Hi,
I am replastering a bulkhead, where would be the best place to start from.?
The walls are not an issue as the new kitchen will cover them.
Hello @Markcub
Thanks for sharing the photos, they make the situation much clearer. From what I can see, the bulkhead framing is already in place, with the plasterboard removed from the underside and front face. The top horizontal section with the existing plasterboard and external corner bead appears to be staying, while you'll be replacing the missing sections underneath and on the vertical face.
I recommend starting at the corner where the existing plasterboard is still installed. That outside corner becomes your reference point and helps you keep the new sheets straight and flush with the existing surface. Install the front vertical face first, ensuring it sits perfectly in line with the existing corner. Once that is secured, fit the underside sheets, working back from the completed front edge. This makes it much easier to achieve a crisp, straight corner and avoids having to force the front sheet to match an uneven ceiling panel later.
Looking at your framing, I'd also check that every plasterboard joint has solid timber backing. This will prevent movement and reduce the likelihood of cracks forming once the joints are finished.
After all the sheets are fixed, install a new external paper-faced or metal corner bead over the outside corner, then tape and set the joints. Since you've mentioned the kitchen cabinetry will cover the surrounding walls, you can concentrate on getting the bulkhead itself perfectly straight and smooth, as this will be the most visible part once the kitchen is complete.
For this job, I suggest looking at the Gyprock 10mm Plasterboard matched to the existing thickness, Gyprock Paper Tape, Gyprock Less Mess Multi-Purpose Joint Compound, and a Rondo Paper Faced External Corner Bead (special order) are all suitable products currently available from Bunnings. A quality finishing trowel such as the Kango Plaster Trowel will also help produce a flatter finish with less sanding.
Overall, the framing looks sound for replastering. Starting from the existing outside corner and using it as your reference will give you the best chance of achieving a straight, professional-looking bulkhead that blends seamlessly with the remaining ceiling. Best of luck with the project, it looks well on its way to becoming a fantastic new kitchen.
Here is a handy step-by-step guide: How To Plasterboard A Ceiling
Let me call on @Nailbag for his thoughts and recommendations.
Please remember to wear personal protection such as gloves, goggles and a mask.
If you need further assistance, please let us know.
Eric
Thanks