Posts Tagged ‘level’

Plumbing Up Coming Out Of A Corner DRAFT

January 29, 2023
Here I’m hanging wallpaper, moving from right to left, preparing to turn this corner . You don’t wrap a strip of wallpaper around an inside corner (see previous post for more information). So I’ve cut a new strip, trimmed off excess on the right so the pattern on the new strip matches that on the existing strip, and am getting ready to proceed to the left.
But corners are never straight or plumb , and chair rail and ceilings are never perfectly level . So if I butt the new strip right up into the corner, if that corner is off-plumb , it will cause the new strip, and all subsequent strips, to be off-plumb. And that means that the design motifs will start tracking up or down hill as we move across the wall.
You want all the motifs to be at the same height along the ceiling and chair rail – within reason, of course, because if those features are not level, the motifs can’t help but move up or down.
Anyway, the best you can do is to hang your new strip perfectly plumb . So here you see I’ve shot my laser level at the wall at the far edge of the new strip. I’m butting my new strip up to that red line. I’m also using my 2′ bubble level as an extra guide.
Note that sometimes this means the new strip will not butt up perfectly in the corner, because it may tilt a bit to the left or right. When that happens, you just trim off the slight overlap. This means you may end up with a slight pattern mis-match in the corner. Usually not too noticeable.

Un-Plumb, Un-Level

January 24, 2023
Shot of the finished breakfast room , for pattern reference.
Close-up view. The vertical lines are not wrinkles , but shadows cast by the macrame light fixture in this breakfast room .
The problem is, when walls aren’t plumb , and ceiling and floor and chair rail are not level , the pattern motifs won’t march across the wall at the same height on every strip . I’ve learned that, in most cases, it’s more important to match the pattern in the corner , and then allow the pattern to go off-track at ceiling or floor if necessary.
In this photo, note that the humming bird is sitting completely above the chair rail.
Here he’s dropped down to where his tail is swallowed up by the chair rail .
By the time we get to the left corner , half of the bird has dropped down and disappeared .
Here’s another bird motif doing the same disappearing act .
Feet and belly gone.
This house in the Eastwood neighborhood of Houston is nearly 85 years, so you can expect some settling and shifting on its foundation . But even brand new homes can have walls that are out of whack .
This beautiful pattern is by Cole & Son and is called Hummingbirds – it’s very popular and has been around more than 100 years … that’s older than the house!

Textured Faux Grasscloth on Master Bedroom Accent Wall

December 9, 2022

Before. I’ve skim-floated the textured wall , sanded it smooth , wiped off the residual dust , and then primed with Roman Pro 977 Ultra Prime wallpaper primer . Now we’re ready for wallpaper !
Done! Just a bit of texture , and a little neutral color to add some warmth to this large , mostly-grey , master bedroom . Oh – and some subtle sparkle . See following photos .
It looks like real grasscloth . But it’s a faux! To help these homeowners avoid the disappointing color variations and low durability of real grasscloth , I encouraged them to consider textured vinyl products that recreate the look and texture of the real stuff , but without the drawbacks. Please click and read my link to info about grasscloth on the right of this page.
Real grasscloth , and the fauxes , as well, have visible seams (very minimal issue with the fauxes). So it’s important to balance the strips , so you have equal widths of panels as you traverse the wall. In other words, you don’t want five 36″ wide strips and then one 20″ wide strip.
And you’ll want to center those strips on the wall. Position them so you have an equal number of equally-sized strips on both the right and left sides of the wall.
Another design concept is to not have a seam fall down the center of a wall. Rather, it just feels better aesthetically to have the strip straddle the center line .
Here I’m hanging my first strip, having already calculated where the center of the wall is, the center of the wallpaper panel is, measured over to where the seam should fall, and then placed the red line of my laser level so it will guide where I should butt the edge of the wallpaper against.
That’s my Bosch laser level gizmo sitting on the top of the headboard, shooting its red light beam onto the wall.
Another shot. I’m using the vertical light beam ; the horizontal beam is not relevant in this install .
This textured vinyl material does a pretty darned good job of recreating the look and feel of real grasscloth . This photo is from about 6′ away.
A closer look. Note the bit of silver shimmer in the background , that adds a luxe look to the overall effect .
The wallcovering is by York , one of my preferred brands . It’s on a non-woven backing , which has many advantages over traditional paper-papers. It’s breathable , stain-resistant , will strip off the wall easily and in one piece with minimal / no damage to the wall when it’s time to redecorate .
It can be hung by the paste-the-wall method (which is what I did today) or the paste the paper technique (which I use most of the time).
I felt that the seams laid down better and had less ” rebound ” edge curl from factory trimming than many of the heavier vinyl faux non-woven backed materials I’ve worked with. In other words, I liked this product pretty much!
this particular material was also thin and flexible , so it was easy to work with and manipulate if needed.
The home is in the Spring Branch area of Houston.

Ceiling is NOwhere NEAR Level

November 29, 2022
We wallpaper hangers / installers like to have a nice straight ceiling line . Meaning, that the same pattern motif will show up at the same height on the wall on every strip . For instance, the top of the sailboat will touch the bottom of the crown molding all the way around the room.
But in old houses, poorly-built houses, or just plain old wonky houses (which are most homes in Houston! ), you can’t count on ceilings and floors being level , nor on walls being perfectly plumb .
When I used my level to check the ceiling in this 1926 home in the Woodland Heights neighborhood , I admit – I laughed out loud!
When a surface is level, the air bubble will be in the middle of the two black lines . It’s common for the bubble to be a little “off.” But this one isn’t even trying to be in the middle. Meaning – the ceiling is nowhere near level. The ceiling line is moving up and / or down as it moves across the room. The discrepancy can be as much as an inch or even more from one end of the room to the other.
Meaning, there is no way that that sailboat is going to be just below the ceiling on every strip.
Luckily, this particular wallpaper pattern was such that you aren’t going to notice much.
The other thing is, most people who live in older homes, or homes with shifting foundations , or even new homes , understand that walls and floors rearrange themselves over time . So they’re understanding if sailboats drift down the ceiling line , or if patterns don’t match absolutely perfectly in the corners.

Preserving the Life of Your Laser Level Battery

October 15, 2022

I love this cool tool. It eliminates the need for a standard level and pencil line.
It projects a perfectly vertical line on the wall. Here I’m butting my first strip of wallpaper against the red laser line.
But the batteries can wear out quickly. That’s because they’re continually passing their juice around the terminals and connectors, even when the unit is not turned on.
To save battery life, when not in use (such as when it’s stored in my van), I either take one of the batteries out, as seen here. Or turn one of the batteries around, thus disrupting the connection and preventing electricity from flowing and being eaten up / wasted.

Artemis Block – Inverted Twin of Yesterday’s Install Post

October 14, 2022
Half bath sink room primed and read for wallpaper . I have plotted where the seams will fall and striped with dark paint , to prevent the light colored primer from showing in case the seams gap a bit.
Artemis is available as a floor-to-ceiling pattern. So this partial coverage option is an innovative and fun variation on a theme .
This is the same pattern Artemis Climbing Walls as yesterday, but reversed , so the flowers go from bottom upward .
The ceilings are pretty high. The empty 5 gallon bucket is there on the counter (with non-slip cushioning beneath it) as an un-OSHA approved footrest , so I can safely reach the top corners .
Artemis is a very popular wallpaper pattern , especially in this dark / black colorway .
Manufacturer is House of Hackney .
This install was on four walls in a powder room , instead of a single accent wall. Since this comes as a 4-panel mural instead of traditional rolled goods, the layout was a little more tricky . I cut out the little mock-ups from the instruction insert, and marked them as to roughly where each panel was separated .
This is a non-woven material, and can be hung by the paste the wall method, as I did yesterday in the dining room. But today, in the small and chopped up powder room , I opted to paste the paper instead.
You will note that this pattern continues uninterrupted from one mural to the next. If you have a wide space to cover and will need more than one mural , this continuation of the design is imperative. Not all do, so check and be extra sure, before you order.
Speaking of ordering material … remember that for murals, you MUST add 2″ to EACH side – in other words, a total of FOUR INCHES to BOTH WIDTH and HEIGHT . This will accommodate trimming at floor and ceiling , and also will allow for wonky or off-plumb / level surfaces .
Better yet, have your wallpaper installer calculate for you.
Houston

Grasscloth Engineering and Logistics – Technical Details Post

August 21, 2022
Grasscloth is a natural material that cannot be matched from strip to strip, so all the seams will be visible . In addition, there is usually a slight but noticeable color difference between strips / panels (called shading or paneling ) . So it’s important to plot the layout of the strips to give the most visually pleasing overall look. Usually this means balancing the width of strips so they are all equal , at least on the same wall . We call this engineering .
This wall presented particular challenges , due to the widths of the elements. Grasscloth comes 36″ wide . You can use your straightedge and a sharp razor blade and trim it down to any width you want.
The width of both the large wall spaces to the right and left of the bank of windows was 34.” The width of each window was about 35.” The width of the two spaces in between the windows was 7.”
So you’d think I could trim my panels on either side of the windows, and then over the windows, to about 34″-36″ – give or take a few inches (or fractions thereof).
But that would leave me with two 7″ wide strips between these 35″ panels. Although the look would be uniform and mirror-image from the center outward, moving from right to left you’d have: 35,” 35″, 7,” 35,” 7,” 35,” 35,” … those 7″ breaks were just not going to look right.
One option was to determine the width of the wall (189″) and make each strip an equal width. This worked out to six strips, each at 31.5″ Not good, because this would mean a seam down either far side. And since those sides were 34″ wide, that would mean a 31.5″ wide strip and a strip 2.5″ wide. Not attractive at all, and it would use up an extra strip of wallpaper.
This six strips @ 31.5″ wide scenario might also land with a seam smack in the middle of those 7″ wide interludes in between the windows. Not attractive at all.
So I decided to make the two outer strips 35″ wide. That left 119″ of wall space above the windows to be covered with wallpaper. Do some math and you get four panels of 29.75″ wide. This gave a balanced and uniform look to the area over the windows, and also prevented seams from landing between the windows.
Moving right to left, I cut and hung the full length outer strip first. Then I cut and hung the strip over the window on the right. Then I measured to find the centerpoint of the window in the middle. Turns out it was a bit less than 29.75″ away. So I trimmed that next over-window strip accordingly.
Once that was in place, I measured from that center point above the middle window out to where my left full-height panel would fall, 35″ out from the wall. Took the resulting measurement and divided by 2. Lo and behold, each of the next two panels over the window was going to be a bit wider than 30.” No problem. No one (but a paperhanger or maybe an engineer) is going to notice a 1/4″ or even a full 1″ difference in widths between this strips over the windows.
Another thing to point out … it’s important that I took measurements before cutting these strips for this second left-hand section. Because, since grasscloth comes at 36″ (and walls can be wonky), if my strips had been narrower (say, 28″), that last full-height panel on the left might have ended up needing to be 37″ wide – and that wouldn’t work because it only comes 36″ wide – plus you need at least 1/8″ to wrap around the corner.
Luckily I had the flexibility to be able to trim the panels over the windows to any width needed, to accommodate all this.
If you’ve followed all this so far, let me also toss in that we also need to figure how to get paper in between those windows. More on that below.
In this scenario, I’m moving from right to left.
Area beneath the windows needs to be treated in the same way, and preferably with widths that match what’s going on above the windows. In addition, it’s tricky because after you move across 12′ of wall space, the strips above and below the windows are going to twist and torque out of shape, so that last full-length panel on the far left might not butt up perfectly with the last strip under the windows.
The grasscloth is black , and my wallpaper primer is white . It’s common for teeny gaps to appear at the seams . In this case, it’s likely that white wall would peek out from those gaps. So I like to stripe under where the seams will fall with dark (diluted) paint . This takes measuring , plotting , and also a heat gun to get the paint to dry before the wallpaper hits it, to avoid staining. You can do a Search here to read more about this technique .
Now let’s talk about getting wallpaper in between those windows.
As you can see in the photo, if I hang a 30″ wide strip, a whole lot of paper is going to be cut off and thrown away. Also, a whole lot of sticky, pasted paper is going to bump against that window molding and maybe even the window glass. A lot to clean up! And unwieldy, to boot.
My solution was to stop the wallpaper just a little below the tops of the windows. Then I would patch in a 7″ wide strip in between the windows. This is trickier than it sounds, because, if it were a paper wallpaper, I could simply cut along a design motif and overlay the 7″ wide piece. But grasscloth is thick and overlaps don’t look good. Also grass has no design elements , and the reeds of grass don’t necessarily fall perfectly horizontal , and even if you cut everything perfectly true to square , if the window molding is a teeny bit off-plumb , then your edges won’t butt up perfectly.
So that’s a good reason for striping the black paint under where the butt join will occur.
Same thing for the sections under the windows. I measured and positioned the strips so that the top edge (which I had trimmed to be perfectly horizontal) fell between the narrowest part of the windowsill molding, for less visibility.
I admit, instead of butting the two pieces, here I did overlap the 7″ wide strip about 1/4″ onto the piece under the window, right at that narrow junction. It’s only about 3″ wide, and I figured no one is going to be examining it that closely, anyway. This saved me about a half an hour of measuring, trimming, testing, repeat, repeat.
This is my second window interlude, and by this time I had realized that it’s hard to trim stiff grasscloth around intricate moldings precisely . So I used paint to fill in the edges around the window molding, just in case there might be any gaps between the grasscloth and the molding, so you would see black instead of the white molding paint. I did this with a small sponge; if I had used an artist’s brush it would have been a bit neater and tighter to the conforms of the molding. But sometimes you’ve gotta relax and realize that no one’s going to be scrutinizing the insides of moldings below shin-level.
Area over windows finished, with drapes back in place.
Turns out this particular grasscloth is so uniform in color (quite unusual, I will add), that you can’t really see the panels , nor their equal widths , anyway. I’m still glad I took the time to do all this math and trimming.
Area below the windows, done. That last seam on the left bears some explanation, too. Moving across the top of the windows, I measured that that last strip – the full-length strip – would need to be exactly 35″ wide. It butted up nicely to the last strip above the windows.
But, due to twisting , shifting , expansion , unlevel and unplumb walls and ceilings , and other factors, there is a really good chance that that last 35″ wide strip would not butt up perfectly with the last 30″ wide strip under the window . So I planned to splice these last two strips together.
Yeah, the drapes are hanging there, I coulda overlapped the two strips about 1/2″ and the drapes would have covered it. With a thin wallpaper, I probably would have done this. But grasscloth is thick, and an overlap would be visible , and also the adhesive / paste can’t be trusted to adhere as well to grass as it would to paper .
So I plotted for a splice. Instead of trimming my last strip under the window to 30″ (read above), I trimmed it to 32″ wide. That way, when I hung the last full-length strip to the left, which was 35″ wide, it overlapped the piece under the window by a few inches. Then I did a double cut and spliced the two pieces. See below for details about that technique.
Grasscloth is 36″ wide, and this wall area is wider than that. So two strips were needed. This means you’re going to have a seam, and since grasscloth seams are always visible, it looks best to plot to have the seam fall down the center. It uses more wallpaper to do this, but it looks much better than having, for example, a 36″ wide strip next to an 8″ wide strip.
As mentioned above, in case you get thin gaps at the seams, a dark stripe of diluted craft paint under where the seam will fall, will prevent white wall from showing through.
Rounded / bull-nosed edges and corners have been popular in new construction for at least 10 years. I wish they’d go away. They’re very difficult to trim around, and hard for the paper to conform to and adhere to.
It’s very hard to trim around that rounded edge, because the paper is hanging over and blocking your view, because grasscloth is thick and stiff and your fingers can’t feel through it, and because the edges aren’t necessarily true and plumb so a laser level or other level won’t help you much.
I use this little gadget as a trim guide. It’s actually a small section of the same corner bead material that drywallers use when they assemble these walls. Cut to about 1″ long and notched in different places where you might trim along the edge of the wall.
It’s intended that you place your trimming knife in one of the notches and slide the gizmo along the edge and make your cut. I find that awkward and also inaccurate. So I prefer to use the notches as a guide and mark where I plan to trim with a pencil. Since this wallpaper is black, I used this marking pencil from my home sewing kit instead. Chalk might work, but I was afraid it might now wipe off completely.
The pink pencil line was barely visible, but it was enough for me to use a scissors to trim along the grasscloth. I like this better than using a razor blade as I can see better, and also less chance of scoring into the primer or wall. Which raises its own set of issues – do a search here to find previous posts.
Inside view of the trim guide.
Finished arch. Note the four panels of equal width above the arch. And two flanking full-height panels also the same widths.
I was lucky that there was no pattern to match, so I was able to butt my two flanking strips right up to the edge of the bull-nosed corner. No trimming needed! Then I measured the remaining width between these two strips (the area over the arch), divided by four, and cut four strips of equal widths.
I hung the two on the left, and then one on the far right. This left one strip still to be positioned to the right of center. So the pieces are going to meet over the arch, rather than the last strip falling in a corner.
Same as the last strip under the window (discussed above), it’s really difficult to get your last piece to fit in here perfectly. I’ve done it, but it takes a lot of measuring, trimming, testing, retrimming, and often starting all over again.
So I did a double-cut / splice.
A double cut involves cutting each strip an inch or so wider than it should be, and overlapping the two. Then you take a straight edge and sharp razor blade and cut through both layers. This handy tool is a wonderful non-slip guide for this process. It was invented by an installer colleague in the Wallcovering Installers Association ( WIA ) and she has them fabricated in various lengths (along with other cool tools ) and sells them on-line. Contact me if you’re interested.
Anyway, it takes a lot of strength to cut through two layers of grasscloth, so somewhat difficult for lil’ ol’ me.
You also want to be sure to not cut / score into the wall, because the tension of drying wallpaper can tug at the wall and cause it to actually come apart, leaving an open seam that’s difficult to repair.
So you’ve got to put some padding under the wall where the cut will take place. I use special strips of polystyrene (hard but flexible plastic) to pad the wall. Also invented by a colleague in the WIA , who also sells other cool tools and supplies. Contact me if you’re interested.
This black grasscloth was printed on a white substrate. If the seams aren’t absolutely tight, there can be worries about the backing showing through to the front. So sometimes we’ll take a piece of chalk or pastel (never oil pastel or permanent markers because they bleed and stain ) and run it along the edge of the paper – from the back, and taking care to not get chalk on the surface.
I do this frequently with dark papers ( do a search here to see previous posts ) but opted not to do it with this grasscloth. It wasn’t necessary, and might have stained the porous reeds of the grass. It was beneficial, though, to have striped dark paint on the wall under the seams, as mentioned above.
Ugh. Grasscloth comes 36″ wide, and this section of wall is 38″ wide. It’s not visually pleasing, nor is it easy from an installation point of view, to have a 36″ wide strip next to a 2″ wide strip. Or to use scraps and put a 25″ wide strip next to a 13″ wide strip.
So best to plan two strips of equal widths. Two strips, each 19″ wide, with the seam down the middle.
Actually, the strip on the left was 19″ wide, but I trimmed the strip on the right to 21″, because I like the wallpaper to extend 2″ over the top of the door molding. This provides a more stable surface in case of shifting foundation or walls, and less likelihood (knock on wood) of the seam opening up should the house / drywall experience shifting.
Note that design “rules” caution against seams down the middle of spaces. But it would have been more visually distracting (and used up more paper) to have made three strips of each 12.75″ wide. And would have looked even dumber to have used scraps left from other walls and put together two strips of disparate widths.
So the homeowner and I discussed during our initial consultation , and she was happy with the center seam. Once it was all finished, this particular grasscloth was so even in tone that you barely see the seams, anyway. Win-win!
This did use up additional paper, though, as noted in a previous photo above.

Palm Leaf Accent Wall

July 16, 2022
Finished living room accent wall. This was a looong wall – 24′ wide. It took 14 strips of wallpaper!
Before. I’m getting ready to skim-float the textured wall to smooth it, then apply a wallpaper primer .
Ready to hang, with my “A” and “B” strips lined up in the order they will be hung.
This is a paste-the-wall product, and I like to roll them backwards so the surface doesn’t bop into the paste as I position the strips on the wall. I secure with elastic head bands from the dollar store.
First strip starts in the center of the wall, both to balance the pattern. But also because the ceiling line is way not level and the pattern will go off-track at the ceiling, this will minimize the tracking by spreading it outward 12′ each way from the center. If I start at one corner, the tracking would be a lot more noticeable by the time it crossed the whole 24′ of wall.
Close up.
This is simply called Palm Leaves and is by Cole & Son , a good brand. It’s a non-woven material and is designed to strip off the wall easily and with minimal damage when you redecorate. It’s also a little more durable and stain-resistant than paper wallpapers. It was very nice to work with.
The home is in the Westbury area of Houston.
The couple has mid-century modern furnishings, and this wall looks fantastic as a backdrop !

Don’t Assume the Width

June 30, 2022
Here’s a finished map / mural on an accent wall in a child’s room in the Tanglewood neighborhood of Houston.
It’s made by Rebel Walls ( rebelwalls.com ), one of my favorite mural companies, and was custom-sized to fit this wall.
The mural came in a set of nine panels. The instructions above explain how the mural should be hung.
Careful measurements are important, both before ordering (note: Always let the wallpaper installer calculate rollage and mural dimensions before your order ) and then before you start hanging the mural.
This one large roll was cut apart into nine panels. You see them rolled up at the top of the photo.
Each of those panels was 19.75″ wide. So based on that, you might start measuring and calculating and plotting where to position your panels on the wall.
STOP!
Just because the manufacturer’s stock comes 19.75″ wide doesn’t mean that the printed part of each panel fills that full width.
The mural was custom-sized to fit the wall, right? The width of the wall is not an exact multiple of 19.75″. That means that the printed portion of the last panel will be narrower than the others. As you can see in the last photo, that narrow portion turned out to be just 2.5″ wide.
So it’s important that you unroll every strip / panel and take careful measurements of both the wall and the wallpaper , before cutting anything and definitely before pasting anything to the wall.
One more thing, while we’re on the topic of murals. Please don’t order until the paperhanger has measured and figured . It’s very important that the mural NOT be printed to the exact dimensions of the wall. FOUR INCHES of ” bleed ” are necessary to be added to EACH DIMENSION (meaning, four inches added to both width and height ). This will allow for trimming at floor and ceiling , and will accommodate walls / ceilings / floors that are not perfectly level or plumb.

More William Morris Strawberry Thief in Houston Heights Hall Bathroom

June 24, 2022
Because I feared unstable walls in this 1920’s bungalow in this neighborhood (do a Search for previous posts), before hanging the decorative wallpaper, first I hung a non-woven liner paper on all the walls. That’s the white material you see in the photo.
The liner was hung horizontally so its seams can’t line up with the decorative paper. The idea is to disperse tension from drying wallpaper and changes due to humidity and etc., so as to deflect tension away from sketchy wall surfaces, and thus prevent delamination of multiple unstable layers deep inside the wall. Again, do a Search here to learn more.
Finished vanity area, with pattern centered on the light fixture.
Corner shot.
This colorful and symmetrical pattern is quite popular; I’ve hung it a number of times just this year.
Englishman William Morris designed wallpaper and fabrics during the late 1800’s and early 1900’s.
The styles then were Art Nouveau and Arts & Crafts. This design reflects a bit of each.
Wallpaper expands when it gets wet with paste, and then can shrink just a tad as it dries. The liner helps prevent that, but you can still end up with teeny gaps at some seams.
To prevent the white backing from showing through, I run a stripe of dark paint under where each seam will fall.
I use matt finish craft paint from the hobby store, diluted with a little water (in the orange bottle cap) and smeared on the wall with a scrap of sponge. Use a ruler or level and a pencil to mark where you want to stripe the dark paint.
Remember to allow for that expansion as the paper absorbs moisture from the paste. Meaning, if the paper is 20.5″ wide, and expands 1/2″, you’ll want to run your line at about 21.” And make sure that your painted swath is about an inch wide.
I also run a bit of dark chalk along the edges of each strip, to prevent the white substrate from showing at the seams (no photo).
Morris & Co. makes this iconic Strawberry Thief.
Interestingly enough, most times when I’ve hung a Morris paper, it’s been a non-woven paste-the-wall material.
Today’s option was a surprise – a traditional British pulp . This is a pretty basic and somewhat old-fashioned type of substrate . Sort of like construction paper, or the pages of an old family Bible .
The paper is very fragile , and can tear easily. You have to keep using new razor / trimming blades, because the material dulls blades quickly, and when dull they will drag and tear the paper.
Pulp papers also require a soaking / booking time after pasting , to allow time for the material to absorb the paste , soften a bit, and expand . The edges of the strips like to dry out , so I’ve learned to dip about 1/4″ of the booked ends ( booked means the pasted side of the wallpaper strip is folded onto itself, bottom edge folded up and top edge folded down to meet in the middle), into a bucket of clean water.
Then it goes into a black plastic trash bag to soak and relax for a few minutes before hanging. I use this opportunity to paste the next strip.
Non-woven wallpapers have advantages, because they do not expand when wet, and therefor you can get accurate measurements. They also can be pasted and hung immediately, with no waiting time. Alternately, you can paste the wall .