diff --git a/src/main/java/com/ldtteam/structurize/util/BlockUtils.java b/src/main/java/com/ldtteam/structurize/util/BlockUtils.java
index 86f6d165e..7ad870721 100644
--- a/src/main/java/com/ldtteam/structurize/util/BlockUtils.java
+++ b/src/main/java/com/ldtteam/structurize/util/BlockUtils.java
@@ -105,7 +105,7 @@ public static void checkOrInit()
             ForgeRegistries.BLOCKS.getValues()
                 .stream()
                 .filter(BlockUtils::canBlockSurviveWithoutSupport)
-                .filter(block -> !block.defaultBlockState().isAir() && !(block instanceof LiquidBlock) && !block.builtInRegistryHolder().is(ModTags.WEAK_SOLID_BLOCKS))
+                .filter(block -> !block.defaultBlockState().canBeReplaced() && block.hasCollision && !block.defaultBlockState().isAir() && !(block instanceof LiquidBlock) && !block.builtInRegistryHolder().is(ModTags.WEAK_SOLID_BLOCKS))
                 .forEach(trueSolidBlocks::add);
         }
     }
@@ -836,6 +836,11 @@ public static boolean isWeakSolidBlock(final BlockState blockState)
             return leaves.isRandomlyTicking(blockState);
         }
 
+        if (blockState.canBeReplaced() || !blockState.getBlock().hasCollision)
+        {
+            return false;
+        }
+
         final Block block = blockState.getBlock();
         return block.builtInRegistryHolder().is(ModTags.WEAK_SOLID_BLOCKS) && canBlockSurviveWithoutSupport(block);
     }
diff --git a/src/main/resources/META-INF/accesstransformer.cfg b/src/main/resources/META-INF/accesstransformer.cfg
index 151f82573..bfece6ef9 100644
--- a/src/main/resources/META-INF/accesstransformer.cfg
+++ b/src/main/resources/META-INF/accesstransformer.cfg
@@ -23,3 +23,5 @@ public net.minecraft.world.level.levelgen.SurfaceRules$SurfaceRule
 
 # keybinds
 public net.minecraft.client.KeyMapping f_90818_ # clickCount
+
+public net.minecraft.world.level.block.state.BlockBehaviour$Properties f_60884_ # hasCollision