Thresholds
A door threshold bridges the gap between the door bottom and the floor, keeping out drafts, water, and debris while providing a smooth transition between surfaces. Height and width are the critical measurements. Too tall and the door drags, too short and you lose the seal. Aluminum and hardwood are the most common materials, with aluminum holding up better on exterior doors exposed to weather and foot traffic, and wood offering a cleaner look on interior thresholds or finished entryways. M-D Building Products is a reliable name for standard residential threshold replacements in most common sizes.
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M-D Silver Fluted Aluminum Flooring Seam Binder 1-1/4”x36”
$6.42 + Add to CartSKU: 58381
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M-D Aluminum Pewter Carpet Trim 2”x72”
$12.74 + Add to CartSKU: 5895792
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M-D Satin Brass Fluted Aluminum Carpet Trim Bar 1-3/8″x6′
$12.84 + Add to CartSKU: 53934
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M-D Satin Silver Aluminum Stairnose Edging 1-1/8”x3’
$7.42 + Add to CartSKU: 55633
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M-D Silver Fluted Aluminum Carpet Trim 2”x72”
$14.84 Awaiting RestockSKU: 3749017
Helpful Questions & Answers
Find answers to common questions about Thresholds from the Nixa Hardware & Seed Co team.
How To Clean Aluminum Door Threshold
Aluminum Thresholds take a lot of abuse from foot traffic and the red clay typical of Christian County. For a standard cleaning, a simple mixture of warm water and mild dish soap is usually sufficient to break down the everyday grime. If you notice white, powdery spots—which are a sign of aluminum oxidation—a solution of equal parts water and white vinegar will help dissolve the buildup without damaging the metal. Use a nylon scrub brush to get into the grooves where dirt likes to hide, then wipe it dry with a clean rag. Regular maintenance keeps the metal looking sharp and prevents the pitting that can occur when salt and grit are left to sit on the surface for too long.
What To Put Under Door Threshold
Beyond just insulation, it is crucial to install a proper moisture barrier, such as a sill pan or metal flashing, beneath your Thresholds. This prevents rainwater from seeping into the subfloor, which is a leading cause of wood rot in homes throughout the Springfield metro area. If the subfloor is slightly uneven, you might also need to use thin cedar shims or a bedding compound to provide a solid, level foundation for the threshold to sit on. A threshold that flexes or bounces when stepped on will eventually leak and fail. Ensuring the area is properly supported and waterproofed before you screw the hardware down will save you a massive amount of repair work on your floor joists in the future.