
Exposed beam ceilings are a stylish feature in homes, but they can present a challenge when it comes to running electrical wiring and installing lights or fans. The wiring needs to be carefully routed through or around the beams, and homeowners often want to conceal the wires for aesthetic reasons. There are a few different approaches to this problem, including using metal or plastic conduits, such as EMT or Wiremold, to house the wiring, or painting the wires to match the colour of the ceiling.
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What You'll Learn

Drilling a hole and hand routering a box into the beam
Drilling a hole and hand-routing a box into the beam is a challenging but rewarding way to run electrical wiring with exposed beams. Here is a step-by-step guide to help you through the process:
Planning the Wiring Route
Before you start drilling, it's crucial to plan the wiring route carefully. Identify where the wire will be coming from and where it needs to go, taking into account any obstacles like structural beams. Determine the number of wire holes you'll need, ensuring you don't cram too many wires into a tight space, as this can cause overheating and even house fires.
Drilling the Hole
When drilling the hole, make sure to wear safety glasses to protect your eyes from dust and debris. Always double-check both sides of the beam to ensure you're not drilling into any existing wiring or structural components. The height of the hole is important; if it's too low, it will be uncomfortable to work with, and the wire may be too close to electrical devices. If it's too high, you'll need to use more staples to secure the wire. Drill your holes level to ensure a professional look and easier wire pulling.
Hand-Routing the Box
Hand-routing a box into the beam is a challenging task, especially when done upside down with sawdust flying. Using a router, carefully cut out a box-shaped section inside the beam, ensuring it is deep and wide enough to accommodate the wiring comfortably.
Hiding the Wire
To hide the wire, use the router to cut a channel on the top of the beam, creating a path for the wire to travel from the light location to a wall. This step can be tricky, as it may involve crawling along the beam while routing. Once the channels are cut, thread the wire through before completing the loft floor, as this may be your only opportunity to do so.
Final Steps
After the wire is securely in place, staple it down, being careful not to nail through the wire with any flooring nails. This process will likely require significant time and effort for each ceiling light, but the results will be a clean and functional electrical setup with exposed beams.
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Using a surface-mounted raceway or conduit to hide wiring
If you're looking to hide wiring in a room with exposed beams, one option is to use a surface-mounted raceway or conduit. This method can be a good alternative to fishing wires through walls, which can be labour-intensive and may not always be possible.
Surface-mounted raceways and conduits are available in metal or plastic. Metal options, such as EMT (thinwall) conduit, are harder to bend and require special tools. Plastic options, on the other hand, are easier to work with and some varieties have a peel-off backing that exposes adhesive for easy installation. Plastic raceways can also be painted to match the colour of the room.
When installing a surface-mounted raceway or conduit, it's important to plan ahead. Determine the power requirements of the tools or appliances that will be connected, and consult a licensed electrician if needed. The National Electrical Code (NEC) has specific requirements for extending circuits and considerations for electrical loads.
To install the conduit, start by sticking it in the first connector and holding it level to mark the placement of the conduit hangers. The NEC requires installing a hanger within three feet of each box and every ten feet thereafter. In areas where the conduit may be subjected to physical damage, such as a basement or garage, it's recommended to place the first hanger within two feet of the box and every six feet thereafter.
After marking the hanger placements, attach the minnies to a stud or use drywall anchors. If you've made any cuts to the conduit, remove any sharp burrs with pliers to prevent snagging on electrical wires. Then, stick the conduit in the connector and minnies, levelling and tightening as you go. Finally, add your second box or a straight piece to reach your destination.
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Painting the wiring to camouflage it
Painting wiring the same colour as the ceiling or beams can help to camouflage it. You can also use cord covers, which are available in a variety of lengths and widths, and can be painted to match the ceiling or beam colour.
If you want to use a surface-mounted raceway or conduit, you can paint these to match the wall colour. Raceways are available in metal or plastic. Metal is harder to bend and requires a special tool, whereas plastic is easy to work with and some types have a peel-off backing that exposes adhesive.
If you want to use a wire moulding, you can get these in plastic or metal. Again, metal is harder to bend and requires a special tool, whereas plastic is easy to work with. You can also get wire moulding in a variety of colours, including white, black, and brown, which can be painted to match your desired colour.
Another option is to use PVC crown moulding, which is a budget-friendly, water-resistant option for wire concealment. These lightweight pieces feature pre-cut channels specifically designed for cable management and are available in white and paintable finishes.
If you want to get creative, you can use preserved eucalyptus branches, pampas grass, or dried florals to disguise wire trails. You can also use decorative room dividers or floating shelves to create natural wire pathways.
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Using cord covers to hide wiring
Exposed beam ceilings can be a beautiful feature, but they can also present a challenge when it comes to running electrical wiring. One effective way to hide wiring is to use cord covers.
Cord covers are an excellent solution for concealing electrical wiring that runs along exposed beams. They are available in various lengths and widths to accommodate different sizes of beams and the number of wires that need to be covered. Cord covers can also be cut to make corners, ensuring a seamless and discreet finish.
When selecting a cord cover, opt for one that can be easily painted to match the colour of the beams or surrounding walls. This will help the cover to blend in and become almost invisible to the eye. Some cord covers even come with a peel-off backing that exposes adhesive, allowing for easy attachment to the beam.
To install a cord cover, start by measuring the length of the beam or wall where the cover will be placed. Cut the cord cover to match this measurement. Use a level to mark anchor points on the wall, ensuring they are straight. Then, use anchors and screws to securely mount the base of the cord cover to the beam or wall. Lay the electrical wires over the base and snap the cover shut, concealing the wires from view.
For a truly seamless look, consider painting the cord cover to match the colour of the beam or wall. This extra step will ensure that the cover blends in perfectly with its surroundings, making it even less noticeable.
Using cord covers is a straightforward and effective way to hide electrical wiring when dealing with exposed beams. With careful selection and installation, they can help maintain the aesthetic appeal of the beams while providing the necessary functionality for lighting or other electrical needs.
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Routing a groove in the wood between the beams and painting it over
Routing a groove in the wood between exposed beams to run electrical wiring is a challenging task. It requires careful planning and the right tools to achieve a professional and safe result. Here is a step-by-step guide to help you through the process:
First, determine the location of the groove and the depth required. Mark a straight line on the wood where you want the groove to be, using a straightedge as a guide. Double-check your measurements to ensure the groove will not be too long or short. Choose a routing bit that matches the shape of the groove you want to cut. A plunge router is the best tool to use for this, but you can also use a rotary tool for shorter channels or a table saw for long grooves with flat bottoms.
Next, set the depth of the router to match the desired depth of the groove. Place the router on a piece of scrap wood so that the bit hangs over the edge, and adjust the depth using the dial on the side. Lock the depth in place once set. If you are using a router, attach the chosen bit to the end by unscrewing the guard, removing the old bit, and inserting the new one. Re-tighten the bolt and secure the guard.
Now you are ready to begin cutting the groove. If you are using a router, place a flat piece of scrap wood on top of the wood you are cutting, so it touches the router guard. Ensure the scrap wood is secure and parallel to the line you drew. Pull the router along the line to cut the groove, wearing safety glasses to protect your eyes.
Once the groove is cut, you can thread the electrical wiring through it. This step must be done before any final flooring is put in place, as seen in one challenging cabin renovation. After the wiring is installed, you can paint over the groove to conceal it.
Running electrical wiring through exposed beams is a complex task, and there are alternative methods to consider. Some people use metal or plastic raceways/wiremolds to conceal wiring, although these can be expensive and may not be legal in some jurisdictions. Another option is to drill holes through the beams and hand-router boxes to hide the wiring, although this is difficult, especially when working upside down on a ceiling.
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Frequently asked questions
One way to hide electrical wiring in exposed beams is to use a metal or plastic conduit, such as Wiremold or EMT (thinwall). These can be painted to match the colour of the ceiling and walls, making them less noticeable. Another method is to create a groove in the wood between the beams, tack down the wire, and paint it to match the colour of the beam. Additionally, cord covers or ceiling/wall wood borders can be used to conceal wires, providing a discreet and effective solution.
When choosing a conduit for exposed beam wiring, it is important to consider the material, ease of use, and cost. Metal conduits are more difficult to bend and require special tools, while plastic conduits are easier to work with and may have a peel-off backing with adhesive. However, it is worth noting that plastic may not be legal in some jurisdictions. In terms of cost, conduit materials like Wiremold are typically more expensive, but labour costs may be lower due to their ease of use.
Yes, there are alternatives to using a conduit. One option is to drill a hole through the beam and hand router a box that fits inside perfectly. Another method is to cut a channel on the top of the beam to run the wire from the light location to a wall. This approach requires careful planning and precision as it involves crawling along the beam with a router. Additionally, it is important to consult with a professional electrician or refer to relevant electrical codes to ensure that any chosen method complies with safety standards.
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