Fiberglass Tonneau Covers
For a long time, fiberglass bed covers were the leader in tonneau covers. There was a reason for that: They are secure and are usually custom painted to match your truck. They are, for the most part, very weather-tite. Many fiberglass manufacturers opt to style the lid so it blends in styling on the truck itself.
On the other hand, they are usually fairly heavy, requiring a fair amount of effort to remove if you wish to haul larger items. The paint finish is rarely a “Class A” finish. Still, they look great and if you don’t plan on removing the cover often, fiberglass covers are a great buy. Expect them to weigh up to 150 lbs. Prices vary, but you can get one for anywhere from $1000 to $1700.