diff --git a/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_both.png b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_both.png
new file mode 100644
index 0000000000..21d3b5e65c
--- /dev/null
+++ b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:77d910e390037dff701db93fc859d94eb6372c1dff73a9ddbe43bf207b4561f7
+size 5200
diff --git a/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_single.png b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_single.png
new file mode 100644
index 0000000000..c8383cb1a6
--- /dev/null
+++ b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[LTR]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cd3a40475d0beeec4241b721047fc3c12889cc12a67cb436bf321aec85479fc0
+size 4521
diff --git a/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_both.png b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_both.png
new file mode 100644
index 0000000000..4c80c8a344
--- /dev/null
+++ b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8bbdb114d652f88923881f607aeb507539793572d5065731e359bc3add227024
+size 5153
diff --git a/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_single.png b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_single.png
new file mode 100644
index 0000000000..b21cab8c71
--- /dev/null
+++ b/redwood-layout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiFlexContainerTest_testDynamicContainerSize[RTL]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:083a499212b8111350e57ae1c217cb52d14eeef8ee7bb15e1cfc8d45ed04d70c
+size 4507
diff --git a/redwood-layout-shared-test/src/commonMain/kotlin/app/cash/redwood/layout/AbstractFlexContainerTest.kt b/redwood-layout-shared-test/src/commonMain/kotlin/app/cash/redwood/layout/AbstractFlexContainerTest.kt
index 03fbd0ba1d..b37f3e15bb 100644
--- a/redwood-layout-shared-test/src/commonMain/kotlin/app/cash/redwood/layout/AbstractFlexContainerTest.kt
+++ b/redwood-layout-shared-test/src/commonMain/kotlin/app/cash/redwood/layout/AbstractFlexContainerTest.kt
@@ -437,6 +437,60 @@ abstract class AbstractFlexContainerTest<T : Any> {
     verifySnapshot(container, "BCDE")
   }
 
+  @Test
+  fun testDynamicContainerSize() {
+    val parent = flexContainer(FlexDirection.Column).apply {
+      width(Constraint.Fill)
+      height(Constraint.Fill)
+    }
+
+    parent.add(
+      flexContainer(FlexDirection.Column).apply {
+        modifier = GrowImpl(1.0)
+        width(Constraint.Fill)
+        mainAxisAlignment(MainAxisAlignment.SpaceBetween)
+        add(
+          widget(
+            "A",
+            GrowImpl(1.0).then(CrossAxisAlignmentImpl(CrossAxisAlignment.Start)),
+          ),
+        )
+        add(
+          widget(
+            "B",
+            GrowImpl(1.0).then(CrossAxisAlignmentImpl(CrossAxisAlignment.End)),
+          ),
+        )
+      },
+    )
+
+    parent.add(
+      flexContainer(FlexDirection.Column).apply {
+        modifier = GrowImpl(1.0)
+        width(Constraint.Fill)
+        mainAxisAlignment(MainAxisAlignment.SpaceBetween)
+        add(
+          widget(
+            "C",
+            GrowImpl(1.0)
+              .then(CrossAxisAlignmentImpl(CrossAxisAlignment.Start)),
+          ),
+        )
+        add(
+          widget(
+            "D",
+            GrowImpl(1.0).then(CrossAxisAlignmentImpl(CrossAxisAlignment.End)),
+          ),
+        )
+      },
+    )
+
+    verifySnapshot(parent, "both")
+
+    parent.removeAt(1)
+    verifySnapshot(parent, "single")
+  }
+
   /** We don't have assume() on kotlin.test. Tests that fail here should be skipped instead. */
   private fun assumeTrue(b: Boolean) {
     assertTrue(b)
diff --git a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.both.png b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.both.png
new file mode 100644
index 0000000000..f3397b1794
--- /dev/null
+++ b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5b9a756eddfdc540f4b3780c965f0b5d92126a41d87aaf28cbe99f41e1ff8d79
+size 71109
diff --git a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.single.png b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.single.png
new file mode 100644
index 0000000000..680502f40d
--- /dev/null
+++ b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testDynamicContainerSize.single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8d0b0322fa313b5a2e71c2a23ff1af419ca31aa0739230063ae77af0cbfdfd3e
+size 67288
diff --git a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Column.1.png b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Column.1.png
index 57d138deb1..1fe3c9f21f 100644
--- a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Column.1.png
+++ b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Column.1.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:e6b4cb2bb12a850a0509bfddfc1f9d0868289bef09d390f54e8219ba3daf0411
-size 121739
+oid sha256:946aef945b751ea83c6d91985a66db7a2062d933c4d790c1798efba7cd0a8c0e
+size 121726
diff --git a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Row.1.png b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Row.1.png
index f776587677..f5d7a3f5f3 100644
--- a/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Row.1.png
+++ b/redwood-layout-uiview/RedwoodLayoutUIViewTests/__Snapshots__/UIViewFlexContainerTestHost/testLayoutWithMarginAndDifferentAlignments_Row.1.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ac0916cf33d245907c9a2f0d1b3ff9b90787936d446044e0137b757ffead9a6f
-size 98384
+oid sha256:1955189edca693550254001e84894d03981fa33c0ee9ab950a983f23b66670ac
+size 98375
diff --git a/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/ViewFlexContainer.kt b/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/ViewFlexContainer.kt
index e16705cc3f..7e55183bec 100644
--- a/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/ViewFlexContainer.kt
+++ b/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/ViewFlexContainer.kt
@@ -168,8 +168,7 @@ internal class ViewFlexContainer(
 }
 
 private fun View.asNode(): Node {
-  val childNode = Node()
-  childNode.measureCallback = ViewMeasureCallback(this)
-  applyLayoutParams(childNode, layoutParams)
-  return childNode
+  return Node().apply {
+    measureCallback = ViewMeasureCallback(this@asNode)
+  }
 }
diff --git a/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/YogaLayout.kt b/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/YogaLayout.kt
index 2a5ff354c4..763ba74875 100644
--- a/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/YogaLayout.kt
+++ b/redwood-layout-view/src/main/kotlin/app/cash/redwood/layout/view/YogaLayout.kt
@@ -21,10 +21,6 @@ internal class YogaLayout(
 ) : ViewGroup(context) {
   val rootNode = Node()
 
-  init {
-    applyLayoutParams(rootNode, layoutParams)
-  }
-
   private fun applyLayout(node: Node, xOffset: Float, yOffset: Float) {
     val view = node.view
     if (view != null && view !== this) {
@@ -71,6 +67,11 @@ internal class YogaLayout(
   }
 
   private fun calculateLayout(widthSpec: Int, heightSpec: Int) {
+    rootNode.requestedWidth = Size.Undefined
+    rootNode.requestedMaxWidth = Size.Undefined
+    rootNode.requestedHeight = Size.Undefined
+    rootNode.requestedMaxHeight = Size.Undefined
+
     val widthSize = MeasureSpec.getSize(widthSpec).toFloat()
     when (MeasureSpec.getMode(widthSpec)) {
       MeasureSpec.EXACTLY -> rootNode.requestedWidth = widthSize
@@ -95,16 +96,3 @@ internal class YogaLayout(
 
 private val Node.view: View?
   get() = (measureCallback as ViewMeasureCallback?)?.view
-
-internal fun applyLayoutParams(node: Node, layoutParams: ViewGroup.LayoutParams?) {
-  if (layoutParams != null) {
-    val width = layoutParams.width
-    if (width >= 0) {
-      node.requestedWidth = width.toFloat()
-    }
-    val height = layoutParams.height
-    if (height >= 0) {
-      node.requestedHeight = height.toFloat()
-    }
-  }
-}
diff --git a/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_both.png b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_both.png
new file mode 100644
index 0000000000..7f3ca87b21
--- /dev/null
+++ b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:445b5e84c3d6342d15cb45bb0634775904a2112fbc592dc92ffb547c206a17b9
+size 5038
diff --git a/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_single.png b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_single.png
new file mode 100644
index 0000000000..727937df6f
--- /dev/null
+++ b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[LTR]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a7ae0f67e98cc7c27e17b4953c9fffaef91a6e085676409824213540b26b9879
+size 4431
diff --git a/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_both.png b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_both.png
new file mode 100644
index 0000000000..801ba837e2
--- /dev/null
+++ b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70326dd39f7da01639bce12bf7a7989514d7e7862e1cebca1fa57a2cb1f0901c
+size 5015
diff --git a/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_single.png b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_single.png
new file mode 100644
index 0000000000..7c6e68701b
--- /dev/null
+++ b/redwood-layout-view/src/test/snapshots/images/app.cash.redwood.layout.view_ViewFlexContainerTest_testDynamicContainerSize[RTL]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0752287d527e479efad0f29e745abeeb67eb9b6b84e8893a5bfaa02ac749c6c7
+size 4425
diff --git a/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_both.png b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_both.png
new file mode 100644
index 0000000000..784d7fc152
--- /dev/null
+++ b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57e6bb80bdab38226d042e9f722c4b0951a83ca348ef237b1b5e7e64d5770def
+size 3836
diff --git a/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_single.png b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_single.png
new file mode 100644
index 0000000000..784d7fc152
--- /dev/null
+++ b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[LTR]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57e6bb80bdab38226d042e9f722c4b0951a83ca348ef237b1b5e7e64d5770def
+size 3836
diff --git a/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_both.png b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_both.png
new file mode 100644
index 0000000000..784d7fc152
--- /dev/null
+++ b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57e6bb80bdab38226d042e9f722c4b0951a83ca348ef237b1b5e7e64d5770def
+size 3836
diff --git a/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_single.png b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_single.png
new file mode 100644
index 0000000000..784d7fc152
--- /dev/null
+++ b/redwood-lazylayout-composeui/src/test/snapshots/images/app.cash.redwood.layout.composeui_ComposeUiLazyListTest_testDynamicContainerSize[RTL]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57e6bb80bdab38226d042e9f722c4b0951a83ca348ef237b1b5e7e64d5770def
+size 3836
diff --git a/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_both.png b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_both.png
new file mode 100644
index 0000000000..ebb6a426ef
--- /dev/null
+++ b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdca08973fd5cbf55a12717a65eaa147bbfaff662cc7dca62bcae0f9d63a9859
+size 3837
diff --git a/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_single.png b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_single.png
new file mode 100644
index 0000000000..ebb6a426ef
--- /dev/null
+++ b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[LTR]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdca08973fd5cbf55a12717a65eaa147bbfaff662cc7dca62bcae0f9d63a9859
+size 3837
diff --git a/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_both.png b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_both.png
new file mode 100644
index 0000000000..ebb6a426ef
--- /dev/null
+++ b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_both.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdca08973fd5cbf55a12717a65eaa147bbfaff662cc7dca62bcae0f9d63a9859
+size 3837
diff --git a/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_single.png b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_single.png
new file mode 100644
index 0000000000..ebb6a426ef
--- /dev/null
+++ b/redwood-lazylayout-view/src/test/snapshots/images/app.cash.redwood.lazylayout.view_ViewLazyListTest_testDynamicContainerSize[RTL]_single.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdca08973fd5cbf55a12717a65eaa147bbfaff662cc7dca62bcae0f9d63a9859
+size 3837