How to hang wallpaper yourself: step by step
Wallpaper goes on last, after the trim and the final coat, on walls that are clean, flat, dry, and primed. Two very different jobs share one name: peel-and-stick, which most Los Angeles renters and condo owners buy, and traditional prepasted or unpasted paper hung with paste. You pick your path in step 1 and the rest of the guide follows it. The work that decides how it looks is not the hanging — it is the wall prep, the plumb line for the first drop, and the seams.
Difficulty 3 of 5 · 1 weekends · you can do this
Photo of your room, the look you pick, then this guide with the materials counted for your room.
What you need
- Wallpaper (peel-and-stick, prepasted, or unpasted)
- Wallpaper primer / sizer
- Wallpaper paste (unpasted paper only)
- Seam adhesive
- Lightweight spackling or joint compound
- Wallpaper smoothing tool (plastic squeegee)
- Snap-off utility blades, 18 mm
- Painter's tape
- Canvas drop cloth
Tools
- Non-contact voltage tester — Before any cover plate comes off. Not optional.
- Tape measure and pencil
- 4 ft level, or a laser level, or a plumb bob — For the plumb line before the first drop. A corner is never plumb — the line is.
- Utility knife with snap-off blades — Snap to a fresh edge before every cut.
- Wide taping knife or straightedge (6–12") — Held against the ceiling or the zoclo as a guide, it gives a straight trim cut and keeps the blade off the trim.
- Wallpaper smoothing tool
- Seam roller — Optional but cheap. A light pass sets a butted seam flat; heavy pressure squeezes the adhesive out and makes a shiny line.
- Paste brush or a 3/8" nap roller — Unpasted paper only.
- Water tray — Prepasted paper only, if its label calls for a water soak.
- Bucket, clean sponges, and lint-free rags — Adhesive left on the face dries shiny. Wipe every seam as you go.
- Step ladder
- Sanding sponge, medium and fine — For scuffing gloss and knocking down patches. Never dry-sand pre-1978 painted walls.
- Long straightedge or a large work table — Cutting drops on the floor works; cutting them on a table is faster and straighter.
Step by step
Step 1 of 12
Read the roll label and pick your path
Open one roll and read its label before anything else: it tells you peel-and-stick, prepasted, or unpasted; the pattern repeat; the match type (straight or drop); and whether drops are hung the same way up or reversed. Peel-and-stick means no water and no paste — you peel the backing as you go. Prepasted means the adhesive is already on the back and gets activated per the label, usually a water-tray soak and then a booking rest. Unpasted means you roll paste on the back yourself, with the paste the maker names. Write the repeat and the booking time on a piece of tape and stick it to the wall — you will use both numbers all day.
Safe to start?
- Breaker for this room's outlets and lights switched off, every outlet and switch checked dead with a non-contact tester
- Walls dry — no damp patch, no active water stain, no musty smell, no mold behind old paper
- No crumbling or drummy plaster, and no pre-1978 paint that would need aggressive dry sanding
- Any primer or sizer already on the wall has cured the full time printed on its label
- Room temperature and humidity within the range on the roll label
- All rolls on hand, same run or batch number, one extra roll in the pile
Step 2 of 12
Clear the room, kill the power, pull the cover plates
Move the furniture to the middle, lay canvas drop cloths, and take down anything hanging. With the breaker already off, hold the tester to every outlet and switch on the walls you are papering to confirm they are dead, then unscrew the cover plates only — the receptacles and switches stay in their boxes, untouched. Bag the plates and the screws together so they come back on the right box.
Step 3 of 12
Wash, fill, and sand the walls flat
Wash the walls with a mild detergent solution, rinse, and let them dry completely — grease and smoke residue stop adhesive cold. Fill every nail hole, dent, and screw pop with lightweight spackling, let it dry per the label, and sand flush with a fine sanding sponge. On glossy or satin paint, scuff the whole surface with a medium sanding sponge until the sheen is gone. If the wall is pre-1978 painted plaster or drywall, do not dry sand: mist the area and wet-sand lightly, keep the debris wet, and if a whole wall needs flattening, stop and get a certified renovator instead. Vacuum and wipe the dust off before you prime — primer over dust is primer that peels.
Step 4 of 12
Prime with wallpaper primer or sizer
Cut in the edges and roll the walls with a primer labeled for wallpaper, in a thin even coat. Do not skip this because the wall looks fine — the primer is what the adhesive holds onto and what lets the paper strip off later without tearing the drywall face. Let it cure the full time printed on the label, not the time it takes to feel dry. Do not hang anything before that time is up.
Step 5 of 12
Measure the walls and count your drops with the repeat
Measure each wall's width and the floor-to-ceiling height. Your drop length is the wall height plus 4" at the top and 4" at the bottom for trimming, rounded up to the next whole multiple of the pattern repeat on the label. Divide the roll length by that drop length and round down — that is how many usable drops you get per roll. Add up the drops you need wall by wall, include the short drops over doors and under windows, and confirm you have at least one spare roll before the first cut.
Step 6 of 12
Pick the starting corner and draw the plumb line
Start in the least visible corner — usually behind the door — because the last drop will not match the first one where they meet. Measure out from that corner the paper width minus 1/2" and mark the wall top and bottom; that 1/2" is what wraps around the corner. Draw a true plumb line through those marks with a level, a laser, or a plumb bob, in pencil, top to bottom. Then dry-fit the first strip against the line with painter's tape and step back: check the pattern height against the ceiling and confirm nothing important in the print lands right at the trim.
Ready for the first drop?
- Primer cured the full time on the label and the wall is dust-free
- Plumb line drawn floor to ceiling, checked with a level or laser — not measured off the corner
- Line set at the paper width minus 1/2" so the first drop wraps the corner
- First strip dry-fit and taped up, pattern position at the ceiling checked and approved
- Drop length confirmed: wall height + 4" top + 4" bottom, rounded up to a whole pattern repeat
- Booking or soak time from the roll label written down (prepasted and unpasted only)
- Fresh blade in the knife and a clean sponge and bucket within reach
Step 7 of 12
Cut the drops, match the pattern, and book if the label says to
Roll the paper face up on the table, cut the first drop to length, then use it to match the next: slide the roll along it until the pattern lines up edge to edge, and cut there. Number the backs in hanging order and keep them in a stack. For peel-and-stick, stop here — no water, no booking. For prepasted, wet the drop in the tray or per the label, then fold it paste-to-paste, loosely, without creasing the fold, and let it book for exactly the time the label gives. For unpasted, roll the paste evenly over the whole back, edges included, and book it the same way.
Step 8 of 12
Hang the first drop on the line and push the air out
Take the drop to the wall, line its edge up with the plumb line, and let 4" run over at the ceiling. Peel-and-stick goes on a foot at a time: unpeel the top of the backing, set the edge on the line, then work down, peeling and smoothing as you go. Pasted paper goes on whole and slides — nudge it until the edge sits on the line. Smooth from the center out to the edges and down with the smoothing tool, in overlapping strokes, pushing every bubble out to an edge rather than trapping it. Wipe any adhesive off the face and off the ceiling with a damp sponge before it dries.
Step 9 of 12
Butt the next drops and set the seams
Hang each following drop the same way, matching the pattern at the seam first and then sliding the whole drop until its edge just touches the previous one — butted, never overlapped, and never with a gap. Peel-and-stick will not bond to itself, so an overlap there is guaranteed to peel; pasted paper overlaps leave a ridge that catches the light. Give each seam one light pass with the seam roller after it has sat a few minutes, and sponge the seam clean. If a small bubble is still trapped after smoothing, pierce it with a fresh blade tip and press the air out through the slit.
Step 10 of 12
Turn the corners
Never carry a full drop around a corner — it will wrinkle and it will not stay plumb. At an inside corner, cut the drop so it wraps 1/4" to 1/2" onto the next wall, draw a new plumb line on that wall, and hang the next drop over the wrap, matching the pattern as closely as the corner allows. At an outside corner, wrap about 1" past the corner onto the flat and hang the next drop to a fresh plumb line, overlapping that wrap. Where the two layers overlap, you can cut a double seam: slice through both layers with a fresh blade against a straightedge, peel out both waste strips, and butt the edges back together.
Step 11 of 12
Cut the outlets and switches
With the breaker still off and the devices still in their boxes, hang the drop straight over the opening and smooth it down. Feel the box edges through the paper, then cut an X from corner to corner of the opening with a fresh blade, fold the four flaps in, and trim them back to the inside edges of the box. Cut a hair inside the box line so the cover plate covers the cut edge. Never pull a receptacle or a switch forward to tuck paper behind it, and do not loosen its screws — the plate goes back on exactly as it came off.
Step 12 of 12
Trim at the ceiling and the zoclo, then clean up
Press the wide taping knife into the corner at the ceiling and cut along its edge in one continuous pull with a fresh blade; snap the blade to a new edge and repeat at the baseboard, at the door casings, and at the window trim. Sponge the whole face and every seam with clean water and a lint-free rag while the adhesive is still soft, and rinse the sponge often. Put the cover plates back on their own boxes, switch the breaker on, and check every outlet and switch works. Walk the room once in raking light from a low lamp, looking for lifted seams — a dab of seam adhesive and a light roll fixes those now, not in a month.
Quality check
- Every drop plumb and the pattern matched across every seam
- Seams butted flat, no overlaps, no gaps, no shiny roller lines
- No trapped bubbles or wrinkles in raking light
- Ceiling and zoclo cuts straight and tight, no tears
- Outlet and switch cutouts fully covered by the plates, plates back on, power restored and tested
- Corner wraps flat, no lifted edges at inside or outside corners
- Face and seams wiped clean, no dried adhesive shine
- Leftover roll and its batch number kept for repairs
Common mistakes
- Hanging over bare, glossy, or chalky paint. Wallpaper primer is what decides whether the paper stays up and whether it ever comes off cleanly. On glossy or satin paint nothing grips — peel-and-stick lifts at the seams within days. On flat or chalky paint the adhesive pulls the paint loose instead. Scuff the gloss, prime with a wallpaper primer or sizer, and let it cure the full time on the label. Mistake #1 in this task.
- Buying rolls off the wall area alone. The pattern repeat on the label is wasted paper on every single drop: each drop has to start at the same point in the pattern, so you round the drop length up to the next whole repeat and throw the rest away. A 21" repeat on a 96" wall costs you almost a foot per drop. Count usable drops per roll before you buy, buy one roll extra, and check every roll has the same run or batch number.
- Starting the first drop off a corner or a door casing. No wall in a Los Angeles apartment is plumb, and no corner is square. If the first drop follows the corner, every drop after it leans a little more, and by the far wall the pattern runs visibly downhill. Draw a plumb line one paper-width-minus-1/2" from the corner and hang the first drop to that line, not to the corner.
- Overlapping the seams instead of butting them. Seams are butted — edge touching edge, no gap, no overlap. An overlap leaves a ridge that catches light down the whole wall, and on peel-and-stick it will not bond to itself and peels back within a week. Slide the wet drop until the edge just kisses the one before it, then set it with a light pass of the seam roller.
- Trimming with a dull blade. Wet paper tears instead of cutting the moment the blade dulls, and a torn ceiling line cannot be repaired — you hang that drop again. Snap to a fresh blade edge for every cut, hold a wide taping knife against the ceiling or the zoclo, and cut along the steel in one continuous pull.
Draft guide written from standard practice, not yet reviewed by a licensed pro. Follow product labels where they differ.
Get this job planned for your room