NGP 458 Half Saddle Threshold ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$157.45
NGP 458 3/4" Half Saddle and Extended Width Component, Milled Aluminum Finish

NGP 458 Half Saddle Threshold Component 3/4" x 7" Wide Milled Aluminum

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Model: 458-36

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

$157.45
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NGP 458 Half Saddle Threshold Component 3/4" x 7" Wide Milled Aluminum

Professional Door Threshold Solution

The NGP 458 Half Saddle Threshold Component delivers professional-grade door transition performance with precision-milled aluminum construction. Measuring 7" wide x 3/4" tall, this extended width component features aluminum alloy 6063 T5 temper construction with a fluted top design for enhanced durability and slip resistance. The .125" typical wall thickness and 1.11 lbs./ft. weight provide optimal structural integrity for commercial applications.

Professional Features & Benefits

  • Extended Width Design: 7" wide x 3/4" tall dimensions provide comprehensive door transition coverage for wider openings and enhanced weather sealing.
  • Premium Aluminum Construction: Aluminum alloy 6063 T5 temper material delivers exceptional durability and corrosion resistance for long-term performance.
  • Fluted Top Surface: Textured fluted top design enhances slip resistance and provides improved traction for safe pedestrian traffic.
  • Structural Integrity: .125" typical wall thickness and 1.11 lbs./ft. weight specification ensures robust construction for high-traffic commercial applications.
  • Complete Installation Hardware: Includes #10 x 1-1/2" FH zinc plated wood screws for secure mounting and professional installation.
  • Finish Options: Available in mill finish standard with optional slip resistant SIA finish for enhanced safety applications.
  • Compatible Accessories: Dark bronze screws supplied with DKB thresholds for coordinated finish applications.

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: Thresholds - Saddle
  • 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 threshold components deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction rated for demanding commercial applications. The precision-milled finish and structural .125" wall thickness ensure dependable performance where consistent door transition function 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:
Thresholds - Saddle
Subcategory:
Thresholds
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 458-36 – Frequently Asked Questions

1) Do I get fasteners with the NGP 458 threshold or do I have to buy screws separately?
Screws are included: #10 x 1-1/2 inch flat head zinc plated wood screws. Those suit a wood subfloor. If you are anchoring into concrete you will want to swap in appropriate masonry anchors of the same #10 head size so the countersinks still seat flush.
2) Which saddle threshold should I use on a fire rated opening instead of the NGP 458?
Look at the Cal-Royal saddle threshold series. The Cal-Royal CR2000 is described as a fire rated and ADA compliant saddle threshold, and the Cal-Royal CR3700 carries a 3-hour positive pressure fire rating. The NGP 458 is a 7 inch by 3/4 inch milled aluminum half saddle component for commercial door transitions; where the opening carries a fire label and the threshold has to be part of that assembly, the CR2000 or CR3700 is the series to specify.
3) Is the NGP 458 threshold slippery when wet?
The top of the 458 is fluted, which is a milled ribbed surface that gives underfoot traction on the crossing. For wet entries, lobbies, or anywhere you want more grip than the flutes alone, the 458 is also offered with the SIA slip resistant finish instead of plain mill.
4) What is the difference between a half saddle threshold and a full saddle?
A half saddle like the NGP 458 is a one-sided profile: it ramps up on one face and stops, so it is used where the floor on the other side is already at the threshold height, or where you are only covering the transition on one side of the door. A full saddle ramps on both sides and is what you want when both floors sit below the crossing. At 7 inches wide the 458 is an extended width piece, so it covers a broad transition on that single side rather than a narrow strip at the door stop.
5) I need one threshold to run under a pair of doors. Which length of the NGP 458 do I order?
Order the 72 inch or 84 inch length. A standard pair of 3 ft leaves needs roughly 72 inches of crossing plus the frame, so 72 inches covers a tight pair and 84 inches gives you material to trim to the exact frame-to-frame dimension. Running one continuous piece under a pair avoids a seam in the middle of the opening where the doors meet.
6) Can I swap a 6 inch wide saddle threshold for the NGP 458 in the same opening?
Not without checking the floor prep. The NGP 458 is 7 inches wide, while the Pemko 272 saddle threshold is 6 inches wide, so the 458 covers an extra inch of floor and its screw line lands in different places. The 458 is supplied with #10 x 1-1/2 inch flat head zinc plated wood screws, so a swap means drilling fresh anchor points rather than reusing the holes from a narrower threshold.
7) For a wide commercial entry that needs slip resistance, which saddle threshold covers the most floor?
The NGP 458 half saddle is the widest of the comparable saddles at 7 inches, against 6 inches for the Pemko 272 flat saddle. The 458 also has a fluted top surface for traction and is offered in mill finish with an optional slip resistant SIA finish, and comes in 36 inch, 72 inch and 84 inch lengths so a double door or oversized opening can be covered in one piece.
8) Can I get the NGP 458 saddle threshold in dark bronze instead of mill?
Mill aluminum is the standard finish on the 458. NGP supplies dark bronze screws with its DKB finish thresholds so the fasteners match rather than sitting bright in a bronze crossing. If the entrance hardware on the rest of the opening is dark bronze, specify the DKB version so the screw heads coordinate.
How fast can I get the NGP 458-36 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 458-36 come with a warranty?
Absolutely. The NGP 458-36 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 458-36?
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 458-36 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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