A: It looks like you can cut all 3 sides. But I?m just planning my purchase now.
A: I think you are looking for sink front tip out trays. Check out these part #: 6572-11-11-52 or 6572-14-11-52. One is 11" and 14". One of these (2) sizes should work.
A: I believe you are looking for part #: 6572-11-11-52 or 6572-14-11-52.
A: I suggest buying the 4WCT-1SH and 4WCT-3SH. Together these will give you the 27.5" you need.
A: 27"W is a very large drawer. Your best bet would be to purchase 2 of our smaller version (4WCT-1SH) of this product which is 14 5/8" wide and trim each using a table saw to get down to 13.5". You would want to make sure to trim a little off of each side and to use a wood glue to combine them before inserting.