Threshold Extender (73" to 120" Width)
Get the right size
Check what you need before you order with our step-by-step installation guides.
See the installation guidesStill unsure? With Guaranteed Fit, a door expert confirms your size before you order. How it works
Configure
Cut to your width
Enter the finished width. We cut it in our shop before it ships.
Estimated delivery
Ships in about 2 weeks, then 2 to 4 business days with ground shipping.
How we estimate
Most in-stock items that need no shop work leave our warehouse the same or next business day. Ordering by 12 pm Eastern, Monday to Friday, gives yours the best chance of shipping the same day.
Shop work starts once everything is in stock: trimming, cutting or prep takes 1 business day, finishing (priming, painting or staining) 1 to 3, and assembly, such as a prehung door system, 2 to 5. Out-of-stock items without a restock date usually ship in about 2 weeks, plus any shop work.
Ground parcels take 2 to 4 business days. Doors, sidelites and other large items go by freight: Priority Freight takes 2 to 5 business days and economy freight 7 to 15; you choose at checkout. Weekends and carrier holidays aren't counted. These are estimates, not guarantees.
5-year limited warranty. Details
- Built to order: not returnable, and it can't be cancelled once we start work. Return policy
- Questions about fit? Call or text a door expert at 513-871-8907.
Extension for low-profile and high-dam 5.75" depth thresholds 73" to 105" wide. Also fits outswing thresholds. Allows the threshold to be used where more depth is needed (thicker walls like stucco, 2x6 framing, etc.). Select aluminum mill or bronze finish.
Made to order and cut to your width, from 73" to 105" (to the nearest 1/16"). It should match the threshold's width exactly, and can be trimmed with a hand saw as needed.
Need one longer than 105"? Extenders that long ship by freight: call us at (513) 871-8907 and we'll quote one for pickup or with a door system.
NOTE: ONLY WORKS WITH 5.75" DEPTH THRESHOLDS, NOT COMPATIBLE WITH 8" DEPTH THRESHOLDS
CUSTOM ITEM MADE TO ORDER AND CUT TO LENGTH - CANNOT BE CANCELLED OR RETURNED
Extension sizes:
- 3/4"
- 1-1/16"
- 2"
- 3-1/4"
- 4-3/8"
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Product Type
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Use
This product carries a 5-year limited warranty against defects in materials and workmanship, from the date you buy it. Coverage is full for the first year, then prorated.
- Install it as the manufacturer directs, in the USA. Damage from improper installation, storage or modification isn't covered.
- To claim, use the form on our warranty page within 60 days of finding the defect, with your order number.
Shipping
Ships by ground parcel with UPS, FedEx or USPS: 2 to 4 business days once it leaves us. Tell us about any shipping damage within 15 days of delivery.
We cut or prep it in our Cincinnati shop before it ships, and the delivery estimate above includes that time.
Free pickup at our Cincinnati warehouse is available at checkout.
Returns
Doors we prep, cut, finish or assemble to your order can't be returned. You can cancel free of charge until we start work; after that the order can't be cancelled or refunded.
Get it right the first time
Questions before you order?
- MeasureMeasuring guidesSlab, door system, glass and weatherstrip measurements, step by step.Read the guides
- Guaranteed FitHave us confirm your fitSend your measurements and a photo. We confirm the product that fits before you order.Check my fit
- Talk to usCall or text 513-871-8907Talk to the same team that builds and ships your order.Contact us
