If the floor in your room has become dirty and it is difficult to wash it, you need to use grinding or cycling. So that the procedure is not too expensive equipment can be rented. This work is closely related to dust and noise, so you need to take care of protecting your respiratory and hearing organs. Before starting work, you need to inspect the boards for the presence of pests. If you find insects, process, half a mixture against them. If in some places the boards rotate them should be processed accordingly. If there are cracks between the boards on the large site, then it will be easier to lay them more tightly. Close the last gap with a new board. If only small cracks are located over the entire surface of the floor, they can be covered with papier-mash, which is made of paper and Clayster. Do not forget to add dye to papier-mash so that the color with the floor is the same. Before covering the cracks, first remove all the dirt from them. You can close some of the cracks using wooden racks. First, the rail needs to be cut precisely in the shape of a gap, then a little PVA glue is applied to the gap and a rack is clogged with a hammer. The protruding part is either removed with a shirt, or, if it is small, grinded using a grinder.