P-House
P-House economy prefab office container, 3 x 6 m
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.
Sale only — not available for rent. Rental work calls for joined rows and for two-storey builds, so the rental fleet is standardised on the W-House, which covers all three: single, joined and two-storey. The P-House itself can be joined in a row.
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
18 sqm usable area, identical to the standard unit
Watertight, with good heat and sound insulation
Base, floor and roof steel are all galvanised sheet, finished with a polyethylene-based coating
Floor and roof bolted together — fully demountable
Walls, doors and windows repositionable on a sliding track
Installed singly, connected on the long side (6 m), or built as two storeys
Specifications
The P-House is meant to be an economy unit in the true sense of the word: what is not needed is taken out, and what is actually used is kept good. It is not a matter of leaving things out to make the price look low. Which parts can be taken out and which must not — we know that from 25 years of putting these units out on rent ourselves, taking them back, and repairing them. A prefabricated office unit that can be lifted, relocated and joined to 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 and can be repositioned as required. The envelope is watertight and insulated against heat and noise. What sets the P-House apart is the steel. The base, the floor and the roof are all galvanised sheet, finished with a polyethylene-based coating. A typical low-cost unit is built from plain black steel, given a coat of rust primer and then painted over; once that paint is scratched or flakes, rust starts there. The P-House is not built that way. The zinc is in the steel from the outset — it is not something brushed on afterwards. Being an economy model and using steel of this grade are therefore not in conflict. We take cost out where you cannot see it, not out of the material. None of that is added to the price. These are the same units we put out on rent ourselves, so material that lasts lowers our own cost as well. What is good for the customer and what pays for us point in the same direction.
- Dimensions
- 3 × 6 × 2.55 m
- Usable area
- 18 m²
What to know before you rent or buy
We put this on every page because it affects your decision.
- 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
Projects deploying several units simultaneously
Short-term site offices
Document storage or crew rest rooms
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.
Related products
W-House
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.
3 × 6 × 2.69 m · 18 m²
Rent from 4,500 THB/month
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