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M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver
M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver
M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver

M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Enhance your home with the M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver for improved durability and style.
M-D Building Products MPN 08409 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $18.99. Our online price is $20.99.
$20.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Upgrade your home’s entryway with the M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver. This high-quality threshold not only enhances the aesthetic appeal of your doorway but also provides superior functionality and durability.

Crafted from a combination of robust aluminum and vinyl materials, this threshold is designed to withstand the test of time while effectively sealing gaps to prevent drafts, dirt, and moisture from entering your home. Its sleek silver finish adds a modern touch, making it perfect for any décor style.

  • Dimensions: Height: 1.125 in., Width: 3.375 in., Length: 36 in.
  • Material: Durable aluminum with a vinyl seal for enhanced weather resistance.
  • Easy Installation: Comes with hardware included for a hassle-free setup.
  • Single Package: Each order includes one high boy threshold.

Ideal for both residential and commercial use, the M-D Building Products 1.125 in. H X 3.375 in. W X 36 in. L Aluminum/Vinyl High Boy Threshold Silver not only improves energy efficiency but also offers a seamless transition between rooms or from outdoors to indoors. Don’t let the cold or heat in—invest in security and comfort today!

Enhance your entryway and experience the difference. Order your M-D Building Products threshold now and enjoy a more comfortable home!

The Details Specifications

Brand M-D Building Products
SKU 51297
UPC 043374084092
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 36 × 3 × 1
Weight 2 lbs
Cubic Feet 0.07333 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
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The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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