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NGP 429E Saddle Threshold Mill Aluminum 1/2" x 9" with Fluted Top
Model: NGP-429E
NGP 429E Saddle Threshold Mill Aluminum 1/2" x 9" with Fluted TopProfessional Door Threshold SolutionThe NGP 429E Saddle Threshold delivers commercial-grade door sealing performance with...
NGP
Starting at
$118.50
$118.42
NGP 427 Saddle Threshold 1/2" x 7" Mill Aluminum with Fluted Top
Professional Door Threshold Solution
The NGP 427 Saddle Threshold delivers professional-grade door transition performance with precision-extruded aluminum alloy 6063 construction in T5 temper. Measuring 1/2" tall by 7" wide with a fluted top surface, this threshold features typical wall thickness of .188" and weighs 1.16 lbs./ft. for reliable installation. Mill aluminum finish provides durability for commercial applications with optional SIA slip-resistant finish available for enhanced safety in hazardous conditions.
Professional Features & Benefits
- Precision Dimensions: 1/2" x 7" profile designed for standard door openings with fluted top surface for enhanced grip and water management.
- Heavy-Duty Construction: Aluminum alloy 6063 with T5 temper provides exceptional durability and corrosion resistance for long-term performance.
- Engineered Wall Thickness: Typical .188" wall thickness ensures structural integrity while maintaining optimal weight at 1.16 lbs./ft.
- Complete Installation Package: Includes #10 x 1-1/2" FH zinc plated wood screws for secure mounting to various substrates.
- Versatile Finish Options: Standard mill aluminum finish with optional SIA slip-resistant finish available for areas where safety is a priority.
- Fluted Top Design: Textured surface provides improved traction and facilitates water drainage in exterior applications.
- Commercial-Grade Performance: Engineered for demanding commercial applications requiring reliable door transition solutions.
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 products deliver professional-grade reliability with precision-extruded aluminum alloy 6063 construction and T5 temper rating for superior durability. The fluted top design and optional slip-resistant finish options demonstrate NGP's commitment to both performance and safety. Engineered for demanding commercial applications where dependable door transition performance 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 427-36 – Frequently Asked Questions
1) Will the NGP 427 saddle threshold cover a standard 36 inch door opening?
Yes. The 427 comes in eight cut lengths, and 36 inches is one of them, so it drops straight across a standard 3-0 opening with no cutting. The other stock lengths are 48, 72, 80, 84, 88, 96 and 108 inches, which covers pairs of doors and wide storefront openings too. Aluminum extrusion cuts down cleanly with a miter saw if your rough opening falls between sizes, so order the next length up rather than piecing two together.
2) How high does the NGP 427 threshold sit above the floor, and is that a trip issue?
The 427 profile is 1/2 inch tall by 7 inches wide. That half inch is the full rise at the peak of the saddle, and the 7 inch width spreads that rise over a long, gentle ramp on each side. For openings where you need a lower rise, Pemko's 272 Series flat saddle threshold runs 1/4 inch by 6 inches instead.
3) Do I need to buy screws and anchors separately for the NGP 427 threshold?
Screws come with it. Each 427 threshold ships with #10 x 1-1/2 inch flat head zinc plated wood screws. Those are wood screws, so they land straight into a wood subfloor or wood sill. Over concrete you will need your own anchors, typically a sleeve or lead anchor sized to a #10, since the supplied fasteners have nothing to bite into.
4) I need a fire rated threshold for a labeled door opening. Is the NGP 427 the right choice?
Look at a different unit for that. If the opening carries a fire label and the spec calls for a rated threshold, Cal-Royal's CR3700 Series saddle threshold is built with a 3-hour positive pressure fire rating, and the Cal-Royal CR2000 Series is a fire rated and ADA compliant saddle. Both are saddle thresholds like the 427, so the install is the same kind of work.
5) What is the fluted top on the NGP 427 saddle threshold for?
Traction and drainage. The fluting is a textured, ribbed surface running the length of the saddle, so wet boots get grip instead of skating across bare aluminum, and water sheds down the flutes rather than pooling on a flat plate. It matters most on exterior entrances. For a hazardous or high-slip area, NGP offers the 427 with an SIA slip resistant finish in place of the standard mill aluminum.
6) What is the difference between a saddle threshold and a flat threshold for a door opening?
A saddle is a raised, sloped profile that crowns in the middle under the door and ramps down on both sides. It gives the door a bearing surface to seal against and keeps water and draft from running under, which is why it goes on exterior and weather-exposed openings. The NGP 427 is that type, at 1/2 inch tall by 7 inches wide with a fluted walking surface. A flat saddle, like the Pemko 272 Series at 1/4 inch by 6 inches, is a low plate that mainly covers the floor joint and transition between two finished floors. If you are sealing weather, take the raised saddle; if you are just covering a seam on an interior opening, the flat plate is less to step over.
7) Can I use one NGP 427 threshold across a pair of doors?
Yes, and the long lengths exist for exactly that. The 427 runs up to 108 inches in a single piece, so a pair of 3-0 doors at 72 inches of leaf plus frame is covered by one continuous extrusion with no seam under the astragal. Running it in one piece is the better install on a pair, because a butt joint at the meeting stile is where water finds its way through.
8) What does mill aluminum finish look like, and will it match my other thresholds?
Mill finish is raw, unfinished aluminum straight off the extrusion press, a dull silver grey with no anodizing or coating on it. It is the standard look on commercial thresholds, so a 427 will read the same as most existing aluminum saddles in a building. It will not match a dark bronze or anodized black threshold, and it will weather to a slightly duller grey outdoors over time. If you are standardizing a fleet of openings, run mill on all of them rather than mixing in an anodized unit.
How fast can I get the NGP 427-36 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 427-36 come with a warranty?
Absolutely. The NGP 427-36 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 427-36?
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Why buy the NGP 427-36 from ZenSupply?
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