Tamlyn XtremeTrim Heavy Duty Aluminum J Moulding, 10 ft Piece - image 1

Tamlyn XtremeTrim Heavy Duty Aluminum J Moulding, 10 ft Piece

Regular price $25.53

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Tamlyn XtremeTrim Heavy Duty Aluminum J Moulding, 10 ft Piece


Tamlyn XtremeTrim J moulding is a heavy duty aluminum J-channel trim, 10 ft per piece, for finishing siding edges around openings and at panel terminations. It is sold per piece and works with fiber cement and other siding systems using XtremeTrim accessories.


Key Features:

  • Heavy duty gauge: Manufactured as a heavy duty J-molding for demanding siding details.
  • Aluminum build: Aluminum construction resists rust in exterior applications.
  • 10 ft length: Each piece is 10 ft long for fewer joints per run.
  • XtremeTrim line: Part of the Tamlyn XtremeTrim accessory system for finished siding edges.
  • J-channel profile: The J profile receives siding panels and trim ends for a clean termination.

Specifications Table:

Specification Details
Brand Tamlyn
Sell unit 1 piece, 10 ft
Product line XtremeTrim
Material Aluminum
Profile J-channel / J-molding
Grade Heavy duty
Length 10 ft

Coverage & How Much You Need:

One 10 ft piece covers 10 linear feet of edge requiring J-channel; total the footage around windows, doors and panel ends and divide by 10 ft per piece, allowing for cuts.

Fit and Compatibility:

Designed as part of the Tamlyn XtremeTrim accessory line used with fiber cement and other siding installations. Matching XtremeTrim profiles, fasteners and sealants are sold separately.


Frequently Asked Questions (FAQ):

Q: What is included?
A: One 10 ft piece of Tamlyn XtremeTrim heavy duty aluminum J-molding.


Q: What is it used for?
A: It receives and conceals siding panel ends around windows, doors and other terminations for a finished edge.


Q: Will it rust?
A: It is made of aluminum, which does not rust in exterior use.


Q: How is it installed?
A: It is fastened to the wall with appropriate exterior fasteners, with panels or trim inserted into the J channel.


Q: How many pieces do I need?
A: Measure the total footage of edges to be trimmed and divide by 10 ft per piece, adding for cuts and waste.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

Use heavy duty J molding where siding edges need a robust, straight termination, particularly on fiber cement jobs where standard vinyl J-channel may look light. Miter or butt corners cleanly and leave room for panel movement. Pair with other XtremeTrim profiles for a consistent trim package on the facade.

Cut aluminum edges are sharp; wear gloves and eye protection when cutting and handling trim pieces.


Order Tamlyn XtremeTrim heavy duty aluminum J moulding for clean, durable siding terminations.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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