diff --git a/components/calcValues.vue b/components/calcValues.vue
index dca5085..40a4483 100644
--- a/components/calcValues.vue
+++ b/components/calcValues.vue
@@ -87,10 +87,10 @@ const changeParametres = () => {
 
     const section_without_pillar = form_state.length - form_state.fence_length
 
-    form_state.full_sections = Math.ceil(total_without_pillar / section_without_pillar)
+    form_state.full_sections = Math.floor(total_without_pillar / section_without_pillar)
 
-    if (section_without_pillar * form_state.full_sections == form_state.full_sections) {
-        form_state.extra_section = Math.ceil(total_without_pillar % section_without_pillar)
+    if (section_without_pillar * form_state.full_sections !== form_state.full_sections) {
+        form_state.extra_section = Math.floor(total_without_pillar % section_without_pillar)
     } else {
         form_state.extra_section = 0
     }