Grasscloth Engineering and Logistics – Technical Details Post

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.

Free-Form Rainbow for Baby Due Soon

“Before” wall, smoothed and primed.

Measurements done, strip placement plotted, material rolled backward and ready to hang.

Start in the center, to ensure the rainbow lands behind the crib. This is the first three strips.

Although the paper is smooth, the printing method makes it look lightly textured.

Momma chose this soft, water color-y rainbow mural by Anewall for her baby girl’s nursery.

The wall had to be carefully measured, and specific dimensions sent to the manufacturer, to ensure that the custom-printed mural would fit the wall and also have sufficient “bleed” (extra 2″ around EACH side), to allow for trimming and for unlevel and unplumb ceiling and walls.

Don’t let “custom printed” scare you. Modern digital printing makes this easy and affordable.

Just be sure that the paperhanger measures (not Handy Hubby) BEFORE you order.

This was printed on a non-woven material, and I hung it using the paste-the-wall method.

The manufacturer is Anewall. I like the products from this company.

They offer several substrate options. I guess I like the non-woven (paste-the-wall) version best. Second to that is the pre-pasted. Not so fond of their vinyl offering, and definitely wouldn’t work with a peel & stick.

The home is in the Bellaire neighborhood of Houston.

Girl’s Nursery – Last Job Before CoronaVirus Shut Down

Most work in the Houston area shutters at midnight. I was delighted that I was able to squeeze in this one accent wall, for a baby girl who is to arrive soon.

Top pic shows the room in its original all gray state. The walls were textured, so I troweled on a layer of skim-coat to smooth them. In the second picture you see my three fans (plus the ceiling fan and the home’s A/C system cranking away), working to dry the smoothing compound.

I killed a whole Texas Highways magazine while it was drying. Once dry, I sanded the wall smooth, vacuumed up dust, wiped dust off the wall with a damp sponge, and primed.

This wallpaper was a non-woven material, and could be hung via the paste-the-wall method. I usually prefer to past the paper, for many reasons, but in the case of a simple accent wall like this (and because it was easier than lugging my 7′ long work table and trestles up the curved staircase), pasting the wall was a better option.

Once the strips are cut, I roll them up backwards and secure with an elastic hairband. See photo. This helps get rid of the “memory” of the paper, so it does not want to stay tightly curled up. It also keeps the front of the paper away from the paste on the wall, which helps keep everything clean during installation.

The walls in this room (in the whole house, the husband tells me) are pretty darned off-plumb. I used a few tricks and kept the pattern straight along the ceiling line. But, since I started by hanging my strips true to plumb, by the time the paper reached the corners and the adjoining un-plumb walls, there was no way to avoid the pattern being uneven from ceiling to floor. Kinda hard to see in the photo, but there is about 3/4″ difference in width from top to bottom.

Luckily, once you stand back, that crookedness is not all that noticeable.

Although the paper is mildly pink, the muted color and more sophisticated geometric design don’t scream “baby’s room.” This is a look that will grow with the little girl into her teen years.

This wallpaper pattern is by Engblad & Co., a Scandinavian company, and was bought from my favorite source for good quality, product knowledge, expert service, and competitive price – Dorota Hartwig at Southwestern Paint on Bissonnet near Kirby. (713) 520-6262 or dorotasouthwestern@hotmail.com. She is great at helping you find just the perfect paper! Discuss your project and make an appointment before heading over to see her.

The home is in the Oak Forest neighborhood of Houston.

Notice Anything? – Wonky Wallpaper

When I first looked at this picture in Better Homes & Gardens magazine’s December 2019 issue, I wondered why the installer had not positioned the circle motifs so they landed at the top of the wall.

Then I looked closer, and realized that he probably had – at a starting point in another part of the room. If you look at the crown molding line, you notice that the pattern is moving up the wall from left to right.

Often this is because of unplumb walls and/or unlevel ceiliing lines. But I looked closer and saw that the pattern is also crooked as it runs down the side of the window. Again, this could be because the whole house – walls, ceiling, doors, and windows – has shifted out of plumb (foundation issues – if you live in Houston, you know all about that!).

If the installer hung his paper true to plumb, it will always look crooked in house that is not plumb.

Sometimes, there are tricks you can do to make a pattern look straight, even if the house is wonky. Almost always, they involve pattern mis-matches in corners or at seams.

So it’s a toss-up as to which is the lesser of the two evils – pattern getting chopped off as it travels along the ceiling and moldings, or pattern mis-matches at the seams.

What I probably would have done in this case would be to position a half-circle at the top of the wall. This way, if the pattern starts tracking up or down, you don’t readily notice if the half-circle is a little taller or shorter, as compared to the top of a circle getting sliced off.

Measuring for a Mural – Add 2″ Extra to EACH Side

One common mistake that homeowners make when ordering custom-sized murals is that they will meticulously measure their wall to the 1/2 inch, and order the mural that size.

What they are supposed to do is to add 2″ of “bleed” to each side – a total of 4″ to each dimension.

This extra paper allows for trimming at the ceiling and baseboard (see photo), and it allows some wiggle room to accommodate crooked or unplumb walls and unlevel floors and ceilings.

Turbulent Intertwined Arboreals

I love this pattern. It’s swirly and ominous and woodsy and fun all at the same time. I hung it in the black and white colorway not long ago. It’s very similar to “Daintree” by Thibaut – As I like to say, for every cool pattern, there is someone making a knock-off.

This one is by York, one of my favorite brands, and is in their Dwell Studios line. It is a non-woven material, and can be hung by the paste-the-wall method or the paste-the-paper method (I used the latter). Non-woven does not expand, and can be hung immediately after pasting (as opposed to having to sit booked for a few minutes). I colored the edges of the paper with chalk before pasting, so the white backing would not show at the seams.

This went in the powder room of the same MidCentury Modern house as my three previous posts. The walls were equally unplumb, and the ceiling off-level, so it’s good that the pattern was forgiving.

David Hicks’s “Hexagon” in a Master Bathroom – Note the Freestanding Bathtub

David Hicks’s “Hexagon” pattern by Cole & Son is a well-loved design. I’ve hung it a number of times. Here it is in a large master bathroom in a very Mid-Century Modern home in the Piney Point (Villages) neighborhood of Houston.

Just this bathtub alcove, along with two small mirror walls over the his-and-hers vanities, received wallpaper.

Just the tub alcove by itself took me over six hours to hang (six single rolls). The complicating issues were unplumb walls, unlevel ceiling and soffit, a geometric pattern that the eye wants to see marching evenly across the walls, thick stiff paper that is hard to manipulate, ink that wants to crack and flake off the paper, complicated room lay-out, and … squeezing behind that tub to put wallpaper on the walls around it!

There are some spots where the pattern match is off a bit, and some areas where the crookedness of the walls is very evident (meaning that the pattern goes off-kilter). But overall, the room turned out great.

The design is called “Hexagon,” and is by David Hicks, designer for Cole & Son, a British company who has been manufacturing wallpaper for way more than a hundred years.

It’s a non-woven material that can be hung by the paste-the-wall method, but I chose to paste the paper, which made it more pliable, and which made it easier to get paste where it needed to be when going around the window areas and behind the tub.

Animal Blocks in a Baby’s Room

A new baby will soon be welcomed into the home of this young couple in the Houston Heights neighborhood called Norhill (or Woodland Heights). Mom wanted something gender-neutral, and found this colorful and adorable shapes-and-animals-in-blocks print on line at Lulie Wallace.

This went on just one accent wall of the room, but it is tame enough that it would work OK if put on all four walls.

I skim-floated the walls first, to smooth out the light texture on them, then followed with a primer coat of Gardz.

This wallpaper is a bit atypical, because it is pre-pasted, which means it comes with a thin layer of paste on the back that you activate with water (instead of having to roll paste on the back of every strip). I do like the pre-pasted papers. I do roll a light coat of paste on the wall, to augment the manufacturer’s pre-paste.

Another dissimilarity is that the paper comes packaged in individual strips, rather than traditional rolls with several strips rolled up together.

Even more unusual is that the strips were meant to be overlapped, instead of butted together. Overlapping the seams creates a vertical ridge under the paper which is somewhat visible. You also have to have an adhesive that will stick to the acrylic coating on top of the paper.

There are some good aspects to overlapping seams. For one, this makes for a very strong bond. For another, it takes stress of drying and shrinking paper off the seam and distributes it across that 3/4″ of overlapped area. In this 80-year-old house, with it’s many layers of paint with a history of not sticking to each other, this is important, because it greatly reduces the chances of the tension on the seams causing the paint layers to come apart, which would cause gapping at the seams. See previous post.

Another positive feature about overlapping the seams, and how that worked with this particular pattern, is that, in this 1930 home, with its unlevel ceiling and floor and its greatly-out-of-plumb walls, I was able to manipulate the strips of wallpaper so that they looked straight and plumb – even though they were actually hung quite off-plumb.

This wallpaper pattern is by Lulie Wallace, and was bought on line.

Cozy Accent Wall in a Master Bedroom in the Houston Heights

This small, two-color Moroccan lantern style wallpaper pattern is snugging up an accent wall in a master bedroom of an expanded and renovated home in the Heights neighborhood of Houston. Because the design is small and tight, it works as a background, rather than making a statement of its own. Once the new headboard arrives, the bed and bedding will take center stage.

The four windows, along with an unlevel ceiling line and unplumb windows and west wall, combined to create an installation challenge. It’s too complicated for me to explain, but I like to say, “It’s easy for you to look at this wall, but it was darned tricky for me to hang it!”

It was a somewhat thick non-woven material, and was intended to be hung using the paste-the-wall method – but I find the product much easier to work with when the paper itself is pasted. The pattern match was spot-on, and the seams were invisible.

The interior designer for this project was Stacie Cokinos. She does a lot of work with clients who are remodeling older homes, or who are building from the ground up. It’s great to have a designer on board from the beginning, to help choose fixtures, moldings, colors, flooring, appliances, etc. Stacie is one of my favorite designers to work for, too, because she is sharp, knowledgeable, organized, and on time. And her interiors are gorgeous, yet well suited for busy modern families.

Narrow Strip Coming Out of a Corner

See that narrow 3/8″ wide strip of wallpaper sitting on my table? That is to be my first piece coming out of this corner.

When you hang wallpaper around an inside corner, you don’t wrap it around the turn, but, rather, split the piece vertically so it wraps 1/16″ around the corner. Then the strip that you cut off is hung on the next wall, butted up into the corner. This avoids twists and wrinkles and bubbled areas caused by walls and corners that are not perfectly straight or plumb.

But when the piece that is to be the first strip on the new wall is this narrow, it presents problems, because it’s very likely to not hang straight, and you can’t hang the next strip of wallpaper against a crooked edge because you will get gaps and overlaps.

Adding to the dilemma is that this narrow strip had already been pasted. I had finished for the day, and intended to hang the window wall to the left the next day. The strip was already pasted, but I couldn’t hang it because of the aforementioned issues, plus, you are supposed to hang a whole wall at a time, because all of the strips have to “meld” together – you can’t hang a wet piece against a dry piece.

My solution was to wash the paste off this narrow strip, and hang it up to dry overnight. I just had to hope that the water would not cause it to expand too much, or warp, or other.

The next day, I pasted this narrow 3/8″ wide strip, along with the strip that would be placed next to it. Then I hung them together, as if they were all one piece of wallpaper. That way, I could work them into the corner snugly, and keep the seam between them nice and tight.

When coming out of corners, it’s common for the wallpaper to go off-plumb, because the corner might be out of wack. So you can (barely) see the red line of my laser level on the left edge of the strip of wallpaper, ensuring that the new strip falls plumb.