We welcome Mr Tony McCormack to LINE for one day only, talking about all things paving related. Tony is the person behind the website pavingexpert.com. This site grew from a single page, established back in 1997, that attempted to explain the correct construction of a block paved patio for a friend who was having trouble with their contractor. Since then it has been through at least 4 major revisions and now totals over 400 pages information covering all the major paving types used in Britain and Ireland, and receives over 125,000 unique visitors each month during the season.