Having enough wallpaper is crucial to the success of your project. You don’t want to run out of a roll midway through your room or end up with unused paper left over at the end.

To estimate how many rolls you need, start by measuring the walls (including doors, windows and inset cupboards). Then divide this measurement by the width of a wallpaper roll (provided in product specification) – remember to round up.

Measure the Walls

To determine the amount of wallpaper needed for a room, start by measuring the walls. This includes any trim, such as baseboards or crown molding. Add the lengths of each wall to get the room’s perimeter and multiply it by the height of each wall to get the area in square feet. Don’t forget to measure any doors, large windows and small windows. Then, enter these measurements into Bankrate’s wallpaper calculator. Make sure to include a small amount of material for waste and pattern matching, as well as a margin for error. Also, make sure you are buying paper that carries the same lot, run or batch number to ensure consistency in color.

Calculate the Area

Many wallpaper retailers offer online tools to calculate the number of rolls needed for your space. These calculators use basic math, multiplying wall lengths by wall width. But they don’t account for things like pattern repeat, deductions for openings or different percentages of waste in each pattern.

Instead, use the square foot method that takes all your measurements into consideration. This method is especially helpful when your walls are not straight or even.

The first step is to measure the lengths of all your walls and record them. Next, measure the widths of all your walls and add them together. Remember to subtract the area of any doors and windows. Then multiply the total width of your walls by your wallpaper’s width, and then divide that number by your pattern repeat (if applicable). You will be left with the amount of wallpaper you need to cover your entire room. But don’t forget to allow for a few extra rolls for unforeseen installation accidents or replacement of damaged wallcovering in the future.

Divide the Area by the Roll

Many wallpaper manufacturers list the amount of coverage that a roll provides, and you can use this information to estimate how much you need. Just multiply the length and width of the wall by the number of square feet that a roll covers to find the total area.

Note that this calculation is for the actual surface of the walls, and it does not account for doors or windows, which will need to be trimmed when hanging the paper. Some people prefer to subtract for windows and doors, but this can cause a problem when working with patterns that have a large drop match. It is also a good idea to get an extra roll just in case you need it. For more info I’ll suggest you visit the website wallpaper singapore.

Most wallpaper is sold in single and double roll bolts. A standard American double roll is 27 feet long and contains 9 yards of wallpaper. This equates to 56 square feet of usable wallpaper.

Calculate the Number of Rolls

Wallpaper typically comes in double rolls of approximately 26 feet. The usable coverage on a single roll varies by the pattern, but is usually about 28 square feet. This number is reduced by the pattern repeat and waste.

The amount of wallcovering you need to order can vary considerably based on your room’s shape, the size of its windows and doors, and the overall effect you are going for. You may also want to add extra in case of an installation error, or if you want to repair damaged wallcovering in the future.

When you are ordering, make sure all your wallcoverings are from the same dye lot. This is important to ensure color consistency throughout your project. Check the wrapper of each roll for a lot, run or batch number. Different dye lots can have noticeably different colors. The dye lot should match the number on your measurement sheet. Ordering too little can be just as costly as ordering too much.