Plasterboard walls or ceiling first?

[nuzuki]

I've partitioned a room in my workshop and want to plasterboard it. Do I do the ceiling first or the walls? Or does it not matter?

I built a summerhouse a couple of years back and plasterboarded the inside of that. From memory I did the ceiling first then walls as it seemed the filler was easier to apply to the gaps this way round plus I didnt need to do the sanding upsidown. But I guess if the buildings square then it shouldnt matter... but then again whos building is perfectly square.

Thanks for your help

 

[John D v2.0]

Traditionally ceilings, but I'm not sure why. Might help airtightness stopping draughts behind the wall boards too.

 

[^woody^]

Traditionally ceilings, but I'm not sure why. Might help airtightness stopping draughts behind the wall boards too.

Having the ceiling boards overlap the wall board edge reduces the potential for cracking as the ceiling or floor structure can flex.