We Americans generally don't seem to care for communal tables when it comes to restaurants from my experience. A bar/beer hall/brewery taproom on the other hand is a different beast. From the sounds of things your customers will be coming to your establishment to drink your beer and have a good time, while along the way having a bite if hunger strikes. I've seen places work this angle and do well with it so long as they are not positioning themselves as a restaurant and they usually benefit from a solid number of options for dining around them as it brings traffic to their brewery and gives them good pre/post dining business.
Franklin's Restaurant,Brewery & General Store