A female monarch lays its eggs (1) on a sprouted milkweed plant. The eggs hatch in four to five days producing tiny yellow, black and white banded larvae (caterpillars). These caterpillars (2) will feed solely on milkweed and eat enormous quantities because they are growing fast.
Roll-up door spring repair or replacement is usually around $200 - $250 for a 2 car door. If the brackets need to be disassembled to remove the springs due to the shaft not sliding sideways enough it will cost you an additional $50 - $100.
Door replacement costs vary, but are usually more than a simple repair. If the door itself is just damaged, but the door frame is still in good shape, then the replacement costs will be lower. In this case, the door slab would just be replaced by a new one. In other cases, the door framing, which includes the door jambs and threshold, needs to be redone. And one step further, if the wall studs have begun to bow and settle out of square, it becomes harder to simply replace the door, and the door replacement costs increase.