diff --git a/woocommerce-measurement-price-calculator/add-min-max-input-values.php b/woocommerce-measurement-price-calculator/add-min-max-input-values.php
new file mode 100644
index 0000000..b87a3d5
--- /dev/null
+++ b/woocommerce-measurement-price-calculator/add-min-max-input-values.php
@@ -0,0 +1,40 @@
+<?php // only copy this line if needed
+
+/**
+ * Changes MPC width / length inputs to number type inputs
+ *   then adds min / max values accepted for each
+ *
+ * requires HTML5 support
+ */
+function sv_wc_measurement_price_calculator_input_min_max() {
+
+	// bail unless we're on a product page and MPC is active
+	if ( ! ( is_product() && class_exists( 'WC_Price_Calculator_Product' ) ) ) {
+		return;
+	}
+
+	global $product;
+	
+	// bail unless the calculator is enabled for this product, this is also why we hook into the footer scripts
+	// since this isn't available immediately at page load
+	if ( ! WC_Price_Calculator_Product::calculator_enabled( $product ) ) {
+		return;
+	}
+
+	wc_enqueue_js("
+		$('#length_needed').attr({ type: 'number', min: '.1', max: '24', step: '.1' }).addClass('input-text');
+		$('#width_needed').attr({ type: 'number', min: '.1', max: '5', step: '.1' }).addClass('input-text');
+	");
+
+}
+add_action( 'wp_print_footer_scripts', 'sv_wc_measurement_price_calculator_input_min_max' );
+
+
+/**------------------------------------------------------------
+ Note: if you run into "Error: type property can't be changed", 
+ then you can also use the jQuery "clone" function, 
+ then destroy the text field once it's replaced.
+ 
+ Example:
+ $('#length_needed').clone().attr({ type: 'number', min: '.1', max: '24', step: '.1' }).insertAfter('#length_needed').prev().remove();
+------------------------------------------------------------**/
\ No newline at end of file