CornerStone Custom Builders, Inc Share: Builder and Contractor ServicesHome Improvement Services CornerStone Custom Builders, Inc Visit Website 5811 Hwy K Rhinelander, WI 54501 (715) 362-7888 (715) 362-7887 (fax) cornerstonecustombuilders.com About Map About When you think about building, think CornerStone. A home is much more than a place to eat, sleep, & store your belongings. Owning a home represents the American Dream! Let us help with your plans. What's Nearby? Distance: 5 10 15 20 25 50 mi.