How to calculate the square footage of a decoration company? Comprehensive analysis of decoration area calculation methods
During the renovation process, area calculation is one of the most important issues for owners. Quotations from decoration companies are usually in square meters, but different companies may calculate area differently. This article will analyze in detail the area calculation methods commonly used by decoration companies to help owners avoid being "routine".
1. Basic principles for calculating decoration area
The calculation of decoration area is mainly divided into three types: building area, apartment area and actual decoration area. Here are their differences:
| Calculation method | definition | Contains content |
|---|---|---|
| Building area | The area on the real estate certificate | Apartment area + common area |
| Inner area | actual usable area | Indoor net area + wall area |
| Actual decoration area | actual construction area | Floor area + wall area + roof area |
2. Area calculation methods for different decoration projects
Decoration companies usually use different calculation methods based on different construction projects:
| Decoration project | Calculation method | Remarks |
|---|---|---|
| Floor paving | Net area calculation | Deduct the area occupied by fixed furniture |
| wall treatment | Expand area calculation | Half the area of doors and windows is deducted |
| Ceiling project | Projected area calculation | Calculated based on actual ceiling area |
| Hydropower transformation | Calculate by point or area | Different companies have different calculation methods. |
3. Common decoration area calculation traps
1.Repeat area calculation: Some companies will calculate the same area multiple times, such as the overlapping portion of the wall and floor.
2.falsely reported area: Deliberately overreporting the construction area, especially in hidden projects such as hydropower renovation.
3.Fuzzy Computing Standard: The calculation method is not clearly informed, and fees are increased later for various reasons.
4.Unreasonable deduction standards: The deduction ratio for door and window area is too low, resulting in an inflated wall area.
4. How to avoid the decoration area calculation trap
1.Measure in advance: Before signing a contract, measure the actual area with the decoration company.
2.Clarify calculation method: Specify the area calculation standards for each project in detail in the contract.
3.Itemized quotation: Request the decoration company to provide a detailed itemized quotation.
4.Keep measurement data: Take photos to record the measurement process as evidence for later disputes.
5.Multiple comparisons: Consult 3-5 decoration companies and compare their calculation methods and quotations.
5. Frequently Asked Questions about Decoration Area Calculation
Q: How to calculate the balcony area?
A: Enclosed balconies are calculated based on the full area, and unenclosed balconies are calculated based on half area.
Q: Does the area of bay windows count?
A: Bay windows with a height less than 2.1 meters are not included in the decoration area.
Q: How to calculate the area when walls are demolished and rebuilt?
A: Calculated based on the actual construction area, demolition and new construction will be priced separately.
Q: Is there a special calculation method for kitchen and bathroom area?
A: Some companies will price the kitchen and bathroom separately, which needs to be confirmed in advance.
6. Suggestions on calculation of decoration area
1. Choose a company that calculates based on actual decoration area to be more transparent.
2. For hidden projects such as water and electricity renovation, it is recommended to choose point-based pricing.
3. For special room types such as duplexes and villas, special attention should be paid to the area calculation method.
4. The area calculation for renovation of old houses is different from that for new renovations and needs to be confirmed separately.
By understanding these knowledge of decoration area calculations, owners can be well informed when negotiating with decoration companies and avoid unnecessary disputes in the later stage. It is recommended that you carefully check the area calculation method before signing a contract to ensure that your rights and interests are not compromised.
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