W-House
W-House prefab office container, 3 x 6 m with 18 sqm of usable floor area
Our main unit, built specifically for rental — the harshest use there is. A site office gets lifted, moved and reinstalled dozens of times, so it has to be tough and genuinely functional. 18 sqm for a team of four to six; single or two-storey, joinable without limit.
Available to rent or to buy
Lead time (purchase): When in stock: about 2–3 days for one unit and about 1–2 weeks for 10–20 units, depending on the season, quantity and size. If the unit is not in stock, we will give a firm delivery date in the quotation.
Expandable space. Move doors and windows. Total freedom.
For purchase
- Change the layout when your use changes
- Add units to expand
- Swap single panels so it lasts longer
For rental
- Laid out to fit your site before delivery
- Panels refreshed before the next rental
Wall panels, windows and doors slot in between the columns, so we adapt the layout to each customer’s site before delivery.
Rental units that move often need a welded structure
A rental unit moves site two or three times a year or more, dozens of times over ten years. So we weld the roof and floor bases; the unit keeps its shape after dozens of lifts.
This is not a desk calculation. We assembled units two storeys high, loaded sandbags two and three tonnes at a time and measured the deflection, testing imported houses and the Work House the same way. The result: an imported house is a good house if it stays in one place, but for rental units that move dozens of times the Work House is the better fit. That is why ECOS uses the Work House for rental.
Read more: how we differ from imported houses (comparison table)
Join on either side, build two storeys
Connection options vary by model.
Work House (WH / WL)
- Connection
- Short end and long side
- Storeys
- Two storeys
P-House
- Connection
- Long side (6 m) only
- Storeys
- Two storeys
Features
Built for rental: four-post steel frame with bolted floor and roof — takes repeated crane lifts and relocations without losing its shape
Walls, doors and windows on self-locking sliding tracks — reposition them, or replace a single damaged panel on site
Every unit is inspected and serviced at our own factory before each rental
18 sqm for four to six people; single or two-storey, joinable without limit
Usable the moment it is set down — construction sites, factories and industrial estates
Specifications
A prefabricated office unit that can be lifted and relocated, stacked one or two storeys high, and joined to any number of adjacent units. It comprises a roof, a floor and four corner columns bolted between floor and roof, so the unit can be disassembled and rebuilt. Wall panels, doors and windows run on a self-locking sliding track system, allowing their positions to be changed as required.
- Dimensions
- 3 × 6 × 2.69 m
- Usable area
- 18 m²
What to know before you rent or buy
We put this on every page because it affects your decision.
- Compare: renting the W-House for 12 months totals 54,000 THB. Building the same 18 m² at Thailand's 2026 appraisal rate for knock-down/prefab houses (median 13,900 THB/m²) comes to about 250,200 THB — before a concrete slab, and before demolition when you no longer need it.
- First-time customers pay a deposit.
- Delivery and pick-up are charged separately, by distance to your site, and shown in the quote.
- Longer rentals lower the monthly rate — tell us the period you need for a quote.
- Sale price excludes delivery and crane unloading.
- The floor is built in — it sits on level ground with no concrete slab. Most site-built prefab needs a slab first, charged separately.
- Not a permanent masonry building. With normal care it lasts 20–30 years (Thailand's 2026 appraisal table gives knock-down houses 20 years, masonry houses 50).
- The whole unit lifts and moves without dismantling — suited to leased land and projects with an end date.
- We buy back units bought from us, according to condition.
- It never ends up as scrap — move it, resell it or sell it back, unlike a building fixed to the land that has to be demolished.
- Whether a building permit is needed depends on local regulations — check with the municipality first.
Best for
Temporary site office on construction projects
Overflow office space in factories and industrial estates
Meeting room or supervisor's quarters
Frequently asked questions
- How much does it cost to rent the W-House per month?
- From 4,500 baht per month for the 3×6 m unit (18 sqm, for a team of four to six). Excludes 7% VAT. The longer the term, the lower the monthly rate. First-time customers pay a deposit.
- How soon can you deliver and install?
- About 2–3 days for one unit and about 1–2 weeks for 10–20 units, depending on the season, the number of units and their size. Tell us when you need them and we will confirm the delivery date in the quotation.
- Does the rate include delivery and installation?
- The monthly rate does not. Delivery and installation are charged by distance to your site and itemised in the quotation. We deliver, install and collect the unit at the end of the contract, nationwide.
- What is the minimum rental period?
- Rent is charged monthly. Tell us how long you need the unit and we will quote a rate for that term. The longer the term, the lower the monthly rate.
- What is included with this office unit?
- PU foam insulated wall panels, interior lighting, a ventilation fan, power outlets and an electrical control cabinet. It can be a single storey or two storeys, and units join side by side without a fixed limit. It is usable the moment it is set down, with no foundation to pour.
- What do I need to prepare on site?
- Level ground firm enough to carry the unit — no foundation needed — access for a truck and crane, and a power connection point. See the site-preparation page for details.
W-House Prefabricated Office Container
Our main unit, built specifically for rental — the harshest use there is. A site office gets lifted, moved and reinstalled dozens of times, so it has to be tough and genuinely functional. 18 sqm for a team of four to six; single or two-storey, joinable without limit.
Related products
P-House
P-House Economy Office Container
The same 18 sqm footprint as the W-House at a 2.55 m ceiling height, watertight and well insulated against heat and noise. A unit that has to survive years of rental service loses you money if the material does not last — whatever you saved on it. So on the parts that wear, the grade is not reduced: the steelwork is galvanised sheet.
3 × 6 × 2.55 m · 18 m²
Sale 99,000 THB
W-House 3x3
W-House 3x3 Compact Prefabricated Office Container
The same build as the 3 x 6 W-House in every respect — only the size differs. Made for rental: lifted, moved and reinstalled dozens of times. 9 sqm suits a supervisor’s office for one or two people, or a site with no room to spare. Single or two-storey, joinable without limit.
3 × 3 × 2.69 m · 9 m²
Rent from 3,000 THB/month