diff --git a/types.hpp b/types.hpp
index d4f656c..46abfe0 100644
--- a/types.hpp
+++ b/types.hpp
@@ -3,6 +3,7 @@
 #include <map>
 #include <sdbusplus/message.hpp>
 #include <string>
+#include <variant>
 
 namespace ipmi
 {
@@ -12,7 +13,18 @@
 using Path = std::string;
 
 using Property = std::string;
-using Value = sdbusplus::message::variant<bool, int64_t, std::string>;
+/// The Value type represents all types that are possible for a FRU info.
+/// Most fields in a FRU info are boolean or string. There is also a
+/// 3-byte timestamp that, being converted to unix time, fits well into
+/// uint64_t.
+///
+/// However for multirecord area records, there may be other data types,
+/// not all of which are directly listed in IPMI FRU specification.
+///
+/// Hence, this type lists all types possible for sbdusplus except for
+/// unixfd, object_path, and signature.
+using Value = std::variant<bool, uint8_t, uint16_t, int16_t, uint32_t, int32_t,
+                           uint64_t, int64_t, double, std::string>;
 using PropertyMap = std::map<Property, Value>;
 
 using Interface = std::string;