The best kayak racks for a truck

Start from what the truck already gives you

Every other page in this section is about putting a rack on a vehicle that has none. A truck is different. It arrives with a six-foot open box behind the cab, and for a lot of boats that box is the rack.

The arithmetic is simple. A 5.5-foot bed with the tailgate down is about seven and a half feet of support. A 6.5-foot bed is closer to eight and a half. A ten-foot recreational kayak in either rides with two or three feet of overhang, which is legal in every state with a flag on the end and sensible with a bow line to the front tie-down. That method — and the foam block that stops the hull sliding — is on how to transport a kayak in a truck bed.

The rack question only arises when that stops working: a 12- or 14-foot boat, a short bed, a tonneau cover you do not want to open, or two boats. This page is about that situation.

How we ranked these

Four criteria, weighted equally and published on how we pick: capacity (published load rating against what a boat weighs), adjustability (published width and height range, which decides whether it fits your bed and your hull), build (material, finish and what is in the box), and value.

Adjustability does most of the work here and it is not the usual criterion for a rack. A hitch extender has to match the height of a particular tailgate on a particular truck, and the difference between a product with eight height settings and one with three is the difference between a bar that meets the boat and a bar that does not.

The three ways to carry a long boat on a truck

The extender is the sweet spot for this site’s reader. It solves the overhang problem, needs nothing drilled, and costs a fraction of an over-bed rack. Both picks here are extenders for that reason, and the over-bed rack is covered in prose rather than recommended.

How a hitch extender actually works

A T-shaped steel bar slides into the 2-inch receiver and stands up behind the truck at roughly tailgate height. The stern of the boat rests on it instead of hanging in the air, so a 14-foot hull is supported at the cab end of the bed and again three feet behind the bumper.

Malone publishes the Axis at 375 lb capacity with eleven width settings from 40 to 60 inches and eight vertical height settings from 55.5 to 62.5 inches above the receiver. Darby publishes the Extend-A-Truck at 350 lb, a fixed 48-inch width and a vertical range of 53 3/8 to 60 3/8 inches.

Both ratings are several times what a kayak weighs. The figures that decide it are the height range — the bar has to land level with your tailgate, and tailgates vary by a foot between trucks — and the width, which decides whether one boat or two goes across it.

The Axis has a second trick worth understanding: rotated horizontal, it becomes a low bar that extends the bed floor rather than a tall one that supports a roof load. Malone publishes twenty-one height settings in that position, from 13 to 43 inches. That is the mode for a boat lying flat in the bed with the tailgate down.

What the extender does not solve

The receiver. Both extenders need a 2-inch hitch. Many mid-size trucks have a 1.25-inch receiver or none, and adapters are not rated for a side load. Check under the bumper before you buy anything on this page.

Wobble. A bar cantilevered out of a receiver moves on every expansion joint, and a moving bar under a strapped boat works the straps loose. Malone publishes an anti-wobble bracket and knobs on the Axis for exactly this. Darby does not publish one, and it is the reason the two are ranked in the order they are.

The straps. Darby states that tie-downs are not included. Malone includes foam pads but not straps either. You need two cam straps over the hull, a bow line to the front of the bed and a stern line to the extender — the same discipline as a roof, and the same reasons, on the tie-down strap roundup.

Visibility. A boat on an extender hides the plate and the lights. Some states require a light bar on the extender; all of them want a red flag on the overhang. Neither is included with either product.

Strapping a boat on an extender, in order

The extender changes where the boat is supported. It does not change how it is held down, and the failure mode is the same as a roof: a strap that works loose over the first few miles.

1. Set the extender height first, with the boat off. The bar should meet the hull at the same height the tailgate or the front support does, so the boat lies flat. A boat that slopes up to the bar is a boat that slides down off it.
2. Load with the foam block in place. The block at the front stops the hull sliding forward into the cab under braking. Malone ships the block kit with straps; use them here.
3. Two cam straps over the hull. One near the front support, one near the extender, each looped around the bed rail or the bar and back over the boat. Snug, not cranked.
4. Bow line to the front of the bed. This is the one that stops the boat leaving under hard braking, and it is the one people skip.
5. Stern line to the extender. Not to the boat only — to the bar, so the boat and the bar are tied to each other and the bar cannot rotate under it.
6. Flag, then drive a mile and check. Everything settles in the first mile. Pull over and re-snug.

Cam buckles only. A ratchet on a polyethylene hull over a bed rail crushes the hull at the rail, and on a truck there is a hard steel edge exactly where the strap crosses. The strap choice is on the tie-down strap roundup.

Loading a long boat alone

A truck bed is the easiest loading height on any vehicle, and a 14-foot boat is still awkward to get into one by yourself.

The method: drop the tailgate, stand the boat on its stern behind the truck, walk your hands up the hull, and lean the bow onto the tailgate edge with a towel under it. Then lift the stern and push the boat forward along the bed. You never carry the full weight, and you never lift above your waist.

With the extender fitted, the stern lands on the bar rather than hanging, and the push is shorter. This is the quiet advantage of the extender over an over-bed rack: the loading height stays at the tailgate, not the roof.

The tonneau cover problem

A hard tonneau or a canopy turns the bed into a closed box, and the boat has to go on top of it. That is where the over-bed rack lives, and it is worth being honest about what it costs.

A rack that clamps to the bed rails and clears a tonneau is several times the price of an extender, and it puts the boat at roof height on a vehicle that is already tall — the loading problem that sidelines J-cradles on SUVs, covered on the roof rack roundup, applies here with interest.

The Axis in its vertical position is the cheaper compromise: a rear load bar that supports the stern of a boat sitting on the cab roof or a canopy rack, so the boat is held at both ends without a full rack system. It does not replace the front support; it replaces the overhang.

One habit that costs nothing: pull the extender before you park in a tight space. A bar standing three feet behind the bumper is invisible in a mirror and expensive against a garage door.

What the extender does when there is no boat on it

A hitch-mounted bar is a useful thing to own beyond kayaks, and it is worth saying because it changes the value arithmetic for someone on the fence.

In the horizontal position it extends the bed for lumber, ladders and anything long from the hardware store. In the vertical position it supports the rear of a canoe, a paddle board, or a ladder rack load. Malone publishes the Axis as a bed extender and a roof load extender for that reason, and Darby publishes the Extend-A-Truck as fitting naked-roof vehicles as well as trucks.

The counter-argument is storage. A 37.5-pound steel bar lives in the garage when it is not on the truck, and it takes up the same floor space as the boat it carries. Owners who use it monthly keep it; owners who use it twice a summer sell it.

When the truck is not the answer

If you own a truck and carry two boats regularly, or you carry them a long way, the arithmetic of an over-bed rack starts to look like the arithmetic of a trailer. A trailer keeps the bed free, loads at waist height, and does not care how tall the truck is.

It also costs several times any rack on this page and needs somewhere to live. Whether that trade makes sense is exactly the question on roof rack versus trailer, and it is worth reading before spending rack money on a truck you may end up trailering with anyway.

What we would buy

For a boat under about 10 feet, nothing on this page. Tailgate down, a foam block kit to stop the hull sliding, a bow line and a flag. Malone publishes the block kit at 55 lb with straps included, and it is the same kit that carries the boat on a bare car roof.

For a 12- to 14-foot boat in a short bed, the Malone Axis. The anti-wobble hardware and the published range of height and width settings are what separate it from the field, and it converts to a rear load bar if you later add a canopy.

For one boat, one truck, and the simplest thing that works, the Darby. Fewer parts, a lifetime warranty, and a fixed width that suits a single hull — buy straps on the same order because it ships without them.