Superior Alder Trim Board

Complete your project with our Superior Alder Trim Boards, crafted from premium Superior Alder and designed to coordinate beautifully with our floating shelves, fireplace mantels, stair treads, risers, and stair returns.

Known for its smooth, consistent grain and clean appearance, Superior Alder offers a refined, contemporary look while still showcasing the natural beauty of real hardwood. Whether you're finishing a stair renovation, creating board and batten wall treatments, trimming windows and doors, building custom shelving details, or adding decorative accents throughout your home, these versatile trim boards provide a timeless, furniture-quality finish.

Construction & Quality

Each trim board is manufactured in Olathe, Kansas using premium Superior Alder and precision milling equipment to ensure consistent dimensions and dependable quality.

All boards are surfaced on all four sides (S4S) and fully sanded for a smooth, ready-to-finish appearance. The clean square edges make these boards ideal for both traditional and modern trim applications while highlighting the refined grain and natural elegance of Superior Alder.

Available Sizes

Choose from the following nominal trim sizes:

1x1 (Actual Size: 3/4" x 3/4")

1x2 (Actual Size: 3/4" x 1-1/2")

1x3 (Actual Size: 3/4" x 2-1/2")

1x4 (Actual Size: 3/4" x 3-1/2")

Trim boards are sold by the linear foot, allowing you to order only the amount needed for your project.

Available Unfinished or Finished

Order your Superior Alder Trim Boards unfinished to showcase the wood's smooth, natural beauty or to apply a finish that complements your project.

For a ready-to-install option, choose from our professionally applied stain colors and durable clear-coat finish. Prefinished boards receive the selected finish on the front face and both long edges. The back side and both ends remain unfinished and are intended to be concealed, trimmed, or cut to fit during installation.

Our finish options coordinate with the colors used on our floating shelves, fireplace mantels, stair treads, risers, and stair returns, making it easy to create a cohesive look throughout your home.

Common Applications

Our Superior Alder Trim Boards are commonly used for:

• Board and batten wall treatments
• Door and window trim
• Stair renovations and finishing details
• Shelf trim and decorative accents
• Fireplace surround details
• Wainscoting and wall paneling
• Cabinet and furniture projects
• Custom woodworking applications

Product Features

• Crafted from premium Superior Alder
• Smooth, consistent grain with minimal knots for a clean, refined appearance
• Surfaced on all four sides (S4S)
• Fully sanded and ready for finishing
• Available unfinished or prefinished
• Prefinished boards receive the selected finish on the front face and both long edges
• Sold by the linear foot
• Available in 1x1, 1x2, 1x3, and 1x4 nominal sizes
• Made in Olathe, Kansas from American-sourced hardwoods
• Coordinating finish options available to match J Thomas Home floating shelves, mantels, and stair components

Complete Your Project

Pair these Superior Alder Trim Boards with our coordinating floating shelves, fireplace mantels, stair treads, risers, and stair returns to create a cohesive design throughout your home. Matching finish options make it easy to tie multiple spaces together while highlighting the smooth grain and understated elegance that make Superior Alder a favorite for both traditional and contemporary interiors.