These are our most common sizes of standard window well grates. Typically used for metal wells or metal wells that have had concrete poured around the well such as a sidewalk or patio.

How to select the correct standard model window well grate:

Step 1:

Measure your window well. Use inside dimensions only as Adjust-A-Grate products are designed to sit inside the opening of the window well. You need the projection out from the house in the center of the well, and the length across the back of the window well (along the foundation).

Step 2:

Using the chart below, select the window well shape and interior size range that matches your window well. The model shown will be the grate to use as your window well cover.

Please note the grates listed on this page are not intended for use on rectangular shaped wells if your well is rectangular – see the Rectangular Grates page. If your well is a precast concrete well with multiple sides, see the grates for precast wells here.

All dimensions listed are INSIDE measurements.

If your basement window well doesn’t match any of the models shown below, please contact us for alternatives.

MODEL S4

Short 4 Loop Grate

For the half moon shaped window well only.

Designed to accommodate wells 30″ to 40″ inches in length along the house and projecting out from the house 15″ to 18″.

There is no recommended Security Kit for Model S4

Price: $137.99

MODEL L4

Long 4 Loop Grate

Designed to accommodate metal or concrete wells 36″ to 52″ (inside dimensions) along the house and projecting 15″ to 18″ out from the house (inside dimensions).

Use Optional Security Kit Model SK6 with L4 Grate.*

* Security Kit will need to be modified for this size opening. Read more here.

Price: $165.99

MODEL L5

Long 5 Loop Grate

Designed to accommodate metal or concrete wells 45″ to 60″ (inside dimensions) in length along the house and projecting projecting 18″ to 21″ out from the house (inside dimensions).

Use Optional Security Kit Model SK6 with L5 Grate.*

* Security Kit will need to be modified for this size opening. Read more here.

Price: $185.99

MODEL L6

Long 6 Loop Grate

Designed to accommodate metal or concrete wells 45″ to 60″ (inside dimensions) in length along the house and projecting 22″ to 25″ out from the house (inside dimensions).

Use Optional Security Kit Model SK6 with L6 Grate.

Price: $196.99

MODEL XL6

Extra Long 6 Loop Grate

Designed to accommodate metal or concrete wells 60″ to 66″ (inside dimensions) in length along the house and projecting 22″ to 25″ out from the house (inside dimensions).

Use Optional Security Kit Model SK6 with XL6 Grate.

Price: $204.99

MODEL L8

Long 8 Loop Grate

Designed to accommodate metal or concrete wells 45″ to 60″ (inside dimensions) in length along the house and projecting 30″ to 33″ from the house (inside dimensions).

Use Optional Security Kit Model SK8 with L8 Grate.

Price: $235.99

MODEL XL8

Extra Long 8 Loop Grate

Designed to accommodate precast concrete wells 60″ to 66″ (inside dimensions) in length along the house and projecting 30″ to 33″ from the house (inside dimensions).

Use Optional Security Kit Model SK8 with XL8 Grate.

Price: $260.99

MODEL L9

Long 9 Loop Grate

Designed to accommodate metal or concrete wells 45″ to 60″ in length along the house and projecting 34″ to 37″ from the house. Use inside dimensions only when measuring.

Use Optional Security Kit Model SK9 with L9 Grate.

Price: $261.99

MODEL XL9

Extra Long 9 Loop Grate

Designed to accommodate metal or concrete wells 60″ to 66″ in length along the house and projecting 34″ to 37″ from the house. Use inside dimensions only when measuring.

Use Optional Security Kit Model SK9 with XL9 Grate.

Price: $269.99

Note: These grates are not intended for use on rectangular shaped wells if your well is rectangular – see the Rectangular Grates page.

Grates for Standard Metal Wells