With the cold weather of winter here in Indiana, I have moved the press work into my old trailer workshop. There I can keep the heat up in the 50 deg range on all but the coldest of days.
My first press makes bricks with the dimensions of L 9" x W 5" x H 2.5" - 4.5". I can alter the height dimension by how much earth mix ( clay, sand, cement, water ) that is poured into the box before compression.
This is my latest and strongest press. It has closely recreated the brick dimension of my first hydraulic press. Dimensions are L 9" x W 3.5" H 3.5"