diff --git a/crates/ui-egui/src/lib.rs b/crates/ui-egui/src/lib.rs
index 4c1ed337..ef55faf8 100644
--- a/crates/ui-egui/src/lib.rs
+++ b/crates/ui-egui/src/lib.rs
@@ -187,6 +187,8 @@ mod shortcut_keys_tests;
 #[cfg(test)]
 mod shortcuts_tests;
 #[cfg(test)]
+mod stroke_row_tests;
+#[cfg(test)]
 mod style_folder_rename_tests;
 #[cfg(test)]
 mod text_enter_tests;
diff --git a/crates/ui-egui/src/panels/right/paints.rs b/crates/ui-egui/src/panels/right/paints.rs
index b947e296..182116fe 100644
--- a/crates/ui-egui/src/panels/right/paints.rs
+++ b/crates/ui-egui/src/panels/right/paints.rs
@@ -348,7 +348,12 @@ pub(super) fn paints(app: &mut FigApp, ui: &mut Ui, doc: &Document, sel: &[NodeI
     if !fills && !empty {
         let weight = common(doc, sel, |n| n.stroke.weight);
         let align = common(doc, sel, |n| n.stroke.align);
-        let half = (ui.available_width() - PAD * 2.0 - 8.0) / 2.0;
+        let sided = sel.iter().all(|i| doc.node(*i).is_some_and(|n| n.kind.is_frame_like() || matches!(n.kind, NodeKind::Rectangle)));
+        // The position and the weight share what the buttons (Advanced, and per-side strokes for
+        // layers with sides) leave: halving the whole row left the weight too narrow for its value
+        // beside the variable button and ran the row past the panel's edge (#1452).
+        let buttons = if sided { 2.0 } else { 1.0 } * (24.0 + 8.0);
+        let field_w = ((ui.available_width() - PAD * 2.0 - 8.0 - buttons) / 2.0).max(40.0);
         row(ui, 32.0, |ui| {
             let resp = widgets::dropdown(
                 ui,
@@ -358,7 +363,7 @@ pub(super) fn paints(app: &mut FigApp, ui: &mut Ui, doc: &Document, sel: &[NodeI
                     Some(StrokeAlign::Outside) => tr("Outside"),
                     None => tr("Mixed"),
                 },
-                half,
+                field_w,
                 None,
             );
             menu_popup(&resp).show(|ui| {
@@ -369,8 +374,6 @@ pub(super) fn paints(app: &mut FigApp, ui: &mut Ui, doc: &Document, sel: &[NodeI
                     }
                 }
             });
-            let sided = sel.iter().all(|i| doc.node(*i).is_some_and(|n| n.kind.is_frame_like() || matches!(n.kind, NodeKind::Rectangle)));
-            let weight_w = half - if sided { 60.0 } else { 32.0 };
             let e = crate::variable_ui::number_field_mixed(
                 app,
                 ui,
@@ -380,7 +383,7 @@ pub(super) fn paints(app: &mut FigApp, ui: &mut Ui, doc: &Document, sel: &[NodeI
                 Lead::Icon(Icon::Menu, tr("Stroke weight")),
                 weight,
                 "",
-                weight_w,
+                field_w,
             );
             app.field_of(&ids, "strokeWeight", e, |n| n.stroke.weight, |v| json!(v.max(0.0)));
             if sided {
diff --git a/crates/ui-egui/src/stroke_row_tests.rs b/crates/ui-egui/src/stroke_row_tests.rs
new file mode 100644
index 00000000..18ed7a00
--- /dev/null
+++ b/crates/ui-egui/src/stroke_row_tests.rs
@@ -0,0 +1,82 @@
+//! The stroke's position / weight row in the Design panel, driven headless at the panel's default
+//! width: the weight field keeps room for its value beside the variable button, whose click opens
+//! the variable picker, and the row's buttons stay inside the panel (#1452: the weight field was
+//! so narrow that the variable button sat on its icon and hid the value).
+
+use egui::accesskit::Role;
+use egui::{Id, Pos2, Rect};
+use figcraft_engine::Session;
+use serde_json::json;
+
+use crate::layers_drag_tests::Ui;
+
+/// A stroked rectangle (`rect`) or ellipse, selected.
+fn scene(kind: &str) -> Ui {
+    let mut s = Session::new();
+    let made = s.execute(&format!("shape.{kind}"), &json!({"x": 0, "y": 0, "width": 200, "height": 120})).unwrap();
+    let id = made["id"].as_u64().unwrap();
+    s.execute("stroke.add", &json!({"ids": [id]})).unwrap();
+    s.execute("select.set", &json!({"ids": [id]})).unwrap();
+    let mut u = Ui::new(s);
+    u.frame(vec![]);
+    u
+}
+
+/// The area of part `part` ("lead", "field" or "bind") of the stroke weight field.
+fn weight(u: &Ui, part: &str) -> Rect {
+    u.ctx.read_response(Id::unique("stroke_w").with(part)).unwrap_or_else(|| panic!("the weight field's {part} shows")).rect
+}
+
+/// The bounds of the button named `label`, found in the AccessKit tree.
+fn named_button(u: &mut Ui, label: &str) -> Rect {
+    u.ctx.enable_accesskit();
+    u.frame(vec![]);
+    let out = u.frame_output(vec![]);
+    let nodes = out.platform_output.accesskit_update.expect("an AccessKit update").nodes;
+    let n = nodes.iter().map(|(_, n)| n).find(|n| n.role() == Role::Button && n.label() == Some(label)).expect(label);
+    let b = n.bounds().expect("bounds");
+    Rect::from_min_max(Pos2::new(b.x0 as f32, b.y0 as f32), Pos2::new(b.x1 as f32, b.y1 as f32))
+}
+
+/// The variable button clears the weight's icon and leaves the value room for a few digits, for
+/// layers with per-side strokes (one more button in the row) and without.
+#[test]
+fn weight_field_keeps_its_value_beside_the_variable_button() {
+    for kind in ["rectangle", "ellipse"] {
+        let u = scene(kind);
+        let (lead, field, bind) = (weight(&u, "lead"), weight(&u, "field"), weight(&u, "bind"));
+        assert!(bind.min.x >= lead.max.x + 4.0, "{kind}: the variable button {bind:?} sits on the icon {lead:?}");
+        assert!(bind.min.x - field.min.x >= 16.0, "{kind}: no room for the value left of the variable button in {field:?} ({bind:?})");
+    }
+}
+
+/// The row's last button (Advanced) stays inside the panel's padding, in line with the panel's
+/// icon column, also with the per-side button beside the weight.
+#[test]
+fn stroke_row_buttons_stay_inside_the_panel() {
+    for kind in ["rectangle", "ellipse"] {
+        let mut u = scene(kind);
+        let advanced = named_button(&mut u, "Advanced stroke");
+        let panel_right = u.ctx.content_rect().max.x - crate::widgets::PAD;
+        assert!(advanced.max.x <= panel_right + 0.5, "{kind}: Advanced at {advanced:?} runs past the panel's edge {panel_right}");
+        if kind == "rectangle" {
+            let sides = named_button(&mut u, "Individual strokes");
+            assert!(sides.min.x >= weight(&u, "field").max.x, "{kind}: the per-side button {sides:?} overlaps the weight");
+            assert!(sides.max.x <= advanced.min.x, "{kind}: the per-side button {sides:?} overlaps Advanced {advanced:?}");
+        }
+    }
+}
+
+/// A click on the variable button opens the variable picker for the weight.
+#[test]
+fn variable_button_opens_the_picker() {
+    let mut u = scene("rectangle");
+    let field = weight(&u, "field");
+    let at = weight(&u, "bind").center();
+    // The button shows while the pointer is over the field.
+    u.frame(vec![egui::Event::PointerMoved(field.center())]);
+    u.button(at, true);
+    u.button(at, false);
+    u.frame(vec![]);
+    assert!(crate::variable_ui::picker_open(&u.ctx), "the variable picker opened");
+}