The Stepfield terrain is as shown:
The stepfield consists of three different heights of blocks.
- 8x 0 (Zero) height blocks
- 16x 50mm height blocks
- 8x 100mm height blocks
The 0 height blocks are simply a sheet of OSB, nominally 15mm thick, 150 x 150 mm (6 x 6 in) in size.
The 50 mm height blocks consist of the following:
- 1x 15 x 150 x 150 mm (6 x 6 in) OSB sheet
- 4x 15 x (150 mm (6 in) – 1 thickness of OSB) x 50 mm (2 in) OSB sheets
The 100 mm height blocks consist of the following:
- 1x 15 x 150 x 150 mm (6 x 6 in) OSB sheet
- 4x 15 x (150 mm (6 in) – 1 thickness of OSB) x 100 mm (4 in) OSB sheets
The blocks should be nailed or stapled together, and optionally glued for durability. Screws should be used carefully to avoid splitting the OSB.