MPK Rooflight Replacement

[stephena]

Time to make some repairs to our beloved Sterling Europa 500 (2005 model) the roof vent in the Bathroom has been cracked since we bought her and I finally decided to replace.

Trouble is my measurements don't seem to match the ones i can find online. I measure edge to edge at 420mm x 420mm and inside (i.e. the gap) at 380mm.

Trouble is it doesnt tell you which measurement they refer to...
http://www.leisureshopdirect.com/caravan/home/product_20397/mpk_rooflight_400mm_x_400mm_-_opaque.aspx

Any ideas?

Edit- Could someone move to Technical for me, sorry!

 

[Damian]

MPK do 3 sizes of rooflight, 280mm x 280mm, 400mm x 400mm and 320mm x 360mm.
The measurement is the hole the light sits in, and it should be very easy to see the difference and the one you want.

If the rooflight is square, as I think it is , then it can only be the small one or the larger 400x400.
Measure the width of the current fitted opening, if it is bigger than 280mm then you want the 400mm x 400mm item

 

[stephena]

Thanks Damian,

So i reckon that's just shy of 380mm and its definitely square so I need the 400x400?

 

[Damian]

Yep, you need the 400 x 400mm

 

[MichaelE]

Hi would personally fit a mini heki, lets more light in and you can open fully