diff --git a/src/core/CL/kernels/CLBox3x3Kernel.cpp b/src/core/CL/kernels/CLBox3x3Kernel.cpp
index e113d30..0299f62 100644
--- a/src/core/CL/kernels/CLBox3x3Kernel.cpp
+++ b/src/core/CL/kernels/CLBox3x3Kernel.cpp
@@ -37,7 +37,7 @@
 
 BorderSize CLBox3x3Kernel::border_size() const
 {
-    return 1;
+    return BorderSize(1);
 }
 
 void CLBox3x3Kernel::configure(const ICLTensor *input, ICLTensor *output, bool border_undefined)
diff --git a/src/runtime/CL/functions/CLBox3x3.cpp b/src/runtime/CL/functions/CLBox3x3.cpp
index 8de6807..20d5dae 100644
--- a/src/runtime/CL/functions/CLBox3x3.cpp
+++ b/src/runtime/CL/functions/CLBox3x3.cpp
@@ -36,5 +36,5 @@
     auto k = arm_compute::cpp14::make_unique<CLBox3x3Kernel>();
     k->configure(input, output, border_mode == BorderMode::UNDEFINED);
     _kernel = std::move(k);
-    _border_handler.configure(input, 1, border_mode, PixelValue(constant_border_value));
+    _border_handler.configure(input, BorderSize(1), border_mode, PixelValue(constant_border_value));
 }
diff --git a/src/runtime/CL/functions/CLDerivative.cpp b/src/runtime/CL/functions/CLDerivative.cpp
index c51cb4c..9357de5 100644
--- a/src/runtime/CL/functions/CLDerivative.cpp
+++ b/src/runtime/CL/functions/CLDerivative.cpp
@@ -36,5 +36,5 @@
     auto k = arm_compute::cpp14::make_unique<CLDerivativeKernel>();
     k->configure(input, output_x, output_y, border_mode == BorderMode::UNDEFINED);
     _kernel = std::move(k);
-    _border_handler.configure(input, 1, border_mode, PixelValue(constant_border_value));
+    _border_handler.configure(input, BorderSize(1), border_mode, PixelValue(constant_border_value));
 }
diff --git a/src/runtime/CL/functions/CLDilate.cpp b/src/runtime/CL/functions/CLDilate.cpp
index 345f477..0a4abe3 100644
--- a/src/runtime/CL/functions/CLDilate.cpp
+++ b/src/runtime/CL/functions/CLDilate.cpp
@@ -36,5 +36,5 @@
     auto k = arm_compute::cpp14::make_unique<CLDilateKernel>();
     k->configure(input, output, border_mode == BorderMode::UNDEFINED);
     _kernel = std::move(k);
-    _border_handler.configure(input, 1, border_mode, PixelValue(constant_border_value));
+    _border_handler.configure(input, BorderSize(1), border_mode, PixelValue(constant_border_value));
 }
diff --git a/src/runtime/CL/functions/CLErode.cpp b/src/runtime/CL/functions/CLErode.cpp
index b4c50e4..c41371c 100644
--- a/src/runtime/CL/functions/CLErode.cpp
+++ b/src/runtime/CL/functions/CLErode.cpp
@@ -36,5 +36,5 @@
     auto k = arm_compute::cpp14::make_unique<CLErodeKernel>();
     k->configure(input, output, border_mode == BorderMode::UNDEFINED);
     _kernel = std::move(k);
-    _border_handler.configure(input, 1, border_mode, PixelValue(constant_border_value));
+    _border_handler.configure(input, BorderSize(1), border_mode, PixelValue(constant_border_value));
 }
diff --git a/src/runtime/CL/functions/CLFillBorder.cpp b/src/runtime/CL/functions/CLFillBorder.cpp
index 9e59b77..172f09d 100644
--- a/src/runtime/CL/functions/CLFillBorder.cpp
+++ b/src/runtime/CL/functions/CLFillBorder.cpp
@@ -33,6 +33,6 @@
 void CLFillBorder::configure(ICLTensor *tensor, unsigned int border_width, BorderMode border_mode, const PixelValue &constant_border_value)
 {
     auto k = arm_compute::cpp14::make_unique<CLFillBorderKernel>();
-    k->configure(tensor, border_width, border_mode, constant_border_value);
+    k->configure(tensor, BorderSize(border_width), border_mode, constant_border_value);
     _kernel = std::move(k);
 }
diff --git a/src/runtime/CL/functions/CLHarrisCorners.cpp b/src/runtime/CL/functions/CLHarrisCorners.cpp
index 2db277f..e1c4441 100644
--- a/src/runtime/CL/functions/CLHarrisCorners.cpp
+++ b/src/runtime/CL/functions/CLHarrisCorners.cpp
@@ -100,8 +100,8 @@
     }
 
     // Configure border filling before harris score
-    _border_gx.configure(&_gx, block_size / 2, border_mode, constant_border_value);
-    _border_gy.configure(&_gy, block_size / 2, border_mode, constant_border_value);
+    _border_gx.configure(&_gx, BorderSize(block_size / 2), border_mode, constant_border_value);
+    _border_gy.configure(&_gy, BorderSize(block_size / 2), border_mode, constant_border_value);
 
     // Normalization factor
     const float norm_factor               = 1.0f / (255.0f * pow(4.0f, gradient_size / 2) * block_size);
diff --git a/src/runtime/NEON/functions/NEDerivative.cpp b/src/runtime/NEON/functions/NEDerivative.cpp
index 2887c13..c50db14 100644
--- a/src/runtime/NEON/functions/NEDerivative.cpp
+++ b/src/runtime/NEON/functions/NEDerivative.cpp
@@ -42,7 +42,7 @@
     ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr));
 
     _kernel.configure(input, output_x, output_y, border_mode == BorderMode::UNDEFINED);
-    _border_handler.configure(input, 1, border_mode, PixelValue(constant_border_value));
+    _border_handler.configure(input, BorderSize(1), border_mode, PixelValue(constant_border_value));
 }
 
 void NEDerivative::run()
diff --git a/src/runtime/NEON/functions/NEFillBorder.cpp b/src/runtime/NEON/functions/NEFillBorder.cpp
index e884f4a..44e4952 100644
--- a/src/runtime/NEON/functions/NEFillBorder.cpp
+++ b/src/runtime/NEON/functions/NEFillBorder.cpp
@@ -30,7 +30,7 @@
 
 void NEFillBorder::configure(ITensor *input, unsigned int border_width, BorderMode border_mode, const PixelValue &constant_border_value)
 {
-    _border_handler.configure(input, border_width, border_mode, constant_border_value);
+    _border_handler.configure(input, BorderSize(border_width), border_mode, constant_border_value);
 }
 
 void NEFillBorder::run()
diff --git a/src/runtime/NEON/functions/NENonMaximaSuppression3x3.cpp b/src/runtime/NEON/functions/NENonMaximaSuppression3x3.cpp
index a7b3759..e92d567 100644
--- a/src/runtime/NEON/functions/NENonMaximaSuppression3x3.cpp
+++ b/src/runtime/NEON/functions/NENonMaximaSuppression3x3.cpp
@@ -38,10 +38,10 @@
 
     if(border_mode != BorderMode::UNDEFINED)
     {
-        _border_handler.configure(input, 1, BorderMode::CONSTANT, 0);
+        _border_handler.configure(input, BorderSize(1), BorderMode::CONSTANT, 0);
     }
     else
     {
-        _border_handler.configure(input, 1, BorderMode::UNDEFINED, 0);
+        _border_handler.configure(input, BorderSize(1), BorderMode::UNDEFINED, 0);
     }
 }
diff --git a/tests/validation/Validation.cpp b/tests/validation/Validation.cpp
index 89f91c0..17dc695 100644
--- a/tests/validation/Validation.cpp
+++ b/tests/validation/Validation.cpp
@@ -393,7 +393,7 @@
     }
 }
 
-void validate(float target, float ref, float tolerance_abs_error = std::numeric_limits<float>::epsilon(), float tolerance_relative_error = 0.0001f)
+void validate(float target, float ref, float tolerance_abs_error, float tolerance_relative_error)
 {
     const bool equal = is_equal(target, ref, tolerance_abs_error, tolerance_relative_error);
 
diff --git a/tests/validation/Validation.h b/tests/validation/Validation.h
index 865d05b..2eb79dd 100644
--- a/tests/validation/Validation.h
+++ b/tests/validation/Validation.h
@@ -121,6 +121,13 @@
  * - All values should match
  */
 void validate(std::vector<unsigned int> classified_labels, std::vector<unsigned int> expected_labels);
+
+/** Validate float value.
+ *
+ * - All values should match
+ */
+void validate(float target, float ref, float tolerance_abs_error = std::numeric_limits<float>::epsilon(), float tolerance_relative_error = 0.0001f);
+
 } // namespace validation
 } // namespace test
 } // namespace arm_compute