diff --git a/EllesmereUIUnitFrames/EUI_UnitFrames_Options.lua b/EllesmereUIUnitFrames/EUI_UnitFrames_Options.lua
index 6e96f594..73c383bd 100644
--- a/EllesmereUIUnitFrames/EUI_UnitFrames_Options.lua
+++ b/EllesmereUIUnitFrames/EUI_UnitFrames_Options.lua
@@ -8262,10 +8262,15 @@ initFrame:SetScript("OnEvent", function(self)
                     db.profile.boss.showCastIcon = v
                     ReloadAndUpdate()
                   end },
-                { type="slider", text="Vertical Spacing", min=20, max=200, step=1,
+                { type="slider", text="Vertical Spacing", min=-200, max=200, step=1,
                   getValue=function() return db.profile.bossSpacing or 80 end,
                   setValue=function(v) db.profile.bossSpacing = v; ReloadAndUpdate() end })
-            return castRow, eh + ch
+            local growthRow, gh = Ww:DualRow(pp, yy - eh - ch,
+                { type="dropdown", text="Stack Direction", values={ up="Up", down="Down" }, order={ "up", "down" },
+                  getValue=function() return db.profile.boss.bossStackDirection or "down" end,
+                  setValue=function(v) db.profile.boss.bossStackDirection = v; ReloadAndUpdate() end },
+                { type="spacer" })
+            return growthRow, eh + ch + gh
         end
 
         local function bossAfterSize(Ww, pp, yy)
diff --git a/EllesmereUIUnitFrames/EllesmereUIUnitFrames.lua b/EllesmereUIUnitFrames/EllesmereUIUnitFrames.lua
index 441a84d0..25b68fe5 100644
--- a/EllesmereUIUnitFrames/EllesmereUIUnitFrames.lua
+++ b/EllesmereUIUnitFrames/EllesmereUIUnitFrames.lua
@@ -732,6 +732,7 @@ local defaults = {
             raidMarkerAlign = "left",
             raidMarkerX = 0,
             raidMarkerY = 0,
+            bossStackDirection = "down",
             healthReverseFill = false,
         },
         enabledFrames = {
@@ -5343,7 +5344,12 @@ local function ReloadFrames()
                     local prev = frames["boss" .. (bossIdx - 1)]
                     if prev then
                         frame:ClearAllPoints()
-                        frame:SetPoint("TOPLEFT", prev, "TOPLEFT", 0, -bossSpacing)
+                        local bossStackDir = db.profile.boss and db.profile.boss.bossStackDirection or "down"
+                        if bossStackDir == "up" then
+                            frame:SetPoint("BOTTOMLEFT", prev, "TOPLEFT", 0, bossSpacing)
+                        else
+                            frame:SetPoint("TOPLEFT", prev, "TOPLEFT", 0, -bossSpacing)
+                        end
                     end
                 end
             else
@@ -7843,6 +7849,7 @@ function InitializeFrames()
     local barHeight = (bossSettings.healthHeight or 34) + (bossSettings.powerHeight or 6) + (bossSettings.castbarHeight or 14)
     local gap = 10
     local spacing = db.profile.bossSpacing or (barHeight + gap)
+    local bossStackDir = db.profile.boss and db.profile.boss.bossStackDirection or "down"
     for i = 1, 5 do
         local bossUnit = "boss" .. i
         local bossFrame = oUF:Spawn(bossUnit, "EllesmereUIUnitFrames_Boss" .. i)
@@ -7860,7 +7867,11 @@ function InitializeFrames()
             local prev = frames["boss" .. (i - 1)]
             if prev then
                 bossFrame:ClearAllPoints()
-                bossFrame:SetPoint("TOPLEFT", prev, "TOPLEFT", 0, -spacing)
+                if bossStackDir == "up" then
+                    bossFrame:SetPoint("BOTTOMLEFT", prev, "TOPLEFT", 0, spacing)
+                else
+                    bossFrame:SetPoint("TOPLEFT", prev, "BOTTOMLEFT", 0, -spacing)
+                end
             end
         end
 
@@ -8550,6 +8561,7 @@ function SetupOptionsPanel()
                     if EllesmereUI._unlockActive then return end
                     if k == "boss" then
                         local spacing = db.profile.bossSpacing or 60
+                        local bossStackDir = db.profile.boss and db.profile.boss.bossStackDirection or "down"
                         -- boss1 to UIParent; chain 2..5 from the previous boss.
                         if frames.boss1 then
                             frames.boss1:ClearAllPoints()
@@ -8560,7 +8572,11 @@ function SetupOptionsPanel()
                             local prev = frames["boss" .. (i - 1)]
                             if bf and prev then
                                 bf:ClearAllPoints()
-                                bf:SetPoint("TOPLEFT", prev, "TOPLEFT", 0, -spacing)
+                                if bossStackDir == "up" then
+                                    bf:SetPoint("BOTTOMLEFT", prev, "TOPLEFT", 0, spacing)
+                                else
+                                    bf:SetPoint("TOPLEFT", prev, "BOTTOMLEFT", 0, -spacing)
+                                end
                             end
                         end
                     elseif k == "classPower" then
@@ -8605,6 +8621,7 @@ function SetupOptionsPanel()
                     end
                     if k == "boss" then
                         local spacing = db.profile.bossSpacing or 60
+                        local bossStackDir = db.profile.boss and db.profile.boss.bossStackDirection or "down"
                         if frames.boss1 then
                             local bx, by = SnapForFrame(frames.boss1, pos.x, pos.y)
                             frames.boss1:ClearAllPoints()
@@ -8615,7 +8632,11 @@ function SetupOptionsPanel()
                             local prev = frames["boss" .. (i - 1)]
                             if bf and prev then
                                 bf:ClearAllPoints()
-                                bf:SetPoint("TOPLEFT", prev, "TOPLEFT", 0, -spacing)
+                                if bossStackDir == "up" then
+                                    bf:SetPoint("BOTTOMLEFT", prev, "TOPLEFT", 0, spacing)
+                                else
+                                    bf:SetPoint("TOPLEFT", prev, "BOTTOMLEFT", 0, -spacing)
+                                end
                             end
                         end
                     elseif k == "classPower" then
diff --git a/EllesmereUI_Widgets.lua b/EllesmereUI_Widgets.lua
index a5940b4f..0fb2c174 100644
--- a/EllesmereUI_Widgets.lua
+++ b/EllesmereUI_Widgets.lua
@@ -2702,6 +2702,11 @@ function WidgetFactory:DualRow(parent, yOffset, leftCfg, rightCfg)
     local function BuildHalf(region, cfg)
         if not cfg then return end
         local t = cfg.type
+        -- Empty half-space placeholder for dual/third rows.
+        if t == "spacer" then
+            region._control = nil
+            return
+        end
         -- Label (all types have one)
         local label = MakeFont(region, 14, nil, TEXT_WHITE_R, TEXT_WHITE_G, TEXT_WHITE_B)
         PP.Point(label, "LEFT", region, "LEFT", SIDE_PAD, 0)