If you have a long narrow room in your house, then you will need some best design long narrow room. Best design long narrow room can make this room look its best. For example, paint the end walls a warm, visually advancing color. Visually advancing colors make a room appear smaller, or in this case, make the farthest apart walls seem closer together, effectively evening up the dimensions of the room. Reds, oranges, and dark blues and greens are all visually advancing colors. Another way to create this effect is to use a wallpaper with a large, bold pattern on the end walls.