Fire place construction

[ukcat]

I'm just about to start bricking up to create new enclosure for inset stove pic shows roughly where bricks will be and trowel is were stove will eventually be positioned. The base is concrete but needs raising up by about 30mm which I planned to screed with grit sand and cement. Question is should I brick up and then apply the screed or screed the whole area and build onto the screed. Thanks in advance 

[Russell griffiths]

That looks like a small space, have you read the clearance regs for the stove your buying.  
brickwork first 

screed second. 
imho. 

[ukcat]

27 minutes ago, Russell griffiths said:

That looks like a small space, have you read the clearance regs for the stove your buying.  
brickwork first 

screed second. 
imho. 

Hi thanks for the reply. Bricks are just dropped in to give the general idea. Yes current opening is 850mm but this will reduce down to 470mm which will give 10mm clearance around the stove (it's an inset type)