diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.Async.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.Async.cs
index 1f44fa2e5..ce00f20d6 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.Async.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.Async.cs
@@ -68,4 +68,13 @@ IAsyncEnumerable<SevenZipVolume> volumes
 
     protected override ValueTask<IAsyncReader> CreateReaderForSolidExtractionAsync() =>
         new(new SevenZipReader(ReaderOptions, this));
+
+    public override async ValueTask<bool> IsSolidAsync()
+    {
+        var entries = await EntriesAsync
+            .Where(x => !x.IsDirectory)
+            .ToListAsync()
+            .ConfigureAwait(false);
+        return entries.GroupBy(x => x.FilePart.Folder).Any(folder => folder.Skip(1).Any());
+    }
 }
diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
index 943547df3..278223136 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
@@ -96,7 +96,7 @@ protected override IReader CreateReaderForSolidExtraction() =>
         Entries
             .Where(x => !x.IsDirectory)
             .GroupBy(x => x.FilePart.Folder)
-            .Any(folder => folder.Count() > 1);
+            .Any(folder => folder.Skip(1).Any());
 
     public override bool IsEncrypted => Entries.First(x => !x.IsDirectory).IsEncrypted;
 
diff --git a/tests/SharpCompress.Test/SevenZip/SevenZipArchiveAsyncTests.cs b/tests/SharpCompress.Test/SevenZip/SevenZipArchiveAsyncTests.cs
index 228b0111d..b4f3c8551 100644
--- a/tests/SharpCompress.Test/SevenZip/SevenZipArchiveAsyncTests.cs
+++ b/tests/SharpCompress.Test/SevenZip/SevenZipArchiveAsyncTests.cs
@@ -227,6 +227,25 @@ public async Task SevenZipArchive_PPMd_AsyncStreamExtraction()
         VerifyFiles();
     }
 
+    [Fact]
+    public async Task SevenZipArchive_TestSolidDetectionAsync()
+    {
+        await using var oneBlockSolidArchive = await SevenZipArchive.OpenAsyncArchive(
+            Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.1block.7z")
+        );
+        Assert.True(await oneBlockSolidArchive.IsSolidAsync());
+
+        await using var solidArchive = await SevenZipArchive.OpenAsyncArchive(
+            Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z")
+        );
+        Assert.True(await solidArchive.IsSolidAsync());
+
+        await using var nonSolidArchive = await SevenZipArchive.OpenAsyncArchive(
+            Path.Combine(TEST_ARCHIVES_PATH, "7Zip.nonsolid.7z")
+        );
+        Assert.False(await nonSolidArchive.IsSolidAsync());
+    }
+
     [Fact]
     public async Task SevenZipArchive_Solid_ExtractAllEntries_Contiguous_Async()
     {
@@ -234,7 +253,7 @@ public async Task SevenZipArchive_Solid_ExtractAllEntries_Contiguous_Async()
         // rather than recreating the decompression stream for each entry
         var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z");
         await using var archive = await SevenZipArchive.OpenAsyncArchive(testArchive);
-        Assert.True(((SevenZipArchive)archive).IsSolid);
+        Assert.True(await archive.IsSolidAsync());
 
         await using var reader = await archive.ExtractAllEntriesAsync();
         while (await reader.MoveToNextEntryAsync())
@@ -255,7 +274,7 @@ public async Task SevenZipArchive_Solid_VerifyStreamReuse()
         // and not recreated for each entry in solid archives
         var testArchive = Path.Combine(TEST_ARCHIVES_PATH, "7Zip.solid.7z");
         await using var archive = await SevenZipArchive.OpenAsyncArchive(testArchive);
-        Assert.True(((SevenZipArchive)archive).IsSolid);
+        Assert.True(await archive.IsSolidAsync());
 
         await using var reader = await archive.ExtractAllEntriesAsync();