Hi, Have knocked out old fireplace and now have internal dimensions of 3 foot wide by 2 foot deep with brick exposed. However hole is uneven and needs two inches adding to right hand side. Any suggestions? fireboard+render? 2"block and render? if render... sand cement? (what type of sand?)
Also have atttached mantel to chimney breast 18" above log burner in front of but slightly below a concrete lintel (2" exposed) will it be ok?
ta in advance.