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Continue ShoppingKnee Wall Access Door
Contact us for availability!
Please check refund policy before purchasing.
Contact us for availability!
Please check refund policy before purchasing.
FAKRO Knee Wall Access Doors are designed to provide convenient access to attic storage areas, crawl spaces, and non-habitable areas behind knee walls. Available in multiple performance levels, including insulated and fire-resistant models, these doors offer a clean finished appearance, strong air tightness, and excellent thermal performance.
Designed for installation in L-shaped walls. Offers good thermal insulation, high air tightness, and comes standard with lining slats for a clean finished look.
Fire-resistant knee wall access door designed for vertical walls. Provides 45-minute fire resistance according to EN 13501-2 EI145 classification.

Highly energy-efficient knee wall access door with thicker insulation and superior R-value performance for improved heat retention.

Models can be installed with either right-hand or left-hand opening for flexible jobsite installation.
| Model | U-Value | Insulation Thickness | R-Value |
|---|---|---|---|
| DWK | 0.19 BTU/h·ft²·F | 1 1/8" | R-5.2 |
| DWF | 0.11 BTU/h·ft²·F | 2 3/8" | R-8.9 |
| DWT | 0.11 BTU/h·ft²·F | 2 3/8" | R-9.5 |
| Size | 21 x 31 | 27 x 35 | 24 x 43 | 27 x 43 |
|---|---|---|---|---|
| Rough Opening | 21 1/2" x 31 1/4" | 27 1/2" x 35 1/4" | 24 1/2" x 43 1/4" | 27 1/2" x 43 1/4" |
| Frame External Dimensions | 21" x 31" | 27" x 35" | 24" x 43" | 27" x 43" |
| Frame Internal Dimensions | 19" x 28 3/4" | 24 3/4" x 32 3/4" | 21" x 40 1/2" | 24 3/4" x 40 1/2" |
| Frame Depth | 3 3/8" | 3 3/8" | 3 3/8" | 3 3/8" |
| Frame Thickness | 1" | 1" | 1" | 1" |
Helps reduce heat loss between conditioned spaces and attic or storage areas.
Designed for fast, professional installation with a clean finished appearance.
Helps improve energy performance by limiting unwanted air movement.
DWF model provides 45-minute fire resistance for added safety.
Universal design allows installation for either opening direction.
Standard finishing lining helps create a neat, professional installation.
