“Starting Monday, March 16th, new orders for MDF doors going into sliding door applications will require LVL stiles in order to retain warranty coverage for warp. It is important to note that many TruStile customers continue to purchase the Top Wedge option for sliding door applications.
As the image below illustrates, LVL stiles can be purchased in place of the Top Wedge to provide appropriate screw holding on the top of the door for most sliding door hardware. While the LVL stile option is slightly more expensive than the Top Wedge, it provides the dual benefits of superior screw holding for sliding door hardware and the guarantee that the doors will not warp, regardless as to how it is handled on the job site.” Learn more