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Stone description: porous
| Wall Number | Country | State | Classification Sort ascending | Source |
|---|---|---|---|---|
| 24EE | United States | Ohio | Sandstone | Glenmont |
| 4R9 | United States | Ohio | Sandstone | Berea |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 5RA12 | United States | Ohio | Sandstone | Euclid |
| 5RB3 | United States | Ohio | Sandstone | Bedford |
| 6LA3 | United States | Pennsylvania | Sandstone | Wampum |
| 6LB39 | United States | Ohio | Sandstone | Youngstown |
| 7EE | United States | Ohio | Sandstone | McDermott |
| 7LB44 | United States | Michigan | Sandstone | Stony Point |
| 7RB28 | United States | California | Sandstone | Sites |
| 8LA36 | United States | Missouri | Sandstone | Clinton |
| 8LB38 | United States | Arizona | Sandstone | Yavapai Co. |
| 8RA40 | United States | New Jersey | Sandstone | Belleville |
| 8RB44 | United States | Michigan | Sandstone | Isle Royale |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 9Lb44 | United States | Wyoming | Sandstone | Laramie |
| 9RA42 | United States | Illinois | Sandstone | Xenia |
| 9RB40 | United States | Indiana | Sandstone | Attica |
| 10Lb46 | United States | Wisconsin | Sandstone | Mauston |
| 10RQ | United States | Connecticut | Sandstone | Fair Haven |
| 11LB28 | Scotland | Sandstone | Ballochmyle | |
| 11RB34 | United States | Oregon | Sandstone | Dallas |
| 25WE | United States | Ohio | Sandstone | Amherst |
| 5LA5 | United States | Ohio | Sandstone | Piketon |
| 5RA13 | United States | Ohio | Sandstone | Marietta |
| 5RB4 | United States | Ohio | Sandstone | Bellaire |
| 6La30 | United States | Kentucky | Sandstone | Livingstone |
| 6LB7 | United States | Pennsylvania | Sandstone | Yardleyville |
| 7LB45 | United States | Michigan | Sandstone | L'Anse |
| 7RB30 | United States | Texas | Sandstone | Milsap |
| 8LA37 | United States | Missouri | Sandstone | Warrensburg |
| 8LB39 | United States | West Virginia | Sandstone | Wheeling |
| 8RB45 | United States | Wisconsin | Sandstone | Packwaukee |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 9RA43 | United States | Idaho | Sandstone | Boise |
| 9WE | United States | Ohio | Sandstone | McDermott |
| 10Lb47 | United States | Wisconsin | Sandstone | Mauston |
| 10WE | United States | Ohio | Sandstone | Amherst |
| 11LB29 | United States | Missouri | Sandstone | Jones Station Ralls Co. |
| 11RB45 | United States | New Mexico | Sandstone | Las Vegas |
| 26WE | United States | Wyoming | Sandstone | Laramie |
| 4RQ | United States | Ohio | Sandstone | Amherst |
| 5LA6 | United States | Ohio | Sandstone | Weller Twp. Richland Co. |
| 5RA15 | United States | Ohio | Sandstone | Cambridge |
| 5RB5 | United States | Ohio | Sandstone | Brownhelm |
| 6La4 | United States | Pennsylvania | Sandstone | Wampum |
| 6LB9 | United States | Pennsylvania | Sandstone | Baden |
| 6RB2 | United States | Pennsylvania | Sandstone | Franklin |
| 7LA19 | United States | Ohio | Sandstone | Akron |
| 7RB36 | United States | Nevada | Sandstone | Carson City |
| 8LA39 | United States | Kansas | Sandstone | Oswego |
| 8LB47 | United States | New Mexico | Sandstone | Valencia Co. |
| 8RA44 | United States | Michigan | Sandstone | L'Anse |
| 8RB46 | United States | Washington | Sandstone | Tenino |
| 9LA42 | United States | Illinois | Sandstone | Chester |
| 9RA18 | United States | Pennsylvania | Sandstone | Meadville |
| 9RA44 | United States | Iowa | Sandstone | Davenport |
| S1-1 | United States | Ohio | Sandstone | McDermott |
| 11LB30 | United States | Missouri | Sandstone | Butler |
| 12WE | United States | Ohio | Sandstone | McDermott |
| 28EE | United States | Ohio | Sandstone | McDermott |
| 5LA7 | United States | Ohio | Sandstone | Millersburg |
| 5RA16 | United States | Ohio | Sandstone | Leesville |
| 5RB6 | United States | Ohio | Sandstone | Cumberland |
| 6LA42 | United States | New Jersey | Sandstone | Stockton |
| 6R48 | United States | North Carolina | Sandstone | Raleigh |
| 6RB20 | United States | Ohio | Sandstone | Amherst |
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 7RA19 | United States | Ohio | Sandstone | Carrollton |
| 7RB39 | United States | New Jersey | Sandstone | Avondale |
| 8LA42 | United States | New Jersey | Sandstone | Newark |
| 8r48 | United States | Ohio | Sandstone | Berea |
| 8RA46 | United States | Washington | Sandstone | Bellingham |
| 8RQ | United States | Ohio | Sandstone | McDermont |
| 9LA44 | United States | Florida | Sandstone | Suwannee River |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 9RA45 | Canada | Sandstone | Dorchester, New Brunswick | |
| S1-2 | United States | Ohio | Sandstone | McDermott |
| 13RA35 | Spain | Limestone | Murcia, Murcia | |
| 14La48 | United States | Texas | Limestone | Cedar Park |
| 2c | United States | Alabama | Limestone | Rockwood |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 9LA5 | United States | Missouri | Limestone | Barrett's Station |
| 10C | United States | Indiana | Limestone | Bloomington |
| 13RA36 | Hungary | Limestone | Breitenbrunn | |
| 8RB16 | United States | Wisconsin | Limestone | Madison |
| 9RA9 | United States | Iowa | Limestone | Tracey Station, Marion Co. |
| 10RA22 | United States | Kansas | Limestone | Smoky Hill Reservation |
| 13LA36 | Hungary | Limestone | Margarethen Leitha Mts. | |
| 13RA43 | United States | Kentucky | Limestone | Hopkinsville |
| 6C | United States | Indiana | Limestone | ? |
| 10RA24 | United States | Kansas | Limestone | Armstrong |
| 13La45 | United States | Kentucky | Limestone | Frankfort |
| 13RA47 | United States | Alabama | Limestone | Rockwood |
| 2WE | United States | Texas | Limestone | Cedar Park |
| 8C | United States | Indiana | Limestone | Bloomington |
| 10LA18 | United States | Iowa | Limestone | Marshalltown |
| 11LA33 | United States | Ohio | Limestone | Lumberton |
| 12LA35 | United States | Indiana | Limestone | Spencer |