When it comes to hanging objects on walls, it is important to consider the material of the wall to ensure that the appropriate fasteners are used. Plaster walls have been a popular choice in many homes due to their durability and smooth finish. However, when it comes to installing shelves, artwork, or other heavy items, homeowners often wonder if wall screws can be used in plaster walls. In this article, we aim to shed light on this question and provide guidance on the best way to secure items to plaster walls.
Understanding Plaster Walls
Before discussing the use of wall screws in plaster walls, it is important to understand the structure of plaster walls. Traditional plaster walls consist of wooden lath strips nailed to the wall studs. The lath strips are then covered with multiple layers of plaster, creating a smooth finish. Due to the nature of plaster walls, they can be more delicate compared to drywall or other modern wall materials.
Using Wall Screws in Plaster Walls
While using wall screws directly in plaster walls is possible, it is not always recommended, especially for heavier objects. The reason for this is that the plaster can crumble or crack under the weight, leading to potential damage. However, for lighter objects and in certain situations, wall screws can be used effectively.
Preparing the Wall
Before attempting to use wall screws in plaster walls, it is important to prepare the wall to increase its strength and stability. This can be done by identifying the location of the wooden studs behind the plaster. Using a stud finder, locate the studs and mark their position on the wall. By screwing directly into the wooden studs instead of just the plaster, you can ensure a more secure attachment.
Using Wall Anchors
To provide additional support for heavier objects or when studs are not conveniently located, it is recommended to use wall anchors in combination with wall screws. Wall anchors distribute the weight of the object over a larger area, reducing the risk of damage to the plaster.
There are several types of wall anchors available, including plastic anchors, toggle bolts, and molly bolts. Each type has its own weight capacity, so it is important to choose the appropriate anchor based on the weight of the object being hung.
Using Plastic Anchors
Plastic anchors are commonly used in plaster walls for lighter objects. They are easy to install and suitable for most common household items. To use plastic anchors, simply use a drill bit that matches the size of the anchor, drill a hole into the plaster, then gently tap the anchor into the hole until it is flush with the wall. Finally, insert the screw into the anchor, tightening it until secure.
Using Toggle Bolts and Molly Bolts
Toggle bolts and molly bolts are recommended for heavier items that require more support. Toggle bolts consist of a spring-loaded wing mechanism that expands behind the plaster, providing a secure hold. Molly bolts, on the other hand, feature a conical sleeve that expands against the backside of the wall when the screw is tightened.
To install toggle bolts or molly bolts, drill a hole slightly larger than the size of the bolt, insert the bolt into the hole, and then tighten the screw until secure. Once tightened, the wings or sleeve of the anchor will expand, distributing the weight across a larger area.
While it is possible to use wall screws directly in plaster walls for lighter objects, it is often recommended to use wall anchors for increased stability. By using wall anchors, the weight of the object is distributed over a larger area, reducing the risk of damage to the plaster. Plastic anchors are suitable for lighter items, while toggle bolts and molly bolts provide additional support for heavier objects. By following these guidelines and properly preparing the wall, homeowners can ensure a secure attachment of objects to their plaster walls.