The products to do everything. The power to do even more.
Be BoundlessTM
Defy limits and transform spaces into unique design stories—with siding, trim & mouldings and decking products that live up to your imagination.


Contemporary trends, lasting impact.

Discover Royal

Calling all weekend warriors.
Introducing the new BuildRoyalDIY Site. For the do-it-yourselfers, the inspired, the driven. It's time to get your hands dirty and build something unique.

Go to DIY Site

  • 0
  • 1
  • 2
1 of 3
Filters Updated

Trim & Mouldings

Trim is not an afterthought, it’s an essential. And we have ways to inspire you.


Choosing siding should be simple. All you need is some direction and style. Start here.


A commitment to great wood looks, innovative tech and memorable BBQs.

Home is where we belong.

Exterior design doesn’t happen by itself. That’s why Westlake Royal Building Products™ has high-profile, low-maintenance siding, trim and decking for every kind of home—and the tools and tips you need to make sense of it all. It’s not bragging when it’s true.

The Royal Color Trend of the Year:

Reveal what it means, see how it complements and feel its beauty and power.

Feast Your Eyes

Explore Design Influencers

“More than just an exteriors manufacturer.”

“We turned to the Royal design team for help. It was really nice to see all the colors and different options on the computer screen before we put it on the house.”

CELECT: Clapboard and Board & Batten

Hear from Other Homeowners