Technical Specifications

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Sizes and Dimensions
One Module does it all
Modular system can be used on foundations of
up to ten foot and greater in depth.
Single modules work well with 16”, 20” & 24”
utility windows.
Simply select the number of
modules to determine the
assembled well height
Keyhole on Center = 53-1/2”
Inside Width = 49-1/2”
37-1/4”
to Inside Face of Well
33-1/4”
to Step/Grip
40-1/4”
Projection from
Foundation
Copyright 2010. The Bilco Company. STK-FLYER-R7
Added Benefits:
• Satises Section 310.4 of UBC and IRC
2009 Building Code for basement egress
• High-density polyethylene molded
construction will never rust, rot,
or discolor
• Maintenance-free
• Standard 5-year warranty
• Optional clear polycarbonate
cover available
1
21”
2
36-3/8”
3
51-3/4”
4
67-1/8”
5
82-1/2”
6
97-7/8”
stakWEL Dome Cover
Limits the accumulation of snow, leaves and debris.
Constructed of polycarbonate, this high impact
cover is UV-resistant and designed for durability
and long-life.