Windsor Mounting Block Installation

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Tools and Supplies You'll Need

You can install Wellington panels easily using tools found in almost everyone's toolbox. To complete your project you will at least need these basic tools:

  1. Exterior Grade Screws — use screws that are long enough to go through the FauxPanel and firmly attach to the wall behind the FauxPanel. We recommend a narrow head screw (such as a #1 Robertson head trim head screw) to make touch-up easier and less noticeable.
  2. Construction Adhesive/Glue — we recommend either PL® Premium Construction Adhesive, PL® Premium Advanced 3X Construction Adhesive (which has 3X faster bonding), or Great Stuff Pro.
  3. A saw for cutting panels – a circular saw, jig saw, band saw, table saw, or hand saw, it is your preference. Any woodcutting blade used with these saws will work great and cut smooth and easy.
  4. Tape Measure
  5. Level
  6. Caulking gun for applying the Adhesive/Glue and Caulk.
  7. FauxPanels® color coordinated textured caulk.
  8. 2" x 4" lumber as needed
  9. Exterior grade plywood as needed


Measure the object to be mounted using your mounting block.

1.) To start, we will need a few important measurements. First, locate the center of the object to be mounted on the mounting block (outlet box, hose bib, electrical box, etc.). Next, locate on the previous course of panels where the bottom of the panel to be cut out will fall when installed and mark it. Then determine where the edge of the panel to be cut out will fall on the panel to the left and mark it. Lastly, measure from the center of the object to the mark locating the bottom of the panel and measure to the mark locating where the left edge of the panel will fall.

Transfer your measurements to your panel for proper cutting.

2.) Using the measurements taken from your wall, mark the correct position on the back of the panel to be cut. This mark should line up to where the center of the object to be mounted will fall. Using this mark as the center, draw a rectangle either 7 ½" x 10 ½" (if using the large mounting block) or 5" x 6” (if using the small block). Mounting blocks can be installed horizontally or vertically as needed.

Follow your markings to cut out your panel to house your object and mounting block.

3.) The rectangle you drew on the panel back will be used as a cutting guide. Cutout the specified area and then install this panel like you would a normal panel.

The back of your mounting block has preformed areas designed for certain items.

4.) On the back side of the mounting block you will see a preformed area molded into the block. On the large mounting block it is a round area for round outlet boxes. The small mounting block has preformed areas for plumbing rough-in, single and double outlet boxes, and round fixture cutouts.

Choose the right spot on your mounting block to suit your needs and cut out from the back.

5.) Determine which cutout and what size is appropriate for your specific installation. Drill a hole on the side of the cutout area to use as a starter hole and then cut the pattern on the block (we recommend using a sabre saw for this).

Note: Always cut from the back of the mounting block to avoid scuffing or damaging the mounting block’s surface and to minimize touch ups needed. If necessary, using a wood rasp can help you fine tune the cutout.

Glue and caulk your mounting block as needed and attach to your wall.

6.) Apply the caulk and/or adhesive to the back of the mounting block to seal between the mounting block and the panel. Place your mounting block into the opening of the panel and attach with 3" screws. Screws should be placed where they will be concealed by the cover place of the fixture, if possible.

Attach electrical boxes, cover plates and anything else needed to finish your project.

7.) Lastly, attach electrical boxes to the face of the cover plate if applicable. Install the fixture and its cover plate then caulk around the fixture as necessary for a good seal.

Important Info...

Be sure to follow and obey all safety rules and recommendations set forth by tool manufacturers. Always follow any, and all, local, state, and federal building codes.

Always comply with any specified clearances set forth by the manufactures of stoves, fireplaces, furnaces, and any other heat sources, as well.