What's Screws to Use on Drywall?
When it comes to hanging items on drywall, choosing the right screws is essential to ensure a secure and durable installation. Drywall, a common interior wall material, is composed of gypsum sandwiched between sheets of thick paper. Although it is an excellent material for creating smooth, finished surfaces, it can be tricky to work with when it comes to fastening. Using the correct screws can make all the difference in maintaining the integrity of your walls while ensuring that your objects remain securely in place.
Types of Screws
When selecting screws for drywall, there are two main types to consider drywall screws and other specialized types, such as anchoring screws or toggle bolts.
1. Drywall Screws
Drywall screws are specifically designed for attaching drywall sheets to wall studs. They are typically made of steel and are available in different lengths and thread types. The most common types of drywall screws are
- Coarse-thread screws These screws are often used for attaching drywall to wooden studs. The coarse threading allows for better grip in the softer wood, making them easy to install and less likely to snap under pressure. - Fine-thread screws These screws are normally used for fastening drywall to metal studs. The fine threading enables better penetration into the metal, providing a strong hold.
Drywall screws usually have a black phosphate finish, which helps to resist rust and corrosion. They also feature a sharp point that allows for easy penetration into the drywall and studs without pre-drilling.
If you're looking to hang heavier objects, such as shelves or pictures, from drywall, you may need to use anchoring screws or wall anchors in addition to drywall screws. These provide extra support and stability. Common types of anchors include
- Plastic anchors These simple anchors help distribute the load over a larger area of drywall. Insert the anchor into a pre-drilled hole, and as you screw in the screw, the wings of the anchor expand to grip the drywall securely.
- Toggle bolts These are a great choice for very heavy items. Toggle bolts have wings that open inside the wall after passing through the drywall, providing significant support. They're ideal for hanging items like large mirrors or shelving units.
what screws to use on drywall
- Molley bolts Similar to toggle bolts, molley bolts expand after installation to provide a strong hold in the drywall. They are particularly useful for heavy loads but are also easier to install than toggle bolts.
Choosing the Right Size
The size of the screws you choose will depend on the thickness of the drywall and the weight of the object you intend to hang. Standard 1/2-inch drywall typically requires 1 1/4-inch drywall screws for attaching to wooden studs. If using metal studs or when additional support is needed, consider 1 1/2-inch screws.
For heavier applications, always opt for longer screws or consider using multiple screws spaced appropriately apart to distribute the weight more evenly. Proper spacing (about 12 inches apart) can help maintain a strong and stable installation.
Installation Tips
When installing screws into drywall, a few important techniques can help ensure a successful outcome
- Pre-drill holes for anchors If you're using anchors, make sure to pre-drill the right-size hole to accommodate the anchor without splitting the drywall.
- Do not overdrive screws Overdriving can lead to damage, such as crumbling around the screw head or the screw either popping out or breaking. The screw should sit flush with the surface of the drywall.
- Use a screw gun A screw gun with adjustable torque settings can ensure that you achieve the correct depth without damaging the drywall.
Conclusion
Choosing the right screws for hanging items on drywall is vital for achieving secure installations. Understanding the difference between drywall screws and anchoring screws, selecting the appropriate size, and applying the correct techniques during installation will help ensure that your items remain securely in place. Whether hanging a picture frame or mounting a heavy shelf, taking the time to use the right materials will pay off in durability and safety.
