>i used 86m for my shed [walls and roof]that was just enough <
86m? I've worked out that I need 135.2m for my shed including the floor but that includes doubling up the end studs on the walls that overlap as shown here http://www.buildeazy.com/shed_2.html.
The good news is that I can buy 47 x 75 sawn treated for 80p per metre so the price is coming near enough my budget; thanks for the advice.
I did think that 47 x 75 would be a bit light for floor joists but I suppose if I support them in the middle they should be fine.
my floor joists are 2ft apart and suported every 2ft along the length so suported by 6 joists accross at 0 2 4 6 8 and 10ft all 12ft long and suported 7 times so 7 times6 = 42 slabs with brick and felt on top
so floor bearers 30m +85m =115m
the 12ft walls 6 ft heigh times 7 =42ft top and bottom plate 24ft=66ft per side =132ft thats 40m
then 5 "a" frames for the roof @6.7m=33.5
that leaves 12m for the ends keeping in mind the ends arnt realy load bearing on my desighn and you dont need a top plate at one end as it fixes to the "a" frame and the other end is mostly door
oohh and the head clearence is around 6ft5" as the bottom bit of the "A" frame is 6 inches above the wall plate
they double up in loads of places on that plan i havent found that nessesery apart from the inside face edge to make the wall plate at the top 5" wide to give the "A" frame more to sit on
even at the corners its single with both walls screwed to the single peice
dont forget my shed is 50% bigger than that plan and possible a tad more at 10x12 ft internal floor area although the 3" of the wood sit on the floor and buy the time i insulate and affix panels on the inside i will loose around 7"
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