Can a 2.5 metre to ceiling by 2 metre wide internal partition be built with 440 x 210 x 50mm 3.6N block? and How? It will be supported either side onto existing wall and above and below.

How does one lay a partition wall like this? What kind of cement mix, support ect should I use.

This block is a product (not sure if I can mention the name so I won't) - so I assume it must be possible to lay - though through my inexperience it seems difficult to envisage that it will have any strength. Wall strength expectations for a partition would be I suppose, hang a picture, clock, person lean against it ect.

Any advise would be welcome other than just 'it would be better to use 100mm'.


  • What bond are you considering? Flemish?
    – Solar Mike
    Feb 19 at 10:31
  • @Solar Mike yes Flemish single brick
    – onepound
    Feb 19 at 10:37
  • 1
    Mentioning the product name is fine if asking a question about a specific product. Feel free to edit that in. my experience of masonry units of this shape is that they are intended for uses where there is other support, not as freestanding single-brick-thick construction. But perhaps there's a way I don't know of?
    – Ecnerwal
    Feb 19 at 13:34
  • @Ecnerwal I've added some spec. - product is Thermolite
    – onepound
    Feb 19 at 14:26
  • lets-do-diy.com/Projects-and-advice/Brickwork-and-masonry/… this is the sort of thing I'm aiming for but at 50mm thickness.
    – onepound
    Feb 19 at 14:32


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