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Wallpaper quantity calculator by apartment size

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Please check.

  • Since the calculated value differs depending on the sale area versus the actual area, you must verify the area type specified in the contract before entering it to minimize errors.
  • This calculator is based on standard criteria including ceiling wallpapering; if only walls are worked on and the ceiling is excluded, the actual amount required may be less than the result.
  • Wallpaper with large pattern repetitions results in significant waste during the matching process, so please order about one roll more than calculated.
  • Please note that for apartments with extended balconies or coffered ceilings, about 10 to 15 percent more wallpaper material may be required compared to standard sizes.
  • Since the coverage area per roll differs between silk and laminated wallpapers, please be sure to determine the type of wallpaper you intend to purchase first and check the calculation results.

How about this calculator?

Wallpaper Calculator by Apartment Size Type, Guide to Calculating Wallpaper Roll Count and Quantity by Actual Area

When partially wallpapering a living room accent wall or just one wall, the biggest concern is the amount of wallpaper required. Accent wallpapers, in particular, often result in significant waste depending on pattern alignment, making it easy to end up short by one width. This calculator accurately determines the required number of rolls by reflecting actual measurement data and material loss rates. Use it as a reliable reference value for a successful DIY interior project before placing your materials order.

Formula for Calculating Wallpaper Requirements by Apartment Size Type

The wallpapering area must include all four walls and the ceiling in addition to the floor area (in pyeong]. The basis for calculation based on the apartment structure and wallpaper type (silk/paper] is as follows.

1. Basis for Calculating Wallpaper Area (㎡]
Wallpaper area (㎡] = Actual area × 3.5 or Sale area × 4

Typically, a multiplier of 3.5 is applied if the ceiling is included, and 2.5 if it is excluded or if there are many windows. This calculator applies the optimal coefficient tailored to the residential type.

2. Formula for Calculating Required Roll Count
Number of rolls needed = Total installation area / Area of ​​one roll of wallpaper

It is calculated based on the assumption that one roll of silk wallpaper can cover approximately 5 pyeong (15.6㎡] and one roll of laminated wallpaper can cover approximately 2 pyeong (6.6㎡].

Detailed Guide to Calculator Input Items

Please check your apartment contract or the specifications of the wallpaper you plan to purchase to accurately calculate the number of rolls.

  • 1. Area Type

    Select the type of data to enter from the 'sale area' specified in the contract or the 'exclusive usable area' which is the actual living space.

  • 2. Wall/Ceiling Wallpaper Specifications

    Enter the width and total length of the wallpaper roll you wish to purchase. (Standard Silk: 1060mm / Wide Laminated: 930mm]

Standard Wallpaper Quantity Table by Apartment Size

This is the standard recommended order quantity applicable when there are no structural peculiarities at the site.

Apartment Size (Presale] Silk wallpaper (wide width] Laminated wallpaper (wide width] Remarks (Field Terms]
10-pyeong type (studio] 2 ~ 3 rolls 4 ~ 6 rolls Mainly partial wallpapering
24 pyeong (3 rooms] 6 ~ 8 rolls 12 ~ 15 rolls The most standard specifications
32 pyeong type (3 bedrooms/2 bathrooms] 10 ~ 12 rolls 20 ~ 24 rolls Reference value before precise actual measurement
40 pyeong or larger 15 rolls or more 30 rolls or more Hallways and coffered ceilings are significant variables.
note.

In the case of an extended apartment or a coffered ceiling structure, about 5 to 10 percent more wallpaper may be required than the calculated area.

Essential Checklist for Fail-Free Construction

This is practical know-how for preventing material waste and achieving a high-quality finish.

  • Using a laser level

    If the first strip is not attached vertically, the wallpaper will tilt noticeably towards the last strip. Securing a baseline is essential.

  • Pre-calculation of base paper and auxiliary materials

    Since 'space wallpapering' that creates a gap is essential for silk wallpaper, you must also calculate the quantity of underlay paper such as Itex and Ecotex.

  • Prohibition of forced drying

    It is natural for wallpaper to be wrinkled immediately after application. Avoid using air conditioners or heaters, and let it air dry for 2 to 3 days with the windows closed.

  • Check vertical alignment

    Establishing the vertical alignment of the first width determines the quality of construction. Use a laser level to prevent diagonal tilting.

Frequently Asked Questions (FAQ]

  • Q. Why is there a significant difference in order quantities between silk wallpaper and laminated wallpaper?
  • A. This is because the area that can be covered per roll of wallpaper differs. Silk wallpaper typically covers about 5 pyeong, while laminated wallpaper covers about 2 pyeong, so the number of rolls required for laminated wallpaper is calculated to be more than double.
  • Q. Do I need to calculate the area for windows or built-in closets separately?
  • A. This calculator is based on standard apartment statistics. If the living room window is very large, you can order approximately 0.5 to 1 roll less than the calculated result.
  • Q. What should I do if I don't know the exact dimensions of the wallpaper roll?
  • A. Please use the domestic standard specifications of silk (106cm] or wide laminated wallpaper (93cm] as the default. Most branded wallpapers adhere to these specifications.