Just a word of warning, its pretty obvious but just in case, you need to down-load the installation instructions, I printed them on standard A4 paper and the mounting templates are not to scale.....ensure you de-select "fit to paper size" on your printer options as the template is in US paper sizing and it will not be to scale otherwise....oddly enough the template that came with the goods "1 inch scale checker' is not to scale! But the drawing is....