How to replace masonite walls with plasterboard?

[lhsmith089]

We have a 1960's weatherboard house and we are getting new windows installed. The old timber windows have deteriorated and started to rot out and because of this we have a bit of water damage on the internal cladding which needs to be replaced. Our whole house is lined in masonite sheeting and was wondering if you are able to rip out the old masonite on just the walls with the windows and replace it with plasterboard without having to resheet the whole room?    

[MitchellMc]

Hi @lhsmith089,

It’s definitely possible to replace just the water-damaged masonite sections of your wall with plasterboard without needing to re-sheet the entire room. However, there are a few considerations to keep in mind when mixing these materials. 

One potential issue is the difference in thickness between plasterboard and masonite. Plasterboard is typically thicker (around 10-13mm) compared to masonite (usually 4-6mm), which could cause a slight misalignment or step in the wall surface where the two materials meet. While this isn’t a major issue, it’s something to be aware of when installing the plasterboard.

Another thing to consider is the transition between the plasterboard and masonite, particularly at the corners where they meet. Plasterboard is usually finished with tape and joint compound, while masonite doesn’t require this. To overcome this transition, you could install a quad moulding to cover the corner.

Remember that older houses can contain asbestos, so before you begin removing wall sheeting, it's a good idea to ensure there is no asbestos in the area. If there is, it's best to contact a professional to assist.

Please let me know if you have any questions.

Mitchell