diff --git a/package-lock.json b/package-lock.json
index 9de71a8..3b1a7b0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4960,9 +4960,9 @@
       }
     },
     "node_modules/ts-linq-light": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/ts-linq-light/-/ts-linq-light-1.0.0.tgz",
-      "integrity": "sha512-8GGyHkHlKuKFTbT/Xz/0y72OTKl1hVRMJ0MqXAaWaergCExKw3bd5M6DR3NSOA7UL0gkTMhWsql9kFYyAjkIdQ==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/ts-linq-light/-/ts-linq-light-1.0.1.tgz",
+      "integrity": "sha512-Qk1TKZ8M/XYH6Vt+zUOtAyVOqezIMd3r7EDtgCPOnWgIs0Xdrj/miqUQAEoRl3LttbQQ/6gBMhM/84S/mTb/sg==",
       "license": "MIT",
       "engines": {
         "node": ">=18.0.0"
diff --git a/src/v2/core/CalendarOrchestrator.ts b/src/v2/core/CalendarOrchestrator.ts
index 78964a7..b3ac610 100644
--- a/src/v2/core/CalendarOrchestrator.ts
+++ b/src/v2/core/CalendarOrchestrator.ts
@@ -1,23 +1,10 @@
 import { from } from 'ts-linq-light';
-import { ViewConfig, GroupingConfig } from './ViewConfig';
-import { RenderContext } from './RenderContext';
-import { IGroupingRenderer } from './IGroupingRenderer';
+import { ViewConfig } from './ViewConfig';
+import { IGroupingRenderer, RenderContext } from './IGroupingRenderer';
 import { IGroupingStore } from './IGroupingStore';
+import { RenderBuilder, RenderData } from './RenderBuilder';
 import { EventRenderer } from '../features/event/EventRenderer';
 
-interface HierarchyNode {
-  type: string;
-  id: string;
-  data: unknown;
-  parentId?: string;
-  children: HierarchyNode[];
-}
-
-interface GroupingData {
-  items: { id: string; data: unknown }[];
-  byParent: Map<string, { id: string; data: unknown }[]> | null;
-}
-
 export class CalendarOrchestrator {
   constructor(
     private renderers: IGroupingRenderer[],
@@ -40,115 +27,60 @@ export class CalendarOrchestrator {
       throw new Error('Missing swp-calendar-header or swp-day-columns');
     }
 
-    const groupingData = this.fetchAllData(viewConfig.groupings);
-    const hierarchy = this.buildHierarchy(viewConfig.groupings, groupingData);
-    const totalColumns = this.countLeaves(hierarchy);
-
-    container.style.setProperty('--grid-columns', String(totalColumns));
-
-    const types = from(viewConfig.groupings).select(g => g.type).toArray();
-    headerContainer.dataset.levels = types.join(' ');
+    const context: RenderContext = { headerContainer, columnContainer };
 
+    // Clear containers
     headerContainer.innerHTML = '';
     columnContainer.innerHTML = '';
 
-    this.renderHierarchy(hierarchy, headerContainer, columnContainer);
+    // Set header levels
+    const types = from(viewConfig.groupings).select(g => g.type).toArray();
+    headerContainer.dataset.levels = types.join(' ');
 
-    // Render events from IndexedDB
+    // Hent alt data
+    const data: RenderData = {
+      teams: this.getItems('team', viewConfig),
+      resources: this.getItems('resource', viewConfig),
+      dates: this.getItems('date', viewConfig)
+    };
+
+    // Byg renderer chain
+    const builder = new RenderBuilder(context, data);
+
+    for (const grouping of viewConfig.groupings) {
+      const renderer = this.getRenderer(grouping.type);
+      if (renderer) {
+        const items = this.getItems(grouping.type, viewConfig);
+        builder.add(renderer, items);
+      }
+    }
+
+    // Beregn total columns og render
+    const totalColumns = builder.getTotalCount();
+    container.style.setProperty('--grid-columns', String(totalColumns));
+
+    builder.build();
+
+    // Render events
     const visibleDates = this.extractVisibleDates(viewConfig);
     await this.eventRenderer.render(container, visibleDates);
   }
 
+  private getItems(type: string, viewConfig: ViewConfig): ReturnType<typeof from> {
+    const grouping = from(viewConfig.groupings).firstOrDefault(g => g.type === type);
+    if (!grouping) return from([]);
+
+    if (type === 'date') {
+      return from(grouping.values);
+    }
+
+    const store = this.getStore(type);
+    if (!store) return from([]);
+
+    return from(store.getByIds(grouping.values));
+  }
+
   private extractVisibleDates(viewConfig: ViewConfig): string[] {
     return from(viewConfig.groupings).firstOrDefault(g => g.type === 'date')?.values || [];
   }
-
-  private fetchAllData(groupings: GroupingConfig[]): Map<string, GroupingData> {
-    const result = new Map<string, GroupingData>();
-
-    for (const g of groupings) {
-      if (g.type === 'date') {
-        result.set(g.type, {
-          items: from(g.values).select(v => ({ id: v, data: { id: v } })).toArray(),
-          byParent: null
-        });
-        continue;
-      }
-
-      const store = this.getStore(g.type);
-      if (!store) continue;
-      const rawItems = store.getByIds(g.values);
-      const items = from(rawItems).select((item: any) => ({ id: item.id, data: item })).toArray();
-      let byParent: Map<string, { id: string; data: unknown }[]> | null = null;
-      if (g.parentKey) {
-        byParent = new Map();
-        const grouped = from(items)
-          .where(item => (item.data as any)[g.parentKey!] != null)
-          .groupBy(item => (item.data as any)[g.parentKey!] as string);
-        for (const group of grouped) {
-          byParent.set(group.key, group.toArray());
-        }
-      }
-
-      result.set(g.type, { items, byParent });
-    }
-
-    return result;
-  }
-
-  private buildHierarchy(
-    groupings: GroupingConfig[],
-    data: Map<string, GroupingData>,
-    level = 0,
-    parentId?: string
-  ): HierarchyNode[] {
-    if (level >= groupings.length) return [];
-
-    const g = groupings[level];
-    const gData = data.get(g.type);
-    if (!gData) return [];
-
-    const items = parentId && gData.byParent
-      ? gData.byParent.get(parentId) ?? []
-      : gData.items;
-
-    return from(items).select(item => ({
-      type: g.type,
-      id: item.id,
-      data: item.data,
-      parentId,
-      children: this.buildHierarchy(groupings, data, level + 1, item.id)
-    })).toArray();
-  }
-
-  private countLeaves(nodes: HierarchyNode[]): number {
-    return nodes.reduce((sum, n) =>
-      sum + (n.children.length ? this.countLeaves(n.children) : 1), 0);
-  }
-
-  private renderHierarchy(
-    nodes: HierarchyNode[],
-    headerContainer: HTMLElement,
-    columnContainer: HTMLElement,
-    headerRow = 1
-  ): void {
-    for (const node of nodes) {
-      const renderer = this.getRenderer(node.type);
-      const colspan = this.countLeaves([node]) || 1;
-
-      renderer?.render({
-        headerContainer,
-        columnContainer,
-        values: [node.id],
-        headerRow,
-        columnIndex: 0, // Not used - grid auto-places
-        colspan,
-        parentId: node.parentId
-      } as RenderContext);
-
-      if (node.children.length) {
-        this.renderHierarchy(node.children, headerContainer, columnContainer, headerRow + 1);
-      }
-    }
-  }
 }
diff --git a/src/v2/core/IGroupingRenderer.ts b/src/v2/core/IGroupingRenderer.ts
index 392e381..39a784a 100644
--- a/src/v2/core/IGroupingRenderer.ts
+++ b/src/v2/core/IGroupingRenderer.ts
@@ -1,6 +1,17 @@
-import { RenderContext } from './RenderContext';
+import { IEnumerable } from 'ts-linq-light';
+import { NextFunction, RenderData } from './RenderBuilder';
 
-export interface IGroupingRenderer {
-  readonly type: string;
-  render(context: RenderContext): void;
+export interface RenderContext {
+  headerContainer: HTMLElement;
+  columnContainer: HTMLElement;
+}
+
+export interface IGroupingRenderer<T = unknown> {
+  readonly type: string;
+  render(
+    items: IEnumerable<T>,
+    data: RenderData,
+    next: NextFunction,
+    context: RenderContext
+  ): void;
 }
diff --git a/src/v2/core/RenderBuilder.ts b/src/v2/core/RenderBuilder.ts
new file mode 100644
index 0000000..e847547
--- /dev/null
+++ b/src/v2/core/RenderBuilder.ts
@@ -0,0 +1,82 @@
+import { from, IEnumerable } from 'ts-linq-light';
+import { IGroupingRenderer, RenderContext } from './IGroupingRenderer';
+
+export interface NextFunction {
+  count(items: IEnumerable<unknown>): number;
+  render(items: IEnumerable<unknown>): void;
+}
+
+export interface RenderData {
+  teams?: IEnumerable<unknown>;
+  resources?: IEnumerable<unknown>;
+  dates?: IEnumerable<unknown>;
+}
+
+interface RenderLevel {
+  renderer: IGroupingRenderer;
+  items: IEnumerable<unknown>;
+}
+
+export class RenderBuilder {
+  private levels: RenderLevel[] = [];
+
+  constructor(
+    private context: RenderContext,
+    private data: RenderData
+  ) {}
+
+  add(renderer: IGroupingRenderer, items: IEnumerable<unknown>): this {
+    this.levels.push({ renderer, items });
+    return this;
+  }
+
+  getTotalCount(): number {
+    if (this.levels.length === 0) return 0;
+
+    const chain = this.buildChain(0);
+    return chain.count(this.levels[0].items);
+  }
+
+  build(): void {
+    if (this.levels.length === 0) return;
+
+    const chain = this.buildChain(0);
+    chain.render(this.levels[0].items);
+  }
+
+  private buildChain(index: number): NextFunction {
+    if (index >= this.levels.length) {
+      // Leaf - ingen flere levels
+      return {
+        count: (items) => from(items).count(),
+        render: () => {}
+      };
+    }
+
+    const level = this.levels[index];
+    const nextChain = this.buildChain(index + 1);
+
+    return {
+      count: (items) => {
+        let total = 0;
+        for (const item of items) {
+          const childItems = this.getChildItems(index, item);
+          total += nextChain.count(childItems);
+        }
+        return total || from(items).count();
+      },
+      render: (items) => {
+        level.renderer.render(items, this.data, nextChain, this.context);
+      }
+    };
+  }
+
+  private getChildItems(levelIndex: number, _parentItem: unknown): IEnumerable<unknown> {
+    // Returnerer næste levels items - rendereren selv filtrerer baseret på parent
+    const nextLevel = this.levels[levelIndex + 1];
+    if (!nextLevel) {
+      return from([]);
+    }
+    return nextLevel.items;
+  }
+}
diff --git a/src/v2/core/RenderContext.ts b/src/v2/core/RenderContext.ts
deleted file mode 100644
index 841789e..0000000
--- a/src/v2/core/RenderContext.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export interface RenderContext {
-  headerContainer: HTMLElement;
-  columnContainer: HTMLElement;
-  values: string[];
-  headerRow: number;
-  colspan: number;
-  parentId?: string;
-  columnIndex: number; // Kept for interface compatibility, but not used by renderers
-}
diff --git a/src/v2/features/date/DateRenderer.ts b/src/v2/features/date/DateRenderer.ts
index 667ab4a..702bc69 100644
--- a/src/v2/features/date/DateRenderer.ts
+++ b/src/v2/features/date/DateRenderer.ts
@@ -1,14 +1,20 @@
-import { IGroupingRenderer } from '../../core/IGroupingRenderer';
-import { RenderContext } from '../../core/RenderContext';
+import { IEnumerable } from 'ts-linq-light';
+import { IGroupingRenderer, RenderContext } from '../../core/IGroupingRenderer';
+import { NextFunction, RenderData } from '../../core/RenderBuilder';
 import { DateService } from '../../core/DateService';
 
-export class DateRenderer implements IGroupingRenderer {
+export class DateRenderer implements IGroupingRenderer<string> {
   readonly type = 'date';
 
   constructor(private dateService: DateService) {}
 
-  render(context: RenderContext): void {
-    for (const dateStr of context.values) {
+  render(
+    dates: IEnumerable<string>,
+    _data: RenderData,
+    _next: NextFunction,
+    context: RenderContext
+  ): void {
+    for (const dateStr of dates) {
       const date = this.dateService.parseISO(dateStr);
 
       const headerCell = document.createElement('swp-day-header');
@@ -21,9 +27,10 @@ export class DateRenderer implements IGroupingRenderer {
 
       const column = document.createElement('swp-day-column');
       column.dataset.date = dateStr;
-      if (context.parentId) column.dataset.parentId = context.parentId;
       column.innerHTML = '<swp-events-layer></swp-events-layer>';
       context.columnContainer.appendChild(column);
+
+      // Leaf renderer - ingen next.render() kald
     }
   }
 }
diff --git a/src/v2/features/resource/ResourceRenderer.ts b/src/v2/features/resource/ResourceRenderer.ts
index b7b9fb4..4b72e71 100644
--- a/src/v2/features/resource/ResourceRenderer.ts
+++ b/src/v2/features/resource/ResourceRenderer.ts
@@ -1,16 +1,37 @@
-import { IGroupingRenderer } from '../../core/IGroupingRenderer';
-import { RenderContext } from '../../core/RenderContext';
+import { from, IEnumerable } from 'ts-linq-light';
+import { IGroupingRenderer, RenderContext } from '../../core/IGroupingRenderer';
+import { NextFunction, RenderData } from '../../core/RenderBuilder';
 
-export class ResourceRenderer implements IGroupingRenderer {
+interface Resource {
+  id: string;
+  name?: string;
+}
+
+export class ResourceRenderer implements IGroupingRenderer<Resource> {
   readonly type = 'resource';
 
-  render(context: RenderContext): void {
-    for (const resourceId of context.values) {
+  render(
+    resources: IEnumerable<Resource>,
+    data: RenderData,
+    next: NextFunction,
+    context: RenderContext
+  ): void {
+    const dates = data.dates || from([]);
+
+    for (const resource of resources) {
+      const colspan = next.count(dates);
+
       const cell = document.createElement('swp-resource-header');
-      cell.dataset.resourceId = resourceId;
-      cell.textContent = resourceId;
-      if (context.colspan > 1) cell.style.gridColumn = `span ${context.colspan}`;
+      cell.dataset.resourceId = resource.id;
+      cell.textContent = resource.name || resource.id;
+
+      if (colspan > 1) {
+        cell.style.gridColumn = `span ${colspan}`;
+      }
+
       context.headerContainer.appendChild(cell);
+
+      next.render(dates);
     }
   }
 }
diff --git a/src/v2/features/team/TeamRenderer.ts b/src/v2/features/team/TeamRenderer.ts
index c1e1d8e..bd74039 100644
--- a/src/v2/features/team/TeamRenderer.ts
+++ b/src/v2/features/team/TeamRenderer.ts
@@ -1,16 +1,47 @@
-import { IGroupingRenderer } from '../../core/IGroupingRenderer';
-import { RenderContext } from '../../core/RenderContext';
+import { from, IEnumerable } from 'ts-linq-light';
+import { IGroupingRenderer, RenderContext } from '../../core/IGroupingRenderer';
+import { NextFunction, RenderData } from '../../core/RenderBuilder';
 
-export class TeamRenderer implements IGroupingRenderer {
+interface Team {
+  id: string;
+  name?: string;
+}
+
+interface Resource {
+  id: string;
+  teamId?: string;
+}
+
+export class TeamRenderer implements IGroupingRenderer<Team> {
   readonly type = 'team';
 
-  render(context: RenderContext): void {
-    for (const teamId of context.values) {
+  render(
+    teams: IEnumerable<Team>,
+    data: RenderData,
+    next: NextFunction,
+    context: RenderContext
+  ): void {
+    const resources = data.resources as IEnumerable<Resource> || from([]);
+    const resourcesByTeam = from(resources).groupBy((r: Resource) => r.teamId || '');
+
+    for (const team of teams) {
+      const teamResources = from(resourcesByTeam)
+        .firstOrDefault(g => g.key === team.id);
+
+      const teamResourcesEnum = teamResources ? from(teamResources) : from([]);
+      const colspan = next.count(teamResourcesEnum);
+
       const cell = document.createElement('swp-team-header');
-      cell.dataset.teamId = teamId;
-      cell.textContent = teamId;
-      if (context.colspan > 1) cell.style.gridColumn = `span ${context.colspan}`;
+      cell.dataset.teamId = team.id;
+      cell.textContent = team.name || team.id;
+
+      if (colspan > 1) {
+        cell.style.gridColumn = `span ${colspan}`;
+      }
+
       context.headerContainer.appendChild(cell);
+
+      next.render(teamResourcesEnum);
     }
   }
 }
diff --git a/src/v2/index.ts b/src/v2/index.ts
index 7ddcc28..ecd176f 100644
--- a/src/v2/index.ts
+++ b/src/v2/index.ts
@@ -1,10 +1,10 @@
 // Core exports
 export { ViewTemplate, ViewConfig, GroupingConfig } from './core/ViewConfig';
-export { RenderContext } from './core/RenderContext';
-export { IGroupingRenderer } from './core/IGroupingRenderer';
+export { IGroupingRenderer, RenderContext } from './core/IGroupingRenderer';
 export { IGroupingStore } from './core/IGroupingStore';
 export { CalendarOrchestrator } from './core/CalendarOrchestrator';
 export { NavigationAnimator } from './core/NavigationAnimator';
+export { RenderBuilder, NextFunction, RenderData } from './core/RenderBuilder';
 
 // Feature exports
 export { DateRenderer } from './features/date';