Use screeding lats to get to the completed degree in which the blocks are going to be laid. To have for your top line, place a string line throughout – but leave it 3-5mm proud since the block are going to be compacted down. - Rated People will ship you https://bookmark-share.com/story18430088/the-smart-trick-of-block-paving-lytham-st-annes-that-nobody-is-discussing