The best replacement for ledge is shelf.

The best alternatives to ledge are rated as following:
★★★★★  shelf
★★★★  plate shelf
★★★  holland west ottawa
★★  crown molding ledge
★★  east kentwood
★★  chocorua
★★  sill
★  east lansing
★  ledge

Your alternative for ledge is not listed? Suggest!
Speaking about ledge, one probably shouldn't forget about mirror.

Other search terms related to ledge and their ratings are:
★★★★★ mirror
You have in mind a companion for ledge and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ledge in all years. Click on graph for more.
ledge
shelf
plate shelf