Probably been a bit silly...

[Erichalfbee]

No it doesn't.

Correct. The Paynes nuc is top space.
No need for sagging. Put a proper 4/6 mm polycarbonate crown board on

 

[Teemore]

Correct. The Paynes nuc is top space.
No need for sagging. Put a proper 4/6 mm polycarbonate crown board on

Or break up a spare bottom bar and use the two halves as spacers to stop sagging. I have been doing this to let me use rapid feeders on Paynes poly nucs for several years.

 

[For want of a better word]

Correct. The Paynes nuc is top space.
No need for sagging. Put a proper 4/6 mm polycarbonate crown board on

Problem if thicker than supplied poly/acrylic is used is that the roof does not fit snugly!

With the Paynes type pollynuc a slab of fondant will fit neatly into the side feed chamber.... I use invert to get Autumn stores into overwintered nucs as the bees just take it in and store it.

Yeghes da