Quick Answer: Double Wide Office Trailer
A double wide office trailer is two single-wide halves built to be set side by side and joined on site. The standard 24×60 gives 1,440 square feet, enough for about 10 to 15 people with a conference room and private offices. Rent runs about $800–$1,800 a month, and new units sell for about $55,000–$75,000 or more, used ones for $25,000–$50,000. Delivery and setup cost more than for a single-wide, because two oversize halves arrive and must be joined, sealed and leveled.
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Double Wide Office Trailer: Layouts, Setup and Cost
A double wide office trailer is what teams order when a single-wide runs out of room. The meetings have moved to the tailgate, the project manager takes calls in a truck, and nobody has a quiet desk. A permanent building would fix that, but not this season. Two halves joined on site can.
This page is for contractors, facility managers and business owners who already know they need more than a single-wide. It explains how a double wide office trailer is built and set, which floor plans work, what one costs to rent or buy, and what the pad, utilities and permits involve. It also covers when two single-wides or a modular building is the better call.
What a Double Wide Office Trailer Is
A double wide office trailer starts as two single-wide sections built in a factory to be joined. Each half has an open side along its length, closed off for the road. Each travels on its own load. On site, a crew sets the halves side by side and fastens them together along the center seam, often called the mate line.
Once the seam is sealed on the roof and finished inside, the two boxes read as one room. That is the whole point. A single-wide office is a corridor with desks along it. A double wide office trailer has a 24-foot-wide interior, so rooms can open off both sides of a center hallway.
The trade-offs come from the same design. Two halves mean two transport loads, a bigger level pad and more work on delivery day. A double-wide office trailer is also harder to move mid-project than a single-wide you can hook up and tow. Plan to leave it in one spot.
Double Wide Office Trailer Dimensions and Capacity
The standard size is the 24×60: two 12×60 halves, 1,440 square feet in all. On this site's planning figures it holds 10 to 15 people. That is about twice a 12×60 single-wide, which holds five to eight. Some suppliers build double wide office trailers in other lengths too. Floor area is still width times length, and capacity scales with it.
| Unit | Square Feet | Typical Capacity | What Fits |
|---|---|---|---|
| 12×60 single-wide | 720 | 5–8 people | One or two private offices, open area, small meeting space |
| 24×60 double-wide | 1,440 | 10–15 people | Reception, several private offices, conference room, break area, restrooms |
| Multi-unit complex | 2,000+ | 15+ people | Several units linked for departments, training or large project teams |
Treat the low end of each capacity range as comfortable and the high end as full. Private offices and restrooms take floor that desks would otherwise use. A plan with six enclosed offices holds fewer people than an open bullpen of the same size.
Listed sizes are nominal, and they often include the hitch. Ask for the box dimensions, the transport dimensions and the interior ceiling height before you plan the site. Our office trailer sizes guide covers every size from an 8×20 up, with dimensions and the single-wide versus double-wide comparison.
Double-Wide Floor Plans: Four Common Layouts
The layout decides how many people can actually work inside. Most double wide office trailer layouts are a variation on four patterns. Pick the one that matches how your team spends the day, then ask suppliers for drawings of units built that way.
| Layout | How It Is Arranged | Suits |
|---|---|---|
| Center hallway | A hallway runs the length of the mate line, with private offices opening off both sides | Teams where most people need a door |
| Open bullpen | Most of the floor left open for workstations, with two or three enclosed offices at the ends | Estimators, schedulers and admin staff at desks |
| Conference-centered | A large meeting room in the middle, offices and a plan table at each end | Project headquarters with regular owner and subcontractor meetings |
| Split use | One end as offices, the other as a break room, training space or reception | Sites that feed crews, run orientations or receive visitors |
Three choices shape any of these plans. First, count who truly needs a private office. A project manager on calls with owners usually does. Someone reading drawings all day often does not.
Second, decide on restrooms. They take floor space, need water and a waste connection or holding tank, and put a unit toward the top of its price range. Third, decide where visitors enter. A reception area by the main door keeps them out of the workspace.
Check the Center Wall on the Drawing
The mate line limits the layout. Where the halves join, the plan may need posts or a wall to carry the roof, so a wide-open room across both halves is not always possible. Ask each supplier to mark those points on the floor plan before you compare prices.
Doors and windows matter as much as walls. A door in the middle of a long wall splits the floor in two. Windows on the side facing the work give a superintendent a view without walking out. Note both on every drawing you request.
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Double Wide Office Trailer Cost to Rent or Buy
Size sets the price first, and condition sets it second. The table shows the planning ranges this site uses for a 24×60 double wide office trailer, next to a 12×60 single-wide for comparison. Rent is per month, before delivery, setup and add-ons.
| Unit | Monthly Rent | Buy Used | Buy New |
|---|---|---|---|
| 12×60 single-wide | $450 – $900 | $18,000 – $38,000 | $35,000 – $55,000 |
| 24×60 double-wide | $800 – $1,800 | $25,000 – $50,000 | $55,000 – $75,000+ |
| Multi-unit complex | $1,500 – $4,000+ | Priced per unit | Priced per unit |
Other double-wide sizes are quoted by size, term and market. Restrooms, extra private offices, upgraded finishes and a newer HVAC system push any unit toward the top of its range. So does a short, month-to-month rental term.
The unit is only part of the bill. The one-time charges below come on top, and a double wide office trailer costs more to deliver and set than a single-wide. Two halves arrive, and the crew has to join, seal and level them on site.
| Add-On | Typical Range | Notes |
|---|---|---|
| Delivery and setup | $1,000 – $5,000 | Distance, site access, blocking and leveling; a double-wide costs more than a single-wide |
| Pickup | $1,000 – $3,000 | Billed when a rental leaves the site |
| Steps | $200 – $600 | Per set; nearly always needed |
| ADA ramp | $300 – $800 | For an accessible entrance |
| Electrical hookup | $150 – $1,000 | Distance to the panel or temporary power pole |
Worked Example: A 24×60 Rented for 12 Months
This is an illustration built from the ranges above, not a quote.
Rent: $1,200 × 12 months = $14,400
Delivery and setup: $4,500
Steps, two sets at $400: $800
ADA ramp: $600
Electrical hookup: $800
Pickup: $2,500
Total for the year: $23,600
Permits, plumbing connections and pad work are priced locally, so get them quoted with your site work. Our office trailer rental guide covers monthly rates, lease terms and every add-on in more detail.
Renting vs. Buying a Double-Wide
Buying pays off only when the unit stays busy long enough. The quick test is the purchase price divided by the monthly rent for the same size. Then add insurance, maintenance and storage, which renters do not pay.
The rental guide runs that math for a 12×60. On its numbers, owning starts to cost less than renting after roughly 3½ years for a used unit and 5 years or more for a new one. A double wide office trailer adds one more cost to owning. Every move means two loads, another join and another seal.
- Rent when the project runs a year or two, the site will change, or you have nowhere to store the halves afterward.
- Buy when the office will stay in one place for years, or your company always has a double wide office trailer deployed somewhere.
- Buy used when budget matters more than finish, and have the roof, floor, HVAC and mate line inspected first.
Used double wide office trailers carry extra risk at the seam. A unit that has been split and rejoined several times may show leaks or uneven floors along the center wall. Our guide to office trailers for sale lists what to check on a used unit and what to ask a seller.
Delivery and Setup: Joining the Two Halves
Setting a double wide office trailer is a small construction job, not a drop-off. A single-wide can be backed in, blocked and leveled. A double-wide adds a join, a seal and more leveling. Knowing the order of work helps you have the site ready.
Width is the first hurdle. The Federal Highway Administration says that on the National Network, no state may impose a width limitation of more or less than 102 inches. Each 12-foot half is 144 inches wide. So each half generally travels as an oversize load under state permits, with rules, escorts and travel hours set by the state and route.
How a Double-Wide Gets Set
- Route and site check: the supplier confirms gate width, turns, overhead wires and ground that will carry a loaded truck
- Pad ready: a level, compacted and drained base marked for the full 24-foot footprint plus steps
- First half set: placed, blocked and leveled on piers or blocking
- Second half set: pulled alongside, aligned at the mate line and leveled to match
- Halves joined: fastened together, the roof seam sealed, the interior seam finished
- Tied down: anchors and tie-downs matched to the design loads where the unit sits
- Finished outside: skirting, steps, a ramp if needed, then utility connections
The join is where problems start. A mate line set poorly leaves you with leaks and a floor that is not level. Doors that stick along the center wall are an early sign. Walk the seam with the crew before they leave.
Inspect the Mate Line Before You Sign Off
Look along the ceiling and floor where the halves meet. Check for gaps, cracked trim, stains and a ridge you can feel underfoot. Ask to see the roof seam, then run the HVAC in both halves. Note anything wrong on the delivery paperwork before the crew leaves.
Double-wides take longer to set than single-wides, and utilities are usually the real bottleneck. Line up your electrician and any plumber well ahead of move-in. The rental guide covers typical delivery lead times.
The Pad, Utilities and Site Access
Your site needs to be ready before either half arrives, or you pay for a wasted trip. A double wide office trailer needs a pad twice as wide as a single-wide on the same length. It also needs room around it for steps, a landing and possibly a ramp at every door.
A compacted gravel pad is a common base on construction sites. Grade it so water drains away rather than pooling under the unit. Ask the supplier what base, clearances and pier spacing they require. Soft or sloped ground may need more work than gravel.
Power comes next. Ask for the panel rating and heating and cooling load of the exact unit. Your electrician then sizes the service and runs a proper feed. Extension cords are not a feed.
Restrooms need water and a waste connection, either a sewer tie-in or a holding tank. On a jobsite, a trailer restroom is only one way to meet OSHA. Under 29 CFR 1926.51, one toilet facility is required for 20 or fewer employees. Job sites without a sanitary sewer need chemical, recirculating or combustion toilets or privies, unless local codes prohibit them.
Plan internet before the first meeting. A cellular hotspot is quick where coverage is good, while a wired line needs lead time. Our construction site office trailers guide covers placement, jobsite power, security and OSHA rules in depth.
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Permits, Codes and Accessibility
Plan on a permit for a double wide office trailer. Rules are set by your city or county and depend on how the unit is used, how long it stays and whether the public visits. Some places cover a jobsite office under the project's building permit. Others want a separate temporary structure permit, an electrical permit or an inspection before anyone moves in.
Local building codes are commonly based on models from the International Code Council, whose International Building Code now includes language specifically addressing relocatable buildings. Local amendments vary. Your building department has the final word.
Many states also run a modular or industrialized building program, with plan review, in-factory inspection and a state label. Rules vary by state. The HUD code covers manufactured homes only, so it does not apply to a commercial office unit. Keep the label on both halves, because an inspector may ask for it.
Steps need attention on a construction site. OSHA's stairway rule, 29 CFR 1926.1052, requires a platform where a door opens directly onto a stairway. The door swing cannot reduce that platform's effective width below 20 inches. Stairways with four or more risers, or rising more than 30 inches, need at least one handrail and a stairrail along each unprotected side.
Accessibility can apply too. The ADA Title III page lists office buildings as examples of commercial facilities, which need to comply with the ADA Standards for Accessible Design. When businesses build or alter facilities, they must make them accessible. If clients, applicants or the public will visit, ask your building department how that applies to your placement.
Double-Wide, Two Single-Wides or a Modular Building?
A double wide office trailer is not the only way to get 1,440 square feet. Two 12×60 single-wides cover the same floor. A multi-unit complex goes bigger, and a permanent modular building lasts longer. The right answer depends on headcount, how long you stay and how the team works.
| Option | Monthly Rent | Buy New | Best Fit |
|---|---|---|---|
| One 24×60 double-wide | $800 – $1,800 | $55,000 – $75,000+ | One team under one roof with a real conference room |
| Two 12×60 single-wides | $900 – $1,800 for both | $70,000 – $110,000 for both | Two groups that work apart, or a site that may shrink |
| Multi-unit complex | $1,500 – $4,000+ | Priced per unit | More than 15 people or several departments |
| Permanent modular office | Quoted by project | $50 – $350+ per sq ft, plus site work | An office you will keep for many years |
Two single-wides rent for about the same as one double-wide and cost more to buy. Each one is quicker to set, and you can return one when the team shrinks. You lose the shared conference room and walk outside between them. Choose the double-wide when the team meets daily.
Permanent modular offices are priced by the square foot. The grades run about $50–$100, $100–$200 and $200–$350 or more per square foot, and site work commonly adds 30–50% on top. At the basic grade, 1,440 square feet is $72,000–$144,000 before site work. With 30–50% added, that becomes about $93,600–$216,000. Our portable office building cost guide compares trailers, skid-mounted units and permanent modular offices side by side.
A container office is another route for a smaller, tougher space. Finished basic 40-foot container offices run about $18,000–$30,000. Our shipping container office guide covers conversions and what drives their cost.
Frequently Asked Questions
It is two single-wide sections built to be joined. Each half travels on its own load, and on site the crew sets them side by side, fastens them along the mate line and seals the seam. The result is a 24-foot-wide office with rooms off a center hallway.
The standard size is 24×60, made of two 12×60 halves, for 1,440 square feet. Some suppliers build other lengths. Listed sizes often include the hitch, so ask for box, transport and interior dimensions before you plan the site.
A 24×60 double-wide typically holds 10 to 15 people. Private offices, restrooms and a large conference room lower that number, while an open bullpen layout holds more.
A 24×60 rents for about $800–$1,800 a month. New units sell for about $55,000–$75,000 or more, and used ones for about $25,000–$50,000. Delivery and setup run $1,000–$5,000, and a double-wide costs more to set than a single-wide.
Renting usually wins for a project of a year or two. On the site's rental math for a 12×60, owning costs less after roughly 3½ years used and 5 years or more new, before insurance, maintenance and storage. A double wide office trailer adds two loads and a rejoin every time it moves.
Each half usually travels as an oversize load, because it is wider than the federal 102-inch limit. The crew levels the first half, sets the second beside it, fastens and seals the mate line, ties the unit down, then adds skirting, steps and utility connections.
It needs a level, compacted and drained base for the full 24-foot width, plus room for steps or a ramp at each door. A compacted gravel pad is common on construction sites. Ask the supplier for the base and pier spacing they require.
Usually, yes. Rules are set by the city or county and depend on use, duration and public access. Some cover a jobsite office under the project permit, while others require a temporary structure permit or an inspection before occupancy.
Two 12×60 single-wides give the same 1,440 square feet at similar rent and cost more to buy. They suit two groups that work apart or a site that may shrink. A double wide office trailer suits one team that meets daily and needs a conference room.
Choosing Your Double-Wide
A double wide office trailer earns its keep when a team outgrows a single-wide but the need is not permanent. Start with three numbers: peak headcount, the rooms you need and the space on your site. Then choose the layout, and ask every supplier for a floor plan that shows the mate line.
Price the whole job, not just the rent. Get delivery, setup, steps, hookups and pickup in writing, and confirm the permit path with your building department. With that done, the unit that arrives will fit the team, the pad and the budget.
Related Resources
- Office Trailer Sizes: Dimensions, Layouts and Capacity
- Office Trailer Rental: Monthly Costs and Lease Terms
- Office Trailers for Sale: New and Used Buyer's Guide
- Construction Office Trailer Guide: Setup, Safety and Cost
- Portable Office Buildings: Cost and Options
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