The dimension is 1.8m x 1.8m square, height is 5ft to the top of the sides. I choose this size simply because of cost, i could source feather edge timber to clad it which was 3.6 metres long, so it was simply cut in half. I would like a bigger size to be honest, it is a bit small.
The frame is just softwood, the cladding as mentioned above is feather edge board.
The floor is a concrete base around 3-4 inches thick, but on a layer of hardcore rubble.
The pier is separate and bolted into the concrete.
It was and still is bit of a game changer due to the quickness of setting up and closing down at night. That said the location has got worse over the 12 years, due to tree growth, light pollution and the altitude of the planets in recent years.