Posts Tagged ‘inches’

1″ X 5′ = 9 sq ft of Lost Paper

July 18, 2021

For all the prospective clients who think they can pull out their calculator and slide rule and then meticulously calculate that they can cover their walls with 186.7 sq ft of wallpaper – WRONG!

Here is a good example of waste, and why you can’t purchase wallpaper based on square feet alone.

Here we are working with a non-woven material that is packaged in 21″ wide x 33′ long.

In the photo, that narrow 1″ wide strip of wall on the left needs to be covered with wallpaper.

That’s 1″ wide x 5′ tall. That comes out to .41 square feet of wallpaper.

Sounds negligible, doesn’t it? But in real life, a whole lot more wallpaper will be called into play – and tossed into the trash – in order to cover this miniscule space.

Although I stockpile all scraps, there is nothing in my remnant pile that is long enough, nor the correct pattern match, to cover this space.

So I must cut a new length from a bolt of wallpaper.

The pattern has a 25″ repeat, so I had to cut off almost this much in order to come up with the correct pattern match. That’s 25″ long x 21″ wide … so already, we are nearly 4 square feet cut off and thrown onto the trash pile.

Now that I have the pattern matched correctly, I need 5 running feet of it to cover the length of wall in the photo. That’s 60″ long x the 21″ wide width of the wallpaper. That calculates to 8.75 square feet of paper.

Of those 8.75 square feet, remember that I need only a 1″ wide strip. As previously mentioned, that comes to .41 square feet.

So, 8.75 sq ft – .41 sq ft = 8.33 sq ft of paper that can’t be used anywhere else, and will be tossed onto the discard pile.

That’s 8.33 sq ft of waste. Considering that the average single roll of wallpaper contains 28 square feet (but in reality, only 22 square feet of useable paper), this leaves you with only 19.75 square feet of useable paper.

In double roll speak, this means a bolt with 56 square feet, which is better calculated at 44 useable square feet, after hanging this one puny 1″ wide strip, you are left with 47.7 sq ft of useable paper – nearly 10 sq ft lost for just one 1″ wide strip!

And this is just the tip of the iceberg. I haven’t even gotten into pattern repeats, trimming at ceiling and floor, going around windows, vaulted ceilings, stairs, multiple drops, expansion when wet with paste, and all sorts of other factors.

Bottom Line: We paperhangers know the ins and outs of this stuff.

And homeowners don’t. Nor do contractors, painters, handymen, nor even engineers. Most of all, NOT engineers. (I love ’em all,,,, but they tend to get bogged down in details, and overlook the grand scale.)

Bottom, Bottom Line: Let the paperhanger measure the space and calculate how much wallpaper to order.