diff --git a/TODO.md b/TODO.md
index f3c2678..ca9fc17 100644
--- a/TODO.md
+++ b/TODO.md
@@ -22,7 +22,7 @@
 * Benchmarks
 * Full fuse method coverage
 * Clippy
-* Do not estimate meta size
+* Central repository layout class
 
 ## Other
 * Homepage
diff --git a/src/repository/backup.rs b/src/repository/backup.rs
index e12ddfb..0407a5e 100644
--- a/src/repository/backup.rs
+++ b/src/repository/backup.rs
@@ -154,15 +154,8 @@ impl Repository {
     ) -> Result<Inode, RepositoryError> {
         let path = path.as_ref();
         let mut inode = try!(self.create_inode(path, reference));
-        let meta_size = inode.estimate_meta_size();
-        inode.cum_size = inode.size + meta_size;
-        if let Some(ref_inode) = reference {
-            if !ref_inode.is_same_meta_quick(&inode) {
-                backup.changed_data_size += inode.size + meta_size;
-            }
-        } else {
-            backup.changed_data_size += inode.size + meta_size;
-        }
+        let mut meta_size = 0;
+        inode.cum_size = inode.size;
         if inode.file_type == FileType::Directory {
             inode.cum_dirs = 1;
             let mut children = BTreeMap::new();
@@ -197,14 +190,30 @@ impl Repository {
                     Err(err) => return Err(err)
                 };
                 let chunks = try!(self.put_inode(&child_inode));
-                children.insert(name, chunks);
                 inode.cum_size += child_inode.cum_size;
+                for &(_, len) in chunks.iter() {
+                    meta_size += len as u64;
+                }
                 inode.cum_dirs += child_inode.cum_dirs;
                 inode.cum_files += child_inode.cum_files;
+                children.insert(name, chunks);
             }
             inode.children = Some(children);
         } else {
             inode.cum_files = 1;
+            if let Some(FileData::ChunkedIndirect(ref chunks)) = inode.data {
+                for &(_, len) in chunks.iter() {
+                    meta_size += len as u64;
+                }
+            }
+        }
+        inode.cum_size += meta_size;
+        if let Some(ref_inode) = reference {
+            if !ref_inode.is_same_meta_quick(&inode) {
+                backup.changed_data_size += inode.size + meta_size;
+            }
+        } else {
+            backup.changed_data_size += inode.size + meta_size;
         }
         Ok(inode)
     }
@@ -226,6 +235,9 @@ impl Repository {
         let elapsed = Local::now().signed_duration_since(start);
         backup.date = start.timestamp();
         backup.total_data_size = root_inode.cum_size;
+        for &(_, len) in backup.root.iter() {
+            backup.total_data_size += len as u64;
+        }
         backup.file_count = root_inode.cum_files;
         backup.dir_count = root_inode.cum_dirs;
         backup.duration = elapsed.num_milliseconds() as f32 / 1_000.0;
diff --git a/src/repository/metadata.rs b/src/repository/metadata.rs
index 4e5e853..572506a 100644
--- a/src/repository/metadata.rs
+++ b/src/repository/metadata.rs
@@ -265,11 +265,6 @@ impl Inode {
     pub fn decode(data: &[u8]) -> Result<Self, InodeError> {
         Ok(try!(msgpack::decode(&data)))
     }
-
-    #[inline]
-    pub fn estimate_meta_size(&self) -> u64 {
-        1000
-    }
 }
 
 
diff --git a/src/repository/tarfile.rs b/src/repository/tarfile.rs
index 1251e85..220870d 100644
--- a/src/repository/tarfile.rs
+++ b/src/repository/tarfile.rs
@@ -68,10 +68,15 @@ impl Repository {
             let path = try!(entry.path()).to_path_buf();
             match self.import_tar_entry(&mut entry) {
                 Ok(mut inode) => {
-                    inode.cum_size = inode.size + inode.estimate_meta_size();
+                    inode.cum_size = inode.size;
                     if inode.file_type == FileType::Directory {
                         inode.cum_dirs = 1;
                     } else {
+                        if let Some(FileData::ChunkedIndirect(ref chunks)) = inode.data {
+                            for &(_, len) in chunks.iter() {
+                                inode.cum_size += len as u64;
+                            }
+                        }
                         inode.cum_files = 1;
                     }
                     if let Some(parent_path) = path.parent() {
@@ -106,10 +111,13 @@ impl Repository {
                 if let Some(parent_path) = path.parent() {
                     if let Some(&mut (ref mut parent_inode, ref mut children)) = inodes.get_mut(parent_path) {
                         children.remove(&inode.name);
-                        parent_inode.children.as_mut().unwrap().insert(inode.name.clone(), chunks);
                         parent_inode.cum_size += inode.cum_size;
+                        for &(_, len) in chunks.iter() {
+                            parent_inode.cum_size += len as u64;
+                        }
                         parent_inode.cum_files += inode.cum_files;
                         parent_inode.cum_dirs += inode.cum_dirs;
+                        parent_inode.children.as_mut().unwrap().insert(inode.name.clone(), chunks);
                         continue
                     }
                 }
@@ -124,17 +132,20 @@ impl Repository {
                 file_type: FileType::Directory,
                 mode: 0o755,
                 name: "archive".to_string(),
-                cum_size: 1000,
+                cum_size: 0,
                 cum_files: 0,
                 cum_dirs: 1,
                 ..Default::default()
             };
             let mut children = BTreeMap::new();
             for (inode, chunks) in roots {
-                children.insert(inode.name, chunks);
                 root_inode.cum_size += inode.cum_size;
+                for &(_, len) in chunks.iter() {
+                    root_inode.cum_size += len as u64;
+                }
                 root_inode.cum_files += inode.cum_files;
                 root_inode.cum_dirs += inode.cum_dirs;
+                children.insert(inode.name, chunks);
             }
             root_inode.children = Some(children);
             let chunks = try!(self.put_inode(&root_inode));