Technical drawings? God no haha.
If you nip over to our site and look at some of our biggest decks, well the drawing that got us job is just a quick 2 minute birds eye view sketch accompanied with a few crude 3d bits ie to show the front cloaking and hand rails. I describe the deck in detail from the picture as I can see them finished even before we start building. (Probably a bit OCD but I can see the actual deck as soon as the customer has described it :-/ )