Left-sloping Inverted Stonebrick Wall

Description
Walls are a comfort for the timid, a strength to the strategist and a trap for the unwary. A barrier against the savage world, walls can be built as high as the stability of the foundations will allow. The strength of the materials used in their construction will determine how long they stay up. Just remember to add a door. Built of close fitting bricks of cut Stonebrick, reinforced by wooden slats that have been shaped to fit, this will provide a safe haven from the weather and strong front to any foes who come knocking.

Repair
Repairing  requires up to:
 * 4
 * 2
 * 3