NGP 613HD Heavy Duty Stainless...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$182.40
NGP 613HD Heavy Duty Stainless Steel Threshold 6" x 1/4" with Fluted Top

NGP 613HD Heavy Duty Stainless Steel Threshold 6" x 1/4" with Fluted Top

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Model: 613HD-36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$182.40
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NGP Heavy Duty Stainless Steel Threshold 6" x 1/4" with Fluted Top

Professional Heavy-Duty Threshold Solution for High-Traffic Applications

The NGP Heavy Duty Stainless Steel Threshold delivers exceptional durability for demanding commercial applications with its robust 6" wide x 1/4" tall aluminum alloy 6063, T5 temper construction. Specifically engineered for delivery and storage doorways where heavier loads travel, this threshold features a fluted top design for enhanced traction and is recommended for areas with forklift or vehicular traffic. The mill finish provides long-lasting performance with a typical wall thickness of .244" and weighs 1.66 lbs./ft.

Professional Features & Benefits

  • Heavy-Duty Dimensions: 6" wide x 1/4" tall profile designed specifically for high-load applications and vehicular traffic areas.
  • Premium Construction: Aluminum alloy 6063, T5 temper provides exceptional strength and corrosion resistance for demanding commercial environments.
  • Enhanced Safety Design: Fluted top surface delivers improved traction and slip resistance for safe pedestrian and equipment passage.
  • Forklift-Ready Performance: Engineered to withstand forklift and vehicular traffic loads in delivery and storage doorway applications.
  • Professional Installation: Includes #10 x 1-1/2" FH zinc plated wood screws for secure mounting with .244" typical wall thickness compatibility.
  • Durable Mill Finish: Standard mill finish provides long-lasting appearance and performance in commercial applications.
  • Optional Slip-Resistant Upgrade: SIA slip-resistant finish available for enhanced safety in high-traffic areas.

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

  • Warehouse and Distribution Centers
  • Loading Dock Facilities
  • Industrial Manufacturing Plants
  • Commercial Storage Facilities
  • Delivery and Receiving Areas
  • Heavy Equipment Access Points
  • Forklift Traffic Zones

Why Choose NGP Quality?

NGP threshold products deliver professional-grade reliability with aluminum alloy 6063, T5 temper construction engineered for heavy-duty commercial applications. The robust 6" x 1/4" profile with fluted top design provides exceptional durability rated for forklift and vehicular traffic loads. Engineered for demanding commercial applications where dependable performance and safety 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:
Thresholds - Saddle
Subcategory:
Thresholds
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 613HD-36 – Frequently Asked Questions

1) Will a 6 inch wide saddle threshold hold up to forklift traffic across a loading dock door?
That is exactly what the NGP 613HD is built for. It is a 6 inch wide by 1/4 inch tall saddle threshold in 6063-T5 aluminum alloy with a .244 inch typical wall thickness, and NGP recommends it for delivery and storage doorways with forklift or vehicular traffic. The fluted top gives traction underfoot and under wheels. A standard light-duty saddle at the same width will not carry that load; the heavy wall section is what does the work here.
2) What lengths does the NGP 613HD threshold come in, and will one cover a double door opening?
Five lengths: 36, 42, 60, 72 and 84 inches. A 36 inch piece covers a single 3-0 leaf. For a pair of 3-0 doors you want the 72 inch, and 84 inches covers a pair with frame width to spare. Aluminum saddle stock cuts down with a miter saw, so order the next length up and trim rather than piecing two together across an opening.
3) Does the NGP 613HD threshold come with fasteners, or do I need to buy anchors separately?
Screws are in the box: #10 x 1-1/2 inch flat head zinc plated wood screws. Those are wood screws, so they suit a wood subfloor or wood blocking. Over concrete you will want to add masonry anchors or lead shields sized to the same #10 screw, since the supplied wood screws will not hold in slab.
4) What is the closest equivalent to the NGP 613HD threshold in a 1/4 inch by 6 inch flat saddle profile?
The Pemko 272 Series is the direct match on profile: it is a flat saddle threshold in the same 1/4 inch high by 6 inch wide heavy-duty aluminum profile as the NGP 613HD, which runs 6 inches wide by 1/4 inch tall in aluminum alloy 6063, T5 temper. The difference to weigh is the walking surface. The 613HD carries a fluted top for traction under pedestrian and forklift traffic, while the Pemko 272 is described as an ADA compliant flat saddle. If you are matching an existing 6 inch saddle across a run of openings and the original had a ribbed surface, the 613HD keeps that texture; if the opening is a barrier-free path of travel where a flat top is what the drawing calls for, the 272 is the one to spec.
5) How high does the NGP 613HD sit above the floor, and does that create a trip hazard at an entry?
It stands 1/4 inch tall over a 6 inch width. That is a low, flat saddle profile rather than a raised bumper style, so it presents a shallow rise at the doorway. The fluted top surface is there for traction across that face.
6) Is the NGP 613HD threshold suitable for a residential entry door?
It is a commercial-duty part. The 613HD is catalogued for commercial use and its whole reason for existing is load: forklift and vehicular traffic at delivery and storage doorways. On a house entry it is overbuilt, and it is a bare mill aluminum saddle with no weatherstrip or seal element, so it will not do what a residential entry threshold does.
7) What is the difference between the NGP 613HD and the Pemko 272 saddle threshold?
Both are 1/4 inch by 6 inch heavy-duty aluminum saddle thresholds, so they occupy the same footprint at the opening. The Pemko 272 Series is described as ADA compliant; the NGP 613HD is the one specifically recommended for forklift and vehicular traffic with a .244 inch wall and a fluted top. If the deciding factor on your job is the accessibility spec on the drawing, look at the 272; if it is wheel load through a dock door, the 613HD is the profile written for that.
8) What is the difference between the Cal-Royal CR2000 and CR3700 saddle thresholds when neither the NGP 613HD nor a standard saddle will pass inspection?
Both are Cal-Royal saddle thresholds and both address fire rated openings, but they are described differently. The CR2000 Series is a fire rated and ADA compliant saddle threshold, so it answers both the rating and the barrier-free requirement in one part. The CR3700 Series is specified with a 3-hour positive pressure fire rating, which is the one to reach for when the opening is assigned a 3-hour rating and the assembly must be tested under positive pressure. For an MRO or institutional buyer standardizing a facility, the practical sort is: barrier-free path of travel with a rating to satisfy goes to the CR2000, and the highest rated openings, typically stair and shaft enclosures, go to the CR3700.
9) I need a 6 inch saddle threshold that meets ADA at an accessible entrance - is the NGP 613HD or the Pemko 272 the right call?
The Pemko 272 Series is the one described as ADA compliant, and it is a flat saddle in the same 1/4 inch by 6 inch heavy-duty aluminum profile, so you are not changing the width of the saddle or the way it sits in the opening. The NGP 613HD is the same 6 inch by 1/4 inch footprint but is a fluted-top heavy duty saddle recommended for forklift and vehicular traffic in delivery and storage doorways. For a property manager replacing saddles across a building, that means one 6 inch profile can carry through the whole job: the 272 at the accessible public entrances, the 613HD at the service and receiving doors where equipment crosses. The rough opening and the 1/4 inch height stay consistent either way.
10) What finish does the NGP 613HD ship in, and can I get a non-slip surface on it?
Mill aluminum is the stock finish across all five lengths, and it is the only finish shown on the standard offering. NGP also lists an SIA slip-resistant finish as an option on the 613HD for wet or high-traffic openings where the fluted top alone is not enough.
11) Will mill aluminum hold up in a wash-down or exterior dock environment?
The 613HD is extruded from 6063-T5 aluminum alloy, which NGP calls out for corrosion resistance in commercial environments. Mill finish is the raw extruded surface, so it will grey and dull outdoors over time without failing structurally. If the concern is footing on a wet dock apron rather than the metal itself, the SIA slip-resistant finish option is the one to specify.
How fast can I get the NGP 613HD-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 613HD-36 come with a warranty?
Absolutely. The NGP 613HD-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 613HD-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 613HD-36 from ZenSupply?
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