Depending on the color your going with on the exterior, if you keep it red or another darker toned color, I'd go lighter almost honey on the floors; knotty pine? I have always wanted to redo a barn into a modern/rustic home!

Is this West Elm sofa the kind of thing you are looking for? Or even lower to the ground? http://www.westelm.com/products/4227534/?catalogId=52&bnrid=3918508&cm_ven=Google_PLA&cm_cat=furniture&cm_pla=Sofas_+_Sectionals&cm_ite=West_Elm_Baxter_Sectional_Sofa_Cotton-Rayon_Ikat_Print_Feather&adtype=placi_src=17588969&ci_sku=4227534&ci_kw=%7Bkeyword%7D

Hi Luke, thanks for your reply. Yes, there is existing plumbing but we need to create a gradient somehow on the wood floor. Concrete floors can be ground to create the gradient but need to come up with some other solution with the wood.

I was going to say. There's no way that carpet could be in here, especially when animals aren't always the best at making it to the bathroom in time. Great article!