Construction & Field Office Trailers for Sale
If you are looking for construction office trailers for sale near Ottawa, you need a mobile command center that can handle the grit of a jobsite and the demands of a high-speed professional office. At Big Country RV in Carleton Place, we specialize in "Field-Ready" RVs that offer a more comfortable, versatile, and cost-effective alternative to traditional modular skid offices. Whether you’re managing a new build in Kanata or overseeing a multi-year project in the Ottawa Valley, our 2026 inventory is curated for project managers who need a private workspace, a secure meeting area, and full climate control.
Our 2026 lineup features professional-grade models like the Keystone Montana 3941FO—which features a dedicated, private front office—and the Grand Design Imagine 2670MK. Unlike basic rental shacks, these units offer on-demand tankless hot water, full kitchenettes, and high-gain 5G connectivity. They are designed for rapid deployment: tow it in on Monday, level it with one touch, and have your team productive by lunch. Visit us on Highway 7 to see why local contractors are ditching the rental shacks for the permanent asset value of a Big Country RV field office.
Why Local Contractors Choose Big Country RV
We provide the structural and technical specs required for an efficient, year-round jobsite headquarters:
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Dedicated "Enclosed" Office Floorplans: We stock 2026 units with private, door-closed office spaces. Models like the Montana 3941FO offer a full-width desk, overhead cabinets for blueprints, and separate entries to keep your workspace distinct from the crew’s break area.
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Extreme 4-Season Endurance: Our "Arctic" protection packages are standard. With 35,000 BTU furnaces, 12V tank heaters, and R-30+ insulation, your team stays warm through an Ottawa February. No more frozen pipes or shivering over project plans.
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Connectivity & Starlink Prep: Every 2026 unit from Big Country RV comes Starlink-ready. We provide the roof-mounted ports and internal wiring needed to maintain a high-speed connection for site-to-office sync, even in remote rural zones.
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Aggressive "$0 Down" Business Financing: Protect your project’s cash flow. We offer $0 down financing (OAC) with business-friendly terms, making it easier to own a professional-grade office that builds equity rather than paying monthly rental fees.
Travel Trailer
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Stock #CP3090AACarleton Place, ONStock #CP3090AACarleton Place, ON
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Stock #RV19134AACarleton Place, ONStock #RV19134AACarleton Place, ON
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Stock #CPP128Carleton Place, ONStock #CPP128Carleton Place, ON
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Stock #CP3088Carleton Place, ONStock #CP3088Carleton Place, ON
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Stock #CPP106AACarleton Place, ONStock #CPP106AACarleton Place, ON
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Stock #CP2097AACarleton Place, ONStock #CP2097AACarleton Place, ON
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Stock #CP4009ACarleton Place, ONStock #CP4009ACarleton Place, ON
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Stock #CPC009ACarleton Place, ONFRESH IN ON TRADE!Stock #CPC009ACarleton Place, ONFRESH IN ON TRADE!
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Stock #CP4072Carleton Place, ONStock #CP4072Carleton Place, ON
- 16ft long
- 2,408 lbs
- Sleeps 2
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Stock #CP4090AACarleton Place, ONStock #CP4090AACarleton Place, ON
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Stock #CP4060Carleton Place, ONStock #CP4060Carleton Place, ON
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Stock #CP3094Carleton Place, ONStock #CP3094Carleton Place, ON
Field Office Trailers: Frequently Asked Questions
Is it better to buy an RV field office or rent a modular trailer?
For projects lasting longer than six months, buying an RV field office from Big Country RV often costs less than monthly rental fees. Plus, an RV is a depreciable asset that you can move from site to site without hiring a specialized transport crew. When the project is over, the resale value of a Grand Design or Keystone unit remains high, providing a much better ROI than a basic modular shack.
How do I handle power on a site with no hookups?
All our 2026 professional units come with SolarFlex or OmniConnect solar packages. For heavy-duty use (laptops, printers, and Starlink), we can upgrade your unit at our Carleton Place service center with a Lithium (LiFePO4) battery bank and a 3000W inverter, allowing you to run your entire office in silence without a generator.
Are these trailers durable enough for a dusty construction site?
Yes. We stock models with carpetless, residential-grade vinyl flooring and flush-floor slideouts that are easy to sweep and mop. Many of our units also feature Azdel composite walls, which are resistant to mold, rot, and impact—perfect for the high-traffic environment of a busy jobsite.
Deploy Your Command Center Today:
Work From the Road (Mobile Office) RVs
Big Country RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax and licensing. Motorized vehicles interest is figured at the rate of 8.99% OAC. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @613-599-3940 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.

