So what if it is a guesstimate, given that the guesstimate is predicated on plenty of research. Share that reasearch so shops can make real estimate types or distribute sheets or software. I found software that does this pretty matter. I feel the key issue to keep in mind listed http://wide-format-printing-glas38818.blogthisbiz.com/451920/denver-wide-format-printing-blog-for-dummies