Edge Finish Carpet

I would say glue hot glue or a marine glue.
Edge finish carpet. Place the cloth along the edge on top of the pile so the edge of the pile and the edge of the cloth are together. Just place a bead along the edge where it is fraying. The stuff mentioned above is for fabric the fray check and stop thread i don t think it will hold up if it gets wet. This is done by a carpet binding machine.
With this method you are going to need to use your knee kicker in order to make sure that the edge of the carpet has a good stretch on it. Place your carpet face down on your work surface. Step 3 measure the width of the doorway using a tape measure and then cut a carpet tack strip to the same width using tin snips. Pull the edge of the carpet back 1 to 2 feet so you can see the underlying subfloor which may be concrete or plywood.
Cut any protruding edges straight or to the shape you want your rug. Vacuum the subfloor to remove all dirt and grit. Binding the edge of a carpet involves wrapping a strip of fabric which is generally made from either polyester or cotton around the edge of the carpet and stitching it in place. Check straightness of the remnant edge with the measuring tape and marker marking on the back side of the rug any areas that need to be trimmed with scissors.
One of the methods that you can use to finish off the edge of a piece of carpet is to simply attach it to a tack strip. This is going to be the most basic method and many installers like to do it this way. If you are using the staple gun plate idea you would put your metal plate under the carpet and staple down the edge. Set your carpet down pile up.