Window Well Cover Options for Egress Windows
Last updated
Any window well cover over an egress well must leave the escape opening operable from inside without keys or tools, and the well must stay usable as an escape route.
Informational only. No prices or product ratings are published here.
The rule that matters
An escape opening must be operable from inside without keys or tools, and an egress well must stay usable as an escape route (2024 IRC R319 via Jefferson County). Confirm the cover and grate release requirements with your building department.
Common cover types
| Type | What it is | Questions to ask |
|---|---|---|
| Clear dome or flat cover | Rigid clear panel over the well | Can someone in the well push it open? Does it shed snow? |
| Metal grate | Bar grate that keeps people and pets out | Does it lift from below without tools? Is it hinged? |
| Hinged or gas-assisted cover | Cover that props open | Does the hinge leave the full well dimensions clear? |
| Custom-fit cover | Sized to a non-standard well | Does it fit the well after the egress enlargement? |
Well sizing to fit the cover to
- Wells deeper than 44 in need a permanently fixed ladder or steps that the open window doesn't block (Jefferson County).
- Arapahoe County lists a minimum well of 9 sq ft with a 36 in minimum dimension (Arapahoe).
Historic Denver homes
Visible changes in a Denver landmark or historic district may need design review (Denver Landmark egress review).
Related
Window well covers · Window well installation · Rentals and ADUs
Services
Egress windows · Window wells · Covers · Basement egress · Code guide
Frequently asked questions
What rule matters most for an egress well cover?
An escape opening must be operable from inside without keys or tools, and an egress well must stay usable as an escape route (2024 IRC R319). Confirm the specific cover rules with your building department.
What cover types are common?
Clear dome or flat covers, metal grates, hinged or gas-assisted covers, and custom-fit covers sized to a non-standard well.
How big is the well the cover has to fit?
Arapahoe County lists a minimum well of 9 sq ft with a 36 in minimum dimension, and wells deeper than 44 in need a permanently fixed ladder or steps.
Do historic Denver homes need review for covers?
Visible changes in a Denver landmark or historic district may need design review.