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Freight Guide
How to Ship Heavy Construction Equipment
Whether you're moving a drill rig, a crawler crane, an excavator, or a full job site's worth of precast — the process has more moving parts than most project managers expect. This guide covers every step, from measuring your load to clearing your last state line.
📋 15-minute read✓ Updated June 2026✓ By Perpetual Enterprise LLC — Licensed Freight Brokerage
Before you call a broker or carrier, you need accurate numbers. Most equipment shipping problems — wrong trailer, surprise permit costs, last-minute delays — trace back to inaccurate measurements at the quoting stage.
Get these four numbers for your equipment in transport configuration (not operating configuration):
Overall length — from the rearmost point to the front, including any attachments secured to the load
Width — at the widest point, including tracks, wheels, or any protruding components
Height — from the ground to the highest point when loaded on the trailer (add the trailer deck height)
Weight — operating weight from the manufacturer spec sheet, or have it weighed on a certified scale
Pro Tip
Use the manufacturer's spec sheet for dimensions. Measure twice, because permits are issued for specific dimensions — any discrepancy at a weigh station means fines and potential impoundment. Field-measured machines often differ by 2–4 inches from spec, which can push a load into a different permit class.
Federal Dimension and Weight Thresholds
These are the federal limits that apply on interstate highways. Exceeding any of these without permits is illegal in all 48 states:
Measurement
Federal Legal Limit
Exceeding This Requires
Gross vehicle weight
80,000 lbs
Overweight permit
Single axle weight
20,000 lbs
Overweight permit
Tandem axle weight
34,000 lbs
Overweight permit
Width
8 ft 6 in
Oversize permit
Height
13 ft 6 in
Oversize permit
Overall length
Varies by state (typically 65–80 ft)
Oversize permit
Important
Height on the permit means height with the load on the trailer. A 10-foot excavator on a lowboy trailer with a 2-foot deck height = 12 feet total. Always add deck height to your equipment height.
Step 2: Choose the Right Trailer Type
Matching your equipment to the right trailer type is the single most important logistics decision you'll make. The wrong trailer means the equipment won't fit, permits won't be issued correctly, or you'll pay for unnecessary capacity.
Trailer Type
Deck Height
Typical Capacity
Best For
Flatbed (48' / 53')
~5 ft
Up to 48,000 lbs
Steel beams, pipe, machinery, precast panels under 8'6" wide
Step Deck / Drop Deck
Upper: ~5 ft / Lower: ~3.5 ft
Up to 48,000 lbs
Equipment 10–11 ft tall; needs lower deck than flatbed provides
RGN — Removable Gooseneck
~2–2.5 ft
40,000–150,000+ lbs (multi-axle)
Wheeled/tracked equipment that drives on: excavators, bulldozers, drill rigs
Lowboy / Double Drop
~1.5–2 ft
40,000–80,000 lbs
Very tall equipment; cranes, large excavators, vertical machinery
Multi-Axle Heavy Haul (9, 11, 13-axle)
Varies
80,000–600,000+ lbs
Superloads, mining equipment, large transformers, major components
Double Drop Extendable
~1.5–2 ft
Up to 80,000 lbs
Long and heavy equipment; extended reach cranes, large beams
The RGN Explained — When Your Equipment Has to Drive On
RGN stands for Removable Gooseneck. The front section of the trailer — the gooseneck — physically detaches, dropping the front to ground level and creating a loading ramp. This is essential for any equipment that:
Has tracks or rubber tires and cannot be lifted by crane
Is too heavy or awkward to crane safely onto a standard deck
Needs to drive off at the destination without crane equipment present
Most tracked construction equipment — excavators, bulldozers, pile driving rigs, ABI Mobilrams, Bauer BG-series drill rigs, Liebherr LRBs — ships on RGN trailers. The broker arranges the right axle configuration based on weight distribution requirements.
When You Need Multi-Axle Heavy Haul
If your equipment weighs more than 80,000 lbs gross, you need more axles to spread weight and stay within per-axle limits. Here's the rough math:
9-axle: up to approximately 130,000–150,000 lbs gross
11-axle: up to approximately 160,000–200,000 lbs gross
13-axle: up to approximately 200,000–250,000+ lbs gross
Above approximately 200,000 lbs, loads are classified as superloads in most states and require additional engineering review, bridge analysis, and longer permit lead times.
Not Sure Which Trailer You Need?
Give us your equipment make, model, and approximate weight — we'll tell you exactly what's required and get you a quote the same business day.
Oversize and overweight (OS/OW) permits are issued by individual states — which means a load crossing six states needs six separate permits. Each state has its own rules on routing, travel times, and escort requirements. Managing this is one of the core things a good freight broker handles for you.
Types of Permits
Single-trip oversize permit: The most common. Issued for one move in one state. Required when any dimension exceeds legal limits.
Overweight permit: Required when gross weight exceeds 80,000 lbs or any axle limit is exceeded. Often obtained alongside an oversize permit.
Superload permit: Applies to extremely heavy loads — typically 150,000 to 200,000+ lbs depending on the state. Requires route surveys, bridge engineering analysis, and in some cases a state police escort. Lead times of 1–3 weeks are common.
Annual or blanket permits: Available in some states for repeat trips in the same lane. Cost-effective for companies moving the same equipment type regularly.
Pilot Cars and Escorts
Pilot cars — the escort vehicles that travel ahead of or behind oversize loads — are required under specific conditions that vary by state. Common thresholds:
Width over 12 feet: Usually requires one pilot car ahead
Width over 14 feet 6 inches: Typically requires pilot cars front and rear
Superloads: Require multiple pilot cars and often law enforcement escorts
Night travel restrictions: Many states restrict OS/OW loads to daylight hours only; some restrict weekend travel
Your freight broker should handle pilot car coordination as part of the move. Reputable brokers include this in the quote rather than billing it as a surprise after the fact.
Permit Lead Times
Permit Type
Typical Lead Time
Notes
Standard oversize (non-superload)
1–3 business days
Most states offer online permitting
Complex multi-state route
3–5 business days
Routing and clearance verification required
Superload (150,000–400,000 lbs)
1–3 weeks
Bridge analysis, route survey, LE escort coordination
Extreme superload (400,000+ lbs)
3–8 weeks
Full engineering study, special routing
Step 4: Preparing Your Equipment for Transport
Improperly prepared equipment causes damaged loads, failed DOT inspections, and liability disputes. Here's what to do before your carrier arrives:
Retract all booms, masts, and arms to their minimum transport configuration
Fold or remove any protruding attachments — buckets, augers, clamshell units — if they add to width or height
Secure all moving parts — booms pinned, counterweights locked, turntable secured if applicable
Check fluid levels: Some states restrict transport of equipment with certain fluids above specified levels. Drain fuel to 50% or less for very heavy loads to reduce weight
Remove loose items — tools, rigging, chains, mats — from the equipment cab and deck
Clean mud and debris from tracks and undercarriage. Several states require this by law; others issue fines for debris left on highways
Disconnect the battery or confirm the ignition is locked out
Document the equipment condition with photos on all four sides before loading. This protects you in the event of any transport claim
Confirm whether the equipment is self-propelled and whether it can drive onto an RGN, or whether a crane is required for loading
Pro Tip
If your equipment requires crane loading, coordinate the crane at origin and destination before the truck arrives. Carrier waiting time is billed by the hour — typically $75–150/hour — and a missing crane at delivery can add significant cost.
Step 5: Getting Quotes and Choosing a Broker
Once you have your dimensions, weight, origin, destination, and date needed, you're ready to get quotes. Here's what to have ready:
Operating weight (from spec sheet) or certified scale weight
Whether equipment is self-propelled or needs crane loading
Date needed (or date range)
Any known constraints (weekend blackout, nighttime-only, project deadlines)
What to Look for in a Freight Broker
Not all freight brokers are created equal when it comes to heavy haul. Ask these questions before committing:
Are they licensed and bonded? A licensed freight broker holds a FMCSA Broker Authority (MC number). Ask for it.
Do they specialize in heavy haul? A general freight broker who occasionally moves construction equipment is not the same as one who does it daily. Equipment-specific knowledge — knowing a Bauer BG-series from a Soilmec, understanding FDOT corridor constraints — matters when things get complicated.
Do they include permits and escorts in the quote? Many brokers quote the line-haul only and add permits and escorts later. Ask for an all-in number.
What's their carrier vetting process? All carriers in a reputable broker's network should be FMCSA-compliant, fully insured, and checked for safety ratings before dispatch.
Do they have 24/7 availability? Construction doesn't run 9-to-5. A broker who goes dark after hours is a problem when your rig misses a delivery window.
Perpetual LLC: Licensed, 24/7, All-In Quotes
We're a licensed and bonded nationwide freight brokerage. 13-axle heavy haul to sprinter van. All 48 states. Permits included in the quote, no hidden fees, same-day response.
Here's a quick reference for how common heavy construction equipment typically ships:
Equipment
Typical Trailer
Permit Likely?
Notes
Excavator (20–50T)
RGN / Lowboy
Usually yes
Boom must be removed or folded; tracks add width
Excavator (50T+)
Multi-axle RGN
Yes — oversize/overweight
May require superload permit
Bulldozer (D6–D10)
RGN / Lowboy
Often yes (width)
Blade must be removed or secured
Crawler Crane (any size)
Multi-axle RGN + additional trailers for components
Yes — multiple permits
Boom, counterweights, and carbody ship separately
Drill Rig (ABI, Bauer, Liebherr)
RGN / Multi-axle RGN
Yes
Mast retracted; may require escort
Pile Driver
RGN or Lowboy
Usually yes
Hammer ships separately if too heavy
Mobile Crane (100–500T)
Multi-axle + component trailers
Yes — superload likely
Plan 2–4 weeks for superload permitting
Generator / Transformer
RGN or Lowboy (heavy haul)
Depends on weight
Center of gravity matters; rigging plan required
Precast Bridge Beams
Lowboy or Extendable
Usually yes (length)
AASHTO/FIB beams often exceed 100–150 ft
Steel Sheet Pile Bundles
Flatbed or Step Deck
Sometimes (width/length)
Bundle width and overhang drive permit need
Wind Turbine Blades
Specialized extendable (blade runner)
Yes — superload common
Rear steering axle required; specialized move
Mistakes to Avoid
Using operating dimensions instead of transport dimensions. A drill rig with the mast raised is 60 feet tall. In transport configuration it may be 14 feet. Always get the collapsed/retracted dimensions.
Booking the cheapest carrier without vetting. Insurance gaps, unqualified drivers, and equipment that doesn't meet spec can leave you on the hook for damaged loads with no recourse.
Not confirming site access at origin and destination. A 13-axle truck cannot make a U-turn. Low bridges, soft ground, or narrow gates discovered at delivery can cost days and significant money.
Waiting too long to book. Permits take time. Superload permits can take weeks. If you have a project deadline, start the freight process 3–4 weeks early for complex moves.
Not getting permit costs in the quote. Some carriers quote line-haul only. Permits, escorts, and fuel surcharges can add 30–60% to the base rate. Always ask for all-in pricing.
Skipping the condition documentation. Photograph your equipment before it's loaded. If damage occurs in transit, clear before/after documentation is the only way to enforce a freight claim.
Assuming the broker handles loading. The shipper is responsible for loading unless otherwise agreed. Confirm who provides the crane or operator if the equipment can't drive onto the trailer.
Frequently Asked Questions
The most common trailers are flatbed (48/53 ft), step deck, RGN (removable gooseneck), lowboy/double drop, and multi-axle heavy haul trailers. The right choice depends on your equipment's dimensions and weight. Equipment wider than 8'6", taller than 13'6", or heavier than 80,000 lbs gross requires oversize or overweight permits in every state the shipment crosses.
In most cases, yes. Any shipment exceeding 8'6" wide, 13'6" tall, approximately 65 feet overall length, or 80,000 lbs gross weight requires oversize or overweight permits in each state it passes through. Loads over approximately 150,000–200,000 lbs are classified as superloads and require engineering review and special routing.
Standard oversize permits typically take 1–3 business days. Superload permits (loads over 150,000–200,000 lbs) can take 1–3 weeks due to required route surveys and engineering review. Plan ahead — a missed delivery caused by permit delays is expensive and avoidable with early booking.
Costs vary widely based on equipment weight, dimensions, distance, permit complexity, and whether escorts are required. Standard flatbed loads typically run $2–6 per loaded mile. Heavy haul with permits and escorts ranges from $8–25+ per mile. Contact us at info@perpetual.llc for a same-day all-in quote.
You need: origin and destination (city, state, zip and any site access notes), equipment make and model, transport dimensions (length, width, height in transport configuration — not operating), weight from the spec sheet, date needed, and whether the equipment is self-propelled or must be craned onto the trailer.
RGN stands for Removable Gooseneck. The front section detaches to create a loading ramp so wheeled or tracked equipment can drive on and off under its own power — or be positioned by crane onto the lowered deck. RGN trailers are essential for excavators, bulldozers, drill rigs, pile drivers, and cranes that cannot be safely craned onto a standard flatbed deck.
Yes. Perpetual Enterprise LLC is a licensed and bonded freight brokerage serving all 48 contiguous states. We handle everything from the carrier selection and dispatch to permitting, pilot car coordination, and law enforcement escort scheduling. Same-day quotes for any load type. Contact us at info@perpetual.llc or request a quote online.
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Licensed brokerage. 13-axle heavy haul to sprinter van. All 48 states. Permits included, no hidden fees, same-day response.