Don-Jo HR-100 Hinge Reinforcem...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.06
$7.95
Don-Jo HR-100 Hinge Reinforcement Plate — 8-1/2" x 1-1/16" 10-Gauge Steel

Don-Jo HR-100 Hinge Reinforcement Plate — 8-1/2" x 1-1/16" 10-Gauge Steel

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Model: HR100

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

$9.06
$7.95
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Don-Jo HR-100 Hinge Reinforcement Plate — 8-1/2" x 1-1/16" 10-Gauge Steel

The Don-Jo HR-100 Hinge Reinforcement is a heavy-duty commercial-grade steel plate engineered to strengthen door hinge areas and extend the service life of door assemblies. Measuring 8-1/2" in length and 1-1/16" in width, this reinforcement plate is constructed from 10-gauge (.134) steel, delivering exceptional rigidity and resistance to forced entry or wear at the hinge cutout. Designed for commercial applications, the HR-100 is an essential component for maintaining door integrity in high-traffic environments.

Key Features

  • Precise Dimensions: Measures 8-1/2" in length and 1-1/16" in width, providing accurate coverage and reinforcement at standard commercial door hinge locations.
  • Heavy-Gauge Steel Construction: Fabricated from 10-gauge (.134) steel for superior strength, durability, and resistance to deformation under load or forced-entry attempts.
  • Commercial-Grade Performance: Rated for commercial use, making it suitable for demanding, high-traffic door applications where long-term reliability is critical.
  • Convenient Shelf Pack Quantity: Available in a shelf pack of 50 units, ideal for contractors, facilities managers, and distributors requiring bulk quantities for ongoing projects.
  • Versatile Compatibility: Designed as a hinge reinforcement accessory within the Door Hinges and Pivots product group, compatible with standard commercial door hinge preparations.

Technical Specifications

  • Subcategory: Filler Plates
  • Product Group: Door Hinges and Pivots
  • Product Subgroup: Parts and Accessories
  • Commercial/Residential: Commercial
  • Product Category: Door Hinges and Pivots
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Don-Jo HR-100?

Don-Jo hinge reinforcement products are built to commercial standards, with the HR-100 featuring 10-gauge (.134) steel construction that delivers the structural integrity required for demanding door hardware applications. Engineered for professional installers and facilities teams, the HR-100 provides reliable, long-lasting reinforcement at the hinge area — a critical point of vulnerability on any commercial door assembly.

Manufacturer Resources

DON-JO Hinges

Product Specs

Subcategory:
Filler Plates
Product Group:
Door Hinges and Pivots
Product Subgroup:
Parts and Accessories
Product Type:
Hinge Reinforcement
Commercial/Residential:
Commercial
Product Model:
HR 100
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo HR100 – Frequently Asked Questions

1) What is the Don-Jo HR-100 hinge reinforcement plate used for?
The HR-100 is a steel plate that goes at the hinge cutout on a commercial door to stiffen that area and keep the hinge leaf from pulling or deforming the door edge. It measures 8-1/2 inches by 1-1/16 inches and is 10-gauge (.134) steel, so it covers the length of a standard commercial hinge location and resists deformation under load or a pry attempt. It is not a hinge itself and it is not a filler for an oversized cutout you are abandoning, it is reinforcement behind or around the hinge.
2) Will the HR-100 fit a standard 4-1/2 inch commercial hinge cutout?
The plate is 1-1/16 inches wide and 8-1/2 inches long. A full-mortise commercial hinge leaf is typically 4-1/2 inches tall, so the 8-1/2 inch length spans well past a single hinge leaf, and the 1-1/16 inch width sits within the hinge leaf depth on the door edge rather than out onto the face. Measure your existing mortise depth and leaf height against those two numbers before you cut anything, because the HR-100 is a fixed size with no length options.
3) Do I need one HR-100 per hinge or one per door?
One plate reinforces one hinge location, since it is sized at 8-1/2 by 1-1/16 inches to cover a single standard commercial hinge area. A typical commercial door carries three hinges, so plan on three plates per leaf if you are reinforcing all of them, or just the top hinge if that is the one tearing out, which is usually the case on a door with a closer on it.
4) Is the HR-100 rated for commercial doors or is it a residential part?
Commercial. Don-Jo lists the HR-100 as a commercial-grade item, and the 10-gauge (.134) steel is the reason: schools, hospitals, retail and multi-tenant buildings cycle doors hard enough to loosen hinge screws and crush the mortise, and a thinner plate flexes instead of carrying that load. It will work on a residential door, it is simply heavier than a house door needs.
5) How many HR-100 plates come in a pack?
The HR-100 is sold in a shelf pack of 50. That suits a property manager or GC reinforcing hinges across a run of openings or stocking a service truck, since you typically want two or three plates per door leaf depending on how many hinges you are reinforcing.
6) Is the HR-100 the same thing as a hinge filler plate for an old oversized mortise?
Different jobs, even though the HR-100 sits in the filler plate family. A filler plate blanks off a hinge cutout you are no longer using. The HR-100 is reinforcement: it goes at a live hinge location to add steel where the leaf and screws load the door edge. If your goal is to cover an abandoned mortise on a door face, you want a blank filler or a wrap, not this.
7) What finishes does the Don-Jo HR-100 come in?
The HR-100 is offered as one item, bare 10-gauge steel, with no finish or size options to choose. Because the plate sits in the hinge mortise under the hinge leaf, it is concealed once the hinge is mounted, so finish is not a matching concern the way it is on a wrap or an armor plate.
How fast can I get the Don-Jo HR100 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 Don-Jo HR100 come with a warranty?
Absolutely. The Don-Jo HR100 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 Don-Jo HR100?
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 Don-Jo HR100 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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