Best Egress Window Metal Grates for Basement Window Wells
The best egress window metal grate is one sized to fit the window well without blocking required emergency access. The Adjust-A-Grate L6 suits a narrower, shallow well, while the L8 fits a deeper well and the XL6 fits a wider opening. For buyers planning a complete egress installation, the Window Well Supply kit includes a steel well, cover, and ladder. A fixed interior security grill is a different product and should not be mistaken for an egress grate.
| Product | Best For | Key Measurement or Distinction |
|---|---|---|
| Adjust-A-Grate L6 | Shallower metal wells | 22–25 inches deep; 45–60 inches wide |
| Adjust-A-Grate L8 | Deeper metal wells | 30–33 inches deep; 45–60 inches wide |
| Adjust-A-Grate XL6 | Wider metal wells | 22–25 inches deep; 60–66 inches wide |
| Window Well Supply Kit | Full egress well installation | Steel well, cover, and ladder included |
| Segal Fixed Window Grill | Interior fall protection, not egress | Fixed design cannot be quickly removed |
Adjust-A-Grate L6 for Shallower Wells

The Adjust-A-Grate L6 is designed for metal window wells with large-radius front corners measuring 22–25 inches in projection and 45–60 inches wide. Its tempered aluminum construction is described as strong and durable, while its lightweight design allows it to be moved during an emergency. The grate is also designed to allow up to 90% of natural sunlight into the basement.
Best for: A buyer whose metal well falls within the L6 measurement range and who wants a grate that can be moved when needed. Choose this model over the L8 when the well is shallower. Limitation: It is not sized for wells outside the listed depth and width range, so measure the well and check its corner shape before choosing.
Adjust-A-Grate L8 for Deeper Wells

The L8 is the deeper-well option in this group. It fits metal wells with large-radius front corners measuring 30–33 inches in projection and 45–60 inches wide. Like the L6, it uses tempered aluminum, is described as lightweight enough to move in an emergency, and is designed to admit up to 90% of natural sunlight.
Best for: Buyers who need a grate for a deeper well but have a width within the 45–60-inch range. Select it over the L6 based on depth, not because the models are interchangeable. Limitation: The stated fit range excludes shallower wells and widths beyond 60 inches.
Adjust-A-Grate XL6 for Wider Wells

The XL6 fits metal window wells with large-radius front corners measuring 22–25 inches deep and 60–66 inches wide. It shares the L6’s stated depth range but covers a wider opening. Its tempered aluminum construction, emergency-movable design, and ability to allow up to 90% of sunlight are useful features for buyers comparing options for a broad, relatively shallow well.
Best for: A buyer whose well is wider than the L6’s listed range but still measures 60–66 inches across. Limitation: This model is not listed for wells deeper than 25 inches or narrower than 60 inches. Confirm the well’s actual dimensions before ordering.
Window Well Supply Complete Egress Kit

This is a complete egress window well kit rather than a standalone metal grate. The listed kit has a 42-by-36-by-48-inch corrugated steel well, a polycarbonate cover with aluminum bracing, and a five-rung ladder. The seller describes the 19-gauge steel as designed for heavy soil and backfilling, and the cover as having a 500-pound load capacity. Snap clips allow the cover to be attached or removed from either side.
Best for: Buyers assembling a new well who need a well, cover, and ladder together. It offers a broader installation solution than a grate alone. Limitation: It is not a replacement grate for an existing metal well; confirm the kit dimensions and project requirements before purchase.
Segal Fixed Grill for Interior Windows

This carbon-steel window grill is an interior window guard, not a window-well grate. It has fixed bars spaced 3-7/8 inches on center and an adjustable telescoping width of 32-1/2 to 54 inches before mounting. The product is designed to help prevent accidental falls through open windows.
Best for: Buyers seeking an interior security or fall-prevention guard for a window that does not require emergency exit through the guard. Important limitation: The manufacturer identifies this as a non-egress fixed guard that cannot be opened or quickly removed in an emergency. Avoid it where the window must serve as an emergency exit.
Buying Guide: How to Choose an Egress Window Grate
Which measurements should you take?
Measure the well’s width and projection or depth, and note the shape of its front corners. Compare those measurements with the product’s stated fit range. For example, the L6 and XL6 have the same listed depth range but different widths, while the L8 is designed for a deeper well. Do not rely on a general label such as “large” or “standard.”
Should you choose a grate, cover, or complete kit?
A grate is for covering an existing window well. A cover is a separate component, and a complete kit may include the well, cover, and ladder. Check what is included before buying. If replacing a grate, match it to the well’s dimensions and shape. If building a new egress well, compare the full kit’s dimensions and included parts with the project plan.
How should emergency access affect your choice?
Look for clear product information about moving or removing the grate. The Adjust-A-Grate models listed here are described as lightweight enough to move in an emergency. A fixed security grill is not equivalent: the Segal product is expressly described as non-egress. Local building requirements vary, so verify applicable egress rules with the local authority or a qualified professional.
Frequently Asked Questions
Can a metal grate cover an egress window well?
Yes, if the grate is designed for the well’s shape and measurements and does not prevent required emergency access. Confirm the product’s fit and access details before purchase.
What is the difference between the L6 and L8?
Both fit listed widths of 45–60 inches, but the L6 is for 22–25-inch projections and the L8 is for 30–33-inch projections.
When should I choose the XL6?
Choose the XL6 when the well is 22–25 inches deep and 60–66 inches wide, with the listed large-radius front corners.
Is a fixed window security grill an egress grate?
No. A fixed grill that cannot be quickly opened or removed may block emergency exit and should not be treated as an egress grate.
Do I need a complete window well kit?
Only if your project needs more than a grate for an existing well. A complete kit may include a well, cover, and ladder; check the listed dimensions and components.