If you�ve been following along on my small bathroom makeover, you know that i decided to plank the walls with tongue and groove wood slats that i found at home depot.. Farmhouse bathroom wood plank walls & ceiling. tips, tricks, and a supplies list to install wood plank walls the easy way! the first project we worked on in the master bathroom remodel was planking the walls. because the bathroom is near the living room and kitchen, i wanted to have a cohesive look.. I am just redoing my bathroom downstairs. i inherited the plank board walls.(along with the popcorn ceilings). as i have been watching your post�looking at your laundry room. i decided to remove the popcorn(big mess) and paint the plank boards..