I wanted to give a smile and thumbs up for your response. We all do “wing it” and nothing wrong with that- the good and season builder’s tend to have that natural feel for that type of thing because of experience and doing things for a long time. Everyone has a different approach and aesthetics which is a given. I was able to learn a skill that saved me from a lot of “wing it” and save me from having to fix whatever mishap I overlooked and not planned for. That is drawing it up.
I am not saying this is the only way- it is not. My father-in-law who built shelter’s for the Army in Vietnam and a retired PD as well as contractor would also “wing it”, but he had a sketch and he had a parts list (material list). Sometimes when I worked with him, he would sketch it on site and just do it right there- sometimes there are no sketches. Mind you I am in the design and contractor trade- I followed his lead and learned a lot from him where these type of experience can’t be taught in school, but only in the field. I learned how to over build, never say that “nothing is impossible” and if you present a problem or a problem waiting to happen, you should also be ready and have a solution(s) in place. I took that “mantra” with me whenever I dealt with contractor’s and sub-contractor’s on site and it has never failed me.
So Dave, is the foot print going to be smaller like 36” x 72” and 36” at finished floor? The four legs with that span- will you have stretchers either in “H” configuration or “X” configuration? Will you have supplementary legs in the middle of the midpoint or have a 5th wheel (post) in the center?
I hope you are building this not because there are standards present as far as dimensions- like the height. I feel that is the one that is overlooked and people that are tall in stature or short in stature do not take that into consideration. I will use an example. I had to design a kitchen for a client who was a culinary chef. I asked a lot of hard questions. She was 5’-2” and the standard 36” height counter top would have not been ergonomically fit for her height. I made the counter heights 32” a.f.f. to fit her needs than the standard 36”. This followed suit in the lavatory heights in the bathroom (30” a.f.f. instead of 34” aff). It lowered the heights of the wall cabinets and we furred out the back walls so the wall cabinet was more reachable and accessible for her. I learned all of this as we had 2 Architecture professor who taught in the College I was in and wrote a book about ergonomics in interior spaces. I have used it in the field and it has helped me greatly without having to have the guess work.
Arn