Custom sized tabletop cutting mats order info: Custom Mats can be ordered online or via phone or fax. The custom cutting of mats is a free service we offer. Please call or email us if you have questions. To order online follow these instructions: 1. Select the large cutting that is a little larger then the dimensions you want for the custom sized cutting mat. If you want the grid underlay then order the item number of the mat with grids. Example: to make a 40X90 inch cutting mat you would need to order a 4X8 foot cutting mat. 2. When you are finished shopping. Go to checkout. In checkout there is a comments field. The comments field is after the bill to information. In the comments field add the specifications you want for your custom sized cutting mat or mats. Example: Custom cut 4X8 mat to 40X90 inches. If ordering multiple custom mats include the information needed for each mat. Once again there are no additional charges for getting a custom cutting mat. These large cutting mats are perfect for cutting fabric, quilt cutting, blueprint trimming or any application where a tabletop cutting mat is needed.