diff --git a/app/controllers/collections/columns_controller.rb b/app/controllers/collections/columns_controller.rb
index f69a8b80b..8fe6a796b 100644
--- a/app/controllers/collections/columns_controller.rb
+++ b/app/controllers/collections/columns_controller.rb
@@ -1,7 +1,12 @@
 class Collections::ColumnsController < ApplicationController
   include CollectionScoped
 
-  before_action :set_column
+  before_action :set_column, only: :show
+
+  def create
+    @column = @collection.columns.create!(column_params)
+    render turbo_stream: turbo_stream.before("closed-cards", partial: "collections/show/column", locals: { column: @column })
+  end
 
   def show
     set_page_and_extract_portion_from @column.cards.active.reverse_chronologically
@@ -11,4 +16,8 @@ class Collections::ColumnsController < ApplicationController
     def set_column
       @column = @collection.columns.find(params[:id])
     end
+
+    def column_params
+      params.require(:column).permit(:name)
+    end
 end
diff --git a/app/models/column.rb b/app/models/column.rb
index 7191d333b..f62a728ce 100644
--- a/app/models/column.rb
+++ b/app/models/column.rb
@@ -4,4 +4,11 @@ class Column < ApplicationRecord
 
   validates :name, presence: true
   validates :color, presence: true
-end
\ No newline at end of file
+
+  before_validation :set_default_color
+
+  private
+    def set_default_color
+      self.color ||= Card::DEFAULT_COLOR
+    end
+end
diff --git a/app/views/collections/show/_columns.html.erb b/app/views/collections/show/_columns.html.erb
index 71e8b4e43..267a7a5c0 100644
--- a/app/views/collections/show/_columns.html.erb
+++ b/app/views/collections/show/_columns.html.erb
@@ -1,20 +1,17 @@
-  <%= turbo_frame_tag :cards_container do %>
-    <div class="card-columns" data-controller="collapsible-columns" data-collapsible-columns-collapsed-class="is-collapsed">
+<%= turbo_frame_tag :cards_container do %>
+  <div class="card-columns" data-controller="collapsible-columns" data-collapsible-columns-collapsed-class="is-collapsed">
 
-      <div class="card-columns__left">
-        <%= render "collections/show/not_now", collection: collection %>
-      </div>
-
-      <%= render "collections/show/stream", collection: collection, page: page %>
-
-      <div class="card-columns__right">
-        <%= render partial: "collections/show/column", collection: collection.columns, cached: true %>
-        <%= render "collections/show/closed", collection: collection %>
-
-        <button class="btn btn--circle txt-x-small borderless">
-          <%= icon_tag "menu-dots-horizontal" %>
-          <span class="for-screen-reader">Add a new column, etc.</span>
-        </button>
-      </div>
+    <div class="card-columns__left">
+      <%= render "collections/show/not_now", collection: collection %>
     </div>
-  <% end %>
+
+    <%= render "collections/show/stream", collection: collection, page: page %>
+
+    <div class="card-columns__right">
+      <%= render partial: "collections/show/column", collection: collection.columns, cached: true %>
+      <%= render "collections/show/closed", collection: collection %>
+
+      <%= render  "collections/show/columns_menu", collection: collection %>
+    </div>
+  </div>
+<% end %>
diff --git a/app/views/collections/show/_columns_menu.html.erb b/app/views/collections/show/_columns_menu.html.erb
new file mode 100644
index 000000000..44f33b0ae
--- /dev/null
+++ b/app/views/collections/show/_columns_menu.html.erb
@@ -0,0 +1,11 @@
+<div class="position-relative" data-controller="dialog" data-action="keydown.esc->dialog#close click@document->dialog#closeOnClickOutside">
+  <button class="btn btn--circle txt-x-small borderless" data-action="click->dialog#open:stop" aria-label="Add a new column, etc.">
+    <%= icon_tag "add", class: "translucent", "aria-hidden": true %>
+  </button>
+  <dialog class="popup panel flex-column gap fill-white shadow txt-small margin-block-double" data-dialog-target="dialog">
+    <%= form_with model: [ collection, Column.new ], data: { action: "turbo:submit-end->dialog#close" } do |form| %>
+      <%= form.text_field :name, class: "input", placeholder: "Column name", required: true %>
+      <%= form.submit "Add a column", class: "btn btn--link" %>
+    <% end %>
+  </dialog>
+</div>
diff --git a/test/models/column_test.rb b/test/models/column_test.rb
new file mode 100644
index 000000000..b65ff2037
--- /dev/null
+++ b/test/models/column_test.rb
@@ -0,0 +1,9 @@
+require "test_helper"
+
+class ColumnTest < ActiveSupport::TestCase
+  test "creates column with default color when color not provided" do
+    column = collections(:writebook).columns.create!(name: "New Column")
+
+    assert_equal Card::DEFAULT_COLOR, column.color
+  end
+end