From 5615d1ef0cb3047723d2a45ebc2739412d35d985 Mon Sep 17 00:00:00 2001
From: Jethary Rader <66035149+jerader@users.noreply.github.com>
Date: Fri, 26 Jul 2024 12:06:56 -0400
Subject: [PATCH] fix(protocol-designer): fix well depth for blowout field
 (#15809)

closes RESC-309
---
 .../StepEditForm/fields/BlowoutZOffsetField.tsx          | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/protocol-designer/src/components/StepEditForm/fields/BlowoutZOffsetField.tsx b/protocol-designer/src/components/StepEditForm/fields/BlowoutZOffsetField.tsx
index 631876ef442..453e86cee26 100644
--- a/protocol-designer/src/components/StepEditForm/fields/BlowoutZOffsetField.tsx
+++ b/protocol-designer/src/components/StepEditForm/fields/BlowoutZOffsetField.tsx
@@ -4,6 +4,7 @@ import {
   DEST_WELL_BLOWOUT_DESTINATION,
   SOURCE_WELL_BLOWOUT_DESTINATION,
 } from '@opentrons/step-generation'
+import { getWellDepth } from '@opentrons/shared-data'
 import {
   COLORS,
   Flex,
@@ -45,9 +46,9 @@ export function BlowoutZOffsetField(
     labwareId = destLabwareId
   }
 
-  const labwareZDimension =
-    labwareId != null
-      ? labwareEntities[String(labwareId)]?.def.dimensions.zDimension
+  const labwareWellDepth =
+    labwareId != null && labwareEntities[String(labwareId)]?.def != null
+      ? getWellDepth(labwareEntities[String(labwareId)].def, 'A1')
       : 0
 
   return (
@@ -61,7 +62,7 @@ export function BlowoutZOffsetField(
           name={name}
           zValue={Number(value)}
           updateValue={updateValue}
-          wellDepthMm={labwareZDimension}
+          wellDepthMm={labwareWellDepth}
         />
       ) : null}
       <Flex