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| A Flat Cellar Door is
used on an existing foundation that is already on an angle. (Typically the existing sloped walls are masonary) |
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Do You Need Your New
| Inside Width of Foundation | Outside Width of Foundation | ||
| A1 | A2 | B1 | B2 |
|
A1, A2 are
important to allow the proper hinge clearance between the foundation
walls. |
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| Length of Foundation | Height of Doorway |
| C1 | D |
| C1 is important to ensure the door is the proper length. (Note: measure on top of the slope not along the ground) | D is important to ensure the lintel is bent to the proper angle. |
