Sheet metal and wooden poles removed

Here's the final wall.

Now it's time to fill in that big gap in the middle to create a surface to build the oven on.

As you can see we're keeping the concrete moist with wet towels and plastic to allow it to cure completely. The weather here is so hot and windy that without such steps the concrete would dry out too quickly.

Those concrete blocks which have been lying around the garden for a long time and taking up space are the first bit of fill to go in there.