NGP 176DKB Overlapping Astraga...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$315.79
NGP NGP 176DKB Overlapping Astragal, Dark Bronze NGP-176DKB

NGP 176DKB Overlapping Astragal 120" Maximum Height Dark Bronze Aluminum

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Model: 176DKB-84

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

$315.79
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NGP Overlapping Astragal 120" Maximum Height Dark Bronze Aluminum

Professional Door Sealing Solution for Commercial Applications

The NGP Overlapping Astragal provides effective sealing between double doors with professional-grade aluminum alloy 6063 construction in T5 temper. Designed for square edge doors with a maximum height capacity of 120", this dark bronze aluminum astragal includes #10 X 3/4" SMS fasteners for secure installation. The overlapping design ensures reliable weather sealing and sound dampening for commercial door applications.

Professional Features & Benefits

  • Maximum Door Height: Accommodates doors up to 120" in height for versatile commercial applications including oversized openings.
  • Premium Aluminum Construction: Aluminum alloy 6063 with T5 temper provides exceptional durability and corrosion resistance for long-term performance.
  • Square Edge Door Compatibility: Specifically designed to fit square edge doors for precise installation and optimal sealing performance.
  • Complete Hardware Package: Includes #10 X 3/4" SMS fasteners for immediate installation without additional hardware requirements.
  • Dark Bronze Finish: Professional dark bronze aluminum finish complements modern commercial door hardware and architectural elements.
  • Overlapping Design: Engineered overlapping configuration provides superior weather sealing and acoustic performance between door panels.
  • Optional Fast Attach Tape: FATT (Fast Attach Tape) option available for alternative mounting applications where traditional fasteners are not suitable.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Astragals
  • Series: Overlapping Astragal Series
  • 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 astragal products deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction rated for demanding commercial applications. The precision-engineered overlapping design with included SMS fasteners ensures dependable weather sealing performance. Engineered for demanding commercial applications where reliable door sealing and professional appearance are essential.

Product Specs

Product Group:
Door Trim and Accessories
Series:
Overlapping Astragal Series
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Astragals
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 176DKB-84 – Frequently Asked Questions

1) Will the NGP 176 overlapping astragal work on square edge double doors?
Square edge doors are exactly what the 176 is built for. It mounts to the face of one leaf of a pair and overlaps the meeting stile of the other, sealing the gap between the two panels. If your doors have a beveled edge rather than a square edge, this is the wrong profile for the opening.
2) What door heights does the NGP 176DKB astragal cover, and can I cut it down?
The 176DKB comes in 84, 96 and 120 inch lengths, so a standard 7 foot leaf takes the 84 inch, an 8 foot leaf the 96 inch, and openings up to 10 feet the 120 inch. Aluminum alloy 6063 in T5 temper cuts cleanly, so ordering the next length up and trimming to the exact leaf height is normal practice on a non-standard opening.
3) Overlapping astragal or a split astragal for a pair of commercial doors?
An overlapping astragal such as the NGP 176 mounts on one leaf only and laps the other, so the active leaf has to close last. A split type puts a half on each leaf and lets either leaf close independently. Pemko's 369 split astragal seal is the split option we carry, an aluminum piece measuring 13/32 by 11/32 inches with a pile brush insert. Pick overlapping when you want a solid aluminum lap and a defined closing order; pick split when both leaves get used and swing order is not controlled.
4) What is the closest equivalent to the NGP 176 overlapping astragal from another brand?
The Cal-Royal EAST-501 is the nearest cross-brand match in form: it is an aluminum astragal for double doors, built as a T-astragal with a vinyl insert rather than the NGP 176's overlapping aluminum profile with #10 x 3/4 inch SMS fasteners included. Both mount to the door to seal the meeting stile of a pair. The practical difference is the sealing element and the profile shape: the EAST-501 carries a vinyl insert in a T shape, while the 176 seals by overlapping the adjacent leaf and is offered in dark bronze aluminum alloy 6063 T5 in 84, 96 and 120 inch lengths.
5) What should I use instead of an overlapping astragal if the double doors are fire-rated?
The Pemko 369 split astragal seal is the fire-rated option among comparable astragals; it is an aluminum split astragal with a pile brush insert at 13/32 inch by 11/32 inch. A split astragal puts a seal section on each leaf instead of one leaf overlapping the other, which is why it is the one to specify when the pair has to stay rated. The NGP 176 overlapping astragal is a commercial aluminum 6063 T5 profile for square edge doors and is the choice where the opening does not carry a rating requirement.
6) The gap between my double doors is inconsistent from top to bottom - is there an astragal that handles that better than a fixed overlapping profile?
The Pemko 300 Series adjustable astragal is built for that case: it is an adjustable astragal with a self-adjusting pile brush for double doors, so the seal takes up variation across the meeting stile rather than relying on a fixed overlap. The NGP 176 is a fixed overlapping aluminum profile sized for square edge doors, which assumes a consistent gap along the full height of the pair, up to a 120 inch maximum door height.
7) Do I need to buy screws separately for the NGP 176 astragal?
No extra hardware needed. The 176 ships with #10 x 3/4 inch sheet metal screws for face mounting. If you are going onto a substrate where you cannot drill, NGP offers the FATT fast attach tape option instead of the fasteners.
8) I want a brush seal rather than a metal-on-metal overlap between the doors - what are my options?
Two comparable astragals seal with pile brush instead of an overlapping aluminum face. The Pemko 300 Series uses a self-adjusting pile brush and is an adjustable astragal for double doors. The Pemko 369 is a split astragal seal with a pile brush insert, aluminum, 13/32 inch by 11/32 inch. The Cal-Royal EAST-501 takes a third approach with a vinyl insert in an aluminum T-astragal. The NGP 176 seals by overlapping the adjacent leaf in aluminum alloy 6063 T5 and is finished in dark bronze.
9) What is the difference between the Trimco 5001 and 5002 lock astragals?
Both are stainless steel lock astragals. The 5001 is specified for use with mortise or cylindrical locks; the 5002 is specified for cylindrical locks and is 1-9/16 inches by 6 inches. If the active leaf carries a mortise lock, the 5001 is the one that covers it.
10) Is a stainless steel astragal available if aluminum will not hold up in my application?
Among comparable astragals, the stainless steel pieces are the Trimco 5001 and the Trimco 5002, both lock astragals - the 5001 for mortise or cylindrical locks and the 5002 for cylindrical locks at 1-9/16 inches by 6 inches. They are lock-area parts, not full-height meeting stile seals. The full-height comparables, including the NGP 176 in aluminum alloy 6063 T5 temper, the Cal-Royal EAST-501, and the Pemko 369, are aluminum.
11) Will the dark bronze finish on the NGP 176DKB match my existing bronze door hardware?
The DKB suffix is dark bronze, and it is a finish on the aluminum extrusion itself rather than a coating over a different base metal. It reads as a dark anodized bronze alongside typical bronze-finished commercial door hardware. Across a building where you are standardizing meeting stiles on a run of pairs, ordering all three lengths in DKB keeps the openings consistent.
12) Will an aluminum astragal hold up in a school or hospital corridor?
Aluminum alloy 6063 in T5 temper is the extrusion grade used across commercial gasketing, and the 176 is specified as a commercial product rather than residential. It resists corrosion and does not have a soft insert at the lap to tear out under traffic, which is the usual failure point on high-cycle pairs in schools, healthcare corridors and multi-tenant buildings.
How fast can I get the NGP 176DKB-84 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 176DKB-84 come with a warranty?
Absolutely. The NGP 176DKB-84 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 176DKB-84?
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 176DKB-84 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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