Frantz Round Barn

{{Use mdy dates|date=January 2025}}

{{Infobox NRHP

| name = Frantz Round Barn

| nrhp_type =

| image = Frantz Round Barn.jpg

| caption =

| location = Off U.S. Route 30

| nearest_city = Grand Junction, Iowa

| coordinates = {{coord|42|2|19|N|94|12|4|W|display=inline,title}}

| locmapin = Iowa#USA

| area = less than one acre

| built = 1911

| builder = Beecher Lamb

| architect =

| architecture =

| added = June 30, 1986

| mpsub = {{NRHP url|id=64000152|title=Iowa Round Barns: The Sixty Year Experiment TR}}

| refnum = 86001432{{NRISref|2008a}}

}}

The Frantz Round Barn is a historic building that was located near Grand Junction in rural Greene County, Iowa, United States. It was built by Beecher Lamb in 1911. The true round barn measured {{convert|55|ft|m}} in diameter.{{cite web|url=http://www.dalejtravis.com/rblist/rbia.htm|title=Iowa Round Barn List|publisher=Round Barns & Covered Bridges|accessdate=2011-01-13|author=Dale Travis}} The barn was constructed in concrete block from Mid-Iowa Concrete of Grand Junction. It featured a {{convert|56|ft|m|adj=on}} tall central silo that was {{convert|16|ft|m|adj=on}} in diameter.{{cite web|url={{NRHP url|id=86001432}}|title=Franz Round Barn|publisher=National Park Service|accessdate=2017-11-13|author=}} with {{NRHP url|id=86001432|photos=y|title=photo}} The interior had a circular around the central silo on the first floor. The second floor had stalls for 12-14 horses, a circular, haymow, and granary. The barn was listed on the National Register of Historic Places since 1986. It has subsequently been torn down.