diff --git a/config/permissions.yaml b/config/permissions.yaml
index 39e91b57..1aa0c43e 100644
--- a/config/permissions.yaml
+++ b/config/permissions.yaml
@@ -163,6 +163,8 @@ perms: # Here comes a list with all Permission names (they have a perm_[name] co
         label: "tools.builtin_footprints_viewer.title"
       ic_logos:
         label: "perm.tools.ic_logos"
+      multi_build:
+        label: "tools.multi_build.title"
 
   info_providers:
     label: "perm.part.info_providers"
diff --git a/src/Controller/ToolsController.php b/src/Controller/ToolsController.php
index 76dffb4d..b75f4ee1 100644
--- a/src/Controller/ToolsController.php
+++ b/src/Controller/ToolsController.php
@@ -31,9 +31,14 @@ use App\Services\System\GitVersionInfoProvider;
 use App\Services\System\UpdateAvailableFacade;
 use App\Settings\AppSettings;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
 use Symfony\Component\Runtime\SymfonyRuntime;
+use Doctrine\ORM\EntityManagerInterface;
+use App\Entity\ProjectSystem\Project;
+use App\Form\ProjectSystem\ProjectMultiBuildType;
+use Psr\Log\LoggerInterface;
 
 #[Route(path: '/tools')]
 class ToolsController extends AbstractController
@@ -122,6 +127,66 @@ class ToolsController extends AbstractController
         ]);
     }
 
+    #[Route(path: '/multi_build', name: 'tools_multi_build')]
+    public function multiBuild(LoggerInterface $logger, EntityManagerInterface $entityManager, Request $request): Response
+    {
+        //$this->denyAccessUnlessGranted('@tools.multi_build');
+        $all_projects = $entityManager->getRepository(Project::class)->findAll();
+
+        $form = $this->createForm(ProjectMultiBuildType::class, [], ['projects'=>$all_projects]);
+
+        $form->handleRequest($request);
+        $combined_bom=[];
+        $needs_ordering = [];
+        $can_build = true;
+        if ($form->isSubmitted()) 
+        {            
+            if ($form->isValid()) 
+            {
+                $submitted = "YES";                
+                foreach($all_projects as $p)
+                {
+                    $count_for_project = $form->get($p->getID() . "_project")->getData() + 0;
+                    $logger->Info("QTY", ['count_for_project'=>$count_for_project, 'name'=>$p->getName()]);
+                    if ($count_for_project > 0)
+                    {
+                        $logger->Info("BOMSIZE", ['bomsize'=>count($p->getBomEntries())]);
+                        foreach ($p->getBomEntries() as $bom_entry) 
+                        {
+                            $part_id = $bom_entry->getPart()->getID();
+                            $logger->Info("ISAPART", ['q'=>$bom_entry->getQuantity(), 'name'=>$bom_entry->getPart()->getName()]);
+                            if (array_key_exists($part_id, $combined_bom))
+                            {
+                                $combined_bom[$part_id]['quantity'] += $bom_entry->getQuantity() * $count_for_project;
+                            }
+                            else
+                            {
+                                $combined_bom[$part_id] = array('quantity'=>$bom_entry->getQuantity() * $count_for_project, 'part'=>$bom_entry->getPart());
+                            }
+                        }
+                    }                    
+                }   
+                
+                foreach($combined_bom as $cb)
+                {
+                    $total_instock = $cb['part']->getAmountSum();
+                    $logger->Info("COMBINED BOM", ['total_instock'=>$total_instock, 'needed'=>$cb['quantity']]);
+                    if ($total_instock < $cb['quantity'])
+                    {
+                        $needs_ordering[] = array('needed'=>($cb['quantity']-$total_instock), 'part'=>$cb['part']);
+                        $can_build = false;
+                    }
+                }
+            }
+        }
+
+        return $this->render('tools/multi_build/multi_build.html.twig', [
+            'form'=>$form,
+            'needs_ordering'=>$needs_ordering,
+            'can_build'=>$can_build
+        ]);
+    }
+
     #[Route(path: '/ic_logos', name: 'tools_ic_logos')]
     public function icLogos(): Response
     {
diff --git a/src/Form/ProjectSystem/ProjectMultiBuildType.php b/src/Form/ProjectSystem/ProjectMultiBuildType.php
new file mode 100644
index 00000000..4a949954
--- /dev/null
+++ b/src/Form/ProjectSystem/ProjectMultiBuildType.php
@@ -0,0 +1,68 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2026 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\Form\ProjectSystem;
+
+use App\Services\InfoProviderSystem\ProviderRegistry;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\Extension\Core\Type\SubmitType;
+use Symfony\Component\Form\Extension\Core\Type\UrlType;
+use Symfony\Component\Form\Extension\Core\Type\NumberType;
+use Symfony\Component\Form\FormBuilderInterface;
+use App\Entity\ProjectSystem\Project;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Psr\Log\LoggerInterface;
+
+class ProjectMultiBuildType extends AbstractType
+{
+    private LoggerInterface $logger;
+    public function __construct(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $this->logger->info("LEN {len}", ['len'=>count($options['projects'])]);
+        foreach($options['projects'] as $p)
+        {
+            $builder->add($p->getID() . '_project', NumberType::class, [
+                'label' => $p->getName(),
+                'required' => false,
+            ],0);            
+        }
+
+        $builder->add('submit', SubmitType::class, [
+            'label' => 'info_providers.search.submit',
+        ]);
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setDefaults([
+            'projects' => [],
+        ]);
+        $resolver->setAllowedTypes('projects', 'array');
+    }
+}
diff --git a/src/Helpers/Projects/ProjectMultiBuildRequest.php b/src/Helpers/Projects/ProjectMultiBuildRequest.php
new file mode 100644
index 00000000..108d63d0
--- /dev/null
+++ b/src/Helpers/Projects/ProjectMultiBuildRequest.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+namespace App\Helpers\Projects;
+
+use App\Entity\Parts\Part;
+use App\Entity\Parts\PartLot;
+use App\Entity\ProjectSystem\Project;
+use App\Entity\ProjectSystem\ProjectBOMEntry;
+use App\Validator\Constraints\ProjectSystem\ValidProjectBuildRequest;
+
+/**
+ * @see \App\Tests\Helpers\Projects\ProjectBuildRequestTest
+ */
+#[ValidProjectBuildRequest]
+final class ProjectBuildRequest
+{
+
+
+}
diff --git a/src/Services/Trees/ToolsTreeBuilder.php b/src/Services/Trees/ToolsTreeBuilder.php
index 6397e3af..df2fcb2e 100644
--- a/src/Services/Trees/ToolsTreeBuilder.php
+++ b/src/Services/Trees/ToolsTreeBuilder.php
@@ -131,6 +131,12 @@ class ToolsTreeBuilder
                 $this->urlGenerator->generate('tools_builtin_footprints_viewer')
             ))->setIcon('fa-treeview fa-fw fa-solid fa-images');
         }
+        if ($this->security->isGranted('@tools.multi_build')) {
+            $nodes[] = (new TreeViewNode(
+                "Multi Build",
+                $this->urlGenerator->generate('tools_multi_build')
+            ))->setIcon('fa-treeview fa-fw fa-solid fa-images');
+        }
         if ($this->security->isGranted('@tools.ic_logos')) {
             $nodes[] = (new TreeViewNode(
                 $this->translator->trans('perm.tools.ic_logos'),
diff --git a/templates/tools/multi_build/multi_build.html.twig b/templates/tools/multi_build/multi_build.html.twig
new file mode 100644
index 00000000..d611bf89
--- /dev/null
+++ b/templates/tools/multi_build/multi_build.html.twig
@@ -0,0 +1,28 @@
+{% extends "main_card.html.twig" %}
+
+{% block title %}Multi Build{% endblock %}
+
+
+{% block card_title %}<i class="fas fa-chart-bar fa-fw"></i>
+    Multi Build{% endblock %}
+
+{% block card_body %}
+
+    <div class="alert {% if can_build %}alert-success{% else %}alert-danger{% endif %}" role="alert">
+        {% if not can_build %}
+            <h5><i class="fa-solid fa-circle-exclamation fa-fw"></i> {% trans %}project.builds.build_not_possible{% endtrans %}</h5>
+            <ul>
+                {% for bom_entry in needs_ordering %}
+                    <li>
+                     <b><a href="{{ entity_url(bom_entry.part) }}">{{ bom_entry.part.name }}</a></b>
+                     {{ bom_entry.needed }} Needed.
+                    </li>
+                {% endfor %}
+            </ul>
+        {% endif %}
+    </div>
+
+
+{{ form(form) }}
+
+{% endblock %}
\ No newline at end of file