bradstone carpet stones 120x40 20 b q how to lay carpet stone paving rustic stones cobble mat straight l 1200mm w 400mm departments diy at b q bradstone charcoal carpet stone 0 5m² departments diy at b q rustic stones cobble mat full circle in square l 1200mm w 600mm departments diy at b q bradstone carpet paving russet red new stoneflair by bradstone carpet stones charcoal cobble straight 1200 x 400 30 per pack dark grey layered slate garden stepping stones b q stunning dobbies garden centre autumn green natural sandstone paving circle squaring off corner l 2720 w b q carpet stones garden stepping stones b q 2018 cuprinol garden shades stoneflair by bradstone carpet stones rustic red cobble straight 1200 x 400 30 per pack carpet stones and setts