Mounting Plastic Shelving: A Step-By-Step Guide

how to mount plastic shelving assembly

Wall-mounted shelves are a great way to save space and display accessories, books, and decor. They are also customisable, affordable, and easy to install. When installing plastic wall-mounted shelves, it is important to ensure that the shelving is sturdy, level, and properly placed. Before beginning, it is critical to plan the project and consider factors such as the expected weight of the items to be stored, which will help determine the appropriate shelf and bracket system. Additionally, it is important to check for hidden pipes or cables behind the wall before fixing the brackets. Proper assembly of plastic shelves involves ensuring that the plastic pieces have arrows pointing up, the shelves have the lip down, and the plastic pieces are snapped into the pole groove.

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Planning and preparation

Select the Right Shelving System

Wall-mounted shelving systems come in various styles, including affordable options, customizable designs, and versatile types that can suit different needs and decor. Consider your specific requirements and choose a system that best fits your needs.

Calculate the Expected Weight

Determine the expected weight of the items you plan to store on the shelves. This calculation will help you choose the appropriate shelf and bracket system. Remember that the total weight capacity depends on both the shelves themselves and the wall they will be mounted to. Select a sturdy system that can safely support the expected weight.

Choose the Installation Location

Carefully select a wall area that is suitable for your shelving needs. Consider factors such as the available space, the height of the shelves, and any specific requirements, such as building a shelf over a door. Ensure that the chosen location can accommodate the weight of the shelves and the items you plan to place on them.

Gather the Necessary Tools and Materials

Ensure you have all the required tools and materials before starting the installation process. This may include items such as a drill, drill bits, screws, brackets, a stud finder, and any other specific components mentioned in the assembly instructions for your chosen shelving system.

Check for Hidden Hazards

Before drilling or screwing into the wall, it is crucial to check for any hidden pipes, cables, or other hazards behind the wall. This step helps prevent accidental damage to important utilities or safety hazards. Use a stud finder to locate wall studs and mark their positions lightly with a pencil. This will ensure that you screw into the studs for added support.

Prepare the Shelving Assembly

Follow the manufacturer's instructions to prepare the plastic shelving assembly. Ensure that all components are clean and free from oils or residues that may interfere with a secure assembly. Pay attention to any specific requirements, such as the orientation of the shelves and plastic pieces, to ensure a stable and secure installation.

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Choosing the right tools

The tools you will need to mount a plastic shelving assembly will depend on the type of shelving system you have and the type of wall you are mounting it on.

If you are mounting shelves on a wall with studs, you will need a stud finder to locate them. The studs should be spaced 16 or 24 inches apart, measured centre to centre. You will then need to mark the location of each stud with a pencil. If you are mounting shelves on a wall without studs, you can use a backer board attached to studs for extra support. Alternatively, you can use hollow-wall anchors or toggle bolts or molly bolts for added strength.

You will also need a drill. If you are drilling into a masonry wall, you will need a hammer drill with a masonry bit. If you are drilling into a stud wall, you will need a drill driver. You will also need drill bits. If you are drilling into masonry, use masonry bits, and if you are drilling into a variety of surfaces, use multi-purpose bits.

You will need screws to attach the brackets to the wall. If you are drilling into masonry, you will need screws that are at least 50mm long, and wall plugs. If you are drilling into studs, the screws should be long enough to go through the bracket and into the stud, but not so long that they go through the other side of the stud.

If you need to shorten the length of your shelves, you can use a bolt cutter or a hacksaw.

To assemble a plastic shelving unit, you will need to ensure that the plastic pieces have the arrow pointing up, the shelves have the lip facing down, and the plastic pieces are snapped into the pole groove.

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Marking the wall

First, you need to decide where you want your shelving assembly to be placed on the wall. Consider the weight of the assembly and the items you plan to place on it. For heavier loads, it is advisable to attach the assembly to wall studs, which provide additional support. Use a stud finder to locate the studs in your wall. Wall studs are typically spaced 16 to 24 inches apart, measured centre to centre. Mark the location of each stud lightly with a pencil.

If you are installing shelves on drywall without hitting studs, you can use hollow-wall anchors, toggle bolts, or molly bolts for added strength. Alternatively, consider using a backer board attached to studs for extra support.

Once you have located and marked the studs, decide on the height and placement of your shelving assembly. Hold the shelf against the wall and use a pencil to mark where the bottom of the shelf will be. Then, mark the locations of the brackets. The brackets should be fitted with the longer arm against the wall and the shorter one under the shelf.

To ensure your marks are level, use a spirit level. Hold the first bracket up to the mark and check that it is straight. Pencil the wall through the fixing holes, marking the wall where the screws will go. Repeat this process for the remaining brackets. If there are more than two brackets, fit them between the outer brackets at equal distances apart.

Now that you have marked the wall, you are ready to drill into the wall and screw the brackets into place.

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Drilling and screwing

Selecting the Right Tools

Before you begin, it's important to choose the appropriate tools for the job. Metal standards and brackets are a popular choice for wall-mounted shelves as they are inexpensive, strong, and adaptable to various shelving options. These can be attached to the wall using screws.

Locating the Wall Studs

To ensure a secure installation, it's crucial to locate the wall studs, which are the vertical framing members to which drywall is attached. Use a stud finder, either battery-operated or magnetic, to mark the position of each stud. The studs are typically spaced 16 to 24 inches apart, but additional studs may be present near doors, windows, and corners.

When drilling and screwing through plastic, there are several factors to consider:

  • Pre-drilling: To avoid deformation or breakage, it is recommended to pre-drill a hole with a diameter slightly smaller than the screw. For example, pre-drill a 2mm hole for a 3mm wood screw. This step is especially important when working with brittle plastics like PS and when drilling holes close to the edge.
  • Drill Bit and Speed: Use a metal drill bit and set your drill machine at high speed for the best results when drilling through plastic.
  • Safety: Drilling through certain plastics like PS and ABS can release toxic fumes. Wear a gas mask with ABEK filters to protect yourself from inhaling these fumes. The filter can be identified by four colour lines: brown, grey, yellow, and green.
  • Screw Types: When joining plastic to plastic or metal, self-tapping screws are a good choice. These screws form their threads when screwed into pre-drilled or moulded pilot holes. Thread cutting screws, also known as thread tapping screws, are suitable for stiffer plastics and create reduced internal stresses.
  • Screw Technique: When screwing into tough materials like HDPE and PP, simply screwing in the bolt firmly may be sufficient to hold the assembly together.

By following these steps and paying attention to safety precautions, you can effectively drill and screw plastic shelving assemblies, creating a secure and stable installation.

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Securing the assembly

To secure the assembly of a plastic shelving unit, it is important to follow the manufacturer's instructions and take the necessary precautions. Here are some detailed steps to ensure a secure assembly:

Firstly, it is crucial to prepare the shelving unit properly. Ensure that the plastic pieces have arrows pointing up, and the shelves have a "lip" facing down. This "lip" or flange is essential for stability, and placing it upside down will provide a more stable unit. The plastic pieces should be snapped into the pole groove securely. This is done by sliding the plastic piece with the arrow up and down the pole until it clicks into the desired groove. This creates a sturdy framework for the shelves to rest on.

Secondly, when installing the shelves, ensure they are securely attached to the plastic risers or brackets. One common issue with plastic shelving is the shelves sliding out of the riser grooves. To prevent this, wipe down the risers and plastic wedges with rubbing alcohol to remove any oils that may cause slippage. Additionally, avoid using the double rings on the risers, as the grooves are not as deep, causing the shelves to slide down.

Thirdly, when securing the assembly to a wall, it is essential to use the appropriate tools and fixings. For example, if attaching to a masonry wall, a hammer drill with masonry bits and wall plugs may be required. If attaching to drywall, use toggle bolts, molly bolts, or drywall anchors for added strength. Always ensure you are drilling and screwing into wall studs to provide a secure fixing.

Finally, when placing items on the shelves, consider the weight distribution. Distribute the weight evenly across the shelves to prevent overload on specific areas. Additionally, for heavier items, consider using bookends or installing the shelves below the top of the standards to prevent items from falling.

By following these detailed steps and taking the necessary precautions, you can ensure a secure plastic shelving assembly that is safe and stable.

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