I have a 24' wide door and need to take a 1/4" off, can I cut this little amount off using this guide?

Hello, Yes, the Rip-Cut should be able to remove a 1/4 of an inch from one side of a 24" wide door providing there are no obstructions on the edge of the door that the Rip-Cut's edge guide must slide against. You should be able to extend the sled and saw out to 23-3/4 inches to remove a 1/4 inch from the opposite side of the door that the edge guide is riding against. Thanks!