Textured walls were everywhere in the 80s, 90s, and 2000s. Orange peel, knockdown, popcorn, skip trowel — builders loved it because it was fast, cheap, and hid imperfect drywall work. But times have changed. Smooth walls are back, and homeowners are paying good money to get rid of that dated texture.
The good news? You don't need to sand every wall down to bare drywall. The fastest and most effective way to smooth textured walls is to skim coat over the existing texture using joint compound and a wide skimming blade. It's faster, creates less dust, and delivers a cleaner result than trying to sand texture off.
Why Skim Coating Beats Sanding for Texture Removal
Sanding textured walls creates an enormous amount of dust, takes forever, and often leaves an uneven surface because you're removing material unevenly. You can also sand through the paper face of the drywall if you're not careful, which creates a whole new set of problems.
Skim coating works by filling in the valleys between the texture peaks with joint compound, creating a smooth, uniform surface on top of the existing texture. It's additive rather than subtractive — you're building up to smooth rather than grinding down to it.
The result is a surface that's ready for primer and paint with minimal sanding — just a light pass with 150-220 grit to knock down any blade marks.
What You'll Need
- Wide skimming blade (24" to 40") — The wider the blade, the fewer passes and the faster the job. A 32" or 40" Plonic Pro skimming blade is ideal for covering textured walls efficiently.
- Small blade (10" or 14") — For corners, edges, and around fixtures.
- All-purpose joint compound — Pre-mixed, in 5-gallon buckets. You'll go through more than you think.
- Mixing drill with paddle — To get compound to the right consistency.
- Bonding primer (Gardz or similar) — Critical for adhesion over painted texture.
- Pole sander with 150-grit and 220-grit paper
- Drop cloths and painter's tape
Step 1: Prep the Walls
Preparation is more important on textured walls than on any other surface. The texture traps dust, grease, and cobwebs that will prevent compound from bonding properly.
Clean the walls. Wipe down with a damp cloth or sponge to remove dust and spider webs. For kitchen walls, degrease with TSP (trisodium phosphate) or a TSP substitute.
Knock down the high points. For heavy knockdown or skip trowel texture, take a wide drywall knife and scrape the wall at a low angle to flatten the tallest peaks. You're not removing the texture — just shaving off the tips so you're not filling deep valleys with compound. For orange peel, this step isn't usually necessary.
Prime the walls. This is the step most people skip, and it's the step that causes the most failures. Apply a coat of bonding primer like Gardz over the entire surface. Gardz penetrates and seals the texture, giving your compound a solid base to adhere to. Without it, the compound may delaminate or bubble, especially over glossy paint.
Let the primer dry completely (typically 1-2 hours) before applying compound.
Step 2: Mix Your Compound
For skim coating over texture, you want your compound slightly thinner than normal — think heavy cream or thick yogurt consistency. The texture creates an uneven surface, and thinner compound flows into the valleys more easily.
Add water gradually while mixing with a drill and paddle. Mix for 2-3 minutes until completely smooth. Let it slake (rest) for 5 minutes, then remix briefly.
How much compound will you need? For heavy texture, plan on two coats that are slightly thicker than a standard skim coat. A general rule: one 5-gallon bucket covers about 200-300 square feet for two coats, depending on texture depth. For a standard bedroom (roughly 400 sq ft of wall space), budget two buckets.
Step 3: First Coat — Fill the Texture
Load your skimming blade with compound and apply it in long, overlapping strokes. On the first coat, you're not trying to make it smooth — you're trying to fill the valleys in the texture.
Apply with more pressure than a normal skim coat. You want to push compound into the recesses of the texture. Hold the blade at about a 20-degree angle and pull firmly. The compound should fill the low spots while leaving a thin layer over the peaks.
Work in sections about 4 feet wide, top to bottom. Each stroke overlaps the previous one by an inch or two. Don't go back over partially dried areas — if you miss a spot, catch it on the second coat.
With a 32" or 40" skimming blade, you can cover a standard 8-foot wall section in just 3-4 vertical passes. The wide blade bridges the texture peaks, leaving compound in the valleys exactly where you need it.
Step 4: Light Sand Between Coats
Let the first coat dry completely (12-24 hours). Then do a light sand with 150-grit to knock down any ridges, drips, or blade marks. You don't need to make it smooth — just remove anything that would create bumps under the second coat.
Wipe the dust with a damp sponge before the next coat.
Step 5: Second Coat — Smooth It Out
The second coat goes on thinner than the first. By now, most of the texture is filled, and you're building a smooth, uniform surface over everything.
Apply in the opposite direction from your first coat (if you went vertical on coat one, go horizontal on coat two). This cross-hatch pattern catches any remaining voids and creates a flatter surface.
Hold your blade at a shallower angle (10-15 degrees) and use lighter pressure. You're feathering now, not filling.
Step 6: Final Sand, Prime, and Paint
After the second coat dries, sand with 180-220 grit using a pole sander. Use a raking light (a bright light held at a low angle to the wall) to reveal any remaining imperfections. Mark them with a pencil and spot-fill if needed.
Once you're satisfied, prime the entire surface with a quality primer (PVA for new compound, or a primer-sealer like Kilz 2 or Zinsser 1-2-3). Then paint.
The result should be smooth, uniform walls with zero trace of the original texture — even under the most critical lighting conditions.
Tips for Different Texture Types
Orange Peel
The easiest texture to cover. The bumps are small and uniform, so one coat often fills most of it. Two thin coats usually deliver a perfect result.
Knockdown
Medium difficulty. The flat plateaus are easy, but the recessed areas between them need a bit more compound. Focus on filling the valleys on coat one, then smoothing on coat two.
Heavy Skip Trowel or Santa Fe
The most challenging. These textures have significant depth. Scrape the peaks down first, then plan on two heavier coats. Some areas may need a third coat.
Popcorn (on walls — not ceilings)
Scrape first. Popcorn texture is too deep to skim coat over efficiently. Wet it with a pump sprayer, scrape it off with a wide knife, then skim coat the scraped surface.
Common Mistakes
- Skipping primer: The number one cause of skim coat failure on textured walls. Always prime.
- Compound too thick: Over textured surfaces, thick compound traps air and creates bubbles. Go thinner than you think.
- Trying to get it perfect in one coat: Two thin coats always beat one thick coat.
- Using a narrow knife: A 6" or 12" knife over heavy texture creates hundreds of edge lines and takes forever. Use a 24" blade minimum — 32" or 40" for production work.
How Long Does It Take?
For a standard bedroom (about 400 sq ft of wall area) with orange peel or light knockdown texture:
- Prep and prime: 1-2 hours
- First coat: 1-2 hours
- Dry time: 12-24 hours
- Sand, second coat: 1-2 hours
- Dry time: 12-24 hours
- Final sand: 30 minutes
Total active work time: about 4-6 hours spread over 2-3 days. With a wide skimming blade, the actual coating goes fast — most of the time is waiting for compound to dry.
Ready to tackle your textured walls? Shop Plonic Pro skimming blades — available in 10" to 40" sizes, all featuring 0.5mm European stainless steel with the perfect flex for skim coating over texture.