Brick Barbecue

Step 9 Firebrick set

I went to my local building supplier and purchased standerd size firebrick and used those for the floor of the firepit. Then I purchased 1 1/4" thick firebrick for the walls of the firepit. Here's a view showing the opening to the smoker. you can also see that I installed a solid 1/2" rod through the block as well. I then welded a solid steel plate to the rod to act as a damper for the opening to the smoker.
Note: I used 3 lbs of FireClay to an 80 lbs bag of premix mortar to set the firebrick. I dry mixed the fireclay and premixed in a mixing tub and then dumped it all in a clean plastic garbage can that had a good fitting lid.