A standby generator is an easy load to price badly. The kW rating tells a carrier almost nothing; the same 100 kW engine and alternator can ship as a 3,100 lb open set or as a 5,500 lb, ten-foot-tall enclosure on a fuel tank. Those two units go on different trucks, need different unloading and land at different ends of every price range below. This guide uses manufacturer spec sheets for the weights and dimensions, collects the 2026 shipping prices that public pages actually publish, labels each one as shipper price or carrier pay, and walks through the decisions that move a generator from the bottom of a range to the top.
What you are shipping: generator sizes and skid weights
Start with the spec sheet, not the brochure. Generac publishes dimensions and weights for every enclosure and base-tank combination, and the spread inside one kW rating is larger than the spread between ratings. The table uses Generac's own pages and spec sheets (opened October 2026); other manufacturers publish the same kind of table, and it is the first thing a carrier will ask for.
| Class | Example (manufacturer spec) | L × W × H | Shipping weight | Usual way it moves |
|---|---|---|---|---|
| Home standby, 22 kW | Generac Guardian 22 kW (7042), aluminum enclosure, propane or natural gas | 48 × 25 × 29 in | 466 lb | Palletized LTL with a liftgate, or a hotshot partial |
| Light commercial, 50 kW | Generac SD50 diesel (spec sheet Rev. D, Sept 26, 2024) | Open set 76.0 × 37.4 × 45.2 in; Level 2 enclosure, no tank, 94.8 × 38.0 × 61.9 in | 1,765–1,838 lb open set, no tank; about 2,250–2,820 lb with a 54–300 gal base tank; Level 2 enclosure adds 617 lb (steel) or 325 lb (aluminum) | Hotshot, often a partial |
| Commercial, 100 kW | Generac SD100 diesel (spec sheet Rev. D, June 10, 2025) | Open set 110 × 40 × 65 in; Level 2 on a 350 gal tank 145 × 40 × 118 in | 3,104 lb open set, no tank; 4,488 lb with a 350 gal tank; Level 2 enclosure adds 1,000 lb (steel) or 330 lb (aluminum) | Dedicated hotshot |
| Commercial, 150 kW | Generac SD150 diesel (spec sheet Rev. B, Nov 14, 2024) | Open set 117.9 × 49.7 × 57.2 in; Level 2 on a 510 gal tank 143.0 × 50.4 × 128.7 in | 3,333–3,920 lb open set, no tank; 4,698–5,285 lb with a 510 gal tank; Level 2 enclosure adds 1,377 lb (steel) or 645 lb (aluminum) | Hotshot by weight; check height |
| Large, 350–600 kW | Central States Diesel Generators' size table (July 2026), not a single model | Varies | 12,000–22,000 lb | Dedicated flatbed or step-deck |
Three things follow from the table. First, an enclosure and a base tank together can add three-quarters or more to the bare set's weight: the SD100 goes from 3,104 lb to about 5,490 lb (77% more) with a steel Level 2 enclosure on a 350-gallon tank. Second, the base tank is what makes a unit tall. The SD150's Level 2 enclosure is 91.7 in high with no tank and 128.7 in on the 510-gallon tank, a difference of three feet. Third, the configurations in the table are 25 to 50.4 in wide. Even the largest base-tank options on these spec sheets stay under the 102 in federal width limit (about 85 in for an SD50 on its 510-gallon tank), so width almost never triggers a permit; weight and height are the two numbers to get right. Generac notes that its figures are approximate and for estimation, so a scale ticket beats the sheet when one is available. For a sense of scale on the large end, Central States notes that enclosures and sub-base tanks can move a 750 kW unit with a 2,000-gallon tank up a full trailer class.
Enclosed unit or open set
An enclosed generator is built to sit outdoors: a weather-protected or sound-attenuated housing in steel or aluminum, usually on a base tank. It ships as one tall, boxy piece that does not normally need a tarp; A-1 Auto Transport (July 12, 2026) notes covered transport is not usually necessary for units built for outdoor use. Its weaknesses in transit are the sheet metal itself, which dents if a chain or a sling bears on it, and the doors and louvers, which need to be latched and covered.
An open set is the engine, alternator and controller on a steel skid, meant to go inside a building or a separate housing. It is lower and lighter (the SD100 open set is 65 in tall against 81 in for the enclosed unit with no tank) but has nothing between the weather and the alternator windings, wiring and control panel. Open sets are normally tarped, shrink-wrapped or crated, and they are easier to damage with a misplaced chain. Ask the seller which configuration you are buying before you describe the load; the two price differently once tarping and handling are added.
Hotshot, flatbed or LTL: choosing by weight and size
C.H. Robinson's flatbed group (April 6, 2026) describes hotshot as suited to freight under about 10,000 lb and 40 ft or shorter, with a ceiling near 17,000 lb, and names job sites and locations without dock access as where it fits. That describes most standby generators from 20 to 150 kW. Beardown Logistics (Feb 2026) puts non-CDL hotshot payload at roughly 9,000–11,000 lb and a CDL hotshot at up to 16,500 lb; our hotshot freight page explains why the non-CDL figure is often closer to 8,000–10,000 lb once the truck and trailer plates are counted.
- Under about 1,000 lb, on a pallet (a 22 kW home standby unit): LTL with a liftgate at delivery is the usual answer if the receiver can take a pallet. A hotshot partial fits when the delivery is a jobsite with no liftgate access or the date matters.
- About 1,500–7,000 lb (50–150 kW, open or enclosed): a dedicated hotshot, or a partial for a small open set. The deck is low and open, so a forklift can take the unit from the side and a crane can lift it from above.
- Over about 10,000 lb, two units, or unit plus switchgear and a transfer switch: a CDL hotshot or a 48-foot flatbed. Larger sets in Central States' 350 kW and up classes are flatbed or step-deck loads.
- Too tall for the deck: a deep base tank under a sound-attenuated enclosure can push the loaded height past 13 ft 6 in. There is no federal height limit; most state limits run from 13 ft 6 in to 14 ft (FHWA, Size Regulations report), so the lowest state on the route sets the ceiling. The fix is a lower deck, a height permit or a route through states with a higher limit, and it has to be decided before the truck is booked.
Cost to ship a generator by distance (2026)
These are the ranges the sources publish, grouped into the distance bands shippers ask about. Every figure is a shipper-side estimate unless marked carrier pay. Where a source publishes a per-mile rate rather than a total, the per-mile figure is shown, and where we multiplied it out the arithmetic is ours and labelled. None of the figures is ours, and none is taken from DAT's rate tables, which DAT's terms do not allow us to republish.
| Distance | Published totals (source, date) | Per-mile context (source, date) | What usually decides it |
|---|---|---|---|
| Under 200 mi | A-1 Auto Transport (Sept 28, 2026): $200–$1,200 for portable units and $300–$2,500 for palletized or small-to-medium units, no distance stated. | Short hotshot runs price at a flat minimum; the dated minimums, shipper-side and carrier pay, are in Hotshot rates explained. | The minimum charge, and how long the truck waits for the forklift or crane at the site. |
| 200–500 mi | Beardown's $1.50–$3.00 per mile (Feb 2026) multiplied out (our arithmetic): $450–$900 for 300 mi, $750–$1,500 for 500 mi. | Beardown (Feb 2026): hotshot $1.50–$3.00 per mile. HeavyDutyYard (Apr 2026): flatbed $2.00–$3.00 per mile under 48,000 lb. | Deadhead to the pickup, and whether a light unit can share a deck as a partial. |
| 500–1,000 mi | Central States Diesel Generators (July 2026), for 500–1,500 mi: $800–$2,500 for 20–100 kW at 1,500–5,000 lb (LTL, hotshot or flatbed); $1,500–$4,000 for 125–300 kW at 5,000–12,000 lb (flatbed). A-1 (Sept 2026): $1,500–$12,000+ for industrial units needing dedicated transport over 500–1,500 mi. | Central States (July 2026): standard flatbed $2.50–$4.50 per mile. | Delivery on day two. A site that only receives until 2 p.m., or a crane booked for the wrong morning, adds a night. |
| 1,000–1,500 mi | The same Central States and A-1 ranges cover this band (both span 500–1,500 mi); expect the longer runs to sit in the upper part of each. | Beardown (Feb 2026): hotshot $1.50–$3.00 per mile. HeavyDutyYard (Apr 2026): flatbed $2.00–$3.00 per mile. | Fuel and the return load. Three driver days and a destination with little outbound freight both show up. |
| 1,500+ mi | No generator-specific totals above 1,500 mi in the sources we opened. Beardown's long-haul rate multiplied out (our arithmetic): $2,500–$3,750 for 2,500 mi. | Beardown (Feb 2026): shipments over 2,500 mi average about $1.00–$1.50 per mile. | Per-mile rate falls, total rises. Winter over the Plains and Rockies adds days. |
Two cautions. A-1's top figure of $12,000+ covers industrial generators well past the 150 kW range on this page; the Central States size classes are the closer guide for a 20–150 kW unit. And the low end of any range assumes a unit that can be forklifted or lifted at both ends without waiting, a flexible pickup window and no tarp. Our hotshot rates guide explains how per-mile pricing, minimums and fuel interact on short runs.
Where these numbers come from
We opened seven public pages from six companies: Central States Diesel Generators and A-1 Auto Transport (two articles; generator-specific pricing), Beardown Logistics, O Trucking and HeavyDutyYard (hotshot and flatbed rates), and C.H. Robinson (what hotshot fits, no pricing). We kept only dated figures and labelled each one as what the shipper pays or what the carrier is paid. The difference matters: O Trucking writes for owner-operators, and its $1.00–$2.00 per mile is gross truck revenue, after any intermediary's margin, so a shipper's all-in price sits above it. The other pages write for shippers or equipment buyers. All of them are commercial sites with an interest in the business, and A-1's own article gives two different small-unit ranges in its body and FAQ, which we show as published. For the week-to-week direction of the flatbed market, DAT Trendlines publishes a free weekly snapshot, and our Freight Market Pulse summarises what moved each week.
What changes the price
Fees below are shipper-side charges as published by the named source; O Trucking figures are carrier pay.
- Configuration, not kW. An enclosure and a base tank can add more weight than stepping up two kW sizes. Describe the load from the spec-sheet row that matches the unit, or from a scale ticket.
- Fuel in the tank. A full base tank adds well over a ton on a 350-gallon tank (diesel is roughly 7 lb per gallon), which can push a unit off a non-CDL hotshot and may bring hazmat paperwork. Central States (July 2026) recommends shipping dry.
- Height. A unit that clears 13 ft 6 in with an inch or two to spare on the drawing may not once dunnage goes under the skid. Over-height means a lower deck, a permit or a longer route; Central States (July 2026) puts oversize permits at $50–$500 per state crossed.
- Unloading and waiting. Truck detention runs $75–$150 per hour, and crane minimums are typically four hours (Central States, July 2026). HeavyDutyYard (Apr 2026) puts equipment load and unload fees at $200–$1,500. Ask for the free time, the detention rate and any liftgate or redelivery fee to be stated in writing before the move; our freight accessorial charges guide explains each one.
- Tarping or crating. Beardown (Feb 2026) lists $100–$200 for a tarp. Open sets usually need one; most enclosed units do not.
- Urgency. Expedited work prices above standard in every source that splits it out (Hotshot rates explained). A generator needed for a storm or a failed utility feed falls on the expedited side.
- Fuel prices. EIA's survey puts the U.S. average on-highway diesel price at $6.276 per gallon for the week of October 19, 2026 (EIA Gasoline and Diesel Fuel Update; the regional table is in Hotshot rates explained). That fuel bill is the floor under every short-run price.
Worked example (illustrative arithmetic on published ranges; not a price)
The load: a 100 kW diesel standby unit, Generac SD100 class, with a Level 2 steel enclosure on a 350-gallon base tank, shipped with the tank drawn down to a residual. Per Generac's spec sheet: 4,488 lb plus 1,000 lb for the enclosure = 5,488 lb, 145 × 40 × 118 in. Distributor yard in Raleigh, NC to a clinic site near Orlando, FL, roughly 615 interstate miles. The electrical contractor has a crane booked and the pad is poured and cured.
Does it fit a hotshot? Weight: 5,488 lb against roughly 9,000–11,000 lb of non-CDL payload (Beardown, Feb 2026), or 8,000–10,000 lb on our hotshot page, leaves at least 2,512 lb of margin. Height: 36 in deck + 118 in unit = 154 in (12 ft 10 in), 8 in under 162 in. Width: 40 in against the 102 in federal limit (FHWA). Tiedowns: at just over 12 ft long it needs at least three under 49 CFR 393.110(b)(3); the aggregate working load limit must be at least 5,488 ÷ 2 = 2,744 lb (393.106(d)). Four 3/8-inch grade 70 chains rated 6,600 lb each (393.108 table), running straight from the deck to the base frame, count at half their rating: 4 × 3,300 = 13,200 lb.
The published ranges, multiplied out: Beardown's $1.50–$3.00 per mile (Feb 10, 2026, shipper-side) × 615 mi = $923–$1,845 (our arithmetic on Beardown's figure, not a price from Averstone Logistics, which does not quote shipments). For comparison, Central States' 5,000–12,000 lb class (July 2026) is $1,500–$4,000 for 500–1,500 mi on a flatbed. On the carrier side, O Trucking's standard $1.00–$2.00 per mile (Oct 2026, carrier pay) is $615–$1,230 gross to the truck.
Why a $600 price would be a warning sign: assume the truck deadheads 60 miles to the pickup, so 675 miles in total, at 9 miles per gallon loaded (an assumption for illustration, not a measured figure). That is 75 gallons; at EIA's $6.276 for the week of October 19, 2026, fuel alone is about $471, roughly 26% to 51% of the $923–$1,845 Beardown product above.
| Line | Illustrative figure | Basis |
|---|---|---|
| Published hotshot rate times 615 loaded mi | $923–$1,845 | Beardown $1.50–$3.00/mi (Feb 2026) |
| Flatbed class range, for comparison | $1,500–$4,000 | Central States, 5,000–12,000 lb, 500–1,500 mi (July 2026) |
| Fuel inside the price, 675 mi at an assumed 9 mpg | ≈ $471 | EIA U.S. average $6.276/gal, week of October 19, 2026 |
| Truck waiting 2 hours on a late crane | + $150–$300 | Central States detention $75–$150/hr (July 2026) |
| Tarp (only if it were an open set) | + $100–$200 | Beardown (Feb 2026) |
| Transit | Morning of day two | 49 CFR 395.3: 11 hours driving in a 14-hour window |
Lift points, fork pockets and tie-downs
Lift by the base, never the box
A generator's lifting points are on the base frame or the base tank, and the spec drawing or installation manual shows where. Two rules apply to almost every unit. Use a spreader bar so the slings run vertically from the lifting eyes and do not crush the enclosure roof or bend its edges. And do not use the alternator's own lifting lugs for the whole set: the Stamford alternator manual from Cummins Generator Technologies (P0/P1 installation manual) warns that those points are designed for the alternator only, not the generating set. If the unit has fork pockets in the base or tank, the forks must pass fully through them; forking under sheet metal or under a tank without pockets is how enclosures and tank walls get punctured.
How many chains: 49 CFR 393.110 and 393.106
A generator is an article of cargo, not wheeled equipment, so the minimum count comes from 49 CFR 393.110: one tiedown for an article 5 ft or shorter and 1,100 lb or lighter; two for an article 5 ft or shorter that weighs more than 1,100 lb, or for anything longer than 5 ft up to 10 ft regardless of weight; and two plus one more for each further 10 ft or fraction beyond 10 ft. A 22 kW unit on a pallet (4 ft, under 500 lb) needs at least one under (b)(1), and two straps is common practice; an enclosed 100 kW at 12 ft needs at least three, and four at the corners is normal. Separately, 49 CFR 393.106(d) requires the tiedowns' working load limits to total at least half the unit's weight, counting a tiedown run from the deck to an anchor on the unit at half its rating and one passed over the unit to the far side of the deck at its full rating. With an enclosed unit, chains go to the base-frame tie points, never over the roof.
Orientation and placement
Generators ship upright. A-1 Auto Transport (Sept 2026) notes units must stay upright to prevent fuel leaks and damage. Put the unit in the middle of the deck just ahead of the trailer axles, so the center of gravity keeps a normal share of weight on the gooseneck hitch, and block it against forward movement if the chains alone do not hold it. The industrial and electrical freight page covers center-of-gravity marking and tilt indicators for the switchgear and transfer switches that often travel with a generator; the motors and switchgear guide has the crating detail.
Protection in transit
- Doors and openings. Latch and lock the enclosure doors, and cap or tape the exhaust outlet and radiator openings so road spray and debris stay out.
- Loose parts. Manuals, keys, spare filters, the exhaust rain cap and any loose hardware go inside the enclosure in a secured box, not on the deck.
- Tarps. Open sets: tarp, shrink-wrap or crate. Enclosed units: usually not needed (A-1, July 2026), and a tarp that works loose can scuff a painted housing.
- Chain protection. Edge protectors wherever a chain touches the base or tank, and no chain or strap touching enclosure panels.
- Photos at pickup. Four sides and the roof, with the doors open once to show the interior. It is the cheapest insurance against a damage dispute at delivery.
Fuel, batteries and hazmat details
The federal rule is 49 CFR 173.220, which covers engines and mechanical equipment shipped as cargo with liquid or gaseous fuel or batteries. In summary: a flammable liquid fuel tank is drained and securely closed, with up to 500 mL of residual fuel allowed (paragraph (b)(1)(i)), except that for motor vehicle transport more fuel may remain if the tanks are securely closed ((b)(4)(i)); a propane or natural-gas fuel system must be securely closed ((b)(2)); and batteries must be securely installed, wet batteries fastened upright and protected against short circuits, or removed and packaged separately ((c)).
Whether a particular unit then needs hazmat shipping papers or markings depends on what is in it and how much. That determination belongs to the shipper: under 49 CFR 173.22(a)(1), the person offering a hazardous material must class and describe it. In practice, tell the carrier the fuel type, the tank size and how much fuel will be in it, and the battery type, and have whoever prepares the unit (the dealer, the rental yard or the decommissioning contractor) supply those details in writing. Central States (July 2026) recommends shipping dry, and A-1 (Sept 2026) recommends disclosing fuel and battery type before pickup. Disclose it before pickup, not at the dock.
Is the delivery site ready?
The truck can only drop what the site can take. Unloading is typically the customer's job unless arranged in advance (A-1, July 12, 2026), and on a hotshot the deck is about 3 ft off the ground, below a standard dock, so the unit comes off by forklift from the side or by crane from above. Before the truck is dispatched:
- Lifting machine and capacity. A forklift rated for the unit's weight at the load center of a 40- to 50-inch-wide base, with forks long enough for the pockets, or a crane sized for the weight at the radius from where the truck can park to the pad.
- Pad ready. Concrete poured and cured, anchor bolts or the stub-up pattern matching the unit's base drawing, and the path from the truck to the pad firm enough for a loaded forklift or crane outriggers.
- Access. Room for a pickup and 40-foot gooseneck, roughly 60 ft overall, to pull in, park beside the set location and leave. Gate hours, a site contact with a phone number and any check-in or escort rules.
- Overhead lines. If the crane could come within 20 ft of a power line, OSHA's crane standard requires the line to be deenergized, a 20 ft clearance to be kept, or the Table A distance for the line's voltage (10 ft up to 50 kV) to be applied (29 CFR 1926.1408(a)(2)). Look up before you book.
- Timing. Line up the crane, the electrical contractor and the delivery window on the same morning. A crane that arrives at noon for an 8 a.m. truck is four hours of waiting, billed as detention at $75–$150 an hour (shipper-side) once the free time runs out (Central States, July 2026).
Where this applies
Hotshot and flatbed freight nationwide (lower 48). Dry van truckload across North Carolina, South Carolina, Georgia, Virginia, Florida, Alabama and Tennessee. USA only — no cross-border, no drayage, no rail, no temperature-controlled freight. A standby or industrial generator moving from a distributor, a rental yard or a decommissioned site anywhere in the lower 48 is in scope for the day our registration is active. Have one coming up? Tell us about your freight, with the model, the enclosure and tank, the weight and how it will be unloaded. We answer every message within 30 minutes, Mon–Fri 8am–5pm ET, and within 6–12 hours at other times.
Sources opened for this page
- Generac spec sheets and product pages, opened October 18, 2026: SD50 (Rev. D, Sept 26, 2024), SD100 (Rev. D, June 10, 2025), SD150 (Rev. B, Nov 14, 2024), Guardian 22 kW.
- Central States Diesel Generators, How much does it cost to ship an industrial generator? (July 2026)
- A-1 Auto Transport, How to ship a generator? (updated Sept 28, 2026) and How to ship a generator (updated July 12, 2026)
- Beardown Logistics, hotshot vs. lowboy shipping cost (Feb 10, 2026)
- O Trucking, hotshot trucking rates per mile (updated Oct 4, 2026)
- HeavyDutyYard, heavy equipment shipping costs (April 2026)
- C.H. Robinson, The flatbed alternative that shows up fast (April 6, 2026)
- EIA Gasoline and Diesel Fuel Update, week of October 19, 2026; FHWA truck size and weight overview; FHWA Size Regulations report
- Regulations (Cornell LII): 49 CFR 173.220, 173.22, 393.106, 393.108, 393.110, 395.3, 29 CFR 1926.1408
- Cummins Generator Technologies, STAMFORD P0/P1 installation, service and maintenance manual
Related guides and tools
Run your own ZIP codes in the hotshot estimator, see how the number is built in hotshot rates explained, and read how hotshot shipping works. For other equipment, see the cost to ship a mini excavator, cost to ship a skid steer and cost to ship motors and switchgear guides.