Review on DGSL Garage Door Seals Bottom Rubber Weather Stripping Kit - Universal Weatherproof Threshold Buffering Sealing Rubber, 5/16 Inch T Ends, 3 3/4 Inch Width, 20 Ft, Black by Bob Maldonado

I read reviews before buying and after buying and installing I want to give my opinion. First, the length listed is accurate. So if you need a 16 foot gasket, order the 16 foot gasket. I read many reviews saying the length was inaccurate and you need to order the next size up. I ended up having just over 4 extra feet (and additional expense) for my door. Next, you cannot lengthen it by stretching it. Yes, it's expanding a little, but it won't stay that way forever. Finally, hanging it next to the door for installation was good advice - it's very heavy. I left it rolled up and hung it on a bungee cord near where I inserted it into the bottom of the door, squeezed out some sealant and pressed it into the track. I would recommend getting help pulling/pushing the seal - someone halfway to the door. In fact, this is not a job for one person. You may also need to adjust the door to avoid damaging the seal. If your old seal was flat like mine was, I had to adjust the door closing so the seal wasn't flat but still provided a good seal at the bottom of the door.