diff --git a/ts/constants.ts b/ts/constants.ts
new file mode 100644
index 0000000..04510fb
--- /dev/null
+++ b/ts/constants.ts
@@ -0,0 +1,4 @@
+export const SIZEOF_SHORT = 2;
+export const SIZEOF_INT = 4;
+export const FILE_IDENTIFIER_LENGTH = 4;
+export const SIZE_PREFIX_LENGTH = 4;
\ No newline at end of file