diff --git a/lua/dressing/config.lua b/lua/dressing/config.lua
index 99f936a..0cb3b8a 100644
--- a/lua/dressing/config.lua
+++ b/lua/dressing/config.lua
@@ -79,8 +79,17 @@ local default_config = {
       border = {
         style = "rounded",
       },
+      buf_options = {
+        swapfile = false,
+        filetype = "DressingSelect",
+      },
+      win_options = {
+        winblend = 10,
+      },
       max_width = 80,
       max_height = 40,
+      min_width = 40,
+      min_height = 10,
     },
 
     -- Options for built-in selector
diff --git a/lua/dressing/select/nui.lua b/lua/dressing/select/nui.lua
index 0168537..6490392 100644
--- a/lua/dressing/select/nui.lua
+++ b/lua/dressing/select/nui.lua
@@ -8,8 +8,20 @@ M.select = function(config, items, opts, on_choice)
   local Menu = require("nui.menu")
   local event = require("nui.utils.autocmd").event
   local lines = {}
+  local line_width = 1
   for i, item in ipairs(items) do
-    table.insert(lines, Menu.item(opts.format_item(item), { value = item, idx = i }))
+    local line = opts.format_item(item)
+    line_width = math.max(line_width, vim.api.nvim_strwidth(line))
+    table.insert(lines, Menu.item(item, { value = item, idx = i }))
+  end
+
+  if not config.size then
+    line_width = math.max(line_width, config.min_width)
+    local height = math.max(#lines, config.min_height)
+    config.size = {
+      width = line_width,
+      height = height,
+    }
   end
 
   local border = vim.deepcopy(config.border)
@@ -22,12 +34,8 @@ M.select = function(config, items, opts, on_choice)
     size = config.size,
     relative = config.relative,
     border = border,
-    buf_options = {
-      swapfile = false,
-    },
-    win_options = {
-      winblend = 10,
-    },
+    buf_options = config.buf_options,
+    win_options = config.win_options,
     enter = true,
   }, {
     lines = lines,