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Calculate home decoration costs

Estimate the cost of decorating each room, choosing styles, materials, furniture and workmanship according to Thai market prices.

Real estate.Verifiable formulaYou can save and share results.

Calculate the cost of home decoration 2026 — Estimated cost of decoration of each room

Choose room, style and material, and the system will calculate the cost in low-high ranges according to Thai market prices.

Rates are based on average Thai interior contractor prices for the year 2025-2026

Home Decoration Costs Calculator

The Home Decoration Costs Calculator estimates a property-cost or return estimate for your scenario from the property value, financing or rental assumptions, time period, fees and rates shown on the page. Replace the example values with your own home decoration figures and recalculate after changing an assumption. Use it to compare scenarios, then verify any current rate or fee before acting.

Choose the room you want to decorate, define the area, choose the style of decoration, the system will calculate the cost of materials, labor and furniture and show the price in low-high range according to the Thai market rate.

Trust information

Use reference information from Thai official agencies. and display results to help plan before making decisions

Last updated: 20 May 2026

source

  • Average Thai market interior decoration cost rate 2025-2026
  • Materials and labor costs from interior contractors.

Assumptions and things to note

  • Prices are estimated ranges (low-high) depending on material and actual contractor.
  • Kitchen ×1.3 (work built-in water pipe) / Bathroom ×1.5 (waterproof toilet)
  • Furniture costs 20-40% of the decoration, depending on style.
Room to decorate
Decoration Style

Formula used for calculation

  • Room Decoration Cost = Area (sqm) × Decoration Rate (baht/sqm) × Room Multiplier × Address Type Multiplier
  • Room multiplier: Kitchen ×1.3, Bathroom ×1.5, Other room ×1.0
  • Multiple addresses: Condo ×1.0, Townhouse ×1.05, Detached house ×1.10, Semi-detached house ×1.05
  • Furniture cost = Decoration cost × Furniture rate (Minimal 20-25%, Modern 25-35%, Luxury 30-40%)
  • Total = Total Decoration + Furniture (if selected)

Official reference source

Frequently asked questions

What's the average home decoration cost?
The price is estimated from the average market rate in Thailand (2025-2026). The actual price depends on the location, contractor, materials chosen and actual scope of work. You should ask for quotes from at least 2-3 contractors.
Is there a difference in the cost of decorating a condo or a house?
Detached houses tend to cost more than condos, about 10% because they have more outdoor space, easier to move materials than condos, but there's gardening, walkways, and additional exterior work. Townhouses are in between.
How much should I reserve?
Note: Prices are estimated from average market rate in Thailand (2025-2026) Actual price depends on location, contractor, material chosen and actual scope of work. You should ask for quotes from contractors at least 2-3 individuals.
Why are the kitchen and bathroom more expensive than the other rooms?
The kitchen is 1.3 because of the built-in counters, additional plumbing for appliances, and the bathroom is 1.5 because of the waterproofing, tiling, toilet installation and plumbing.
Disclaimer: This tool is used to help estimate the initial home decoration costs Actual prices depend on contractor, materials, location and scope of work. You should ask for quotes from contractors at least 2-3 before making a decision.

English calculator guide

How to use the Home Decoration Costs Calculator

Use this page to test a specific home decoration scenario. Enter your own values in the calculator above, review the units beside each field, and recalculate after changing an assumption. The result updates the home decoration costs estimate instead of relying on a generic example.

  1. Build a baseline home decoration case with figures that match your situation.
  2. Run a second home decoration case after changing the rate, period, quantity or other key assumption.
  3. Record the difference between the two home decoration results and the input responsible for it.

Inputs for the home decoration estimate

For this home decoration calculation, check the property value, financing or rental assumptions, time period, fees and rates shown on the page. The result is designed to show a property-cost or return estimate for your scenario, not a guaranteed provider price or official decision.

How the home decoration result is calculated

The calculator multiplies the entered quantities by the relevant usage, price or frequency assumptions shown on the page. Reusing the same home decoration inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.

Checks for a home decoration decision

Confirm current lender, tax, transfer and provider terms before committing. For home decoration, Use the result as a planning estimate and confirm any rate, rule or threshold that may have changed before acting. Check the important inputs and any current provider or authority rules before using the result for a decision.

Language QA
Terminology, numeric values and calculator controls checked
Calculator scope
Quantity and estimation
Last English review
26 July 2026

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Creator and reviewer

Creator
Kamnuanlek editorial team
reviewer
Kamnuanlek recipe and resource review team
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