How to Measure up for a new Toilet

This Video gives you an insight of how to measure up when you are planning on buying a new toilet. Orbit Plumbing services Frankston, Mornington Peninsula & the South Eastern Suburbs of Melbourne.
www.orbitplumbing.com.au 0447 007 178

[@DrAlexCullison]

My rough in is 13" What do I get? A 14" ? I know that is an unusual measurement - I checked it twice.. Front bolt to drywall. HELP! Your advice please.