Publisher Blurb: Easy to Build This paper terrain kit is easy to assemble, requiring just 15 cardstock paper sheets to print on (110 lb. or 199gsm recommended), hobby knife, glue, metal ruler and cutting mat. 15mm-30mm Scale These models are designed at the popular 28mm-30mm gaming scale, and can be shrunk down to 15mm, 20mm or 25mm scales by simply adjusting the print size percentage on your printer. Tips and advice for altering the scale are included with this kit. Single Layered PDFs This PDF is ready to print right way. Software Requirements You'll need the free Adobe Acrobat Reader 7.0 or later in order to use these PDF included in this kit. Dimensions Each crate is a 1" x 1" x 1" cube. You will find individual crate models in this kit, but most of what you will find are larger blocks of several crates. You will find blocks in all these sizes: 1 x 1 x 1 2 x 1 x 1 2 x 2 x 1 2 x 2 x 2 3 x 1 x 1 4 x 1 x 1 3 x 2 x 2 3 x 3 x 1 4 x 2 x 2 4 x 4 x 2 3 x 3 x 2