diff --git a/legacy/src/Command/Resources/ResourcesGetCommand.php b/legacy/src/Command/Resources/ResourcesGetCommand.php
index 74683613..b32aad85 100644
--- a/legacy/src/Command/Resources/ResourcesGetCommand.php
+++ b/legacy/src/Command/Resources/ResourcesGetCommand.php
@@ -11,6 +11,7 @@
 use Platformsh\Cli\Service\PropertyFormatter;
 use Platformsh\Cli\Service\Table;
 use Platformsh\Client\Exception\EnvironmentStateException;
+use Platformsh\Client\Model\Deployment\WebApp;
 use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Input\ArgvInput;
 use Symfony\Component\Console\Input\InputInterface;
@@ -30,13 +31,14 @@ class ResourcesGetCommand extends ResourcesCommandBase
         'cpu' => 'CPU',
         'memory' => 'Memory (MB)',
         'disk' => 'Disk (MB)',
+        'object_storage' => 'Object storage (GB)',
         'instance_count' => 'Instances',
         'base_memory' => 'Base memory',
         'memory_ratio' => 'Memory ratio',
     ];
 
     /** @var string[] */
-    protected array $defaultColumns = ['service', 'profile_size', 'cpu_type', 'cpu', 'memory', 'disk', 'instance_count'];
+    protected array $defaultColumns = ['service', 'profile_size', 'cpu_type', 'cpu', 'memory', 'disk', 'object_storage', 'instance_count'];
 
     public function __construct(private readonly Api $api, private readonly Config $config, private readonly PropertyFormatter $propertyFormatter, private readonly ResourcesUtil $resourcesUtil, private readonly Selector $selector, private readonly Table $table)
     {
@@ -113,6 +115,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $cpuTypeOption = $input->getOption('cpu-type');
         $autoscalingIndicator = '<comment>(A)</comment>';
         $hasAutoscalingIndicator = false;
+        $hasObjectStorage = false;
         foreach ($services as $name => $service) {
             $properties = $service->getProperties();
             if (!$this->table->formatIsMachineReadable() && !empty($autoscalingEnabled[$name])) {
@@ -127,6 +130,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 'base_memory' => $empty,
                 'memory_ratio' => $empty,
                 'disk' => $empty,
+                'object_storage' => $empty,
                 'instance_count' => $empty,
                 'cpu_type' => $empty,
                 'cpu' => $empty,
@@ -162,12 +166,27 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 }
             }
 
+            // Object storage is only available on apps. Stored in MiB on the
+            // wire; displayed to users in GB.
+            if (!$service instanceof WebApp) {
+                $row['object_storage'] = $notApplicable;
+            } elseif (isset($properties['resources']['disk']['object'])) {
+                $row['object_storage'] = ResourcesUtil::formatObjectStorageGB($properties['resources']['disk']['object']);
+                if ($properties['resources']['disk']['object'] > 0) {
+                    $hasObjectStorage = true;
+                }
+            }
+
             $row['instance_count'] = isset($properties['instance_count']) ? $this->propertyFormatter->format($properties['instance_count'], 'instance_count') : '1';
 
             $rows[] = $row;
         }
 
-        $this->table->render($rows, $this->tableHeader, $this->defaultColumns);
+        $defaultColumns = $this->defaultColumns;
+        if (!$hasObjectStorage) {
+            $defaultColumns = array_values(array_diff($defaultColumns, ['object_storage']));
+        }
+        $this->table->render($rows, $this->tableHeader, $defaultColumns);
 
         if (!$this->table->formatIsMachineReadable()) {
             if ($hasAutoscalingIndicator) {
diff --git a/legacy/src/Command/Resources/ResourcesSetCommand.php b/legacy/src/Command/Resources/ResourcesSetCommand.php
index 6d76c659..b618b624 100644
--- a/legacy/src/Command/Resources/ResourcesSetCommand.php
+++ b/legacy/src/Command/Resources/ResourcesSetCommand.php
@@ -60,6 +60,14 @@ protected function configure(): void
                 . "\nItems are in the format <info>name:value</info> as above."
                 . "\nA value of 'default' will use the default size, and 'min' or 'minimum' will use the minimum.",
             )
+            ->addOption(
+                'object-storage',
+                null,
+                InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
+                'Set the object storage size (in GB) of apps.'
+                . "\nItems are in the format <info>name:value</info> as above."
+                . "\nOnly applicable to apps; a value of 0 disables the bucket.",
+            )
             ->addOption('force', 'f', InputOption::VALUE_NONE, 'Try to run the update, even if it might exceed your limits')
             ->addOption('dry-run', null, InputOption::VALUE_NONE, 'Show the changes that would be made, without changing anything');
 
@@ -88,6 +96,7 @@ protected function configure(): void
         $this->addExample('Set profile sizes for two apps and a service', '--size frontend:0.1,backend:.25,database:1');
         $this->addExample('Give the "backend" app 3 instances', '--count backend:3');
         $this->addExample('Give 512 MB disk to the "backend" app and 2 GB to the "database" service', '--disk backend:512,database:2048');
+        $this->addExample('Give 512 GB of object storage to the "backend" app', '--object-storage backend:512');
         $this->addExample('Set the same profile size for the "backend" and "frontend" apps using a wildcard', '--size ' . OsUtil::escapeShellArg('*end:0.1'));
         $this->addExample('Set the same instance count for all apps using a wildcard', '--count ' . OsUtil::escapeShellArg('*:3'));
     }
@@ -143,6 +152,10 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         // Validate the --disk option.
         [$givenDiskSizes, $diskErrored] = $this->parseSetting($input, 'disk', $services, fn($v, $serviceName, $service) => $this->validateDiskSize($v, $serviceName, $service));
         $errored = $errored || $diskErrored;
+
+        // Validate the --object-storage option.
+        [$givenObjectStorage, $objectStorageErrored] = $this->parseSetting($input, 'object-storage', $services, fn($v, $serviceName, $service) => $this->validateObjectStorage($v, $serviceName, $service));
+        $errored = $errored || $objectStorageErrored;
         if ($errored) {
             return 1;
         }
@@ -171,7 +184,8 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $showCompleteForm = $input->isInteractive()
             && $input->getOption('size') === []
             && $input->getOption('count') === []
-            && $input->getOption('disk') === [];
+            && $input->getOption('disk') === []
+            && $input->getOption('object-storage') === [];
 
         $updates = [];
         $current = [];
@@ -304,6 +318,14 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 }
             }
 
+            // Set the object storage size (apps only).
+            if ($service instanceof WebApp && isset($givenObjectStorage[$name])) {
+                $currentObject = $properties['resources']['disk']['object'] ?? null;
+                if ($givenObjectStorage[$name] !== $currentObject) {
+                    $updates[$group][$name]['resources']['disk']['object'] = $givenObjectStorage[$name];
+                }
+            }
+
             if ($headerShown) {
                 $this->stdErr->writeln('');
             }
@@ -455,6 +477,15 @@ private function summarizeChangesPerService(string $name, WebApp|Worker|Service
                 ' MB',
             ));
         }
+        if (isset($updates['resources']['disk']['object'])) {
+            $previousMib = $properties['resources']['disk']['object'] ?? null;
+            $newMib = $updates['resources']['disk']['object'];
+            $this->stdErr->writeln('    Object storage: ' . $this->resourcesUtil->formatChange(
+                $previousMib === null ? null : ResourcesUtil::formatObjectStorageGB($previousMib),
+                ResourcesUtil::formatObjectStorageGB($newMib),
+                ' GB',
+            ));
+        }
     }
 
     /**
@@ -553,6 +584,31 @@ protected function validateDiskSize(string $value, string $serviceName, WebApp|W
         return $size;
     }
 
+    /**
+     * Validates a given object storage size, returning the value in MiB.
+     *
+     * @throws InvalidArgumentException
+     */
+    protected function validateObjectStorage(string $value, string $serviceName, WebApp|Worker|Service $service): int
+    {
+        if (!$service instanceof WebApp) {
+            throw new InvalidArgumentException(sprintf(
+                'Object storage is only available on apps; <error>%s</error> is a %s.',
+                $serviceName,
+                $this->typeName($service),
+            ));
+        }
+        $gb = (int) $value;
+        if ($gb != $value || $value < 0) {
+            throw new InvalidArgumentException(sprintf(
+                'Invalid object storage size <error>%s</error>: it must be a non-negative integer in GB.',
+                $value,
+            ));
+        }
+        // The API stores object storage in MiB. 1 GB is treated as 1024 MiB.
+        return $gb * 1024;
+    }
+
     /**
      * Validates a given profile size.
      *
diff --git a/legacy/src/Service/ResourcesUtil.php b/legacy/src/Service/ResourcesUtil.php
index 62c38968..71b49771 100644
--- a/legacy/src/Service/ResourcesUtil.php
+++ b/legacy/src/Service/ResourcesUtil.php
@@ -225,6 +225,21 @@ public function formatCPU(int|float|string $unformatted): string
         return sprintf('%.1f', $unformatted);
     }
 
+    /**
+     * Formats a MiB value as a GB string for object storage display.
+     *
+     * Object storage is in MiB on the wire; the CLI exposes it to users in GB
+     * (where 1 GB is treated as 1024 MiB).
+     */
+    public static function formatObjectStorageGB(int|float $mib): string
+    {
+        $gb = $mib / 1024;
+        if ($gb == (int) $gb) {
+            return (string) (int) $gb;
+        }
+        return rtrim(rtrim(sprintf('%.2f', $gb), '0'), '.');
+    }
+
     /**
      * Adds a --resources-init option to commands that support it.
      *
diff --git a/legacy/tests/Service/ResourcesUtilTest.php b/legacy/tests/Service/ResourcesUtilTest.php
new file mode 100644
index 00000000..f84ecc0e
--- /dev/null
+++ b/legacy/tests/Service/ResourcesUtilTest.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Platformsh\Cli\Tests\Service;
+
+use PHPUnit\Framework\TestCase;
+use Platformsh\Cli\Service\ResourcesUtil;
+
+class ResourcesUtilTest extends TestCase
+{
+    public function testFormatObjectStorageGB(): void
+    {
+        $cases = [
+            // [mib, expected_gb_string, description]
+            [0, '0', 'zero'],
+            [1024, '1', '1 GB exact'],
+            [524288, '512', '512 GB exact'],
+            [10485760, '10240', '10 TiB exact'],
+            [1536, '1.5', '1.5 GB exact'],
+            [1280, '1.25', '1.25 GB exact'],
+            [1500, '1.46', 'fractional rounds to 2 decimals'],
+            [100, '0.1', 'sub-GB value rounds and trims'],
+            [1024.0, '1', 'float input, whole GB'],
+            [1536.0, '1.5', 'float input, half GB'],
+        ];
+        foreach ($cases as $key => $case) {
+            [$mib, $expected, $description] = $case;
+            $this->assertSame(
+                $expected,
+                ResourcesUtil::formatObjectStorageGB($mib),
+                "case $key: $description",
+            );
+        }
+    }
+}