Welcome to our updated Custom Mat site. In addition to our usual Standard Mat sizes you can now specify any Custom Size Mats you may require - a Custom window in a Standard mat, a Standard window in a Custom mat, or a full Custom/Custom. If you're unsure about anything I would encourage you to spend a moment or two checking out the comprehensive info in the Help modals as you work through each page. If you have any further queries please contact us via email or phone 0407 709 829. P.S. If you happen to find any bugs and you have the time, could you please email to let us know!?