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Stone description: porous
| Wall Number | Country Sort ascending | State | Classification | Source |
|---|---|---|---|---|
| 8LB47 | United States | New Mexico | Sandstone | Valencia Co. |
| 9RA18 | United States | Pennsylvania | Sandstone | Meadville |
| 11LB29 | United States | Missouri | Sandstone | Jones Station Ralls Co. |
| 5LA6 | United States | Ohio | Sandstone | Weller Twp. Richland Co. |
| 6LB9 | United States | Pennsylvania | Sandstone | Baden |
| 7RB36 | United States | Nevada | Sandstone | Carson City |
| 8RB46 | United States | Washington | Sandstone | Tenino |
| S1-1 | United States | Ohio | Sandstone | McDermott |
| 10RA13 | United States | Ohio | Dolomite | White House |
| 12WE | United States | Ohio | Sandstone | McDermott |
| 28EE | United States | Ohio | Sandstone | McDermott |
| 5RB6 | United States | Ohio | Sandstone | Cumberland |
| 7LA28 | United States | Kentucky | Sandstone | Grayson Spgs |
| 8r48 | United States | Ohio | Sandstone | Berea |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 11LB30 | United States | Missouri | Sandstone | Butler |
| 5LA7 | United States | Ohio | Sandstone | Millersburg |
| 6R48 | United States | North Carolina | Sandstone | Raleigh |
| 7RB39 | United States | New Jersey | Sandstone | Avondale |
| 8RQ | United States | Ohio | Sandstone | McDermont |
| S1-2 | United States | Ohio | Sandstone | McDermott |
| 10RA14 | United States | Ohio | Dolomite | Van Wert |
| 13LA12 | United States | Ohio | Dolomite | Freemont |
| 2c | United States | Alabama | Limestone | Rockwood |
| 5RB8 | United States | Ohio | Sandstone | Independence |
| 7LA31 | United States | Colorado | Sandstone | Fort Collins |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 9RA20 | United States | Pennsylvania | Sandstone | Uniontown |
| 11LB31 | United States | Kansas | Sandstone | Pawnee |
| 14La48 | United States | Texas | Limestone | Cedar Park |
| 5La8 | United States | Ohio | Sandstone | Youngstown |
| 6RA11 | United States | Pennsylvania | Sandstone | Layton Station Fayette Co. |
| 7RB42 | United States | Michigan | Sandstone | Marquette |
| 9EE | United States | Ohio | Sandstone | Glenmont |
| S1-35 | United States | Ohio | Sandstone | Glenmont |
| 13RA35 | Spain | Limestone | Murcia, Murcia | |
| 8RB36 | Scotland | Sandstone | Nairn | |
| 8LB36 | Scotland | Sandstone | Thurso | |
| 11LB28 | Scotland | Sandstone | Ballochmyle | |
| 6RB37 | Mexico | Tuff | Oaxaca State | |
| 10LA38 | Mexico | Dacite | Mexico State | |
| 13LB29 | Italy | Limestone | Leghorn |