More than most people budget for. Payload covers everything the truck carries — passengers, gear, and every accessory bolted on — and heavy add-ons stack up faster than they seem, especially on midsize trucks. Before a big purchase, add up published weights for what's already installed. If the total is creeping toward half your payload before camp gear goes in, prioritize rather than accumulate.

Steel where you'll hit things, aluminum where you'll carry things. Steel takes impact and abrasion, bends instead of cracking, and costs less, but it's heavy and its coating needs upkeep. Aluminum saves real payload and shrugs off rust, but dents show and repairs are harder. For load-carrying gear on a payload-limited truck, aluminum's weight savings usually win the argument.

Depends on the design — many pieces bolt to factory holes, stake pockets, or threaded bed-rail points, while others require drilling, and the product page says which before you buy. If you lease, plan to sell soon, or just hate making holes, filter for no-drill designs. Where drilling is required, measure twice, deburr the holes, and seal bare metal so rust never gets a head start.

Sometimes — it comes down to who claims the bed rails. Covers and shells typically clamp to the same real estate many bed accessories use, so check each product's mounting footprint against your cover's clamp locations before ordering. Some combinations coexist fine, some need relocated clamps, and some are simply either/or. Measure first; research is less annoying than returns.

Frequently, yes. The same model year often comes in multiple cab and bed combinations, and parts sized for one won't fit another — a rack or rail system for a short bed is not a long-bed part. When you filter by year, make, and model, go one step further and confirm the listing matches your specific configuration before checkout.