What Is a Straddle Stacker? Uses and Who Needs One

Short version: a straddle stacker is a walk-behind electric truck that lifts a pallet to somewhere between 8 and 12 feet, using two adjustable legs that straddle the load rather than a heavy counterweight to stay upright. The operator walks behind it with a tiller handle. It is not a forklift and it is not trying to be.

The reason to care is the price and the footprint. A straddle stacker does a large share of what people buy a much bigger machine to do, at roughly a fifth of the cost, and it asks nothing of your building: no three-phase power drop, no slab engineering, no widened aisles. If your racking tops out around 12 feet, this is very often the correct machine and not the compromise it looks like.

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What a Straddle Stacker Is

Take a powered pallet jack, add a mast, and you have the general idea. A straddle stacker lifts and stacks rather than just transports, and it does so pedestrian-controlled, at walking speed, on a battery.

OSHA files it under Class III, electric motor hand trucks or hand/rider trucks, the same class as pallet jacks and tow tractors. That matters for training, which we cover further down.

The defining feature is in the name. Two legs run forward along the floor on either side of the load, and those legs carry the weight. That is what replaces the counterweight a sit-down forklift needs. The result is a machine that carries 2,640 to 3,000 lb while weighing only about 1,300 to 1,800 lb itself. A counterbalance machine handling the same pallet weighs several times that, because the counterweight is the whole point.

The trade-off is that the legs have to go somewhere, and that is the single most important thing to understand before you buy one.

What the Straddle Legs Change

The legs buy you stability and low weight. They cost you access. Both halves are real.

What they get you

• Stability without mass. Load is carried between two widely spaced points near the floor, which is inherently steadier than cantilevering it off the front of a chassis.
• Adjustability. On the machines we stock, leg span adjusts by hand without tools, so one truck handles several pallet footprints. Fork spread adjusts too, from about 8 to 33 inches.
• A very low profile at floor level. Lowered fork height runs about 2.35 to 2.6 inches, low enough to enter standard pallet openings without ramping.

What they cost you

• The legs need floor space alongside the load. A pallet pushed tight against a wall, wedged between two other pallets, or sitting inside a rack bay with no clearance at floor level is a pallet a straddle stacker cannot get to.
• Pulling from ground-level rack bays is often out. Unless the racking has open clearance at the base for the legs to pass through, you will not reach the bottom position. This surprises people constantly.
• Leg span sets your pallet compatibility. Too narrow and the legs will not clear the load. Too wide and you lose the tight-space advantage you bought the machine for.

If the legs are going to be a problem in your building, the machine you actually want is a counterbalance forklift →, which trades the legs for a weighted chassis and can drive straight up to any load.

Take-away: a straddle stacker is excellent at picking up free-standing pallets off open floor and putting them onto racking, and poor at retrieving pallets that are boxed in. If most of your moves are floor to rack and rack to floor with room around the load, the legs cost you nothing you will notice. If your pallets live jammed together on a crowded floor, they will cost you every single day.

How It Compares to Everything Else

Machine	Lifts to	Machine weight	Our price range
Electric pallet jack	About 8 in.	370 lb	$2,378
Straddle stacker	98 to 145 in.	1,300 to 1,780 lb	$5,570 to $8,554
Counterbalance stacker	Similar	Heavier	Higher
Reach truck	138 to 275 in.	3,780 to 9,330 lb	$23,999 to $50,399
Counterbalance forklift	Up to 216 in.	Much heavier	$23,999 and up

The comparison that decides most purchases is straddle stacker versus counterbalance stacker. They lift similar loads to similar heights. The counterbalance version drops the legs and uses a weighted chassis instead, which lets it drive straight up to a load and handle pallets the legs cannot fit around. You pay for that in weight, in cost, and in a longer machine.

Buy the counterbalance version if your pallets arrive from many different suppliers in many different formats, or if you routinely need to pull from ground-level rack positions. Buy the straddle version if your pallet formats are reasonably consistent and your loads sit on open floor, which describes most stockrooms and small warehouses.

Above this category sits the reach truck →, which goes far higher and moves far faster, and costs four to nine times as much. Below it sits the pallet jack →, which moves pallets but barely lifts them.

Nothing About Your Building Has to Change

This is the argument for the category and it almost never gets made, because it is not a spec you can print on a data sheet.

Weight. These machines weigh 1,300 to 1,780 lb. A reach truck starts at 3,780 lb and the tall one weighs 9,330 lb before you put a pallet on it. That difference decides whether you can use the machine on a mezzanine, on an upper floor, in a freight elevator, or on a slab whose thickness nobody can document. It also decides whether the machine can be moved between sites in a box truck instead of on a lowboy.

Power. The charger is built into the machine, so there is no separate charging station and no battery room. Compare that to the reach truck class, where the chargers on the units we stock are specified at 440V three-phase and 480V input. Installing three-phase service where you do not already have it is a five-figure electrical project on its own. Confirm the outlet requirement with us before you order, but the gap in that direction is the whole point.

Space. Overall length runs 70 to 73.7 inches and turning radius 52.6 to 57.5 inches. That is tighter than anything above it in the category, which means the aisles you already have are almost certainly wide enough.

Maintenance. Electric drive, polyurethane wheels, no hydraulic mast tilt, no engine, no fuel. There is genuinely not much to go wrong, and what does go wrong is cheap.

Add it up and the straddle stacker is the machine you can buy on a Tuesday and use on a Friday. Everything above it in the category comes with a project attached.

Reading the Lineup: Two Chassis Families

We stock fifteen Ekko straddle stackers and at a glance they look like fifteen versions of the same machine. They are not. There are two distinct chassis families, and the difference between them is leg geometry.

Spec	C-series (EB13C, EB14C)	E-series (EB12E, EB13E)
Adjustable leg span	35.4 to 51.2 in.	45.7 to 59.1 in.
Turning radius	56.1 to 57.5 in.	52.6 in.
Overall length	73.4 to 73.7 in.	70 in.
Lowered fork height	2.56 to 2.6 in.	2.35 in.
Side-shift available	No	Yes

The C-series legs close down narrower. The E-series legs open up wider. They overlap in the middle but they are aimed at opposite problems. If your loads are consistent and you are threading tight spaces, the C-series closes to 35.4 inches. If you handle oversized or varied loads, the E-series opens to 59.1 inches. Neither range covers both ends, so this is a real fork in the road rather than a trim level.

The E-series is also the shorter and tighter-turning chassis, and it is the only one offering side-shift, which lets you nudge the load laterally to line up with a rack opening instead of repositioning the whole truck.

One honest note on side-shift: it is not free. On the 145 inch model, adding side-shift drops rated capacity from 2,800 lb to 2,640 lb and adds about 105 lb of machine weight. On the 119 inch model it adds roughly 310 lb. Take it if precise rack placement is a daily frustration. Skip it if you are mostly stacking on open floor.

Who Needs One, and Who Does Not

Buy one if

• Your racking or stacking tops out around 12 feet or less and you have no plans to go taller.
• You are moving pallets a few dozen times a day, not a few hundred.
• Your floor is flat, indoor, and reasonably smooth.
• Your team is currently stacking by hand, or you are renting a forklift for a job you do weekly.
• You are on an upper floor, a mezzanine, or a slab you would rather not put five tons on.

Do not buy one if

• You need to load trailers. Straddle stackers do not go up dock plates and do not drive into trucks. That is a hard no, not a preference.
• Your site has ramps or grades. Covered in the safety section below, and it is genuinely disqualifying rather than a caution.
• You work outdoors or on broken pavement. Polyurethane wheels and low ground clearance mean smooth indoor concrete only.
• Your pallets sit boxed in. Back to the legs. If you cannot get clearance alongside the load, the machine cannot pick it up.
• You need speed. Travel is about 2.5 mph, which is a brisk walk. Throughput is the ceiling on this category, not lifting.

Four Specs That Decide the Purchase

1. Leg span against your actual pallets

Measure the pallets you really run, including the ones that arrive from suppliers rather than the ones you buy. Then confirm the clear span between the legs at the setting you would use. This is the number that makes a straddle stacker either the right machine or an expensive mistake, and it is the one buyers skip.

2. Lowered mast height against your door

Lowered mast heights across the line run from about 72 inches up to 98.8 inches. The tall-mast models are the ones to watch: a 145 inch lift model sits at roughly 95 to 99 inches lowered, which is over 8 feet. Check your lowest doorway and any overhead obstruction on the route the machine will travel, not just the room it will live in.

3. Lift height against your top beam, plus clearance

Maximum lift height is measured to the fork face. You need the pallet plus its load to clear the beam, so budget several inches above the rated number. A 118 inch machine does not reliably serve a beam set at 118 inches.

4. Capacity at height, not just capacity

Rated capacity is quoted at a stated load center, typically 24 inches. A deep or unevenly loaded pallet shifts the load center outward and the safe capacity drops. If your loads are heavy and awkward, ask for the derate chart rather than assuming the headline number applies to your worst pallet.

Safety, Ramps, and the OSHA Class

Operators still need training

Class III sits in the same regulation as everything else with forks on it. Under 29 CFR 1910.178(l), operators must be trained and evaluated on the specific type of truck they run, with re-evaluation at least every three years. Walk-behind does not mean exempt, and a certification earned on a sit-down forklift does not transfer to a stacker.

Never on an incline

This one comes up constantly and the answer is not a preference. A straddle stacker should not be used on an incline. The machine is short, light, and carries its load between two legs near the floor, which is stable on level ground and precisely the opposite on a slope. On a grade the load's center of gravity shifts toward the downhill side, and with the mast raised the machine can get away from the operator or tip. Ramps, dock plates, and sloped drives are all outside the design envelope. Keep it on flat, level, indoor floor.

Which wheels steer

On a walk-behind straddle stacker, steering comes from the drive wheel under the power unit at the operator end, controlled directly by the tiller handle. The load wheels out under the straddle legs do not steer; they follow. That is why these machines pivot around their back end rather than swinging a front axle, and why turning radius figures like 52.6 inches are measured the way they are. Practically, it means you steer the tail and the legs track along behind, so plan your approach to a rack opening before you commit rather than trying to correct halfway in.

The habits that matter

Travel with the forks low. Do not raise a load while moving. Slow before turns, not during them. Set the legs before you load, not after. None of that is exotic, and all of it shows up in incident reports.

Our Top Picks

Here are the standouts from this category, picked by our Lift Specialists for real-world fit and value.

Frequently Asked Questions

What is a straddle stacker used for?

Lifting pallets off the floor and stacking them onto racking, indoors, up to roughly 8 to 12 feet. It is the step above a pallet jack, which moves pallets but only lifts them a few inches, and the step below a reach truck, which goes far higher and costs several times more. Typical homes for one are stockrooms, small warehouses, light manufacturing floors, and mezzanines.

What is the difference between a straddle stacker and a forklift?

A straddle stacker uses two adjustable legs that straddle the load to stay stable, and the operator walks behind it at about 2.5 mph. A forklift uses a heavy counterweight instead of legs, carries a seated or standing rider, travels far faster, and can work outdoors and load trailers. The stacker is lighter, cheaper, and tighter-turning; the forklift is faster and far more versatile.

Can a straddle stacker be used on an incline?

No. These machines are designed for flat, level, indoor floors. On a slope the load's center of gravity shifts and a short, light, leg-supported truck becomes unstable, particularly with the mast raised, which risks tipping or losing control. Ramps and dock plates are outside the design envelope, so if your site requires grade work you need a counterbalance machine instead.

Which wheels steer on a straddle stacker?

The drive wheel under the power unit at the operator's end, steered directly by the tiller handle. The load wheels under the straddle legs are not steered and simply follow the machine. That is why a straddle stacker pivots around its rear rather than steering from the front, and why you should line up your approach to a rack opening before committing to it.

How high does a straddle stacker lift?

The models we stock run from 98 inches to about 145 inches, which is roughly 8 to 12 feet. That covers two to three levels of typical pallet racking. If you need to go higher than about 12 feet, you are into reach truck territory and a different budget entirely.

How much does a straddle stacker cost?

Ours run $5,570 to $8,554 depending on capacity, lift height, and whether the battery is lead-acid or lithium. For comparison, the reach trucks we stock start at $23,999. That gap is the single strongest argument for the category: if your racking is under 12 feet, a straddle stacker does the job for roughly a fifth of the money.

Do you need certification to operate a straddle stacker?

Yes. OSHA classifies it as a Class III powered industrial truck, and 1910.178(l) requires formal training plus a workplace evaluation on that specific truck type, with re-evaluation at least every three years. Walk-behind operation does not exempt it, and certification on another class of truck does not carry over.

Can a straddle stacker pull pallets from a rack?

Only if the rack has clear space at floor level for the straddle legs to pass alongside the pallet. Many ground-level rack positions do not, which is the most common disappointment with these machines. If pulling from ground-level bays is a daily task, look at a counterbalance stacker, which drops the legs in exchange for a heavier chassis.

Take the Next Step

Four measurements settle this purchase: the outside dimensions of the pallets you actually handle, your top beam height, your lowest doorway, and whether there is a ramp anywhere on the route. Get those four and the model picks itself.

Send them to our Lift Specialists at (470) 208-2754 or support@pitstop-pro.com and we will tell you which leg geometry fits. We will also tell you when a pallet jack at $2,378 covers what you are actually doing, and when the legs are going to be a problem in your building.

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External authority: OSHA 1910.178 Powered Industrial Trucks · OSHA eTool: Forklift Types and Classes