
Forbuild is a Japanese company engaged in construction and formwork projects, while also offering construction materials developed in-house.
One particularly notable product is the lightweight and strong aluminum falsework prop, Alpa. This article introduces the features of Alpa and the suitable site conditions for its use.

Alpa is well suited for material rental companies that want to reduce the risk of damage and replacement frequency, as it is designed to maintain durability even under high-frequency rental use and harsh job-site conditions.
Because of its lightweight aluminum construction, Alpa is less prone to damage from falls or collisions during work, which in turn reduces costs for repairs and re-procurement. Alpa is made from superior anti-rust materials. This enables long-term reuse and allows for high turnover while minimizing material loss.
Its stackable design enables space-saving storage and retrieval, contributing to reduced workload and increased efficiency in warehouse operations. As a distinctive material that is easy to differentiate within the rental lineup, the introduction of Alpa can be expected to enhance sales appeal.
| Weight | Alpa 45: 8.9 kg Alpa 75: 11.1 kg |
|---|---|
| Load-Bearing Capacity | • Alpa 45: Both ends: Timber batten / 14.0 kN Top end: Timber batten; Bottom end: Concrete / 19.0 kN • Alpa 75: Both ends: Timber batten / 24.0 kN Top end: Timber batten; Bottom end: Concrete / 36.0 kN |
| Material | Aluminum |
| Overall Length | Alpa 45 and Alpa 75: Minimum 2,300 mm / Maximum 3,490 mm *The length of the column can be customized according to requirements (Types: 90, 70, 60, 50, 40, 30) |
| Company Name | Forbuild Co., Ltd. |
|---|---|
| Headquarters Address | 3-14-28 Nakamiya, Asahi-ku, Osaka-shi, Osaka Prefecture |
| Official Website | https://www.forbuild.co.jp/ |
Source: https://www.forbuild.co.jp/material/alpa.php
| Unit Weight |
8.9/11.1 kg |
|---|---|
| Load Capacity |
19.0~36.0 kN* |
| Material | Aluminum |
| Max Length |
3,490mm |
*When the upper end is fixed to timber and the lower end to concrete
*Based on the ARPA 45 model.
Source: https://www.peri.ltd.uk/products/peri-up-flex-heavy-duty-prop-hd.html
| Unit Weight |
91.03~265.98kg |
|---|---|
| Load Capacity |
Up to 200 kN |
| Material | Steel |
| Max Length |
Approx.8,330mm |
https://www.peri.ltd.uk/dam/jcr:cb5a5bf0-8e05-4d70-b6fd-780f3cf91333/peri-up-flex-hd-prop.pdf
Source: https://www.altrad-coffrage.com/en/solutions/shoring/props/tetrashor.html
| Unit Weight |
Approx. 131–159 kg |
|---|---|
| Load Capacity |
Up to 400 kN* |
| Material | Hot-Dip Galvanized High-Tensile Steel |
| Max Length |
17,000mm* |
*Applicable to single-leg prop configuration onl