Internet #202075669

Model #L9

Store SKU #373223

34 - 37 in. x 45 - 60 in. Adjustable Aluminum Window-Well Grate

  • Durable aluminum construction for lasting use
  • Supports weight up to 400 lbs.
  • Fits 45 to 60 in. L x 34 to 37 in. D metal window walls
  • See More Details

Frequently Bought Together


Product Overview

The Adjust-A-Grate Model L9 fits inside window well openings that project from the house 34 – 37 in. and have an opening of 45 – 60 in. along the house (USE INSIDE DIMENSIONS). This adjustable aluminum window well grate works best for METAL OR CONCRETE WELLS WITH ROUNDED FRONT CORNERS. These are NOT RECOMMENDED for RECTANGULAR wells as the first set of "loops" is shorter to accommodate a radial corner. These window well grates fit a variety of well contours and sizes within the range to provide a custom fit at a reasonable cost. This grate is designed to protect your family, animals, and home from the hazards of an open basement window well without having to purchase expensive custom window well covers. This adjustable window well grate is made of tempered aluminum and is strong enough to support up to 400 lb., preventing people, larger animals, and things from falling into the well. Yet, this aluminum window well cover is light enough to allow quick escape in an emergency and has open ventilation to allow natural light and air to flow into the basement window. Made of tempered aluminum, this window well grate won't rust or require painting, doesn't get cloudy or weaken like plastic in the sun's harmful UV rays, and because it allows for ventilation it won't collect dirty water, lawn debris, or dirt that block natural light to the basement.
  • Protects from the hazards of open basement window wells
  • Designed for metal window wells with large radius front corners that measure 45 - 60 in. in length along the house at the back of the well and 34 -37 in. projection from the foundation in the center of the well.
  • Not intended for use on wood, concrete or block rectangular-shaped window wells - front "loops" that run parallel to the house & "supports" running perpendicular to the house are sized to accommodate the curvature of a standard metal well.
  • Adjusts for a custom fit, allowing it to fit a variety of contours on a metal window well with ease
  • Lightweight enough to be moved out of the way in case of an emergency - just lift & push
  • Quick and easy to install with the included hardware and no special tools required
  • High-quality, tempered, maintenance-free, aluminum construction provides strength and durability
  • The design allows up to 90% of natural sunlight to enter the basement window well
  • Provides security as a break-in deterrent (When used with the optional security kit, not included)
  • Supports up to 400 lb. when properly adjusted and installed
  • Installation video and instructions provided with U.S. based customer support
  • In order to determine the correct model of Grate your window well needs, make sure that you are measuring from the concrete foundation out to the window well (inside dimension) and lengthwise along the house – again the inside dimension. Make sure that you measure every well, as there can be different sizes of window wells even on the same house
  • If using this product with casement (crank out) windows ensure that the top of the window is at least 2 inches below the surface of the window well. Anything less indicates the grate would prevent the window from opening in an emergency.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.



Product Height (in.)
Product Length (in.)
Product Width (in.)


Product Weight (lb.)
Weight Capacity (lb.)
400 lb
Window Well Part

Warranty / Certifications

Manufacturer Warranty
Adjust-A-Grate warrants that it will replace any part of this product, that proves defective in material or workmanship within ten years from date of purchase by a consumer. Adjust-A-Grate assumes no responsibility for the results of improper installation or abnormal use.

Questions & Answers


Does the use of adjust-a-grate (when used with aluminum ladder) meet most codes for egress basement window? Is there a mount or counterweight option?

Asked by Henry February 19, 2021

Is this cover/grate considered an EGRESS window well cover when building a new home that requires...

Asked by carole September 22, 2019

Yes. The only code requirement I could find was "shall be removable without special tools", a requirement this grate clearly meets. Weight will vary by size; the ones I have weight about 25 lbs.

I not only want to keep young children from falling into my window well (about 30" deep), but I a...

Asked by Andy April 14, 2019

just what we were looking for. Very easy to install

I would like to use this on a 36x 42" steel egress windo well. Is it okay for the grate to be big...

Asked by ang November 2, 2018

It is adjustable both length and width. It is designed to overhang the well material as that is what the grate sits on. It should work well for your application.

Why isn't this intended to use on wood? Wood seem to be a good application for any type of windo...

Asked by BD January 18, 2018

I have only seen metal basement window wells. Wood might rot/decay too quick with the moisture.

I currently have these and would like to make them sit higher on the metal window well so that we...

Asked by helloworld August 18, 2017

Depending on how high the window is in the well - it may be possible for the brackets on the back of the grate to be installed on the bottom of the grate rather than on the top. Please call Adjust-A-Grate on our toll free number (1-888-877-4728) for further instructions on how to best accomplish this.

Installation require any sort of drilling? TIA

Asked by Sharpie September 19, 2016

Not if you're putting it on a steel window well. The only tools you need are a 7/16" wrench and a pencil.

where do i find the installation manual

Asked by JJ September 21, 2015

Can I buy two for same widow and lock in center ?

Customer Reviews

  • 4.7
    out of 71 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 71 reviews
I installed 2 of these adjustable grates over my window wells that are approximately 4 feet deep ...
I installed 2 of these adjustable grates over my window wells that are approximately 4 feet deep which would be difficult for a child or small animal to get out of. I also installed the ladders and have the security kits as well but have not put those in yet. Not sure if the 400+ pound weight support capability advertised is realistic but IMO these are a better deal than some other higher priced alternatives available that would have cost significantly more as well as shipping costs.
by Marco
2 people found this helpful
Great cover for our well windows!
We have been looking at a lot of alternatives for window well covers, many much more expensive. However, these grates work better than we could have hoped. They were not very hard to adjust and when done, look very custom. They sit down in the well just enough and have enough weight that the high winds don't bother them. They also seem very strong. I was able to stand on them and felt secure they would hold. It is nice too, to be able to open the window and not affect the fresh air coming in. I think they will hold up and look good for a long time. Great investment and highly recommended!
by McCO
5 people found this helpful
A grate solution
This window well cover is a better solution than those plastic covers that become brittle and discolored over time. I have oversized window wells with large basement windows that let in lots of light, so I wanted something that would allow light to pass through. These Adjust-a-Grate covers are a little more pricey, but they are built to last.
by skidog1952
9 people found this helpful
Sturdy and relatively easy to install...
Sturdy and relatively easy to install
by AK
I was very impressed with how well this was engineered....
I was very impressed with how well this was engineered. And the design is perfect for those of us with slightly deformed wells. It wasn't easy to customize it, but it was not too hard either. Anyone who is at least moderately mechanically inclined can do this.
by KennyPowers55
Fit perfectly. Easy to install....
Fit perfectly. Easy to install.
If you follow the instructions closely, which are exceptionally clear and accurate, installation ...
If you follow the instructions closely, which are exceptionally clear and accurate, installation is a snap. There is a video (on the Adjust-A-Grate site, I believe) that is worth watching. The product is very high quality. I am a pretty picky guy, but this was an exceptional product.
by BoCoKeith
I am very impressed with the product. The contractor thought...
I am very impressed with the product. The contractor thought it was a good idea to 'nudge' the window well to try and force the original grate to fit. Needless to say, it didn't work, leaving me with a slightly non-uniform opening. The Adjust-a-Grate fits perfectly. And since it's aluminum, it's much lighter than the angle iron and rebar grate. This product is really slick; I'm really happy with how they have worked (I got two).
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Detailed instructions, very easy to adjust grate to the different...
Detailed instructions, very easy to adjust grate to the different openings, provided material needed for measurements to assure proper fit.. I highly recommend this product.
by RoadRash
Showing 1-10 of 71 reviews