Room in shed corner with mini mezanine, framing timber size?
Just after a bit of advice on what size framing timber i should use to build a 2500w x4250l x 2200h room in the corner of the shed, essentially its a room for the wife's horse gear, going to line it with plaster board and maybe use some leftover floating floor that i have from another job for the floor, shelves for the gear etc etc, etc and i figured i might as well make use of the space above to store things, so i'll be using some 16mm MDF most likely or a few sheets of yellow tongue up there.
i expect i'll have to use some type of engineered timber for the 2500 span before i sheet the top of the roof? any tips on that as well while im here.
the other question i had, i've started sticking up insulation on the internal walls of the shed in preperation to line all of the walls, and have been using contact adhesive in spray cans with good results, bit of a zig and a zag on the wall, bit on the pre-cut insulation and throw it up 5 mins later, got a few sections of wall done 4 months or so ago and they havent fallen off, but i might need to win the lottery to do the whole shed this way (17000x7500x3000) i did experiment with using contact adhesive out of a spray gun with the biggest nozzle i had but it just clogged the gun, and or just spattered about, can you thin it with anything? or can you buy spray able adhesive easilly?