Wallpaper Roll Calculation:
Calculating required amount of wallpaper is important for wallpaper buyer or end user. By taking the selected wallpaper roll size and the wall size, the number of rolls are determined.
Here you are going to learn how the wallpaper requirement is calculated. Firstly before a buyer go to the wallpaper shop, they must measure their required wall with inch tape. The measurement must be wall length and the height.
Also the another important items that you need to know is what is the size of the wallpaper roll. Since there are different kind of wallpaper rolls available in the market, it is necessary to ask seller about this information for your calculations. Usually in Singapore, you will get Korean wallpaper, European wallpaper and Japanese wallpapers. The standard sizes are below.
Korean wallpaper is with 1.06m width and 15.6m length.
European wallpaper is with 0.5m width and 10m length.
Japanese wallpaper is with 1.06m width and 50m length.
Wall length. 4 m
Wall height. 2.7 m
For Korean wallpapers:
If you are wishing to buy Korean wallpaper rolls, you need to divide the wall length or width by using the wallpaper width.
In this case, you need to divide 4 by 1.06. If you get the answers in decimal, then you need to choose the next nearest round number with decimal. In this case, the answer is 3.77 so you need to take it as 4. That means, wallpaper installer need to cut the wallpaper roll into 4 pieces to stick onto your wall.
After this, need to calculate the wallpaper length requirement for each panel (total requirement is 4 panel as calculated above)
Each panel needs cutting allowance on top and bottom and also the design pattern matching. Cutting allowances are essential but the design pattern allowance will be depending on what kind of design that you are going to select. Usually, if you are thinking about flower or retro design, just add 0.3m. If you choose plain or vertical line, then no need to add this allowance.
So in this case, your panel length will be 2.7m ( which is your wall height) + 0.1m (top cutting allowance) + 0.3m (design pattern repeat matching allowance) + 0.1m (bottom cutting allowance)
So now you are getting 3.2m panel length. Multiply this panel length with number of panels that you have already calculated. Yes, the answer is 12.8m. Since the korean wallpaper roll length is 15.6m and you need only 12.8m, yes 1 korean wallpaper roll is enough to cover your wall.
Hope, this calculation is useful for you especially when you buy for your whole house wallpaper, it is necessary to calculate by yourself before you approach suppliers.
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