Accessories
Rich cedar-grain texture J-blocks are used to easily and attractively help mount light fixtures, water faucets and more.
Available Profiles
J-Blocks in Cedar Texture
J-Blocks in Brushed Smooth
Mini-Splits in Cedar Texture
Mini-Splits in Brushed Smooth
Outside Corners in Cedar Texture
Looking for color? Select LP® SmartSide® products are available in 16 ExpertFinish® prefinished colors. Explore color to get inspired, or download the complete list.
Cedar Texture J-Blocks (Pictured in ExpertFinish® color Abyss Black)
Looking for color? Select LP® SmartSide® products are available in 16 ExpertFinish® prefinished colors. Explore color to get inspired, or download the complete list.
Advanced Durability
Engineered wood technology offers superior protection against the elements.
Finished Exterior
LP® SmartSide® accessories offer a clean, attractive look that contributes to exterior aesthetics.
Primed or Prefinished
All accessories come pre-primed and are available in a variety of ExpertFinish® colors.
5/10 Year Limited Warranty
Backed by a 5/10 Year Limited Warranty.
Professional Resources
Find the details you’ll need to complete your next project.
Install & Tech Docs
Product Specifications
Warranty Information
Where to Buy
Homeowner Planning Resources
Get inspired to create a look that sets your project apart.
Home Visualizer
Product Catalog
Choosing a Siding Color
Find a Siding Contractor
Why LP SmartSide?
Proven to be more durable than other siding materials..
Resiliency
Competition
Sustainability
Are You Demanding Enough From Your Siding?
Don’t make compromises with your siding products—side with durability from LP® SmartSide® Trim & Siding. Check out how we put it to the test on the jobsite so you can build with confidence.
Installation Made Easy
Watch our experts demonstrate the advantages of installing LP® SmartSide® products.
Install Tip: J-Blocks vs. Mini Splits
Tips for Custom Outside Corners
Install Tip: J-Block Benefits
How to Install Mini-Splits
Inspiration Gallery
Browse through our collection of images to find ideas for your project.
Ready to take the next step with your siding project?
The Benefits of Engineered Wood
LP SmartSide Trim & Siding products are treated with our proprietary SmartGuard® process. With four components of protection, the process adds strength and helps our products withstand impacts, freeze/thaw cycles, high humidity, fungal decay and termites.
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Why choose LP® SmartSide® ExpertFinish® Trim & Siding
