Our top pick: the UWS UWS EC10473 69-inch Heavy-Wall Aluminum Crossover.
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The Silverado 1500's exterior bed rail width of about 64 inches puts it in standard full-size crossover territory, so the product range is wide open. Two Silverado-specific facts shape the picks.
First, at 22.4 inches of box height this is the deepest bed of the four trucks on this site, which means a tall box is less likely to crowd your sight line than on a shallower truck. Second, the short bed at 69.92 inches of floor is more forgiving than an F-150 short bed, so a standard-depth crossover is a reasonable choice across the whole range.
The UWS for a truck you are keeping, the Better Built Crown for a tighter budget, the JOBOX if the truck parks on the street loaded. All three fit the rail width without drama.
How we ranked these for this truck
Build. Lid construction and wall thickness.
Weather seal. Seal design plus lid rigidity, which together determine whether the box is still dry in year five.
Security. Latch mechanism and lock points.
Bed usability. Weighted slightly lower here than on the F-150 page, because the Silverado's short bed and deeper box absorb a standard-depth crossover more comfortably.
Heavy-wall aluminum, a foam-filled RigidCore lid that does not flex when you sit on it, and a low profile that still clears most rear glass. This is the crossover to buy if you intend to keep the truck.
Who should skip it. Skip it on a 5'5" short bed. At 69 inches it will sit on the rails, but you lose a disproportionate share of a short bed and the money is better spent on a side-mount pair.
Build
9.4
Weather seal
8.8
Security
8.6
Bed usability
8.0
Value
7.4
What works
+Foam-filled lid does not oil-can under body weight
+Low profile clears rear glass on most full-size crew cabs
+Heavy-wall extrusion survives being used as a step
+Gas struts are serviceable rather than sealed units
What does not
−Among the most expensive aluminum crossovers on the shelf
−69 in is a full-size length — not a mid-size answer
A 70 x 19 x 14 in gloss black aluminum single-lid box at a price the premium brands do not touch. You give up some lid rigidity; you keep most of the useful volume.
Who should skip it. Not the one if you plan to stand on the lid daily — the panel is thinner than UWS's foam-filled RigidCore and will flex. Buy the UWS or a saddle box instead.
Build
8.0
Weather seal
7.8
Security
7.6
Bed usability
8.2
Value
9.2
What works
+Full 19 in of depth — a framing square lies flat
+Gloss finish wipes clean; dust does not show the way matte does
+Priced well below the premium aluminum boxes
What does not
−Lid flexes under weight compared with foam-filled designs
−14 in height can crowd rear glass on lowered or small-cab trucks
−Latch hardware is the first thing owners report replacing
11.0 cu ft of aluminum in the low-profile saddle format that fleets have standardized on for decades. It is the box every other box gets compared with, and the reason is parts availability and a lid that stays sealed.
Who should skip it. It is the most expensive way to store tools in a pickup bed short of a drawer system. If this is a personal truck that sees a job every other weekend, the money is better spent elsewhere.
Build
9.6
Weather seal
9.4
Security
8.8
Bed usability
8.2
Value
6.8
What works
+11.0 cu ft published — not an estimate
+Weather Guard latch and seal hardware is available decades out
JOBOX's Gear-Lock drives multiple lock points from one key turn, which is the single biggest difference between a box a thief opens with a screwdriver and one he walks away from. The rest of the box is honest fleet-grade aluminum.
Who should skip it. It costs premium money and spends it on the latch rather than the lid. If your box lives behind a locked gate every night, you are paying for security you do not need.
Build
9.0
Weather seal
8.6
Security
9.6
Bed usability
8.0
Value
7.0
What works
+Multi-point locking is genuinely harder to defeat than a single center latch
+Fleet-grade build with parts availability years out
+Low profile preserves rear visibility
What does not
−Expensive
−Heavier than a comparable thin-wall box — two people to lift it on
−Gear-Lock hardware is the part to keep lubricated through winter
48 x 11.5 x 11 in is the size that actually fits a 5'5" or 5'7" bed rail without crowding the wheel well. Small, honest, and the right answer where a 72 in topsider will not go.
Who should skip it. 11 in of depth is a hand-tool box, not a power-tool box. If cordless kits in cases are the cargo, you want a crossover.
Exterior rail width. Expect about 64 in, measured outside to outside across the rail tops nearest the cab.
Which truck you have. On a 2019, new body or Classic. Clamp kits are sometimes listed per body style.
Check the fitment chart for your year. The chart is the authority; your measurement is the sanity check.
Decide about the cover first. On a 2019 truck the cover is body-style specific too, so get both right at once.
Side boxes on a Silverado
The Silverado's interior floor width of about 71.4 inches is generous, and the short bed at 69.92 inches is long enough that a 48-inch side box fits the rail without crowding the wheel well. That makes the side-mount route genuinely viable here on every bed length rather than only on the long beds.
If the truck carries material more than tools, that is worth taking seriously — you keep the entire floor and give up the rail and the cover. The side-mount roundup covers the trade.
What we would actually buy
On any Silverado bed length, carrying tools: the UWS heavy-wall crossover. The rail width is right, the bed depth absorbs it, and the lid construction is what you are paying for.
On a street-parked truck that stays loaded overnight: the JOBOX with the multi-point lock. The latch is the only hardware upgrade in this category that changes the outcome rather than the time taken.
On a truck carrying material: a 48-inch side box, or a 72-inch topsider if you want the full rail and never run a cover.
Questions people actually ask
What is the best tool box for a Silverado 1500?
For a truck you are keeping, a heavy-wall aluminum crossover with a cored lid — the lid construction is what keeps the box dry in year five. For a street-parked truck that stays loaded, a box with a multi-point lock instead. Both fit the Silverado's 64 in rail width.
Will a 69 inch tool box fit a Silverado short bed?
Yes. 69 in is a full-size class designed around rail widths like the Silverado's 64 in, and the short bed's 69.92 in floor leaves about 51 in behind a standard-depth box. Check the manufacturer's fitment chart for your year.
Is a side mount box a good idea on a Silverado?
More so than on most trucks. The 71.4 in floor width and the 69.92 in short-bed floor mean a 48 in side box fits the rail without crowding the wheel well on every bed length. You keep the whole floor and give up the rail and the cover.
Does a tool box clear the rear window on a Silverado?
Usually comfortably — at 22.4 inches of box height this is the deepest bed of the four trucks here, so a box of a given height sits lower relative to the glass. Still worth checking on a lowered truck with a tape.
Do I need a body-style-specific tool box for a 2019 Silverado?
The box itself usually is not body-style specific, because it clamps to the rail lip. The clamp kit sometimes is. Check the listing, and for covers, liners and racks the 2019 split matters a great deal more.
Last reviewed October 5, 2026. Think a figure here is wrong? Tell us at contact@toolboxandtruck.com and we will check it, fix it and date the correction — see our editorial policy.
