Spiders often get a bad rap, and some people are afraid of them. But only a few species are dangerous to humans, and even they wonât bite unless they feel threatened. Like so many animals, spiders are affected by habitat loss and by nonnative species introduced by humans that can often take over spider habitat.
A: For a double-rod closet, the standard height of the top rod is 81.75 inches from the floor, and the standard height of the bottom rod is 40.5 inches. For a single-rod closet, the standard rod height is 66.5 inches.
  For rods hanging at 63 (height for dresses), place shelf 70 above the floor. For double hanging space, shelves can be placed at 42 and 84 above the floor.here is no standard height of a curtain rod. The height will  depend on the room they are used in. The rod should be placed four  inches above the window frame.