Understanding your result
The headline gives the number of passes for the level you chose, or “Too low” if the level is below what the Gypsum Association recommends for the paint and light you described. The line under it gives the compound and the days for your area.
The tiles give the compound with the pail count, the calendar days, and the recommended level for your surface. The table lists the passes one by one, the compound arithmetic, the drying time and the sanding, so the level is something you can check on site: a finisher who says “Level 4” should be able to point to four passes.
The bars compare every level on the same area. That is the useful view when a quote is being negotiated: the difference between Level 4 and Level 5 on a 700 sq ft room is about 3 gallons of compound and a day, not a different job. If you are not sure which level a room needs, the finish level selector asks the questions; the joint compound calculator turns the level into pails or bags of the compound you use, and the skim coat calculator sizes the Level 5 pass alone.
How we calculate this
The levels and what they include are from GA-214, Recommended Levels of Gypsum Board Finish, and are listed in the levels of finish table. The compound per level is anchored to USG’s 9.4 gallons per 1,000 sq ft for complete finishing (Level 4) and pro-rated by the passes, the same figures the compound calculator uses. One drying day per pass is the manufacturers’ guidance of about 24 hours per coat of ready-mix in normal conditions; the compound drying time calculator adjusts it for temperature, humidity and coat thickness.
The recommendation is the lowest level GA-214 suggests for each surface. It is a minimum, not a ceiling: a Level 5 wall under flat paint is never wrong, only more than needed.
The assumptions behind the numbers
| Assumption | Default | Where it comes from |
|---|---|---|
| Levels and passes | Levels 0 to 5 | Gypsum Association GA-214 |
| Compound at Level 4 | 0.94 gal per 100 sq ft | USG published coverage (9.4 gal per 1,000 sq ft) |
| Other levels | 0.24 / 0.42 / 0.70 / 1.40 gal per 100 sq ft | Pro-rated by passes; see the coverage table |
| Drying | About 24 h per pass | Manufacturer guidance for ready-mix at 70 °F and 70% humidity (USG) |
| Level for gloss paint or raking light | Level 5 | GA-214 recommendation |
| Level under heavy texture | Level 3 | GA-214 recommendation |
Assumptions last reviewed October 8, 2026.
The planner gives finishing time for one crew working the whole area each day; it does not schedule the hanging, the priming or a crew that splits a large house into zones. That is the project schedule. It also does not price labour, which the cost calculators do. What each level looks like on a wall, and how to judge one, is in the guide to the levels of finish; why the days are mostly drying is in the drying times guide.
Two worked examples
A 700 sq ft living room, eggshell paint, a wall of windows
Level 4 chosen, raking light ticked.
- Level 4: four passes, 700 × 0.94 ÷ 100 = 6.6 gallons, two pails, about 5 days
- Raking light from the windows raises the recommendation to Level 5
- Too low: this room needs Level 5, 9.8 gallons and one more day
The skim coat is 3.2 extra gallons and a day; skipping it on the window wall is how a new room ends up with every joint visible at four in the afternoon.
1,100 sq ft at Level 3 under a knockdown texture
Setting compound for the tape coat.
- Three passes: tape coat, thin coat, second coat
- Compound: 1,100 × 0.70 ÷ 100 = 7.7 gallons, two pails
- Days: 2 drying (the setting tape coat dries in hours) + 0.5 sanding + 0.5 start = 3 days
- Level 3 suits a heavy texture, and the planner says so
Going to Level 4 under the same texture would add 2.6 gallons and a day for a pass the texture covers.
Where to find your inputs
Level. From your quote or your plan; if the quote does not name a level, ask which one, and ask what “finished” includes.
Area. The area of board, from the sheet count times the sheet area, or from the room sheet calculator.
Surface. The paint sheen from the painter’s spec, or the texture you plan; “nothing” for spaces that will be covered or never seen.
Raking light. Stand in the room at the time of day it gets the most sun along a wall; if the light skims the wall, tick it.
Common mistakes
- Accepting “taped and finished”. It is not a level. Ask for the GA-214 level in writing.
- Level 4 under gloss paint. Gloss shows every ridge. Level 5, or a lower sheen.
- Paying for Level 5 under heavy texture. The texture hides the work. Level 3.
- Rushing the drying. A coat over damp compound shrinks and cracks. The days are the job.
- No primer. Paper and compound absorb paint differently at every level. Prime first.
- Judging the finish with the overhead light on. Use a work light held flat against the wall; that is how raking light will see it.
Questions people ask
- What are the levels of drywall finish?
- The Gypsum Association's GA-214 defines six. Level 0 is board only. Level 1 is tape embedded in compound. Level 2 adds a thin coat over tape and fasteners. Level 3 adds one more coat. Level 4 adds a finish coat and is the standard for painted walls. Level 5 adds a skim coat over the whole surface.
- Which drywall finish level do I need?
- Level 4 for walls and ceilings painted flat, matte or eggshell. Level 5 where a wall gets raking light from a window or wall-washer lights, or will be painted semi-gloss or gloss. Level 3 under heavy texture, Level 2 in garages and behind tile, Level 1 above ceilings and in service spaces.
- How much more does Level 5 cost than Level 4?
- In compound, about half again: 1.40 gallons per 100 sq ft against 0.94. In labour, one more pass over every square foot of wall rather than only the joints, the biggest single step between levels; the hang-and-finish labor calculator prices it for your area. In time, one more drying day.
- How many days does a Level 4 finish take?
- With ready-mixed compound, each pass needs about 24 hours to dry at 70 °F and 70% humidity (USG), so Level 4's four passes are four drying days, plus half a day of sanding and a start day: about five days from bare board to primer. A setting-compound tape coat saves a day.
- Is Level 3 enough for painted walls?
- Not for flat-painted walls in normal light; joints and fastener heads show through. Level 3 is meant for walls that will get a medium or heavy texture, which hides what the fourth pass would have smoothed.
- What is raking light?
- Light that strikes a wall at a low angle: sunlight from a tall window beside the wall, a long hallway lit from the end, wall-washer fixtures, or a skylight. It throws a shadow from every ridge and dip, which is why GA-214 recommends Level 5 for those walls.