diff --git a/site/README.md b/site/README.md
index 7a287ec84dd..73fd185ee12 100644
--- a/site/README.md
+++ b/site/README.md
@@ -44,13 +44,6 @@ subdirectory of `site`.
 git clone --branch=asf-site https://github.com/apache/arrow-site.git asf-site
 ```
 
-Also, from the `site` directory, run the following command to import the format
-markdown documents so that they will rendered.
-
-```
-scripts/sync_format_docs.sh
-```
-
 ## Previewing the site
 
 From the `site` directory, run the following to generate HTML files and run the
diff --git a/site/_config.yml b/site/_config.yml
index b7ec25be839..ae420e4407a 100644
--- a/site/_config.yml
+++ b/site/_config.yml
@@ -30,7 +30,6 @@ include:
 exclude:
   - Gemfile
   - Gemfile.lock
-  - _docs/format/*
   - ruby
   - asf-site
   - scripts
diff --git a/site/_docs/ipc.md b/site/_docs/ipc.md
deleted file mode 100644
index bc22dc3bfa7..00000000000
--- a/site/_docs/ipc.md
+++ /dev/null
@@ -1,25 +0,0 @@
----
-layout: docs
-title: Arrow Messaging and IPC
-permalink: /docs/ipc.html
----
-<!--
-{% comment %}
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements.  See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License, Version 2.0
-(the "License"); you may not use this file except in compliance with
-the License.  You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-{% endcomment %}
--->
-
-{% include_relative format/IPC.md %}
\ No newline at end of file
diff --git a/site/_docs/memory_layout.md b/site/_docs/memory_layout.md
deleted file mode 100644
index 74cd7ed7f7d..00000000000
--- a/site/_docs/memory_layout.md
+++ /dev/null
@@ -1,25 +0,0 @@
----
-layout: docs
-title: Physical Memory Layout
-permalink: /docs/memory_layout.html
----
-<!--
-{% comment %}
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements.  See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License, Version 2.0
-(the "License"); you may not use this file except in compliance with
-the License.  You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-{% endcomment %}
--->
-
-{% include_relative format/Layout.md %}
\ No newline at end of file
diff --git a/site/_docs/metadata.md b/site/_docs/metadata.md
deleted file mode 100644
index 382ab0eaaf6..00000000000
--- a/site/_docs/metadata.md
+++ /dev/null
@@ -1,25 +0,0 @@
----
-layout: docs
-title: Arrow Metadata
-permalink: /docs/metadata.html
----
-<!--
-{% comment %}
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements.  See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License, Version 2.0
-(the "License"); you may not use this file except in compliance with
-the License.  You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-{% endcomment %}
--->
-
-{% include_relative format/Metadata.md %}
\ No newline at end of file
diff --git a/site/_includes/header.html b/site/_includes/header.html
index 2abf60f9da7..39a1d056caa 100644
--- a/site/_includes/header.html
+++ b/site/_includes/header.html
@@ -35,17 +35,11 @@
             <a class="dropdown-item" href="{{ site.baseurl }}/powered_by/">Powered By</a>
           </div>
         </li>
-        <li class="nav-item dropdown">
-          <a class="nav-link dropdown-toggle" href="#"
-             id="navbarDropdownSpecification" role="button" data-toggle="dropdown"
-             aria-haspopup="true" aria-expanded="false">
+        <li class="nav-item">
+          <a class="nav-link" href="{{ site.baseurl }}/docs/format/README.html"
+             role="button" aria-haspopup="true" aria-expanded="false">
              Specification
           </a>
-          <div class="dropdown-menu" aria-labelledby="navbarDropdownSpecification">
-            <a class="dropdown-item" href="{{ site.baseurl }}/docs/memory_layout.html">Memory Layout</a>
-            <a class="dropdown-item" href="{{ site.baseurl }}/docs/metadata.html">Metadata</a>
-            <a class="dropdown-item" href="{{ site.baseurl }}/docs/ipc.html">Messaging / IPC</a>
-          </div>
         </li>
         <li class="nav-item dropdown">
           <a class="nav-link dropdown-toggle" href="#"