Rear veiw of the vertical sheets.
The vertical sheets are cut wider than required,
fix all the vertical sheets first.
Screw the sheets to the ceiling plate at 300mm centers.
Chaulk a line on the back of the sheet. From the wall plate
on one side to the other.
This will give you a very level bulkhead.

Screw a plate to the vertical sheet, BEFORE CUTTING THE SHEET.
Extend the plate to connect to the wall plate (or timber in this case).
Run your blade under the plate to cut the sheet to the right height.
Provided the bulkhead does not exceed 600mm in width,
you will only need trimmers about every 1800mm
to straighten the center of long runs.
Use ceiling board if the width exceeds 450mm
We fix the corners in place, then run a line end to end.
The trimmers are fixed to the wall first then to the bulkhead.

After fixing the bottom sheet, use a small off cut of
external to mark the top and bottom.
See our tips on installing external angles for a detailed explanation.
Flick a chaulk line from end to end. Marking the edge of the external.

With the chaulk line,
getting joins to line up perfectly straight is a breeze.
Internal angles line up perfectly and the external is dead straight
giving you a fantastic finish.

If your bulkhead exceeds 600mm in width up to 1200mm furring channel trimmers can be placed at 600mm centers (if using ceiling board) or 450 centers, (if using standard plasterboard). No additional support is required.

For spans exceeding 1200mm a top cross rail is required to support the furring channel.

This is by far the quickest and best method of building bulkheads.

Fully framing a bulkhead in timber is both time consuming and expensive. It is very difficult to get a fully framed bulkhead perfectly straight.