# Traditional Thai House (Ruean Thai)

> The raised timber or bamboo house of Thailand, with a steep gable roof and long eaves, built in distinct central, northern, northeastern and southern forms.

- URL: https://roof.wiki/traditional-thai-house/
- Topic: Roofing Around the World
- Also known as: ruean thai; Thai stilt house; kalae house
- Regions: Southeast Asia
- First published: 2026-11-02 · Last reviewed: 2026-11-02
- Cite as: "Traditional Thai House (Ruean Thai)." roof.wiki. https://roof.wiki/traditional-thai-house/

## Key facts

- **Floor height:** Generally at least 2 m (6.5 ft)
- **Roof coverings:** Thatch; terracotta tiles (kap kluay, kled tao, hang yiao); wooden tiles (pan kled)
- **Steepest gables:** Korat houses, over 50 degrees
- **Southern roof forms:** Lima/panya hip roof; Manila/blanor hip-and-gable

The traditional Thai house (*ruean thai*) is a timber or bamboo house raised on posts under a steep roof with long eaves. Its form varies by region, but nearly all versions share a shaded underfloor space, a veranda and a roof designed to shed monsoon rain and release heat.

## Raised floors

Traditional houses are generally raised at least 2 m (6.5 ft) above the ground, mainly because many villages lie beside rivers and canals that flood in the rainy season. The underfloor space (*tai thun*) is used for storage, crafts, resting in the heat of the day and sometimes livestock. Ayutthaya-period accounts record common houses raised about 3-4 ft (0.9-1.2 m). Northern houses stand lower than central ones, and southern posts rest on stone or cement bases rather than being sunk into the ground.

## Roofs by region

- **Central plains:** a high gable with a curved ridge and long eaves. The verges carry wooden boards with distinctive ends, the *ngao* and *hang pla*, and the *panlom* windbreak board.
- **North (Lanna):** lower, thicker roofs with long eaves. The gable peak may carry a *kalae*, a carved V- or X-shaped crossed board, often on the houses of wealthy families or community leaders. Coverings are terracotta tiles or wooden tiles (*pan kled*); some houses use clay tiles laid in a fish-scale pattern. The oldest northern type had roofs of woven grass over bamboo walls tied with rope.
- **Northeast (Isan):** gentler slopes, often without eaves; temporary and semi-permanent houses use baked clay tiles or thatch, sometimes with sunburst carving.
- **Korat:** Mon-influenced houses with acute gables sharper than 50 degrees.
- **South:** roofs built to withstand frequent storms. Forms include the gable, the five-ridged hipped *lima* or *panya* roof, influenced by Malay and Indonesian design and common in Pattani, and the *Manila* or *blanor* roof, a gable top over a hipped lower section, used by many Muslim households.

## Materials

Temporary houses use grass, bamboo or palm-leaf thatch, which releases heat quickly. Permanent houses use terracotta tiles in several shapes: *kap kluay* (half-cylindrical, "banana trunk"), *kled tao* (square, "turtle shell") and *hang yiao* (upturned corners, "falcon tail"). Construction is either *khrueang sab*, nail-free timber joinery that allows a house to be dismantled and moved, or *khrueang phook*, tied bamboo.

## Cluster houses

Larger households built a *ruean mu*, several gabled units on a shared raised veranda (*chaan*), each with its own roof.

## Sources

1. Ruean Thai: Understanding Traditional Thai Houses — Thailand Foundation. https://thailandfoundation.or.th/?p=530402
2. Traditional Thai house — Wikipedia. https://en.wikipedia.org/wiki/Traditional_Thai_house
3. Architecture of Thailand — Wikipedia. https://en.wikipedia.org/wiki/Architecture_of_Thailand