Mar-Flex STONEWELL Egress Well 75″ x 49.5″ x 64.5″ – Maintenance Free, code compliant with built in steps
Transform Your Garage or Basement Safety
Enhance your below-grade garage or workshop with a durable, maintenance-free egress window well engineered for lasting safety and clean, professional appearance. Its one-piece polyethylene construction features built-in steps for quick emergency exit and a realistic stone texture that complements commercial or residential exteriors.
The wide design fits large below-grade windows, resists soil pressure, and won’t rust, dent, or corrode—delivering decades of reliable performance, improved ventilation, and added property value.
The wide design fits large basement windows, resists soil pressure, and won’t rust, dent, or corrode—providing decades of reliable performance and improved property value.
What’s Included
- One (1) one-piece polyethylene egress window well
- Pre-formed mounting flanges for installation
(Mounting hardware kit and cover sold separately.)
- Integrated step system for emergency exit
- Built-in stone-textured exterior finish
Key Benefits
Reliable Emergency Egress – Built-in steps provide a safe and easy exit that meets current building code requirements.
Durable One-Piece Construction – Heavy-duty polyethylene design resists rust, dents, and corrosion.
Dual-Wall Strength – Withstands soil pressure and shifting for long-lasting structural integrity.
Easy, Leak-Free Installation – Seamless construction eliminates weak joints and reduces installation time.
Realistic Stone Texture – Offers the look of natural stone without the cost, weight, or maintenance.
Improved Natural Light – Wide design and light-colored interior help brighten basement spaces.
Low Maintenance – No painting or rust treatment needed; built to perform for decades.
Optional Accessories – Compatible with protective polycarbonate covers for debris and weather control.
Code-Compliant and USA-Made – Meets egress safety standards and supports domestic manufacturing.
Maintenance Free
Built for decades of worry-free use, this window well requires minimal upkeep:
- No painting, sealing, or rust treatment needed.
- Simply rinse with water to remove dirt or debris as needed.
- Optional polycarbonate cover (sold separately) helps prevent leaves, pests, and rain buildup.
- UV-resistant surface prevents fading and cracking, even in harsh weather conditions.
Easy Installation
The window well arrives fully assembled as a one-piece unit, ready for professional installation. The seamless design eliminates weak points, leaks, and complex assembly steps.
For best results and to maintain warranty coverage:
- Use the WW-44180 installation hardware kit (sold separately).
- Follow the included installation guide for correct mounting and drainage setup.
- Professional installation is recommended to ensure compliance with building codes and optimal long-term performance.
Specs
Durawell Specs
| Overall Width | 75 inches |
| Top Projection | 49.5 inches |
| Total Height | 64.5 inches |
| Inside Width | 66 inches |
| Inside Bottom Projection | 34 inches |
| Window Compatibility | Up to 5 foot windows |
| Construction | Durable polyethylene with dual-wall design |
| Surface Texture | Realistic simulated rock finish |
| Assembly | One-piece unit, no assembly required |
| Installation Hardware | WW-44180 kit sold separately |
| Compliance | Meets building codes for below-grade living spaces |
| Certification | Build America Buy America Act (BABAA) certified |
| Optional Accessories | Polycarbonate cover available |
Manual
Mar-Flex Durawell Installation Manual
Looking for detailed information on installing the Mar-Flex Durawell? Then check out this installation manual below.
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