10 Common Mistakes New Drywall Professionals Make And How To Avoid Them

Drywall installation is vital for construction projects. But it is a skill that takes time and practice as new drywall professionals often make mistakes that can be costly and time-consuming.

Not Prepping The Room Properly

The first error brand-new drywall professionals make is improper room preparation. It is important to operate on a surface that is both clean and dry. This entails removing any plasterboard, wallpaper or paint that is currently present on the walls and ceiling. The adherence of the plasterboard mud might be compromised by any dirt or dust left on the surface, leading to a subpar finish.

Spend some time before starting to properly set up the area to prevent making this error. Protect any floors and furnishings from dust and dirt by covering them with plastic sheeting. After drywall work, hoover up any debris from the walls and ceiling. Additionally, check the ventilation in the space to ensure that any moisture may escape.

Not Measuring Correctly

The second error rookie plasterboard contractors make is improper measurement. Drywall sheets come in a variety of sizes, so it’s important to precisely measure and cut them to fit the wall or ceiling. A bad measurement might lead to difficult-to-close gaps and uneven joints.

Before cutting the plasterboard sheets, properly measure the walls and ceiling to prevent making this error. Make measurements on the sheets with a tape measure, a straightedge, and a pencil. Before making any cuts, confirm the measurements once more to make sure they are accurate.

Using The Wrong Tools

The use of incorrect tools is the third error that drywall installers commit. The improper equipment might lead to subpar work and damage to the plasterboard sheets. For instance, using a utility knife rather than a plasterboard saw might lead to uneven and jagged edges.

Invest in the appropriate instruments for the work to prevent making this error. A plasterboard saw utility knife, tape knife, screw gun, and sandpaper are a few necessary drywall installation equipment.

Not Applying Enough Mud

Applying insufficient mud to the drywall work is the fourth error. Applying too little mud might lead to a joint that is weak and prone to fracture. Additionally, it could make it difficult to get a smooth finish.

Apply enough mud to thoroughly cover the joint to prevent this error. Spread the mud evenly over the joint using a taping knife, being sure to fill up any gaps or holes. Apply enough mud to make a smooth surface free of lumps and bumps.

Over-sanding the Joint

drywall contractor

Over-sanding the junction is the sixth error that novice plasterboard contractors commit. Sanding is a crucial step in the drywall installation, but doing so excessively might harm the joint and provide a rough surface.

Use fine-grit sandpaper to softly sand the drywall sheet joint to prevent this error. To get a smooth finish, start with a coarse grit and work up to a fine one. Next, sand evenly while protecting the surrounding area by using a sanding block.

Not Using Enough Screws

The sixth error that rookie drywall professionals commit is not utilizing enough screws. A weak joint prone to splitting and drooping might result from not employing enough screws. Additionally, it could make it difficult to get a smooth finish.

Use enough screws to hold the plasterboard sheet firmly in place to avoid this error. Drive the screws into the studs or ceiling joists regularly using a screw gun. Make that the screws are flush with the drywall sheet surface.

Improper Joint Taping

New plasterboard specialists frequently make mistakes during joint taping, which is essential for the drywall finishing procedure. An uneven surface, fissures, and lumps can result from improper joint tape and be challenging to correct.

Apply the joint compound thinly and uniformly to prevent making this error. Smooth down the joint compound using a putty knife, ensuring no ridges or lumps. Before sanding and applying a second layer, let the joint compound dry.

Poor Joint Finishing

A standard error made by new drywall installers is poor joint finishing. Making mistakes with joint finishing is easy since it calls for time and meticulousness.

Apply the joint compound evenly and thinly to prevent making this error. Make sure the joint compound has no ridges or lumps by smoothing it down with a putty knife. Prior to sanding and adding a second layer of joint compound, let the first coat dry.


Over-screwing is another error that novice drywall installers frequently commit. Overtightening can harm the plasterboard and make finishing more challenging. Use the appropriate number of screws and set them in the proper location when fastening the plasterboard to the studs.

To avoid overscrewing, use the recommended number of screws per square foot of plasterboard. Four screws are typically required for every 16 inches of the stud. Make sure the screws are positioned in the middle of the studs, away from the drywall’s border.

Inadequate Protection

drywall installation jobs

Another typical error made by rookie drywall professionals is inadequate protection. It’s critical to shield floors, furniture, and other surfaces from dust and particles when installing.

To prevent making this error, cover the furniture and flooring with drop cloths. Doorways and other openings should be covered with plastic sheeting. To protect oneself from dust and other particles, it is a good idea to dress in protective gear such as gloves and coveralls.


In conclusion, training is essential for plasterboard specialists and installers to succeed in the field. Training-related skills and knowledge provide better job quality, greater productivity, and ultimately higher customer happiness. The latest methods and technology are kept current with the aid of ongoing training, which keeps experts competitive in the market. PTTI can teach you more about drywall work.

Read More

Drywall and Sheet rock services | Drywall Framing and Finishing program | Drywall Installation Services | Trade programs in Philadelphia | Trade School Infrastructure | Trade schools in Philadelphia | Vocational School in Philadelphia

Leave a Reply

Your email address will not be published. Required fields are marked *