diff --git a/src/app/(main)/projects/create/page.tsx b/src/app/(main)/projects/create/page.tsx
index ebe69cf..60ab586 100644
--- a/src/app/(main)/projects/create/page.tsx
+++ b/src/app/(main)/projects/create/page.tsx
@@ -1,5 +1,5 @@
 import CreateProject from "@/components/CreateProject";
-import { getServerI18n } from "@/i18n";
+import { I18nProvider, getServerI18n } from "@/i18n";
 import Typography from "@mui/material/Typography";
 import { Metadata } from "next";
 
@@ -13,7 +13,9 @@ const Projects: React.FC = async () => {
   return (
     <>
       <Typography variant="h4">{t("Create Project")}</Typography>
-      <CreateProject />
+      <I18nProvider namespaces={["projects"]}>
+        <CreateProject />
+      </I18nProvider>
     </>
   );
 };
diff --git a/src/app/api/projects/actions.ts b/src/app/api/projects/actions.ts
index edbaa24..f05ef40 100644
--- a/src/app/api/projects/actions.ts
+++ b/src/app/api/projects/actions.ts
@@ -22,9 +22,7 @@ export interface CreateProjectInputs {
   // Tasks
   tasks: {
     [taskId: Task["id"]]: {
-      manhourAllocation: {
-        [gradeId: number]: number;
-      };
+      manhourAllocation: ManhourAllocation;
     };
   };
 
@@ -41,6 +39,10 @@ export interface CreateProjectInputs {
   };
 }
 
+export interface ManhourAllocation {
+  [gradeId: number]: number;
+}
+
 export interface PaymentInputs {
   id: number;
   description: string;
diff --git a/src/components/CreateProject/ResourceMilestone.tsx b/src/components/CreateProject/ResourceMilestone.tsx
index aa12789..0706851 100644
--- a/src/components/CreateProject/ResourceMilestone.tsx
+++ b/src/components/CreateProject/ResourceMilestone.tsx
@@ -30,7 +30,10 @@ export interface Props {
   defaultManhourBreakdownByGrade?: { [gradeId: number]: number };
 }
 
-const ResourceMilestone: React.FC<Props> = ({ allTasks }) => {
+const ResourceMilestone: React.FC<Props> = ({
+  allTasks,
+  defaultManhourBreakdownByGrade,
+}) => {
   const { t } = useTranslation();
   const { getValues } = useFormContext<CreateProjectInputs>();
   const tasks = useMemo(() => {
@@ -79,9 +82,7 @@ const ResourceMilestone: React.FC<Props> = ({ allTasks }) => {
           </FormControl>
           <ResourceSection
             tasks={currentTasks}
-            defaultManhourBreakdownByGrade={{}}
-            onSetManhours={() => {}}
-            onAllocateManhours={() => {}}
+            manhourBreakdownByGrade={defaultManhourBreakdownByGrade}
           />
           <MilestoneSection taskGroupId={currentTaskGroupId} />
           <CardActions sx={{ justifyContent: "flex-end" }}>
diff --git a/src/components/CreateProject/ResourceSection.tsx b/src/components/CreateProject/ResourceSection.tsx
index bea7295..9b60fc1 100644
--- a/src/components/CreateProject/ResourceSection.tsx
+++ b/src/components/CreateProject/ResourceSection.tsx
@@ -9,22 +9,40 @@ import {
   ListItemText,
   TextField,
 } from "@mui/material";
-import { useState, useCallback, useEffect } from "react";
+import { useState, useCallback, useEffect, useMemo } from "react";
 import { useTranslation } from "react-i18next";
 import { Props as ResourceMilestoneProps } from "./ResourceMilestone";
+import StyledDataGrid from "../StyledDataGrid";
+import { useForm, useFormContext } from "react-hook-form";
+import { GridColDef, GridRowModel, useGridApiRef } from "@mui/x-data-grid";
+import {
+  CreateProjectInputs,
+  ManhourAllocation,
+} from "@/app/api/projects/actions";
+import isEmpty from "lodash/isEmpty";
+import _reduce from "lodash/reduce";
+
+const mockGrades = [1, 2, 3, 4, 5];
 
 interface Props {
   tasks: Task[];
-  defaultManhourBreakdownByGrade: ResourceMilestoneProps["defaultManhourBreakdownByGrade"];
-  onSetManhours: (hours: number, taskId: Task["id"]) => void;
-  onAllocateManhours: () => void;
+  manhourBreakdownByGrade: ResourceMilestoneProps["defaultManhourBreakdownByGrade"];
 }
 
+type Row = ManhourAllocation & { id: "manhourAllocation" };
+
+const parseValidManhours = (value: number | string): number => {
+  const inputNumber = Number(value);
+  return isNaN(inputNumber) || inputNumber < 0 ? 0 : inputNumber;
+};
+
 const ResourceSection: React.FC<Props> = ({
   tasks,
-  onAllocateManhours,
-  onSetManhours,
-  defaultManhourBreakdownByGrade,
+  manhourBreakdownByGrade = mockGrades.reduce<
+    NonNullable<Props["manhourBreakdownByGrade"]>
+  >((acc, grade) => {
+    return { ...acc, [grade]: 1 };
+  }, {}),
 }) => {
   const { t } = useTranslation();
   const [selectedTaskId, setSelectedTaskId] = useState(tasks[0].id);
@@ -40,10 +58,116 @@ const ResourceSection: React.FC<Props> = ({
     setSelectedTaskId(tasks[0].id);
   }, [tasks]);
 
+  const { getValues, setValue } = useFormContext<CreateProjectInputs>();
+
+  const updateTaskAllocations = useCallback(
+    (newAllocations: ManhourAllocation) => {
+      setValue("tasks", {
+        ...getValues("tasks"),
+        [selectedTaskId]: {
+          manhourAllocation: newAllocations,
+        },
+      });
+    },
+    [getValues, selectedTaskId, setValue],
+  );
+
+  const gridApiRef = useGridApiRef();
+  const columns = useMemo(() => {
+    return mockGrades.map<GridColDef>((grade) => ({
+      field: grade.toString(),
+      editable: true,
+      sortable: false,
+      width: 120,
+      headerName: t("Grade {{grade}}", { grade }),
+      type: "number",
+      valueParser: parseValidManhours,
+      valueFormatter(params) {
+        return Number(params.value).toFixed(2);
+      },
+    }));
+  }, [t]);
+
+  const rows = useMemo<Row[]>(() => {
+    const initialAllocation =
+      getValues("tasks")[selectedTaskId].manhourAllocation;
+    if (!isEmpty(initialAllocation)) {
+      return [{ ...initialAllocation, id: "manhourAllocation" }];
+    }
+    return [
+      mockGrades.reduce(
+        (acc, grade) => {
+          return { ...acc, [grade]: 0 };
+        },
+        { id: "manhourAllocation" },
+      ),
+    ];
+  }, [getValues, selectedTaskId]);
+
+  const initialManhours = useMemo(() => {
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    const { id, ...allocations } = rows[0];
+    return Object.values(allocations).reduce((acc, hours) => acc + hours, 0);
+  }, [rows]);
+
+  const {
+    register,
+    reset,
+    getValues: getManhourFormValues,
+    setValue: setManhourFormValue,
+  } = useForm<{ manhour: number }>({
+    defaultValues: {
+      manhour: initialManhours,
+    },
+  });
+
+  // Reset man hour input when task changes
+  useEffect(() => {
+    reset({ manhour: initialManhours });
+  }, [initialManhours, reset, selectedTaskId]);
+
+  const updateAllocation = useCallback(() => {
+    const inputHour = getManhourFormValues("manhour");
+    const ratioSum = Object.values(manhourBreakdownByGrade).reduce(
+      (acc, ratio) => acc + ratio,
+      0,
+    );
+    const newAllocations = _reduce(
+      manhourBreakdownByGrade,
+      (acc, value, key) => {
+        return { ...acc, [key]: (inputHour / ratioSum) * value };
+      },
+      {},
+    );
+    gridApiRef.current.updateRows([
+      { id: "manhourAllocation", ...newAllocations },
+    ]);
+    updateTaskAllocations(newAllocations);
+  }, [
+    getManhourFormValues,
+    gridApiRef,
+    manhourBreakdownByGrade,
+    updateTaskAllocations,
+  ]);
+
+  const processRowUpdate = useCallback(
+    (newRow: GridRowModel) => {
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      const { id: rowId, ...newAllocations } = newRow;
+      const totalHours = Object.values(
+        newAllocations as ManhourAllocation,
+      ).reduce<number>((acc, hour) => acc + hour, 0);
+      setManhourFormValue("manhour", totalHours);
+      updateTaskAllocations(newAllocations);
+      return newRow;
+    },
+    [setManhourFormValue, updateTaskAllocations],
+  );
+
   return (
     <Box marginBlock={4}>
       <Typography variant="overline" display="block" marginBlockEnd={1}>
-        {t("Resource")}
+        {t("Task Breakdown")}
       </Typography>
       <Grid container spacing={2} columns={{ xs: 6, sm: 12 }}>
         <Grid item xs={6}>
@@ -64,7 +188,35 @@ const ResourceSection: React.FC<Props> = ({
           </Paper>
         </Grid>
         <Grid item xs={6}>
-          <TextField label={t("Mahours Allocated to Task")} fullWidth />
+          <TextField
+            label={t("Mahours Allocated to Task")}
+            fullWidth
+            type="number"
+            {...register("manhour", {
+              valueAsNumber: true,
+              onBlur: updateAllocation,
+            })}
+          />
+          <Paper
+            elevation={2}
+            sx={{
+              marginBlockStart: 2,
+              ".MuiDataGrid-root .MuiDataGrid-columnHeader:focus-within": {
+                outlineOffset: -2,
+              },
+            }}
+          >
+            <StyledDataGrid
+              apiRef={gridApiRef}
+              disableColumnMenu
+              hideFooter
+              disableRowSelectionOnClick
+              rows={rows}
+              columns={columns}
+              processRowUpdate={processRowUpdate}
+              sx={{ paddingBlockEnd: 2 }}
+            />
+          </Paper>
         </Grid>
       </Grid>
     </Box>
diff --git a/src/i18n/en/common.json b/src/i18n/en/common.json
new file mode 100644
index 0000000..2b2f3a3
--- /dev/null
+++ b/src/i18n/en/common.json
@@ -0,0 +1,3 @@
+{
+    "Grade {{grade}}": "Grade {{grade}}"
+}
\ No newline at end of file
diff --git a/src/i18n/en/projects.json b/src/i18n/en/projects.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/src/i18n/en/projects.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/src/i18n/en/translation.json b/src/i18n/en/translation.json
deleted file mode 100644
index 080318d..0000000
--- a/src/i18n/en/translation.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "test": "abc"
-}
\ No newline at end of file
diff --git a/src/i18n/zh/common.json b/src/i18n/zh/common.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/src/i18n/zh/common.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/src/i18n/zh/projects.json b/src/i18n/zh/projects.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/src/i18n/zh/projects.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/src/i18n/zh/translation.json b/src/i18n/zh/translation.json
deleted file mode 100644
index cd1d02f..0000000
--- a/src/i18n/zh/translation.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "test": "def"
-}
\ No newline at end of file