Drywall finishing is ranked on a scale from Level 0 to Level 5. Each level describes how much taping and joint compound has been applied, and how ready the wall is for paint, texture or other decorative finishes. The scale comes from GA-214, Levels of Finish for Gypsum Panel Products, a recommended specification developed by the Gypsum Association together with several major drywall, ceiling and painting trade groups.
Using finish levels gives contractors, finishers, painters and homeowners a common way to describe the work. When everyone agrees on the level before the job starts, there are fewer surprises once the paint goes on. In Canada, commercial specifications usually refer to GA-214, and many residential crews use the same terms even when the level is not written into the contract.
Below, we explain what each level involves, where it is typically used, and which tools and materials can help you achieve it.
The finish levels of drywall at a glance
At Level 0, the gypsum board has been hung but no finishing has been done.
At Level 1, tape is embedded in joint compound at the joints and inside corners.
Level 2 adds a thin coat of compound over the tape, along with one coat over fasteners and accessories.
Level 3 adds another coat to the joints and inside corners, and a second coat over fasteners.
Level 4 includes two coats over the tape on flat joints, one on inside corners and three on fasteners, followed by sanding.
Level 5 includes all of the Level 4 steps, plus a thin skim coat over the entire surface.
Level 0
Level 0 means that no taping or finishing has been done. The drywall has simply been fastened to the framing. This level is generally used for temporary construction, or when the final decoration has not yet been decided. Since no finishing takes place, no taping tools or compounds are required at this stage.
Level 1
A Level 1 finish is the most basic level of finishing. Tape is embedded in joint compound at all joints and interior angles, and the surface does not need to be smooth. Tool marks and ridges are acceptable because the wall will not be seen.
Level 1 is commonly used above suspended ceilings, in attics, in plenum areas and in building service corridors. It is also often used for fire taping in rated assemblies that will remain concealed. However, the requirements for a fire-rated assembly should always be confirmed before the work begins.
To complete Level 1, you will need paper or fiberglass mesh tape, a 6" taping knife or a banjo, and a joint compound. A setting-type compound is a good choice at this stage. Unlike ready-mixed compound, which dries through evaporation, setting-type compound hardens through a chemical reaction. This means humidity and cool temperatures on site have less effect on the work. Powdered compounds should be mixed thoroughly, and a drill-mounted paddle from our mud mixing tools makes this much faster.
For larger projects, CSR carries a full range of joint tapes and drywall banjos, which apply tape and compound in a single step.
Level 2
At Level 2, tape is embedded in joint compound and then wiped with a knife, leaving a thin coat of compound over it. Fastener heads and corner bead also receive one coat. Some tool marks and ridges are still acceptable at this level.
Level 2 is typically used in garages, warehouse storage areas and other spaces where appearance is not a major concern. It is also used where gypsum panels serve as a base for tile, since the tile and setting material will cover the surface.
An all-purpose joint compound, a mud pan and a few taping knives, usually 6" and 10", are generally enough to complete a Level 2 finish.
Level 3
A Level 3 finish adds one more coat of joint compound to all joints and inside corners. Fastener heads and accessories receive a second coat. The surface should be smooth and free of tool marks and ridges, although the joints may still be visible under paint.
For this reason, Level 3 is intended for surfaces that will receive a medium or heavy texture, either sprayed or hand-applied, or a heavy-grade wallcovering. GA-214 does not recommend Level 3 for walls that will have a smooth painted finish. If you are planning a textured finish, our texturing tools include hopper guns and knockdown knives.
Level 3 is also the stage where many finishers start using flat boxes. A 10" or 12" flat box applies an even coat of compound in a single pass, which improves speed and consistency on larger projects. A lightweight compound is a good match, as it shrinks less and is easier to sand.
Some finishers also add a colouring gel such as Tapers Tint to their compound. The colour makes it easy to see where compound has been applied and which areas still need touch-up after sanding.
Level 4
Level 4 is the most common finish for homes and offices. Flat joints receive two coats of joint compound over the tape, inside corners receive one coat, and fastener heads and accessories receive three coats. All joint compound is then sanded smooth.
A Level 4 finish is suitable for flat or low-sheen paints, light textures and wallcoverings. GA-214 notes that Level 4 is not recommended where non-flat or dark, deep-tone paints will be applied. Higher-sheen and darker paints tend to highlight the small differences in texture and absorption between the joint compound and the paper face of the gypsum board.
Contractors who complete a large volume of Level 4 work often use automatic taping tools to improve efficiency, along with corner rollers to set inside corners before finishing. Crews that are not ready for a full automatic set often start with semi-automatic taping tools such as compound tubes and applicators. Because every joint must be sanded, a dust-free sander connected to a drywall vacuum can greatly reduce cleanup. When compound is applied through a box or tube, a compound designed for machine application will flow more smoothly and leave fewer air pockets.
Level 5
A Level 5 finish is the highest level of drywall finishing. It includes all of the steps in Level 4, followed by a thin skim coat of joint compound, or a material made for this purpose, over the entire surface. The skim coat covers the joints, fasteners and the paper face of the board alike, creating a uniform surface for paint. GA-214 describes Level 5 as the most effective way to achieve a uniform surface and reduce the chance of joints showing through the final decoration.
Level 5 should not be confused with Level 5 Tools, a manufacturer of professional taping and finishing equipment. CSR carries the full line of Level 5 taping tools, which are used by finishers on projects at every level.
A Level 5 finish is recommended in two main situations. The first is when gloss, semi-gloss or enamel paint will be used. The second is when the wall or ceiling will be exposed to critical lighting. Critical lighting refers to light that strikes a surface at a low angle, such as light from large windows, skylights or recessed fixtures placed close to a wall. Under these conditions, joints can show through the paint, an effect known as "flashing," and small ridges become much easier to see.
The skim coat can be applied in several ways. Some finishers roll the compound on with a mud roller and smooth it with a wide smoothing blade, while others spray it on or apply it with a trowel. The roll-and-blade method is generally the easiest to learn and produces a consistent thickness across the surface.
Most ready-mixed compounds can be used for skim coating once they are thinned slightly, and lightweight all-purpose compounds work well. For projects inside occupied homes, a dust-control compound is also worth considering. When it is sanded, the dust falls to the floor instead of remaining in the air, which makes cleanup easier.
Drywall finish Level 4 vs 5: how to decide
Choosing between Level 4 and Level 5 usually depends on two factors: the type of paint and the lighting in the room.
If the walls will be painted with a flat or eggshell finish and the room has typical lighting, a Level 4 finish will generally provide good results. If the project calls for semi-gloss paint, or the room has large windows or other sources of critical lighting, a Level 5 finish is the better choice. While a Level 4 finish may still be acceptable in some of these rooms, correcting defects after painting requires additional skim coating, priming and repainting.
A simple way to evaluate a wall before priming is to hold one of our work lights flat against the surface so that the light shines across it. Any ridges, edges or joints that become visible under this light are likely to show once the room receives natural light at a low angle. On larger projects, the Gypsum Association also recommends building a jobsite mock-up so that everyone can approve the finish under real lighting before the full job begins.
It is also not necessary to finish an entire home to Level 5. Many contractors specify Level 5 only on the walls most affected by lighting, such as window walls, stairwells and long hallways, and finish the remaining areas to Level 4. This approach helps control costs while still achieving a quality result where it matters most.
How many coats of drywall compound do you need?
Under GA-214, a Level 4 finish includes a tape coat plus two additional coats on flat joints, and three coats over fasteners. A Level 5 finish adds one skim coat over the full surface. In practice, butt joints and areas with damaged or uneven board may need an additional pass, which is a normal part of the finishing process.
Several practices can help each coat perform well. Thin coats of compound dry faster and are less likely to shrink or crack than heavy ones. Setting-type compound is well suited for the first coat and for deep fills, because it hardens quickly with very little shrinkage. Lightweight or all-purpose compounds are better choices for the finish coats, since they are easier to sand. Each coat should also be allowed to dry completely before the next is applied, particularly in cool or humid conditions.
CSR's full selection of setting-type, all-purpose and lightweight joint compounds is available in one collection for easy comparison, including products from CGC and CertainTeed.
Skim coat drywall finish: tips for better results
Before skim coating, thin the joint compound with a small amount of clean water until it can be rolled on without dragging. Water should be added gradually, as the consistency can change quickly. Work in sections that are small enough to smooth with a blade while the compound is still wet, and complete the ceiling before moving on to the walls.
When smoothing, try to pull the blade in one continuous stroke, since stopping partway can leave visible lines. Once the skim coat is dry, inspect the surface with a low-angle light and mark any imperfections with a pencil so they can be corrected before priming. Light sanding with a pole sander or hand sander will take care of most small marks. Finally, apply a quality drywall primer before painting. Primer evens out the difference in absorption between the joint compound and the paper face of the board, which helps prevent flashing in the finished paint.
Need help choosing the right finish level?
Our team can review the details of your project, including the paint, the lighting and the tools you already use, and recommend the right compounds and equipment for the job.
You can also call our Concord store at 905-761-1002, our Bowmanville store at 905-623-1066 or our Barrie store at 905-761-1003, or email info@csrtools.com. Our stores are open Monday to Friday from 6am to 4pm.
Frequently asked questions
Quick answers to the questions we hear most about drywall finish levels.
What is the difference between a Level 4 and Level 5 drywall finish?
A Level 4 finish includes tape and three coats of compound on the joints, with the joints and fasteners sanded smooth. A Level 5 finish includes all of the same steps, plus a thin skim coat over the entire surface. The skim coat gives the wall a uniform texture, which helps prevent joints from showing through glossy paint or under critical lighting.
Is a Level 5 drywall finish worth the extra cost?
Level 5 is worth considering when you plan to use semi-gloss, gloss or enamel paint, or when a wall receives strong light at a low angle from windows, skylights or recessed lighting. In rooms with flat paint and typical lighting, a Level 4 finish usually performs well. Many projects use Level 5 only on the walls where it is needed most.
How many coats of drywall compound are needed for a Level 4 finish?
Under GA-214, flat joints receive a tape coat followed by two additional coats of compound, inside corners receive one additional coat, and fasteners and accessories receive three coats. Butt joints or uneven areas may need an extra pass to achieve a smooth surface.
What compound should I use for a skim coat?
A lightweight or all-purpose ready-mixed compound, thinned slightly with clean water, works well for most skim coats. In occupied homes, a dust-control compound can help reduce airborne dust during sanding. You can compare options in our compounds collection.
What level of drywall finish is needed behind tile?
GA-214 typically calls for a Level 2 finish where gypsum panels are used as a base for tile, since the tile and setting material will cover the surface. Always follow the tile and board manufacturers' installation requirements for wet areas.
What level of finish do I need for a garage?
Garages are typically finished to Level 2, as appearance is less of a concern. However, walls and ceilings between an attached garage and the living space may have fire-separation requirements, so it is important to check your local building code before deciding on the finish.