facing bricks as a low garden wall

[Post and beam]

We have about 2100 'soft mud' facing bricks left over.  I need to build (have built for me) a low retaining wall about 900mm tall by 7 metres length on each side of our drive. Are these suitable please? 

[Onoff]

Maybe three courses of engineering bricks first, something similar to what you've got. 

 

Then build your wall, including some low drainage tubes but paint the back with lashings of black bitumastic paint. 

 

If they get damp they'll just suck up water from the dirt behind, freeze, be forever spalling / blowing and just disintegrate.