Today's headline of the country's good home design brings a comparative sharing of the cost of self-building: collection: a comparative analysis of the main construction costs of different structural forms of self-building
Painting and creative design
The following is a comprehensive comparative analysis of the construction costs of the various structures for the construction of their own buildings, and a compilation of creative designs based on current market developments:
Mainstream structural cost ranges (gross)
1. Brick structure
:: unit price: $800-1300/m2
:: characteristics:
60% - 70% of materials (red bricks, steel bars, cement)
• 30 per cent - 40 per cent of manual labour (waffles, carpentry)
• the construction cycle of 2-4 months, which is less seismic and suitable for the lower layer (three floors)。
Framework structure
:: unit price: $1200 – $1,800/m2
:: characteristics:
• 50 per cent - 60 per cent of materials ( 40-60 kg/m2 for steel bars)
:: 40 per cent - 50 per cent labour (specialized steel work, templates)
• three to six months of construction cycle, with a flexible space that is highly seismic and suitable for multiple layers (the 6th floor)。
3. Light steel structures
:: unit price: $1,500 to $2,500/m2
:: characteristics:
• 70% - 80% of materials (steel dragon bones, osb plates, thermogenic materials)
• 20-30 per cent manual (specialized team required for installation)
• the construction cycle of 1-2 months (including renovations), which is self-heavy and earthquake-resistant, subject to rust-proofing。
Ii. Key factors for cost variances
1. Regional differences:
• the labour costs in the developed coastal areas are 30 per cent - 50 per cent higher than in the central and western regions, and the costs of transporting construction materials are higher。
• the need to increase temperature protection in the north (an increase of $80-120 for light steel/m2) and to protect the south from tide treatment (an increase of $50/m2)。
2. Material selection:
• a 10 per cent-20 per cent increase in the cost of prohibiting the use of clay bricks (replacing cement bricks)
• metal sculptor boards (200 yuan/m2) are almost twice as expensive for light steel structures as concrete fibreboards (100 yuan/m2)。
3. Implicit costs:
• ground-based: geological differentials require special treatment (e. G., the basis of a raft) at a double price
• maintenance: bricks repair cracks (approximately $5,000) every five years and light steel requires regular rustproof inspections
• design fees: design designs are designed in such a way as to ensure that they are designed professionally and that professional drawings (50 to 20,000 yuan) are used to avoid back-to-work and save money over time。
Iii. Applicable specific recommendations
• limited budget/low floor: selection of a brick mix structure (100 m2 of approximately $100,000-150,000) to ensure that additional beam tectonic columns are added to enhance resilience to shocks。
• multi-layer/earthquake area: priority framework structure (approximately 40-6 million yuan, 200 m2) with a beam ration rate of 0. 2 per cent。
• rapid construction/environmental protection needs: light steel structures (approximately us$ 40-600,000 150 m2)。
>creative design subdirectorial note:
> 1. Set aside 10 per cent to 15 per cent of the budget for material price increases
> 2. Require the builder to provide the structure security calculator
3. Prioritize teams with rural cases to avoid low price traps. It is recommended that decisions be integrated with local building materials prices and policy subsidies (e. G., $500/m2 for assembly building) to ensure a balance between quality and cost。
