The use of Huaqisong construction project

Due to its high load-bearing capacity and weight ratio, Douglas fir is mainly used in construction projects as glued laminated beams and building timber. Among them, the widespread use of wooden blocks in construction. Building wooden blocks are commonly known as mouth materials. Mainly in 35 * 85 specifications. There are also different specification requirements based on regional differentiation. Among them, the majority in Hangzhou are 39 * 89, and there are also 5 * 10 specifications. Sawboards are usually processed into outdoor landscape wooden boards, which have undergone anti-corrosion treatment and are the preferred material for outdoor wooden flooring

Usage of regular sizes of Douglas fir in China

The large-scale development of real estate in China has led to towering buildings everywhere, with the demand for wood and materials constantly increasing. This has led to a shortage of wood materials domestically, while the use of foreign wood has resulted in inconsistent sizes of building wood and engineering materials used domestically. From the wooden frame used under the house structure template in 1996, which was 50 × 100 and 40 × 90 (unit: MM), to today's sizes of 32 × 82, 35 × 85, 40 × 60, 40 × 70, 40 × 80, and 44 × 64 (unit: MM), it can be seen that due to the shortage of materials and the rise in prices, the size of materials has shrunk, leading to inconsistent specifications and models.

Nowadays, the origin of materials in foreign countries is different, and the materials are also similar. Some materials from different origins are fragile, prone to breakage, have insufficient grip and sinking force, and the resulting size inconsistencies are also obvious. However, generally speaking, the conventional sizes on the market include 35 × 85, 37 × 87, 40 × 90, 45 × 60, 60 × 60, 40 × 70, 40 × 60, 38 × 88, 50 × 70, etc., and lengths include 2 meters, 3 meters, 4 meters, 2.5 meters, etc.

It is not a commercial building or a residential building. Generally, flat buildings do not use wooden formwork, but instead use beam base plates with sizes including 20 × 250, 20 × 300, 25 × 200, 25 × 250, 23 × 250, 23 × 300, 30 × 250, 30 × 300, etc., with lengths of 3 meters and 4 meters.

The general dimensions of engineering sleepers include: 100 × 100, 200 × 200, 300 × 300, 400 × 400, etc., with lengths of 2.5 meters, 3 meters, and 4 meters.

The general dimensions of engineering springboards include: 40 × 250, 40 × 300, 50 × 250, 50 × 300, etc.

The general dimensions of furniture materials include: thickness 18, 20, 23, 25, 30, 45, width 75, 95, 100, 120, 140, 150, 175, 235, etc.