one section and 5 inches in another?
The wide section is the part that sits over the floor closer body. The threshold is 8 inches wide at the floor closer area and then transitions to a 5 inch wide by 1/4 inch tall section for the rest of the 36 inch run. That gives you cover over the closer cement case while keeping the crossing profile low through the rest of the opening.
3) Will this NGP threshold work with the floor closer I already have installed?
It can be fabricated for use with any floor closer, so it is not tied to one manufacturer's case. Give the closer make and model when ordering so the cutout lands over your case.
4) I have a pair of doors on floor closers. Which length do I order?
Measure the full clear opening across both leaves, not one leaf. A pair of 36 inch doors needs the 72 inch piece; a pair of 48 inch leaves needs the 96 inch. Note that only one section of the threshold is widened to 8 inches for the closer, so tell us where the closer sits in the opening when ordering a pair.
5) Is a 1/4 inch tall threshold low enough for a barrier-free opening?
At 1/4 inch tall across the 5 inch wide section, this NGP saddle sits at a quarter inch above the finished floor. That is a low-profile crossing rather than a raised ramped saddle, which is why it is commonly used at interior floor closer openings in offices, schools, healthcare and retail buildings.
6) What is this bronze threshold actually made of, and what finish is it?
Material is Alloy CDA 385 (Copper Alloy No. C38500), architectural bronze. The finish is satin 728, similar to US4, so it matches standard architectural bronze hardware on the rest of the opening. Copper alloy holds up to traffic and moisture better than a painted or plated substrate at a door sill.
7) Do I need to buy fasteners separately for this floor closer threshold?
No. It ships with #10 x 1-1/2 inch brass wood screws, in an antique bronze finish for dark bronze threshold applications. Anchors for concrete are not part of that, so if you are setting into slab rather than wood, plan on the appropriate masonry anchors.
8) Is there a slip-resistant option for this NGP saddle threshold?
Yes. The standard top is fluted, which gives some texture underfoot. Where conditions get wet or otherwise hazardous, an SIA slip-resistant finish is available and has to be specified when you order.
How fast can I get the NGP 5X428BRX425BR-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 5X428BRX425BR-36 come with a warranty?
Absolutely. The NGP 5X428BRX425BR-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 5X428BRX425BR-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 5X428BRX425BR-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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