This is a step by step lesson I created for my own use to give dimension to common building shapes. Using these concepts one can generate the components needed to relief carve houses, barns, or other buildings. Attached is a PDF of the steps used. There is an Aspire 8.5 file in my Dropbox if you care to download that. The folder name is Creating A Simple Barn and is located at https://www.dropbox.com/l/scl/tDbb2aH1NbxbGjw6kGb9Qo
(I am new at this Dropbox thing so I hope this link works

Will try to answer any questions.