diff --git a/basic_functions.py b/basic_functions.py
new file mode 100644
index 0000000..a6c040a
--- /dev/null
+++ b/basic_functions.py
@@ -0,0 +1,14 @@
+import os
+import glob
+import time
+
+
+def find_shp_files(root_folder):
+  shp_files = []
+  # Sort folders alphabetically
+  for foldername, _, _ in sorted(os.walk(root_folder)):
+    for filename in sorted(glob.glob(os.path.join(foldername, '*.shp'))):
+      new_file_name = filename.replace('\\', r'/')
+      shp_files.append(new_file_name)
+  return shp_files
+
diff --git a/scrub_layer_class.py b/scrub_layer_class.py
index ad7107b..5309d47 100644
--- a/scrub_layer_class.py
+++ b/scrub_layer_class.py
@@ -3,6 +3,7 @@ from qgis.core import QgsApplication, QgsField, QgsProject, \
   QgsExpressionContext, QgsExpressionContextUtils, edit
 from qgis.PyQt.QtCore import QVariant
 from qgis.analysis import QgsNativeAlgorithms
+from basic_functions import *
 import processing
 
 
@@ -74,9 +75,6 @@ class ScrubLayer:
     processing.run("native:clip", clip_layer_params)
     print(f'Clipping of {self.layer_name} is completed.')
 
-  def merge_layers(self, layers_path, mered_layer_path):
-    pass
-
   def multipart_to_singleparts(self, singleparts_layer_path):
     QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())
     params = {'INPUT': self.layer,
diff --git a/scrub_mtl_class.py b/scrub_mtl_class.py
index 347481e..39120f8 100644
--- a/scrub_mtl_class.py
+++ b/scrub_mtl_class.py
@@ -1,4 +1,5 @@
 from scrub_layer_class import *
+from basic_functions import *
 
 
 class ScrubMTL:
@@ -9,6 +10,17 @@ class ScrubMTL:
     """Can be a part of the constructor"""
     pass
 
+  @staticmethod
+  def merge_layers(layers_path, mered_layer_path):
+    merging_layers = find_shp_files(layers_path)
+    QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())
+
+    params = {'LAYERS': merging_layers,
+              'CRS': None,
+              'OUTPUT': mered_layer_path}
+
+    processing.run("native:mergevectorlayers", params)
+
   def generate_output_paths(self):
     pass