Feb 27 lay natural grey slate floor garage feb 2016 packers all laid closeup Lay Natural Grey Slate Floor Garage Feb 2016 Packers Now that the garage has been plastered, Dad and I laid the grey natural slate floor. I am using 60cm x 30cm tiles in a brick bond. We managed to get them laid in a morning and then i cleaned each one with a sponge to remove any adhesive. lay natural grey slate floor garage feb 2016 packers