
Exterior plastic shutters can be a great way to enhance the curb appeal of your home. Trimming them can help achieve a more polished look. Whether you're updating old shutters or starting from scratch, it's important to understand the process of trimming exterior plastic shutters to ensure a precise and aesthetically pleasing result. In this discussion, we will delve into the steps involved in trimming exterior plastic shutters, offering guidance on everything from measuring and marking to the tools and techniques required for a successful outcome.
Characteristics and Values Table for Trimming Exterior Plastic Shutters
| Characteristics | Values |
|---|---|
| Installation | Exterior shutters can be installed by drilling holes into the wall and using fasteners, such as metal screws or plastic shutter fasteners. |
| Preparation | Before installation, ensure the wall surface is clean and free of debris. Mark the location of the outside corners and mounting holes. |
| Gaps | Leave a 1/4-inch gap between vinyl or composite exterior shutters and the window trim to allow for expansion and contraction. |
| Fasteners | Use shutter locks, shutter plugs, or shutter spikes as fasteners. Ensure they are suitable for the surface you are drilling into (wood, aluminum, vinyl, stucco, hardboard, brick, or masonry). |
| Pilot Holes | Drill 1/4-inch pilot holes into the shutter and wall. Use a hammer drill with a carbide masonry bit for masonry surfaces. |
| Overtightening | Avoid overtightening fasteners, as this can cause warping or dimples on vinyl shutters. |
| Painting | Clean the shutters before painting, especially if mildew or mold is present. Use a mixture of bleach and water, then scrub with detergent and rinse. Allow the shutters to dry before painting. |
| Primer | Use a primer designed for plastic surfaces or exterior use. Krylon Fusion paint is made to adhere to plastic, so no primer is needed. |
| Paint Type | Use high-quality, exterior, acrylic latex paint or paint made for plastic. |
| Paint Application | Spray painting is an option, but use short, sweeping bursts to avoid thick layers. Brush painting is also effective. |
| Moisture Control | Add 1" sections of 1/2" PVC pipe to reduce moisture and animal nesting. |
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What You'll Learn

Tools and materials needed
Trimming exterior plastic shutters is a straightforward project that can be completed in an afternoon. Before you begin, make sure you have all the necessary tools and materials to ensure a smooth and efficient process. Here is a list of the tools and materials you will need:
- Drill: A drill is essential for making pilot holes in the shutters and the wall during the installation process. Ensure you have the correct drill bits for the job, such as a multi-purpose 11/64-inch bit for pre-drilling holes and a 5/16-inch drill bit for enlarging the holes. You may also need a carbide masonry bit if drilling into masonry surfaces.
- Screws: Metal screws are commonly used for installing exterior shutters. Choose screws that are long enough to securely attach the shutters to the wall. Consider the type of wall surface and use screws suitable for the material, such as construction screws for studs or exterior screws.
- Shutter Locks and Fasteners: Shutter locks and fasteners are crucial for securing the shutters to the wall. Look for shutter locks with hex-driven flat heads and ensure you have the appropriate installation tool, such as an Allen wrench.
- Measuring Tape: Use measuring tape to determine the correct placement of the shutters and to mark the depth of the drill holes. This helps ensure that the fasteners will secure safely into mortar joints or the desired surface.
- Ladder: Working at heights requires a stable and sturdy ladder. Consider your safety by using a harness and having a spotter assist you by holding the ladder steady.
- Protective Gear: When drilling or cutting, always wear eye protection to shield your eyes from debris and dust. A dust mask can also be worn to avoid inhaling dust particles.
- Snips or Hacksaw: If you need to remove old shutters, a pair of snips or a hacksaw blade can be useful for cutting through fasteners or spikes that secure the shutters to the wall.
- Wrench: If your shutters have plastic buttons instead of screws, a wrench can help pull out the plastic piece inside so you can replace them with paintable Shutter Lok Fasteners.
- Cleaning Supplies: Before painting or priming your shutters, ensure you have plastic-safe household cleaners to remove any dirt, mildew, or grime from the surface. You will also need a hose and clean microfiber cloths to rinse and wipe down the shutters.
- Primer and Paint: Using primer is essential for achieving a smooth and durable finish on plastic shutters. Choose a primer specifically designed for plastic surfaces or exterior use. After priming, you can apply a fresh coat of paint to refresh the look of your shutters.
With these tools and materials gathered, you will be well-equipped to trim and install your exterior plastic shutters effectively and safely.
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Preparing the shutters
Firstly, it is important to determine the type of surface you will be working with. Exterior shutters can be attached to a variety of materials, including wood, aluminum, vinyl, stucco, hardboard, brick, or masonry. Each surface may have specific requirements or considerations for installation. For instance, if attaching shutters to stone or brick exteriors, you may need to adjust the placement of the mounting holes to ensure that the fasteners secure into mortar joints.
Next, you should inspect the shutters themselves. If they have been previously installed, it is important to clean them thoroughly. Start by checking for any mildew, mold, or grime. If present, create a mixture of one part bleach to four parts water and apply it using a spray bottle or pump-up garden sprayer. Be sure to protect your skin, eyes, and any nearby plants when working with bleach. After applying the bleach mixture, rinse the shutters thoroughly with a hose.
Once the shutters are free of mildew or mold, scrub them with detergent and water to remove any remaining dirt or chalking. Again, use a hose to rinse off the soap. If there is excess water on the shutters, use a clean microfiber cloth to wipe them down. Allow the shutters to dry completely before proceeding to the next step.
Now, you should determine how the shutters will be attached to the surface. Exterior shutters typically come with mounting hardware, which may include metal screws, plastic shutter fasteners, shutter locks, shutter plugs, or shutter spikes. Check the manufacturer's specifications for specific directions on the type of hardware and installation process recommended for your particular shutters.
Finally, with the shutters clean and dry, and the hardware identified, you are ready to begin the installation process. Mark the locations for the mounting holes on the shutters. Measure and mark the center of both side rails, positioning the holes 2 inches from the top and 2 inches from the bottom. For taller shutters, additional fasteners may be required midway along the length of the side rails. Pre-drill the holes using a drill with a multi-purpose bit. The specific size of the bit may vary depending on the type of fasteners you are using.
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Attaching the shutters
Attaching exterior plastic shutters is a simple DIY project that can be done by following a few steps. Here is a guide on how to attach them:
First, ensure that you have the necessary hardware for installation. Most new shutters include mounting hardware, which can be metal screws or plastic shutter fasteners, also known as shutter locks, shutter plugs, or shutter spikes. If your shutters did not come with hardware, you can purchase it separately.
Next, reposition the shutter on the exterior wall. Determine the placement of the mounting holes, marking their locations with a pencil. If attaching the shutters to a stone or brick exterior, adjust the placement of the mounting holes to ensure the fasteners will secure into mortar joints. For vinyl or composite shutters, leave a 1/4-inch gap between the shutter and the window trim to allow for expansion and contraction in different temperatures.
Now you are ready to drill the pilot holes. Using the holes in the shutter as a guide, drill into the wall to a depth of 3 1/4 inches. You can measure and wrap tape around the drill bit to guide your drilling depth. Drill the pilot holes into both the shutter and the wall.
Once the pilot holes are drilled, remove the shutter from the wall. Enlarge each hole in the shutter with a slightly larger drill bit if necessary. For example, if you used an 11/64-inch bit to drill the pilot holes, you can now use a 5/16-inch drill bit to enlarge the holes.
Finally, put the shutter back in place and insert the fasteners or screws through the pilot holes in the shutter into the wall. Gently tap the fasteners with a hammer to snug the shutter to the wall, being careful not to overtighten, as this can cause warping or dimples on vinyl shutters.
With these steps, you can securely attach your exterior plastic shutters, giving your home a refreshed and appealing look.
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Painting the shutters
Painting your exterior plastic shutters can be a great way to refresh the look of your home without the cost of a full remodelling project. Here is a step-by-step guide to painting your exterior plastic shutters for a long-lasting, professional finish.
Preparation
Before removing the shutters, identify how they are attached to the house. Vinyl shutters are typically secured with either metal mounting clips or plastic mounting nails. If you are unsure, carefully inspect the shutters and look for small, discreet fasteners. If there are multiple shutters of different sizes, use a marker or labels to indicate their positions.
Cleaning
If the shutters have been around for a while, you’ll need to clean them before painting. If mildew or mould is present, kill it using a mixture of one part bleach to four parts water in a pump-up garden sprayer or spray bottle, then rinse thoroughly with a hose. Be sure to protect your skin, eyes, and any plants when working with bleach. Next, scrub the shutters with detergent and water to remove any dirt or chalking. Rinse off the soap with a hose, and wipe up excess water with a clean microfiber cloth. Allow the shutters to dry completely before painting.
Priming
Using primer is an important step to ensure a smooth and durable finish. Not all primers are suitable for plastic surfaces. When selecting a primer, avoid metal-etching primers typically used for cars and appliances, as these can damage the plastic. Opt for a primer that is specifically designed for plastic surfaces or exterior use. Most home improvement stores will carry suitable options. Before applying the primer, ensure that your plastic shutters are thoroughly cleaned. While not required, priming the shutters with a latex primer before painting with acrylic latex paint can increase adhesion and allow better coverage by the top coat. Krylon Fusion paint is made to adhere to plastic, so plastic or vinyl surfaces shouldn’t be primed before painting.
Painting
When it comes to painting exterior plastic shutters, use a high-quality, exterior, acrylic latex paint or a paint made specifically for plastic. If you prefer spray painting, look for brands that offer a paint-and-primer option specifically designed to bond with clean plastic. When spray painting, work in short, sweeping bursts to avoid applying thick layers. Most paints can be recoated within 20 minutes to smooth out any uneven spots. The best way to paint exterior plastic shutters is to remove them from the house and set up a painting workstation in a well-ventilated garage, shed, or outdoor location.
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Troubleshooting
Shutter has shifted
If your exterior shutter has shifted, the first step is to identify the cause. If it is a decorative shutter, the wall mounting may be insecure. Remove the shutter from the wall and check the fixings. If it is a functional shutter, the weight of the shutter may have caused the hinge mounting to shift.
Hinge mounting issues
If the hinge mounting is the issue, you will need to remove the hinge from the shutter. Check the holes and identify if they have become enlarged. If so, you can either use a thicker screw or repair the holes with a 2-pack filler. Once dry, trim off any excess filler and, if necessary, apply some touch-up paint.
Wall damage
If the wall has become damaged or crumbled, you will need to repair it. Remove the fixings and fill the hole with a chemical cement filler, which can be squeezed through a nozzle.
Rawlplugs
Check the Rawlplugs in your brickwork or masonry. They may be too small, damaged, or loose. Try screwing one of the screws back in to see if it holds securely. If the Rawlplug is worn, try using a larger screw, just one size up.
Shutter spikes
If your shutters are held in place with shutter spikes, and they have become loose, you will need to cut them off with a thin hacksaw blade or a bread knife. Once removed, drill out the core with a smaller drill bit. When inserting the new spike, use a small sliver of wood to take up any slack in the hole.
Overtightening
Overtightening fasteners can cause warping or dimples on vinyl shutters. Be sure to follow the manufacturer's instructions and take care not to overtighten.
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