U Shaped Aluminum Door Bottom Sweep 1-3/4in x 36in - Weatherproof Seal

In this review the reviewer tested a set of four 36in U shaped door bottom sweeps intended for exterior use and found them best for homeowners seeking a simple, durable way to stop drafts and dirt at the bottom of standard 1-3/4in doors. The single biggest reason to buy is the combination of an aluminum channel with a resilient rubber strip that seals gaps effectively while remaining easy to trim and install; it is a straightforward fix that targets energy loss and keeps out dust and insects without replacing the door.

Key Features

• Aluminum and rubber construction: The metal channel provides strength and the rubber strip creates a pliable seal that resists daily wear and tear.
• Universal 36in length: Each sweep measures about 36in long and fits doors up to 1-3/4in wide, and it can be trimmed to size with common tools.
• Drip cap design: The U shaped profile sheds water away from the door bottom, helping prevent moisture ingress at the threshold.
• Energy efficiency: By sealing the gap under exterior doors the sweep reduces drafts and helps lower heating and cooling loss.
• Easy installation: Pre-drilled holes and included screws let the sweeps be screwed on quickly, or they can be attached with adhesive if preferred.
• Versatile mounting: Suitable for wooden, metal, or plastic doors and useful on front, patio, or garage entryways.

Who It's For

These door sweeps are aimed at homeowners, renters with permission to modify doors, and DIYers who need a low-cost, durable solution to stop drafts, insects, and light rain from entering under exterior doors. They are especially useful for front doors, patio doors, and secondary entry doors where a visible metal channel and rubber seal are acceptable.

Those who should look elsewhere include owners of very narrow or unusually thick doors outside the stated 1-3/4in compatibility without willingness to trim, and buyers seeking a fully concealed sweep or an integrated threshold replacement - this product is a screw-on U shaped sweep designed to be visible and functional rather than decorative.

Pros & Cons

Pros

• Durable aluminum body combined with a flexible rubber strip provides a long-lasting seal.
• Pre-drilled holes and included screws make installation quick with basic tools.
• Trim-to-fit length and universal mounting make it adaptable to most exterior doors.
• Effective at reducing drafts and keeping out dust, insects, and light rain.

Cons

• The rubber strip can slide inside the channel unless fixed with adhesive, adding an extra installation step for some users.
• The silver metal channel is visible and may not match all decorative door styles.

Specifications

Material	Aluminum and rubber
Color	Silver and gray
Length	About 36in
Width (base)	About 1-3/4in
Package contents	4 x door bottom sweep, screws
Suitable door types	Wood, metal, plastic exterior doors

Our Verdict

This set of U shaped aluminum door sweeps is a practical, cost-effective pick for anyone wanting to improve door sealing and reduce energy loss without complex work. The durable materials, easy installation, and ability to trim to size make it good value for exterior doors where a visible metal sweep is acceptable; just plan to secure the rubber strip with adhesive if you want the tightest long-term hold.

Frequently Asked Questions

Can these be trimmed to fit shorter doors?
Yes, the aluminum channel and rubber strip can be cut down with regular tools to fit shorter doors, and the product is sold in a 36in length.

Will it work on metal or plastic doors?
Yes, the sweeps are suitable for wooden, metal, or plastic doors and include screws for secure mounting.

Is adhesive required?
Adhesive is optional but recommended to prevent the rubber strip from sliding inside the channel for a more secure long-term seal.