#### RichardG

##### Established Member

Joist Span = 3300mm

Joist Spacing = 380mm (uneven, some are less)

Joist width = 35mm

Joist height = 132mm

Looking at the joist span tables then

38 x 147 @ 400 = 3000 span

38 x 122 @ 400 = 2500 span

So our floor is less than 0.25 kN m2 (unless victorian timber is significantly stronger)

The en-suite has

Toilet 40kg, Shower tray 21kg, Cubicle 40kg

So 100kg, this load is over 3 joists (800) and 2000 length

What I'm not sure about is converting the static load per m2 into kg. I see that 1 kNm2 = 100kg.

So the floor area over the 3 joists is 3.3m x 0.8m = 2.64m2

so assuming my floor is up to 0.25kN/m2 we could have a static load of 66kg which we are already exceeding!! So an additional wardrobe is out of the question.

Is this all sane and correct?