Assembly of gliding frame and trim: Step 1: Position the gliding frame over the brackets with the tabs on the side of the frame over the notches in the bracket. Ensure that the locking tabs are in the right position. The tabs should be pointing towards the wall. Push down so that the tabs are completely down into the bracket notches (until you hear a click). Then push the frame back towards the wall, until you hear a click. Step 2: Identify which of the slide covers is left/right. The outside of the cover is the flat side and the thinner part of the "triangle shape" should be backward pointing. Attach the slide covers so that they are completely flush towards the front tabs of the gliding frame. Step 3: Assemble the shelf trim onto the front of the gliding frame. Push the screws on the back of the shelf trim through the wider part of the holes on the front of the gliding frame and then push the shelf trim to the left in order to lock it into place. Then tighten the screws.