A New Mezzanine….

[GC]

Brilliant! Nothing a quick mock up won't sort. I would start by temporarily mounting two longitudinally, in line/beneath the hangers. You may well find that two across the width of the room will suffice, subject to the furniture layout and what it is @AdamC will be doing in there. 

*2 per section of ceiling.

[AdamC]

Middle section of joists now in…

[louisbosco]

never thought that area could fit a "second storey"

[Giles]

It's the same height as the other 2 units we have.  We have the problem of some cross beams being at chest height, but it's still a lot of storage…

[louisbosco]

I don't know why but from memory I swore the height felt lower than the rest.

can't wait to see the finished project though..

[Giles]

It looks lower than it really is from ground level.  When you get up there, there is a surprising amount of headroom….

[neph93]

@AdamC:

Are these 2x6? If so what is the span of that middle section?

[Giles]

Span 3200mm.  2x5's.  400mm centres.  The T&G chipboard flooring will be screwed into the 2x5's in a sort of Les, "let's see how many boxes of screws we can get through" fashion, which will add a load of rigidity…..

[neph93]

400mm centres… that makes more sense.

[Steffen]

@Giles:

And in the mean-time, I'm praying that I configured them correctly 

You infact did, per our good old german DIN 18065 says that a frequently used Stair should have a Rise between 14-20cm and a going between 23-27cm, which means your in regulation. 18cm/26cm is as stated in the Books rated as "bequem" which means comfortable. Sounds like a nice Stair.

[Giles]

Thank you

[Giles]

And, the stairs arrived….

[Giles]

[Giles]

[Steffen]

Are you happy with how they walk @Giles ?

[Giles]

Oh, yes…..

[ROman]

Stairway to Heaven.

[organisys]

G, may be a good idea to add a smoke alarm under the Mezzanine?

[Giles]

[Giles]

@organisys:

G, may be a good idea to add a smoke alarm under the Mezzanine?

Great advice.  Thank you.