I'm getting ready to submit a variance request to my township. The twp says I have a good case (location issue). I'm struggling with this as I don't want to screw up the request, as it will be a costly mistake.
Here is what I know:
• 20x32 is the target size
• concrete floor, radiant heat
• Southeast Michigan, 42" frost line for foundations
• Gambrel roof, with loft storage area
• Insulated
• 10-12" concrete perimeter wall
Now, I do not need to provide detailed plans to get the variance request reviewed, but I have drawn up elevations to show height, overall size. I'm struggling because I'm not yet set on construction method:
1) Metal - no
2) Pole barn - would want to pour concrete pillars and not bury treated posts
3) Post+Beam timber frame
4) Stick built
If I go with #2 or #3, I will likely insulate from the outside. I don't have the budget for IPS panels, but may be able to do expanding foam insulation or foam panels. The foam panel method is sometimes referred to as Wrap and Strap. This would add 12" to the outside of the structure (so a 21'x33').
I want to submit my variance request this week. Should I request a larger structure that I will actually build (21x33), just in case I end up going with #2/#3? Or will they only be concerned with the inside dimensions?
Thanks!