Installation Instructions

PO Box 16
State Hwy 173
Mather, WI 54641
800-657-4666
FAX [phone]
Using Log Siding J-Blocks
Using log siding J-blocks is very similar to using J-blocks associated with vinyl siding.
Although the following examples may not suit every need, they are intended to show some
possible methods of J-Block installation. Please check local codes before proceeding with
construction to ensure all local codes are satisfied.
Start Right. Meadow Valley manufactures two different sizes of J-block, both sizes are available
in cedar or spruce/pine. Our 1 ½” thick J-blocks work well for our 2 x 6 or 2 x 8 log siding,
while our 2 ¼” thick J-block works well with our 3x8, 2 ½ x 10 and 3x10 log siding.
In addition, we have outlet J-blocks intended for rectangular outlet boxes and we offer fixture J-
blocks intended for light fixtures and dryer vents. The fixture J-Blocks have a 4 inch diameter
round hole cut out to accept a standard round electrical box.
SIZE
Fits These Log Siding Profiles
Used for:
Available in:
1 ½” x 4 ¾” x 7”
2x6, 2 x 8 STD, MVP
Electrical Outlets
Spruce or Cedar
1 ½” x 7” x 7”
2x6, 2 x 8 STD, MVP
Light Fixtures
Spruce or Cedar
2 ¼” x 4 ¾” x 7”
3x8, 2 ½ x 10, 3x10
Electrical Outlets
Pine or Cedar
2 ¼” x 7” x 7”
3x8, 2 ½ x 10, 3x10
Light Fixtures
Pine or Cedar
FOR REMODELING:
Whether you are remodeling a single room or replacing old siding, chances are your electrical
boxes are fastened to studs buried in your existing wall. One method is to pull the old boxes off
and install new boxes inside your J-Block. An easier method is to buy extension boxes, available
at most lumberyards and home centers, but be sure to purchase the correct size for your job.
Before beginning any electrical work, be sure the power is shut off at the breaker box!
1 2