Don-Jo DSF-45 Door Seam Filler...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$15.86
Don-Jo DSF-45 Door Seam Filler Plate 4.5" x 1.605", 25-Gauge Steel, Prime Coated, Non-Handed

Don-Jo DSF-45 Door Seam Filler Plate 4.5" x 1.605", 25-Gauge Steel, Prime Coated, Non-Handed

(5 reviews) Write a Review

Model: DSF-45

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

$15.86
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Don-Jo DSF-45 Door Seam Filler Plate 4.5" x 1.605" — 25-Gauge Steel, Prime Coated

The Don-Jo DSF-45 Door Seam Filler Plate is a professional-grade steel accessory measuring 4.5" x 1.605" designed to cover the edge seam of a hollow metal door fitted with standard weight commercial grade hinges (4.5 x 4.5). Constructed from 25-gauge (.022) steel with a prime coat finish, this filler plate delivers a clean, finished appearance while accommodating new hardware installations on existing doors. Its universal, non-handed design makes it a versatile solution for a wide range of door configurations without the need for separate left- or right-hand versions.

Key Features

  • Precise Dimensions: Measures 4.5" in length and 1.605" in width, sized to align perfectly with standard 4.5 x 4.5 commercial grade hinges on hollow metal doors.
  • 25-Gauge Steel Construction: Fabricated from 25-gauge (.022) steel for durable, reliable performance in commercial door hardware applications.
  • Prime Coated Finish (PC): Factory-applied prime coat provides a ready-to-paint surface, allowing seamless integration with existing door finishes.
  • Non-Handed (Universal) Design: The universal configuration eliminates handed inventory requirements, providing flexible solutions for new hardware installations on existing doors.
  • Hollow Metal Door Compatibility: Specifically designed to cover the edge seam of hollow metal doors used with standard weight commercial grade hinges (4.5 x 4.5).
  • Convenient Shelf Pack: Available in a shelf pack of 30 units, making it practical for contractors and distributors managing multiple door projects.

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Product Subgroup: Filler Plates, Lock Adapters and Wrap Arounds
  • Subcategory: Filler Plates, Lock Adapters and Wrap Arounds
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings with Hollow Metal Door Installations
  • Educational Facilities Upgrading Existing Door Hardware
  • Healthcare Institutions Requiring Clean Door Edge Finishes
  • Retail Establishments Retrofitting New Hardware on Existing Doors
  • Industrial and Warehouse Facilities with Standard Commercial Hinges
  • Multi-Tenant Residential Properties with Hollow Metal Entry Doors
  • Government and Municipal Buildings Undergoing Door Hardware Replacement

Why Don-Jo DSF-45?

Don-Jo DSF-45 Door Seam Filler Plates are engineered from 25-gauge (.022) steel with a prime coat finish, delivering dependable coverage and a professional appearance on hollow metal doors equipped with standard weight commercial grade 4.5 x 4.5 hinges. The non-handed, universal design simplifies specification and installation, making this filler plate an efficient, reliable choice for commercial door hardware professionals.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Filler Plates, Lock Adapters and Wrap Arounds
Product Type:
Door Seam Filler Plate
Commercial/Residential:
Commercial
Subcategory:
Filler Plates, Lock Adapters and Wrap Arounds
Product Model:
DSF 45
Product Finish:
Prime Coat
Product Category:
Door Trim and Accessories
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo DSF-45 – Frequently Asked Questions

1) What does a door seam filler plate actually cover on a hollow metal door?
The edge seam. A hollow metal door is two steel skins joined along the lock and hinge edge, and that joint line runs right through where the hinges mount. The Don-Jo DSF-45 covers it: a 4.5 by 1.605 inch piece of 25-gauge steel that hides the seam and leaves a clean edge once the hardware is back on. It's the part people reach for when new hinges or new hardware go onto an existing hollow metal door and the old edge no longer looks finished.
2) Is the Don-Jo DSF-45 filler plate handed, or does one part work on both left and right hand doors?
Non-handed. One part covers both hands, so a building with doors swinging in both directions takes a single item instead of a left and a right version sitting on the shelf. For a property manager or an MRO storeroom standardizing a hardware change across a floor, that's the whole point of the part: order the quantity, not the handing.
3) Does the Don-Jo DSF-45 come finished, or do I have to paint it?
Prime coated, and that is the only finish it comes in. The factory prime is a paint-ready surface, so budget for topcoating it to match the door. Worth knowing before you order: a primed steel plate is meant to disappear into a painted hollow metal door. If the opening has plated hardware and you were hoping the plate would match a brass or satin chrome hinge, painting a prime coat won't get you there.
4) Can I use a DSF-45 seam filler plate on a wood door?
No. It's built for hollow metal doors. A wood slab has no edge seam to cover, so there's nothing on that door for the plate to do, and the 4.5 inch length is set up around the 4-1/2 x 4-1/2 hinge used on commercial steel openings. Keep this one to hollow metal.
5) Will the DSF-45 cover an old hinge mortise I'm not using anymore?
That's a different part. The DSF-45 is a seam cover, 4.5 by 1.605 inches, sized to run alongside a 4-1/2 x 4-1/2 hinge and hide the door's edge seam. It is not wide enough to fill an abandoned hinge pocket. For a hinge cutout you're closing off, you want a hinge filler plate sized to the mortise itself, not a seam filler.
6) Is 25-gauge steel heavy enough for a commercial door application?
For what this part does, yes. The DSF-45 is 25-gauge steel, .022 inches, and it's thin on purpose. It's a cover plate, not a reinforcement, so it carries no load and adds almost nothing to the door edge. The hinge does the work. Don-Jo rates the plate for commercial use.
7) How do Don-Jo DSF-45 filler plates come packaged for a multi-door job?
They come in a shelf pack of 30. That's the number to plan around if you're changing hinges or hardware across a floor of hollow metal doors rather than fixing one opening. Since the plate is non-handed, all 30 spread across any mix of door swings without sorting.
How fast can I get the Don-Jo DSF-45 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 DSF-45 come with a warranty?
Absolutely. The Don-Jo DSF-45 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 DSF-45?
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 DSF-45 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.

Product Reviews

  • 4
    Exactly What I Needed!

    Posted by Andy on Jun 17th 2024

    I got the Don-Jo DSF-45 Door Seam Filler Plate for my front door, and it fit perfectly. It's sturdy and does the job well. The only downside is the installation took a bit longer than expected. Overall, solid product!

  • 5
    Practical and Effective

    Posted by Ethan on Jul 1st 2024

    It's easy to install and does the job well.

  • 5
    Sturdy Door Seam Filler Plate

    Posted by Dylan on Jun 27th 2024

    The Don-Jo DSF-45 Door Seam Filler Plate works great to cover gaps in my door. It's sturdy and blends in well. My only complaint is the finish scratches easily, but overall, it's a solid product.

  • 5
    Don-Jo DSF-45 Door Seam Filler Plate

    Posted by Mike on Jun 14th 2024

    Works for my needs!

  • 5
    Solved My Door Gap Dilemma!

    Posted by Xavier on Sep 6th 2023

    The Don-Jo DSF-45 Door Seam Filler Plate is a lifesaver for closing those annoying gaps around my door. Super easy to install, and it blends seamlessly. The only catch is it doesn't come with screws, so you'll need to grab some. Overall, a small fix with big results!

!