double Porte cochere dimension help

6 days ago

Hi all
Need help
We want to do double Porte cochere because we have the lot width to do so
This will lead to a triple garage in backyard

The depth is 20 ft - that’s easy
Right now the width is 20 ft but that includes
columns. I have attached a single Porte cochere that is 13x20 for reference.

I would like to park two cars and be able to at least open car doors enough to get out reasonably.

Doing the math it seems
3 ft from house then 6.5 width car then 3 ft gap then 6.5 ft car so that’s 19 ft . The passenger door of outer car opens to the lot line so is not issue.

The column supporting roof seem to be 1.5 ft
So I guess 22 ft width is safer than 20 ft?

Please advise.

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