loft ladder study

https://gyazo.com/fd032e5fb344900c223e72bd3521fcdc

https://gyazo.com/f7d08e2122a5f866421b0a6b5e8916c3

https://gyazo.com/38bdf4ea35f6c2d6f037c0806504e6eb

step : 1" x 2" rec tube is better than 1" diameter tube