double Porte cochere dimension help

11 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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