== Additional Notes ==
* A support beam is required on ''every'' wall of a cave tile (both sides) to prevent the tile from collapsing.
* A reinforced wall can be removed by mining it out if it is on deed, but not excavated for materials.
* A reinforced floor can be mined to remove beam reinforcement with 21 [[body strength]]. No shard is produced in this process, and the slope does not change.
* Finished support beams do not fit into a small cart, rowing boat, or small sailboat.