Staining Pine Floors Grey . [irp] gray stained wood floors flooring. Our house is 100 yrs old, with old pine flooring in our kitchen. Grey Stained Wooden Floors Floor Roma from mromavolley.com These woods are close pored and absorb the stains differently on your commercial and residential hardwood flooring. Keeping old pine flooring look. 2 materials needed to stain hardwood floors grey.