Heavy-Duty Threshold, Fluted Top, 4 ft. L MPN:325HD-48"
Heavy-Duty Threshold, Fluted Top, 4 ft. L
Protect your doors and enhance your home's curb appeal with National Guard's Heavy-Duty Threshold. This 4 ft. long, fluted top threshold is made from durable aluminum, featuring a mill finish silver color that complements any style. Easy to install with included #10 x 1-1/2 in FH zinc wood screws, this threshold provides a secure seal against drafts and moisture. Ideal for residential and commercial applications, it fits doors up to 48 in wide and meets strict safety standards, including UL10B and UL10C fire ratings. Perfect for new construction or replacement, this threshold ensures a seamless door-to-floor transition.
Top product features:
- Fluted top design for added traction and slip resistance
- Made from aluminum for durability and corrosion resistance
- UL Listed for fire safety and meets various national standards for accessibility and fire resistance
Top product applications:
- Door Bottom Seal
- Commercial Door Threshold
- Exterior Door Threshold
Door Threshold, Surface Type Fluted Top, Mill Finish, Color Silver, Width 5 in, Height 1/2 in, Length 4 ft, Fits Door Width 48 in, Thickness 0.25 in, Material Aluminum, Standards ANSI/BHMA A156.21, ANSI/BHMA, CAN/ULC S104, IBC, ICC/ANSI A117.1, NFPA 252, NFPA 80, UL Listed, Yes, Includes #10 x 1-1/2 in FH Zinc Wood Screws, UL Fire Rating UL10B, UL10C
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 50.00
- Package Width: 5.00
- Package Height: 3.00
- Package Weight: 7.40
Product info last updated on March 1, 2026 10:42am UTC
Category: Door Hardware and Components