Which material is the cheapest for fold house?

According to reference information, PVC (polyvinyl chloride) material is usually the cheapest choice among common folding house materials.
Comparison of main material prices
PVC material: relatively low price, with advantages such as light weight, moisture resistance, and thermal insulation. Its cost per square meter is about 20-50 yuan, which is one of the lowest prices in the market.
Aluminum alloy material: environmentally friendly and durable, but priced higher than PVC.
Light steel structure: high strength and good seismic resistance, but the material cost is relatively high (such as 300-600 yuan per cubic meter for lightweight bricks), and the price of the folding box house foundation is about 4500 yuan/set.
Glass/Wood Material: Beautiful but costly, such as glass bricks priced at 20 yuan per piece.
Choose Suggestions
If the budget is limited and the demand is for temporary use, PVC material is the most cost-effective choice. However, it should be noted that its sound insulation effect is poor and prone to aging, making it suitable for short-term or humid environments. If long-term use or higher performance is required, light steel structures (such as folding box houses) can be considered.