Convert grass to gravel/chippings
We have a slightly sloping front garden which we intend laying to gravel/chippings from grass. We have removed the grass and loosened the surface. We intend covering it with strong weed killer and digging it out to a depth of about 2 - 3 inches. We would like to tier it and would welcome advice on how this should be done. Once suitably prepared, we intend covering the surface with weed control fabric and then our choice of gravel/chippings. Is it ok to use the weed control fabric immediately after using the weed killer or should we cover with plastic first temporarily to prevent airborne seeds taking route? Thanks in advance for any responses.