How to calculate the amount of wallpaper you need | how to figure the amount of wallpaper do i need | wallpaper calculator | how much wallpaper do i need for wall | wallpaper for bathroom.

All wallpapers add colour, pattern, texture, depth and style to interior spaces. In general terms, its create an effect of increasing space interior of room, bathroom or at least a clear point of attention on walls. There are different types of wallpaper comes in single and double rolls of different colours, pattern and texture.

If you want to apply wallpaper on your walls, room, or small bathroom, the common questions comes in mind how to calculate the amount of wallpaper you need. Applying wallpaper can help add color, patterns, and texture to a room to make it more inviting, comfortable and increasing beauty of the room.

If you plan on adding wallpaper in your walls or any room, or bathroom, you can roughly make an average estimate to figure how much wallpaper you need by multiply total length of projects by their height by this means you can get total amount of square footage of wallpaper you need. This can helps you to ensure that you don’t get too much or too little for your any projects. By calculating the total surface area of your walls of room and measuring the pattern of the wallpaper you want, you can easily plan how many rolls you’ll need. Always take 10% extra for pattern matching, or mistakes, or need to make repair in future.

To figure out how much wallpaper do you need, multiply the total length (perimeter) of walls by their height to find total surface area. If you want to find number of rolls then divide total surface area by usable wallpaper size in square feet. Add all the length of walls to find the perimeter that you are covering with the wallpaper. Multiply the perimeter by the height of wall, so, you can find the total surface area of room.

For example, if your room measures 10 by 10 feet and height about an 8 foot high, you would need about total of 352 square footage of wallpaper to cover walls. Formula for Area of room = Perimeter × height + 10% extra = 2(10+10) × 8 + 10% extra as waste = 352 sq ft. Noted that you do not need to subtract surface area of openings like your doors, windows, ventilation or any others since its better to some extra paper rather than too little.

Wallpaper comes in single or double rolls. As per US standard a single roll of wallpaper gives you about 35 square feet, but waste and pattern matching usually takes this down to about 27 usable square feet per roll. Double roll of wallpaper will have 57 to 61 square feet which gives us 54 usable square feet per roll.

**How to calculate the amount of wallpaper you need**

To calculate how much wallpaper do you need, divide the total surface area by the amount of usable wallpaper per roll. Multiply the length of wall by their height to find total surface area.

For example, if your wall measures 12 feet in length and an 8 foot in height, you can calculate the total square footage of the wall which was 108 square feet (12×8 + 10% extra= 106 sq ft) including 10% waste factors and each single roll of the paper is about 27 square feet usable area so you would need at least 4 single rolls wallpaper. If you use double rolls, 2 rolls wallpaper will be required.

To figure out how many rolls of wallpaper do i need for room, divide the total surface area of walls of room by the amount of usable wallpaper per roll. Multiply the total length (perimeter) of walls of room by their height to find total surface area.

For example, if your room measures 10 feet in width, 12 feet length and an 8 foot in height, you can calculate the total square footage of the walls of a 10×12 room which was 387 square feet including 10% waste factors and each single roll of the paper is about 27 square feet usable area so you would need at least 15 single rolls wallpaper. If you use double rolls, 8 rolls wallpaper will be required to cover walls of a 10×12 room.

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**How to calculate wallpaper square footage**

To calculate wallpaper square footage, measure the width and height of each wall of room where you would like to apply the wallpaper and add all width together to find perimeter. Multiply the total Width or perimeter by the height of the walls. This is the total square footage of walls space you need to cover with wallpaper.

Formula to calculate wallpaper square footage: 1) Perimeter = 2 (length + width), and 2) Area in square footage = Total Length or perimeter × height. This formula is used to figure out total square footage of walls space you need to cover with wallpaper.

**How many square feet will 1 roll of wallpaper typically cover?**

As per US standard, each single roll of wallpaper will come in 35 square feet, but waste and pattern matching it will cover about 27 usable square feet per roll. Double roll of wallpaper will come 57 to 61 square feet which will cover about 54 usable square feet per roll.

**Wallpaper cost per square foot**

As per indian practices, wallpaper in india can cost anywhere between INR 50 to INR 5,000 per square foot depending on its quality, design, colour, texture and material used. The market rates for installation cost will mostly fall between INR 10 to INR 15 per sq ft.

As per US practices, on average, double roll wallpaper will cost between $30 to $50 and about $1.14 per square foot. One roll of wallpaper will cover about 27 square feet, so you can expect to pay about $3.70 to $8.20 per square foot for materials and installation cost.

As per UK practices, the cost to wallpaper a room ranges between £20 – £40 per square metre or £20 – £40 per m2. Wallpaper installation will cost between £80 to £300 per day, which depends on the type of wallpaper and the size and condition of your room.

**How much does wall paper cost**

The price of wallpaper depends on the type of product you use. Basic wallpaper will cost $18 to $40 per roll on average, while designer and custom wallpaper can cost $280 or more per roll.

The type of paper you choose also plays a role in effecting its pricing. Non-woven wallpaper will cost about $1 per square foot. Vinyl or vinyl-coated options will cost a little more than $2 per square foot. Grasscloth will cost up to $4 per square foot.

**How much does it cost to wallpaper a 10×10 wall?**

A 10×10 square foot room should require about 14 single rolls wallpaper. Basic wallpaper will cost $18 to $40 per roll on average. So on average, you can expect to pay between $252 to $560 plus the installation cost.

**How much wallpaper do i need for a 10×10 room**

On average, a 10×10 room have about 352 square feet of walls area (perimeter times height = 40×8 + 10% waste =352) including 10% waste factors without subtracting any opening which will require approximately either 14 single rolls or 7 double rolls of wallpaper which would cost between $252 to $560 for materials to cover walls of 10 by 10 feet room.

**How much wallpaper do i need for a 10×12 room**

You would need approximately either 16 single rolls or 8 double rolls of wallpaper to cover walls of a 10×12 room which would cost between $288 to $640 for materials. If you measure in square footage, including waste factors of 10%, total of 387 square feet of wallpaper you would need for a 10 by 12 feet room.

**How much wallpaper do i need for a 12×12 room**

You would need approximately either 18 single rolls or 9 double rolls of wallpaper to cover walls of a 12×12 room which would cost between $324 to $720 for materials. If you measure in square footage, including waste factors of 10%, total of 422 square feet of wallpaper you would need for a 12 by 12 feet room.

**How much wallpaper do i need for a 14×14 room**

You would need approximately either 20 single rolls or 10 double rolls of wallpaper to cover walls of a 14×14 room which would cost between $360 to $800 for materials. If you measure in square footage, including waste factors of 10%, total of 493 square feet of wallpaper you would need for a 14 by 14 feet room.

**How much wallpaper for one wall cost**

On average, one wall have about 100 square feet area (length times height) which will require approximately either 4 single rolls or 2 double rolls of wallpaper which would cost between $52 to $160 for materials to cover one wall of average size room.

**How much wallpaper do i need for a small bathroom**

On average, a small bathroom have about 300 square feet of walls area (perimeter times height) which will require approximately either 12 single rolls or 6 double rolls of wallpaper which would cost between $216 to $480 for materials to cover one walls of average size bathroom.

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**Conclusion:**

To calculate the amount of wallpaper do you need, divide the total surface area by the amount of usable wallpaper per roll. For eg, a 10×10 room have about 352 sq ft of walls area and each single roll of the paper is about 27 sq ft usable area so you would need at least 14 single rolls of wallpaper.