Well all of this was very time consuming, and not massively satisfying, but I'm pleased to have got it over and done with!

So it began with adding the final layer of brickwork around the top of the Coal Hole. Not too difficult, I just used the same technique as before allowing the ends to hang over so I could trim them down when the glue had set.

I trimmed the top pieces to size and then started on the final layer around the bottom of the Coal Hole. This was much more fiddly as I needed to build out a section around each of the abutments. Abutments, or Columns, Im not sure...

I then did the same as before and trimmed the end pieces that I had left overhanging to length, leaving sharp corners.

I then turned my attention to the beams that are going to support the tank above the Coal Hole. I ordered these from Sylmasta as they come in 1m lengths which means less waste. They came within two days which was very pleasing. Quite expensive postage though, especially as there is only one postage option.

I made some pad stones with 10thou plasticard and attached these to the walls at the correct heights to give the beams that little edge to sit on to make their placement easier. I used two sizes, 5mm high for the longer beams and 4mm high for the cross members which are set into the larger beams.

I assembled these all loose, just slotting them together, checked all was straight and true, then glued everything at once.

However, I did not glue the beams to the walls at this stage, as making them removable will make the painting and detailing of the interior much much easier!