my intended growroom.

very good fella but yours will be a bit neater yeah good luck with it mucka

Make sure you can reach the back mate!!

Nice plans

thats the only thing i'm worried about as this will be in my bedroom cupbard that is 2 mtr in length & 1 mtr in width.
the nft system is about 1 & a half meters in length so once they go i wont be able to reach the back of them by the carbon filter.
my only access will be to the left by a standard size door.

You really need to get at them for a SCROG mate, what height is your cupboard? Coz your space is big enough that oyu may not need a scrog,.

And just one randum point I'd put your intake below the level of the scrog on the bottom ideally on the opposite side from your outtake will give you better airflow me thinks.

the height is normal room height about 7/8 foot high.
i was thinking of doing a scrog to maximise my 600 watt hps,the actual growing area will be 59 inc in length 39 inc width & 39 inc in height although i'll be able to adjust the height depending on how much they will stretch.
i think i should be ok once i have the plants to a certain hight & put on scrog net & spread them out give then a another week or so in veg then make sure the canopy is all even then switch to 12/12.
i can still gain access to the main part of the nft system & do reservior changes & keep an eye on temps,ph & ec.
i've never had any problems growing with this nft so dont expect any on this intended grow but i do know what u mean if any thing does go wrong at the back its gonna be a bit tricky to get to them to sort out.