stitch

Hi, Trying to determine whether I should use 6mm or 8mm bars to create a lintel repair above a patio door. I had thought 8mm, but since read that thicker isn't always better for crack stitching because of flexibility. The house I bought 4 years ago has two cracks at the back, one stepped crack...

I was thinking of just digging out and repointing that top cracked mortar course, in 1m stitch lengths so that it's supported throughout the repair. It's about 4m long. I could put in a few vertical helibars along this upper vertical crack to restrain any future movement, what do you think? Or...