Truck bed covers come in many styles, and one-piece covers are the choice for owners who want a solid lid and a finished, factory-style look. If you're weighing your options, this guide explains what one-piece covers are, how they compare with other styles, and which in-stock models to look at.
Comparing one-piece covers with folding, rolling and retractable styles? Our best tonneau cover buyer's guide puts them side by side.
What Is a One-Piece Truck Bed Cover?
A one-piece truck bed cover is a single hard lid that tilts up from a hinge at the front of the bed, like a trunk lid. The UnderCover covers below are made of ABS plastic and clamp to the bed rails without drilling. Some come painted to match select factory colors.
The main advantages:
- Security: a solid lid with a lock (a key lock or a lock through the tailgate, depending on the model) keeps cargo out of sight.
- Appearance: with no folds or slats, a one-piece cover gives the bed a clean, finished look, especially a painted, color-matched lid.
The trade-off is cargo height. A one-piece lid doesn't fold or roll, so tall loads mean opening the lid or taking the cover off. One-piece covers also don't work with ladder racks, headache racks or bed-rail tool boxes.
Best One-Piece Truck Bed Covers We Carry
Every one-piece cover in our one-piece collection is from UnderCover, which makes several lines for different budgets and finishes. Here's how they differ.
1. UnderCover Elite LX
The UnderCover Elite LX is a standard-profile ABS lid painted to match select factory paint codes. It locks with a key, and the underside is carpet-lined. Listings include LED lights and a cargo retriever tool for reaching items near the cab.
Good to know
- Painted to match select factory colors
- Key lock, carpet-lined underside, LED lights
- Clamp-on, no drilling; manufacturer estimate about 1 hour to install
2. UnderCover LUX
The UnderCover LUX is also painted to match select factory colors, but it sits low profile, closer to the bed rails. It locks through your tailgate handle lock, so locking the tailgate secures the bed.
Good to know
- Low-profile painted lid
- Locks through the tailgate handle lock
- Clamp-on, no drilling; works with bed caps
3. UnderCover Elite
The UnderCover Elite gives you the Elite design in a black matte textured finish instead of paint. It locks with a key and its listings include LED lights and a cargo retriever tool. UnderCover publishes a load rating for this line; check the manual for how the load must be spread.
Good to know
- Black matte textured finish, no painting needed
- Key lock, LED lights, cargo retriever tool
- Clamp-on, no drilling
4. UnderCover SE
The UnderCover SE is a low-profile lid in black matte textured ABS. One key controls both locking hinges (a single-point lock), and listings include LED lights. It's the simpler option in the lineup for owners who want a one-piece lid without a painted finish.
Good to know
- Low profile, black matte textured finish
- Single-point key lock
- Clamp-on, no drilling; works with bed caps
What to Consider When Choosing a One-Piece Cover
Finish: painted lids (Elite LX, LUX) match select factory paint codes, so confirm your truck's paint code. Textured black lids (Elite, SE) don't need a color match.
Profile: low-profile lids (LUX, SE) sit closer to the rails; standard-profile lids (Elite LX, Elite) sit a little higher.
Locking: decide whether you'd rather lock through the tailgate or carry a separate key.
Fitment: one-piece covers are made for specific years, bed lengths and factory options such as rail systems or bed storage boxes. Not sure which fits? Call us for a fitment check by phone at (806) 621-1226.
Conclusion
A one-piece cover is a good fit if you want a solid, lockable lid and a clean look, and you don't often haul cargo taller than the bed rails. Choose a painted Elite LX or LUX to match your truck, or a textured Elite or SE for a simpler black finish.
Browse our one-piece cover collection to find the right model for your truck.
