Metal Roofing Accessories

Find fasteners, anchors, bolts, hardware and more. We are a leading provider of quality fastening products for metal roofing and siding


Flashing and trim available in steel with coordinating finishes and colors for your residential, commercial, industrial or agricultural metal roofing project.


Use sealant tape at the panel laps for metal roofs to increase weather tightness. Order yours today.


Self drilling metal roofing fasteners, rivets, and clips available. All types. Metal to Wood and Metal to Metal. Painted and Galvanized.


High Quality, Natural Illuminating FRP Panels that match our most popular metal roofing profiles. Immediate Availability - 8 OZ White.


Foam closures for metal roofing and metal decking. 7/8" Corrugated, PBR Panel, Western Rib (7.2 Panel). Shop a wide variety of foam closures and foam plugs.


Galvanized square tube in stock in 14 gauge at many different lengths. Galvanized tube used for metal fence posts, metal carports, deck posts, panic bar gates, or building supports.


Metal Purlins and Cee Channel are in stock. Cee Purlins and Zee Purlins. Galvanized and Red Prime Painted. Immediate availability.


Buy Metal Roof Sealant. Available In A Variety Of Colors And Sizes. NovaFlex Construction Silicone Colored Caulk for Metal Roofing Applications.

Western States Metal Roofing - Pipe Flashing on a Metal Roof install Blog

We offer a wide range of pipe flashings in both square and round. Shop now.


Proper metal roof ventilation is essential for a healthy indoor environment. Our ProfileVent ventilation products are an intelligent solution for your roof.


Find high strength moisture protective covering for the underlayment of your metal roof.


All of S-5!’s snow guard retention systems dramatically reduce these risks associated with rooftop avalanches while maintaining the clean lines of the roof. With multiple options to choose from, you can browse our selection of metal roof snow stops to see which product will work the best for your metal roof.


S-5! provides the easiest, most cost-effective way to install solar panels directly to standing seam metal roofs.

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T-8 Plankwall: A Better Alternative To Longboard Siding & Knotwood
Lauren Risotto

By: Lauren Risotto on March 26th, 2020

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T-8 Plankwall: A Better Alternative To Longboard Siding & Knotwood

Metal Siding | T-8 Plankwall®

You want a walnut wood look for your siding, but you don’t want the problems or maintenance that goes along with wood. Luckily, there’s the alternative of using metal siding that is designed to replicate the appearance of walnut wood.

There are three types of metal panels that are made to mimic wood: T-8 Plankwall®, Longboard® Siding, and Fabral Knotwood™.



At Western States Metal Roofing, while we only manufacture T-8 Plankwall®, we want you to be fully informed of the differences between the three wood-inspired panels.

In this article, we will compare T-8 Plankwall®, Longboard Siding, and Fabral Knotwood™ based on:

  • Cost
  • Metal Panel Specifications
  • Panel Warranty
  • Material: Aluminum v. Galvalume Wood Grain Patterns
  • Panel Applications


T-8 Plankwall®

The cost of T-8 Plankwall® is between $5-$6 per square foot.

Longboard Siding

The price of Longboard Siding ranges from $14- $18 per square foot.

Fabral Knotwood™

Fabral Knotwood™ can cost between $12- $15 per square foot.

Authentic walnut wood panels generally cost between $8-$10 per square foot. T-8 Plankwall® is a cost-saving alternative compared to both the other replicated wood panels and also actual walnut wood itself.


Metal Panel Specifications

T-8 Plankwall®

T-8 Plankwall® is made from galvalume metal in a 24-gauge. The concealed fastener panels are 1 inch high, 8 inches wide and 1 foot to 45 feet long. They consist of formed metal sheets with vertical panel edges, with flush joints or reveal between panels. The reveal measures 7.75” face with .25 reveal.

The metal panels are painted to replicate woodgrains with four different patterns within each panel to prevent a repetitive, unnatural look.

Longboard Siding

Longboard® Siding is made from 1/8″ thick aluminum and has concealed fasteners. The length of each panel is 24 feet long with 3 profile sizes (4″ Groove, 6″ Groove, and 6″ Channel). The design is created with AAMA 2604 certified powder coatings.

Fabral Knotwood™

Fabral Knotwood™ is made from aluminum panels that are 18 feet, 6 inches in length. The wood grain pattern on the panels is created using ink and a polyurethane or polyester powder coating.


Panel Warranty

T-8 Plankwall®

T-8 Plankwall® painted panels come with a 40-year limited paint warranty. The surface will be either repainted, repaired, or replaced if crackling, flaking, or peeling occurs.

Longboard® Siding

Longboard siding panels come with a 15-year finish warranty that guarantees against buckling or corrosion. The panels will be repaired or replaced as long as the damage falls within the guidelines of the warranty.

Fabral Knotwood™

Fabral Knotwood™ comes with a 15-year finish warranty and a limited lifetime warranty.


Material: Aluminum v. Galvalume Wood-Grain Panels

There are certain conditions when you have to be careful about which panel you use.

While both Longboard® and Fabral Knotwood™ are made of aluminum, T-8 Plankwall® is made from galvalume.

Properties near the ocean, especially those that are within one mile from the ocean, are surrounded by a high amount of salt particles in the atmosphere. The galvalume tends to not hold up as well as aluminum does when exposed to salt spray. Any area with excessive moisture can also be problematic for galvalume.

To prevent any issues resulting from geographic elements, properties that are waterfront, or close to water, should not use T-8 Plankwall®.


Applications: What Can I Use Walnut Wood Metal Panels For?

There are different ways Walnut Wood metal panels can be used. The metal panels are made for interior and exterior applications and can be used either vertically or horizontally. Some ideas on how to use each panel are listed below.

T-8 Plankwall® Applications

    • Interior Accent Wall
    • Exterior Siding
    • Soffit
    • Interior Ceiling
    • Interior Wall Panels

Longboard Siding Applications

    • Cladding
    • Linear Metal Soffits
    • Linear Metal Ceilings
    • Thermally Broken Sub-structure
    • Link and Lock Battens
    • Privacy Screens and Slats

Fabral Knotwood™

    • Fencing
    • Gates
    • Screens
    • Siding
    • Soffits
    • Battens
    • Decking
    • Awnings & Pergolas
    • Railings

Which Wood-Grain Metal Panel Should I Use?

When you’re looking to incorporate a walnut wood aesthetic into your interior or exterior design without having to do any labor or maintenance to materials, you have multiple metal panel options to choose from.

Take factors such as your budget, location, project type and panel specifications into consideration to decide which metal panel is best for your project.

Continue on to learn more about T-8 Plankwall® Walnut Wood including product specifications and installation information.


T-8 Plankwall Product Guide

Click here to request a free metal roofing sample in your favorite color!

Get a Free Quote for Metal Roof or Metal Wall Panels Today! Click Here

About Lauren Risotto

Lauren is the Content Manager at Western States Metal Roofing and provides insight on content creation and product promotions.