diff --git a/DOCUMENTATION.md b/DOCUMENTATION.md
index 5936147a..daeedb98 100644
--- a/DOCUMENTATION.md
+++ b/DOCUMENTATION.md
@@ -801,6 +801,18 @@ Default: `100000000` (100 Mbyte)
 
 In case of using a reverse proxy in front of check also there related option.
 
+##### max_resource_size
+
+_(>= 3.5.10)_
+
+The maximum size of a resource. (bytes)
+
+Default: `10000000` (10 Mbyte)
+
+Limited to 80% of max_content_length to cover plain base64 encoded payload.
+
+Announced to clients requesting "max-resource-size" via PROPFIND.
+
 ##### timeout
 
 Socket timeout. (seconds)
diff --git a/config b/config
index bca1b4fa..2f85c4e0 100644
--- a/config
+++ b/config
@@ -25,6 +25,11 @@
 # In case of using a reverse proxy in front of check also there related option
 #max_content_length = 100000000
 
+# Max resource size (bytes), default: 10 Mbyte
+# Limited to 80% of max_content_length to cover plain base64 encoded payload
+# Announced to clients requesting "max-resource-size" via PROPFIND
+#max_ressource_size = 10000000
+
 # Socket timeout (seconds)
 #timeout = 30
 
diff --git a/radicale/config.py b/radicale/config.py
index fb548042..519269bc 100644
--- a/radicale/config.py
+++ b/radicale/config.py
@@ -164,6 +164,10 @@ DEFAULT_CONFIG_SCHEMA: types.CONFIG_SCHEMA = OrderedDict([
             "value": "100000000",
             "help": "maximum size of request body in bytes (default: 100 Mbyte)",
             "type": positive_int}),
+        ("max_resource_size", {
+            "value": "10000000",
+            "help": "maximum size of resource (default: 10 Mbyte)",
+            "type": positive_int}),
         ("timeout", {
             "value": "30",
             "help": "socket timeout",