This is a joint made by creating two 45° angles, which will then create a 90° corner. This method is commonly used on Real Wood products such as tables, chairs and windows etc. as the joint creates a more of less perfect attempt to line up the staves of a wooden worktop in a diagonal formation. This is a very sturdy joint but not one we would recommend if it were to go over a dishwasher or washing machine and too much movement (especially shrinkage, which is common on all solid surface products as they react to weather) will show immediately. Alternatively we would recommend a butt joint as explained above.
PLEASE NOTE: This option is only available for Real Wood worktops. This product consists of three key holes and FOC jointing bolts.