Blocking in a doorway

Am about to fill in an internal downstairs doorway ay home using blocks, and am looking at the various different types.

Am I OK to use one skin of those very lightweight (cheap, convenient!) aerated blocks for this or do I need to use heavier stuff? The door lintel will remain in place so they won't be load-bearing, and there's no sound insulation issues that I'm concerned about.

The existing wall is old brickwork, and I was planning on wet plastering one side of the old doorway, flush with and to match the rest of the wall and minimise risk of cracks; and dryline the other side, which will actually form an alcove (due to the depth of the old wall) into which I will be fitting shelving at some point.

Have I got this about right?

Thanks

Reply to
Lobster
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In article , Lobster writes

Nothing wrong that I can see but why not keep it simple and dry line completely? Put in some decent woodwork to support the shelves.

Reply to
fred

I wouldn't bank on the plaster around the door being level as it would have been plastered by eye originally then made up with architrave etc. Trying to finish a job like this to a decent uniform level can be a complete pain in my experience but you might get lucky!

Don't forget to tie your blocks into the existing wall.

Reply to
GMM

Lightweight blocks will be fine - but key it in to the existing doorway!

Reply to
Tim Watts

You would be best to hack the plaster back from the doorway about 100 or

150mm back from the door frame position on the "flush" side. Helps to hide the joint. You need to put some "scrim" over the joint when replastering, this will stop a crack forming in the plaster. Give the old brickwork a wetting down before you plaster to minimise shrinking and maximise adhesion.

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Reply to
harryagain

On 03 May 2014, GMM grunted:

Thanks for all the replies

As it happens, won't be a problem since this particular doorway was installed not that long ago, certainly after the wall was originally plastered.

Anyway, work has just come to a grinding halt since I've just been out shopping and *all* the local B&Qs and Wickes are out of stock of blocks - is there a national shortage or something?!! Will have to try the builder's merchants but obviously am screwed for the bank holiday weekend : (

Reply to
Lobster

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