What size/width slot is required for pushing the plastic edge into?

Not sure what width you are asking about. If you are talking about the channel it goes into it is pretty much standard size which is a groove you press the flange into. The only width/gap you need to make sure of is the door to the frame which is about 5/8. Close your door and measure the spacing. I used this to replace the original of 37 years old and it fit like a charm. Very satisfied, looks good and will stop any air leaks. Hope this helps.

The groove you press the flange into should be installed first, because regular doors do not have it, right?

Actually our door had a groove and we just replaced the old stripping that the cats had shredded. Easy and worked great

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Fingwerk 40 Feet WhiteD-Shape Rubber Weather Stripping

Product ID: 557089077

Details

Brand
Fingwerk
Color
White
Item Thickness
0.23 Inches
Material
Rubber
Product Dimensions
480"L x 0.35"W

📏40 feet length for full coverage

❄️Flexible rubber resists extreme temps

🛠️Self-adhesive backing for easy install

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Description

🚪 Seal the deal on comfort and savings—don’t let drafts crash your vibe!

ALL IN ONE 40 FEET SEAL - Covers large door/window gaps effortlessly with a generous length.
CUSTOM FIT CUT TO SIZE - Easily trim with scissors for a perfect, tailored seal every time.
PEEL STICK SIMPLICITY - Super strong adhesive ensures a hassle-free, no-tool installation.
MULTI PURPOSE INSULATION - Blocks drafts, dust, noise, and cold—boosts comfort and cuts energy bills.
WEATHERPROOF FLEXIBILITY - Rubber material stays durable—won't crack or freeze in any climate.

The Fingwerk 40 Feet Rubber Weather Stripping Door Seal Strip is a durable, self-adhesive D-shaped rubber seal designed to insulate door and window frames. Measuring 40 feet long with a 0.35-inch width and 0.23-inch thickness, it fits gaps from 2.5 to 5.5 mm. Its flexible, weather-resistant material prevents drafts, dust, noise, and cold, improving home comfort and energy efficiency. Easy to cut and install, it sticks firmly after 24 hours and withstands extreme temperatures without cracking.

Specifications

ASIN	B0CDLBFJ25
Best Sellers Rank	#8,185 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #53 in Weather Stripping
Brand	Fingwerk
Brand Name	Fingwerk
Color	White
Customer Reviews	4.2 out of 5 stars 2,708 Reviews
Included Components	Bag
Item Dimensions L x W	480"L x 0.35"W
Item Thickness	0.23 Inches
Item Type Name	Portable
Manufacturer	Fingwerk
Manufacturer Part Number	FD40W
Material	Rubber
Material Type	Rubber
Model Number	FD40W
Number of Items	1
Product Dimensions	480"L x 0.35"W
Recommended Uses For Product	door and window frame insulation, preventing wind, dust, sound, and cold
Unit Count	40.0 Feet

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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24721CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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