This is the block for Nirmala who is the Bee for this month. She wanted solid colours. It was a very simple block to make, but since there were almost no instructions for dimensions, I had to work that out myself....so although initially frustrated, I took it as another learning experience!!The HST squares have to be 4", The 2 side panels 8'X4', the boat and the water 4x12 1/2". A 4 " square cut into a triangle to create the sides of the boat.