What Knockdown Is

Compound is sprayed onto a taped wall. After it skins over, a wide knife flattens the peaks. The result is a mottled, slightly flattened pattern — heavier than orange peel, more uniform than skip trowel.

Orange peel →  |  Old world →

When DIY Is Reasonable

• A closet or garage nobody will study in raking light
• A new wall that does not have to match 20-year-old knockdown
• You already know how to tape so the base is flat

When to Hire It

• A repair that has to disappear into the existing texture
• A living room or ceiling you will see every day
• Popcorn coming off and a new knockdown going on
• You have never run a hopper and compressor

A mismatch is hard to sand off. It is easier to hire the first time. Professional knockdown →

What Makes a Match Hard

Every house has a different splat size and flatten timing. Too wet and the pattern smears. Too dry and you drag crumbs. Too heavy and the patch reads as a cloud on the wall. That is a judgment call, not a printed recipe.

If You Still DIY a Small Area

• Finish the taping first — texture will not hide ridges
• Protect floors and fixtures; overspray travels
• Test on scrap board, not the feature wall
• Wear eye and dust protection
• Stop if the pattern does not match. Adding more usually makes it worse

We do not publish mix ratios or compressor settings here. Those change with product, weather, and the wall you already have.

Want It Done Once

Knockdown FAQs