Will a pallet stacker fit your warehouse?
The SST15+ electric stacker lifts its forks to 138 in (3,500 mm), about 11.5 ft. Measure your top beam (not the overall rack height), doorway, overhead clearance, aisle and pallet, then send us the numbers: we confirm the fit before you buy.
Check your measurements
Enter what you've measured. Each check shows how it compares with the SST15+. Send it with your quote request and our team confirms the fit.
Your fit check
We confirm the fit before you buy. Your measurements are added to your quote request.
Watch: will the SST15+ reach your racking?
The fit check, step by step: lift height, beam height, doors, ceiling, aisles, pallets and the load chart. Narration is an AI voice; all machine footage is real.
Chapters
Read the transcript
Will the Sumachay SST15+ actually reach your warehouse racking? Let's check lift height, beam height, doors, ceiling, aisles and pallets. Every SST15+ quote request asks for your lift height, so let's get that number right.
Here's the one number that matters: the SST15+ lifts its forks to a maximum of 138 inches, or 3,500 millimetres. That's about eleven and a half feet. If the beam you need to load is higher than that, it isn't the right fit. Of 207 lift-height answers in our SST15+ quote requests, the biggest group, about three in ten, said ten to twelve feet. Roughly one in four said more than eleven and a half feet. Often, that's the overall rack height, not the beam the pallet sits on.
So which height actually matters? The top of the beam you'll set pallets on. To set a pallet on it, the bottom of the pallet must clear the beam, with a little room to lift off and set down. So your highest usable beam sits somewhat below 138 inches, never right at it. Send us your beam height with your quote request, and our team will check the fit.
Here's how to measure, step by step. One: run a tape from the floor to the top of the highest beam you'll load, and write it down. Two: measure the height of every doorway the stacker has to pass through. Three: at the rack face, measure up to the lowest sprinkler, light or duct. Four: measure your aisle width, from rack face to rack face. Five: measure the outside width of your pallets, on the side the forks go in.
Doorways: with the mast lowered, the SST15+ stands 89 inches tall, so every door opening needs more than that. Ceiling: at full lift, the mast extends to 158 inches, so check that clearance at the rack face. For aisles, the minimum is about 90 inches with a 1000 by 1200 millimetre pallet, and we recommend planning for 91 to 92 inches. For delivery, it's driven onto the truck, so the trailer needs at least 95 inches of interior height.
The SST15+ is a straddle stacker: its legs go around the pallet, not under it. So the pallet has to fit between the legs, which adjust to roughly 38 to 49 inches inside. For a standard 40 by 48 inch skid, we generally recommend the middle position, about 43.7 inches inside. Compare that inside width with the outside width of your pallet, on the side the forks go in.
Last, check your load weight. The SST15+ is rated for 3,300 pounds at a 24-inch load centre. Capacity is lower at full height, so check the load chart on the spec sheet against your heaviest pallet and your top beam.
Got your numbers? Check your racking compatibility and request a quote at sumachay.com. The link is in the description. You'll get a formal quote with freight options within one business day. The SST15+ is assembled in Canada, with an 18-month warranty.
1. Top beam height, not rack height
Run a tape from the floor to the top of the highest beam you'll load and write it down. That's the number that matters, not the overall height of the rack. The SST15+ lifts its forks to 138 in (3,500 mm), so your highest usable beam sits somewhat below that, never right at it.
2. Doorway clearance
Measure the height of every doorway the stacker has to pass through. With the mast lowered, the SST15+ stands 89 in (2,270 mm) tall, so every door opening needs more than that.
3. Ceiling and overhead obstructions
At the rack face, measure up to the lowest light, sprinkler, duct or door track. At full lift the mast extends to 158 in, so check that clearance where you'll stack.
4. Narrowest aisle
Measure your narrowest aisle from rack face to rack face. The minimum is about 90 in with a 1000 × 1200 mm pallet (87 in with an 800 × 1200 mm pallet), and we recommend planning for 91–92 in.
5. Pallet width between the straddle legs
The SST15+ is a straddle stacker: its legs go around the pallet, not under it. Measure the outside width of your pallet on the side the forks go in, and compare it with the space between the legs, which adjusts to roughly 38–49 in (970–1,250 mm) inside.
6. Racking: clearance where the legs go under the rack
When you stack into a rack bay, the straddle legs travel in at floor level. Measure the height from the floor to the underside of the bottom beam and the open width between the uprights, and send both with your quote request. Our team checks them for your pallet and leg position.
7. Delivery
The SST15+ is driven onto the delivery truck, so the trailer needs at least 95 in of interior height. Tell us about your receiving door or dock when you request a quote.
Related guides
New to stackers? Read what a pallet stacker is, compare models in the pallet stacker buying guide, or see the full SST15+ specs and load chart.
Quick checks: top beam vs rack height
Read the transcript
Can your top beam sit at 138 inches? That's as high as the SST15+ forks go. So the answer is no. Here's why. 138 inches is 3,500 millimeters, about 11 and a half feet. What matters is the top of the beam you'll set pallets on. To set a pallet down, the bottom of the pallet must clear the beam, with a little room to lift off and set down. So your highest usable beam sits somewhat below 138 inches, never right at it. Need to load a beam higher than that? Then it isn't the right fit. Measure your top beam, then see the SST15+ at sumachay.com.
Read the transcript
Rack height or beam height? Measure the wrong one and your fit check is off. We looked at 207 lift height answers in our SST15+ quote requests. The biggest group, about 3 in 10, said 10 to 12 feet. Often, that's the overall rack height, not the beam the pallet sits on. So grab a tape. Measure from the floor to the top of the highest beam you'll load and write it down. The SST15+ lifts to 138 inches, so your highest usable beam sits somewhat below that, never right at it. Got your number? See the SST15+ at sumachay.com.
Fit questions
Straight answers from the SST15+ spec sheet and fit-check video.
The SST15+ lifts its forks to a maximum of 138 in (3,500 mm), about 11.5 ft. Your highest usable beam sits somewhat below that, never right at it, because the pallet has to clear the beam with a little room to lift off and set down. It is rated for 3,300 lb; capacity is lower at full height, so check the load chart on the spec sheet against your heaviest pallet.
Beam height. Measure from the floor to the top of the highest beam you'll load. Many quote requests give the overall rack height instead, which is taller than the beam the pallet sits on and can make a good fit look like a bad one.
With the mast lowered it stands 89 in (2,270 mm) tall, so every door opening needs more than that. At full lift the mast extends to 158 in, so check the clearance to lights, sprinklers and ducts at the rack face.
The minimum is about 90 in with a 1000 × 1200 mm pallet, or 87 in with an 800 × 1200 mm pallet. We recommend planning for 91–92 in of clear aisle. The turning radius is 57 in (1,455 mm).
The SST15+ is a straddle stacker: its legs go around the pallet. The space between the legs adjusts to roughly 38–49 in (970–1,250 mm) inside. Compare that with the outside width of your pallet on the side the forks go in. The forks are 42 in (1,070 mm) long.
A top beam above 11.5 ft (3,500 mm) isn't a fit for any stacker Sumachay sells today, and we'd rather tell you that up front. Double-check that you measured the top beam, not the top of the rack. If it really is higher, send us your numbers anyway and we'll talk through your options.
Have your numbers?
Send them with your quote request. Our team checks the fit and replies with a formal quote.
Get a fit-checked quoteWe confirm the fit before you buy. Your measurements are added to your quote request.
See the SST15+ or request a fit-checked quote
Full specs and the load chart are on the SST15+ page. Ready to check your site? Request a quote and include your measurements.