GA-214 · ASTM C840 · Levels 0 through 5

The six drywall finish levels

A finish level is not a quality grade. It is a scope of work. A perfectly executed Level 3 is not worse work than a Level 5 — it is a different, correctly specified amount of work.

The same six levels appear in GA-214 and in ASTM C840 — a spec that says ASTM C840 Level 4 and one that says GA-214 Level 4 are asking for the same thing. This page covers what each level buys, which conditions force you up a level, and how an argument about a finished wall actually gets settled.

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The ladder

From bare board to one continuous surface

Every rung below is the same strip of wall: the same two joints, the same three columns of fasteners. The only thing that changes is what has been done to them. These are drawn in CSS rather than photographed, but what they show is literal — each coat is wider than the last, and Level 5 covers everything.

Finishing labor—

Level 0

Bare board. No taping, no finishing, no accessories.

What the standard requires

No taping, finishing or accessories required.
Butt and tapered seams left open, screw dimples open, corners raw.
This is hang only. Every other level is priced above this one.

Use it when

Temporary construction.
The final decoration has not been decided yet.
A shell somebody else will finish later, on a schedule nobody has set.

Not when

Anything that gets painted.
Anything anyone is going to look at.

Finishing labor0.30×

Level 1

Tape embedded in compound and nothing else. The fire-and-smoke level.

What the standard requires

All joints and interior angles have tape embedded in joint compound.
Excess joint compound and tool marks are acceptable.
Fastener heads need not be covered.
Accessories are not required unless the project documents call for them.

Use it when

Smoke barrier joint treatment.
Plenum space above a suspended ceiling.
Attics and other concealed areas.
Anywhere the assembly is generally concealed and not open to public view.

Not when

Any surface that will be painted or seen.
Anywhere a hand is going to run along the wall.

Finishing labor0.50×

Level 2

Tape wiped down, one coat on the screws. Clean, flat, plainly unfinished.

What the standard requires

Tape embedded in joint compound and wiped with a knife, leaving a thin coating over all joints and interior angles.
Fastener heads and accessories covered with one separate coat.
Surface free of excess joint compound. Tool marks are acceptable.

Use it when

Substrate for tile.
Garages.
Warehouse and storage areas where surface appearance is not a concern.

Not when

Anywhere the wall itself is the finish.
Under paint in a living space — you will see every joint.

Finishing labor0.75×

Level 3

Tape plus one coat on joints, two coats on screws. The base for medium and heavy texture.

What the standard requires

Tape embedded and immediately wiped, leaving a thin coating over all joints and interior angles.
One separate coat of joint compound over all joints and interior angles.
Fastener heads and accessories covered with two separate coats.
The surface is smooth and free of tool marks.

Use it when

Heavy or medium texture, sprayed or hand applied, before final painting.
Heavy-duty or commercial-grade wallcovering as the final decoration.

Not when

Smooth wall designs.
Light textures — a light orange peel over a Level 3 will show joints.
Non-continuous textures.
Lightweight wallcoverings.

Finishing labor1.00×

Level 4

Residential default

Three passes on a flat joint, three coats on every screw. The residential default.

What the standard requires

Tape embedded and immediately wiped, leaving a thin coating over all joints and interior angles.
Two separate coats of joint compound over all flat joints.
One separate coat over interior angles.
Fastener heads and accessories covered with three separate coats.
The surface is smooth and free of tool marks.
In practice: a tapered joint finishes roughly 14 to 20 inches wide, a butt joint wider. Those widths are trade practice, not a number in the standard.

Use it when

Smooth wall designs decorated with flat paint.
Light textures and non-continuous textures.
Most wallcoverings.

Not when

Non-flat paint. GA-214 attaches the warning to Level 4 itself: non-flat or dark and deep tone paints are not recommended, refer to Level 5.
Dark or deep-tone color, for the same reason.
Critical lighting — a wall that reads flawless at noon can be a relief map at five.
Unbacked vinyl wallcovering, which GA-214 also does not recommend over this level.

Finishing labor1.55×

Level 5

Sheen, deep colour, critical light

Everything Level 4 has, plus a skim over the entire surface, so the wall is one material instead of two.

What the standard requires

Tape embedded and immediately wiped, leaving a thin consistent coating over all joints and interior angles.
Two separate coats of joint compound over all flat joints.
One separate coat over interior angles.
Fastener heads and accessories covered with three separate coats.
A skim coat of joint compound, or a material manufactured especially for that purpose, applied to the entire surface.
The surface is smooth and free of tool marks.

Use it when

Non-flat paint — any sheen or gloss.
Dark or deep-tone paint.
Critical lighting conditions.
Glossy decorative finishes.
Unbacked vinyl wallcovering.

Not when

Behind tile. A heavy build of compound under thinset is worse than a thin one, not better.
Under medium or heavy texture, which conceals everything a Level 5 is buying.
Garages, closets and utility rooms, where the light is ordinary and the paint is flat.

About the drawings: they are CSS diagrams, not photographs. The oblique light washing across each strip is deliberate — that is exactly the light that makes the difference between a Level 4 and a Level 5 visible, and the light that turns a wall that read flawless at noon into a relief map at five.

The labor bar is finishing labor relative to Level 4 = 1.00. It is a trade estimate, not a published figure, and it is not a price. Real numbers come off a site visit.

The three triggers

The three conditions that force a Level 5

There are exactly three. If any one of them is present, Level 4 is the wrong specification — and Level 4’s own text says so and points at Level 5. That is not our opinion; it is printed in the standard, on the Level 4 page.

Non-flat paint

GA-214 draws this line with a gloss meter, which is unusually specific and very useful in an argument. Flat paint is manufactured to produce 0 to 5 gloss units at a 60 degree angle (and 0 to 10 at 85 degrees). Anything above that is non-flat. Eggshell, satin, semi-gloss and gloss are obviously over the line. So are a great many designer matte paints and most washable or scrubbable matte kitchen-and-bath products, which sit just above 5 GU at 60 degrees. Matte is not the same thing as flat. If the paint schedule says eggshell throughout, the standard says Level 5 throughout.

Dark or deep-tone paint

GA-214 puts it plainly: non-flat and dark or deep tone paints highlight minor surface differences, whereas textures conceal them. Deep colors are mixed into a deep base that carries very little white pigment, so it hides less and reads glossier than the same sheen in an off-white. A charcoal or deep navy wall in flat paint will show joints that the identical wall in a light flat would never reveal. Homeowners do not know this, and they almost always find out after the walls are painted.

Critical lighting

GA-214 describes strong side lighting from windows or surface-mounted fixtures, and surfaces flooded with natural or artificial light, where strong oblique light exaggerates minor surface differences. AWCI's summary of the physics is the honest one: no wall is perfectly flat, and light casting across the surface at just the right angle will make a good wall look bad. Around here that means west-facing great rooms with big sliders, recessed cans set six to twelve inches off a wall (that is wall grazing, and it is the most common self-inflicted wound in custom residential), linear cove and toe-kick LED, under-cabinet light washing down a return wall, stairwell clerestories, and skylights on a smooth ceiling. If the lighting package is not ordered yet, wall washing instead of wall grazing is the single most useful thing a drywall contractor can tell a designer.

Matte is not the same thing as flat, and this surprises almost everybody

GA-214 draws the line with a gloss meter, which is unusually specific and very useful in an argument: flat paint is manufactured to produce 0 to 5 gloss units at a 60 degree angle. Anything above that is non-flat. Eggshell, satin, semi-gloss and gloss are obviously over the line. So are a great many designer matte paints and most washable or scrubbable matte kitchen-and-bath products, which sit just above 5 gloss units at 60 degrees.

Put plainly: if the paint schedule says eggshell throughout, the standard says Level 5 throughout. That is the moment to decide it — before the first sheet is hung, not after the painter has rolled the first coat.

The inspection standard

A wall is judged from five feet back

This is the single most useful fact on the page, and it is well sourced. A finished wall is evaluated from a minimum distance of five feet perpendicular to the surface — PDCA Standard P1-09 puts it at thirty-nine inches, or one meter, or more — with lighting representative of normal conditions in both intensity and location, without magnification, from the normal viewing position. Nobody inspects a wall with a flashlight held flat against it. Raking a work light down a finished wall will find something on any wall ever built, including a perfect one. The corollary keeps this honest, and we say it out loud: if the room's permanent lighting is a raking wall wash, then raking light is the normal condition for that room — and that is exactly the case where GA-214 says specify a Level 5 up front, before anyone hangs a sheet.

The short version

A minimum of five feet, perpendicular to the surface. PDCA P1-09 puts it at thirty-nine inches, or one meter, or more.
Under lighting representative of normal conditions, in both intensity and location.
Without magnification, from the normal viewing position for that wall.
The honest inversion: if the room’s permanent lighting is a raking wall wash, then raking light is the normal condition for that room — and that is exactly the case where GA-214 says specify a Level 5 up front.

Where the sources disagree

Is a Level 5 knife-applied or spray-applied?

Both comply under the current standard, and the disagreement is real rather than imaginary. We are not going to pretend there is a winner. We are going to name the method in the proposal.

GA-214-2021 permits both

The current edition defines skim coating broadly: the objective is total coverage of the entire surface, typically accomplished with a broad knife forcing material into the surface pores and shearing off the excess, with no specific mil thickness constituting a proper skim coat. The standard then states that the process may also be accomplished with spray-applied materials or specialty products formulated for the purpose.

Why the 1996 edition is still in the room

The reason older-trained architects still read Level 5 as knife-only is that the 1996 edition did not mention spray application at all. It called for a thin skim coat of joint compound or a material manufactured especially for this purpose, and stopped there. Both readings come from a real document. Neither side is making it up.

The whole disagreement, uncut

Ask three people how a Level 5 is applied and you will get two answers, and the disagreement is real rather than imaginary. GA-214-2021 defines skim coating broadly: the objective is total coverage of the entire surface, typically accomplished with a broad knife forcing material into the surface pores and shearing off the excess, with no specific mil thickness constituting a proper skim coat — and the standard then states that the process may also be accomplished with spray-applied materials or specialty products formulated for the purpose. So under the current standard both methods comply. The reason older-trained architects still read Level 5 as knife-only is that the 1996 edition did not mention spray application at all; it called for a thin skim coat of joint compound or a material manufactured especially for this purpose, and stopped there. Both readings come from a real document. What a veteran will tell you next is that the method matters less than the two things either side of it: the quality of the Level 4 underneath, and the light that is going to hit the wall. A manufacturer of spray-applied primer-surfacer says as much — its product achieves a Level 5 only when it goes over a Level 4 finish, so nobody is spraying a problem away. Finishers who prefer the knife have a fair objection too: a sprayed film follows the surface it lands on, where a blade can bridge and level a subtle crown or recess. Our position is to name the method in the proposal rather than write Level 5 and leave the argument open. If an architect's specification prohibits spray-applied surfacers, that is the architect's call, and it prices differently.

Who specifies it

In residential, usually nobody

GA-214 puts this on the design professional, explicitly and repeatedly: indicate the areas that meet the criteria on the finish schedule or the plans, and specify the mock-up procedure and construction details in the project documents. Note that the standard contemplates mock-ups at Levels 3, 4 and 5 — on a high-end house with smooth walls and an architectural lighting package, a paid mock-up panel, finished and primed and painted with the actual specified paint, viewed under the actual specified fixtures, is the most effective dispute-prevention tool that exists. In residential, though, nobody usually specifies anything. There is no default level in the standard; the absence of a spec is simply an absence, and what fills the gap after the fact is whatever the unhappy party says it should have been. So we specify it ourselves, in writing, with the assumptions stated: Level 4 throughout, assuming flat paint and no wall-grazing fixtures, with a Level 5 upgrade priced separately for the rooms that need it. Then everybody is arguing from the same piece of paper, before the argument happens.

Sensible starting points

There is no default in the standard

There is no default in the standard, but there are sensible starting points. Production housing with medium or heavy texture: Level 3 under the texture, and Level 4 under a light orange peel — getting that one backwards in either direction is the most common error in tract work. Production housing with smooth walls: Level 4 as a minimum, Level 5 in any room with a glass wall, wall-wash cans or a deep accent color. Custom residential with smooth walls: Level 5 as the baseline in the public rooms, Level 4 fine in closets, utility and garage. Commercial tenant improvement: Level 4 generally, Level 5 at lobbies, elevator lobbies, conference rooms and any cove-lit or wall-washed surface, Level 2 behind tile, Level 1 above the ceiling in rated and smoke-barrier assemblies. That last one is where contractors routinely over-finish and owners routinely overpay — nothing above a lay-in ceiling needs to look like anything.

We write it down even when nobody else did

Our proposal names the level, the rooms it applies to, and the assumptions behind it: what paint sheen and what lighting we are assuming. If those assumptions turn out to be wrong, we would rather re-price it in week one than discuss it in month six. It is the same reason we walk the framing before we hang anything.

How we work Textures

Questions

Straight answers

Is Level 5 better than Level 4?

No. It is more work, which is not the same thing. A finish level is a scope, not a quality grade, and a perfectly executed Level 3 under a knockdown texture is not worse work than a Level 5 — it is the correct amount of work for that wall. Most homeowner disputes about quality turn out, on inspection, to be disputes about scope that nobody wrote down.

What level do I need?

Answer three questions and the standard answers it for you. What sheen is the paint? How dark is the color? What is the light going to do to the wall? Flat paint, mid-tone color, ordinary lighting: Level 4. Any sheen above flat, any deep or dark color, or any strong raking light: Level 5. Medium or heavy texture: Level 3. Tile going over it: Level 2. Above a suspended ceiling: Level 1.

We are painting eggshell. Does that change anything?

Yes, and this is the one that surprises people. GA-214 defines flat paint as 0 to 5 gloss units at 60 degrees. Eggshell is above that line, which makes it non-flat, and Level 4's own text says non-flat paints are not recommended and refers you to Level 5. The same is true of a lot of paint sold as matte — modern washable matte products often measure just over the line. If the sheen is going up, tell us before we start, not after the painter does.

What about one dark accent wall?

Price that wall at Level 5 and be done with it. Deep-base colors are mixed with very little white pigment, so they hide less and read glossier than the same sheen in a light color, and they will show joints that the rest of the room will not. One wall of extra skim is cheap. Repainting a finished room is not.

Can you spray a Level 5, or does it have to be hand skimmed?

Both comply under the current standard, and we will tell you which one we are doing. GA-214-2021 says a skim coat is typically applied with a broad knife that forces material into the surface and shears the excess, and then says the process may also be accomplished with spray-applied materials or specialty products made for the purpose. The 1996 edition did not mention spraying, which is why some architects and older specs still read Level 5 as knife-only. Neither side is making it up. What actually decides how the wall looks is the Level 4 underneath and the light on it, not the tool. If your spec prohibits spray-applied surfacers, say so and we will price it hand-applied.

My painter says the drywall is bad. How do we tell who is right?

Agree on the inspection standard before anyone argues. A finished surface is judged from at least five feet back — thirty-nine inches or one meter under PDCA's standard — under lighting representative of normal conditions, without magnification, from a normal viewing position. Not with a work light raked down the wall, which will find something on any wall ever built. The honest exception: if the room's permanent lighting is a wall wash, then raking light is normal for that room, and the right answer was to specify a Level 5 before anything was hung.

Why does Level 5 cost so much more than Level 4?

Because the added scope is not a little extra mud on the joints. It is a full additional application over one hundred percent of the surface, a full additional sanding pass over one hundred percent of the surface, and all the dust and protection that go with it. It also means the Level 4 underneath has to be better than a Level 4 that was going to be textured, because a Level 5 leaves nowhere to hide. As a rough shape, if Level 4 finishing labor is 1.0, Level 5 runs somewhere around 1.3 to 1.8 — but that is a trade estimate, not a published figure, and it moves with ceiling height, cut-up and access. We price the job after we have seen it.

Nobody put a finish level on our plans. What happens then?

Usually an argument, months later. There is no default level in GA-214 — the absence of a specification is just an absence, and after the fact it gets filled in by whoever is unhappiest. So we put it in the proposal ourselves, with the assumptions written down: which level, in which rooms, assuming what paint sheen and what lighting. If the assumptions turn out to be wrong we would rather re-price it in week one than discuss it in month six.

What level goes behind tile?

Level 2, and in a shower or tub surround it is going on a tile backer board rather than on gypsum wallboard at all. Building a Level 4 behind ceramic tile is money set on fire, and a heavy build of joint compound under thinset is arguably worse for the tile than a thin one.

What about above a drop ceiling, in a plenum or an attic?

Level 1. The tape is there to close the joint against smoke passage in a rated or smoke-barrier assembly, not to look like anything, and excess compound and tool marks are acceptable at that level by definition. Paying to finish a surface nobody will ever see is one of the most common ways owners overspend on a tenant improvement.

Should we do a mock-up?

On a smooth-wall custom house with an architectural lighting package, yes, and GA-214 contemplates exactly that at Levels 3, 4 and 5. A sample panel finished to the specified level, primed, and painted with the actual paint out of the actual can, viewed under the actual fixtures, settles in an afternoon what otherwise gets settled at the end of the job with everyone tired and the furniture already in.

Will a Level 5 fix bad framing?

No. A skim coat is a thin film over what is already there. Crowned studs, framing out of plane, a wall that bellies between two corners — those are fixed at framing and at hang, with shims and back-blocking and layout, or they are not fixed at all. That is also why we walk the framing before we hang anything and tell you what we found.

Let us settle the level before anything is hung

Three questions settle almost all of it: what sheen is the paint, how dark is the colour, and what is the light going to do to that wall. Tell us those three and we will tell you the level — in writing, with the assumptions written next to it.

Dino Berg has held CSLB license #989989 since 2014 and works out of Carlsbad across North County San Diego and South Orange County.

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