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Variform Dual Undersill Trim, Dover White, 12 ft. 6 in.
Regular price $38.50Orders start at $399 — combine any items to reach the minimum. Learn more
Variform Dual Undersill Trim, Dover White, 12 ft. 6 in.
The Variform Dual Undersill Trim is a vinyl siding finishing trim in Dover White, 12 ft. 6 in. long, sold per piece. Its dual-profile design receives the cut top edge of siding panels at windows, soffits, and other undersill locations for a finished, weathertight edge.
Key Features:
- Dual profile: Dual undersill design receives the cut top edge of siding panels for a clean finished edge.
- Dover White: Finished in Dover White to coordinate with common siding color schemes.
- 12 ft. 6 in. length: Long 12 ft. 6 in. length reduces laps and speeds installation on wide walls.
- Siding finishing trim: Part of the Variform exterior trim line for siding installations.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Variform |
| Sell unit | 1 piece, 12 ft. 6 in. |
| Product line | Variform Dual Undersill Trim |
| Available colors | Dover White |
| Available sizes | 12 ft. 6 in. |
| Length | 12 ft. 6 in. (150 in.) |
| Finish / texture | Dover White |
| Intended use | Undersill finishing trim for vinyl siding installations |
| Pack quantity | 1 piece |
Coverage & How Much You Need:
One 12 ft. 6 in. piece covers 12.5 linear feet of wall under windows, soffits, or eaves where the top course of siding must be finished. Measure linear feet of undersill locations and divide by 12.5, adding a little for cuts and waste.
Fit and Compatibility:
Use with vinyl siding panels at undersill conditions under windows, at eaves, and at soffit transitions. Pair with other Variform trim profiles for corners, starter, and casing details; those pieces are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 12 ft. 6 in. piece of Variform Dual Undersill Trim in Dover White.
Q: How much does one piece cover?
A: Each piece spans 12 ft. 6 in., or 12.5 linear feet, of undersill condition.
Q: What is undersill trim used for?
A: It receives the cut top edge of the uppermost siding course under windows, eaves, and soffits to finish and hold the panel.
Q: Does it come in other colors?
A: Only Dover White is listed for this item in the sources.
Q: What material is it?
A: The material is not stated in the provided product information.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Undersill trim is the finishing detail that makes a siding job look complete, so order enough 12 ft. 6 in. lengths to span each window and eave line with minimal laps. Nail it loosely through the hem slots so the siding can move with thermal expansion. Keep the trim level across the wall; a slightly out-of-level undersill will telegraph into the top siding course.
Use ladder safety practices and fall protection when installing trim above ground level, and follow the siding manufacturer's installation instructions.
Order Variform Dual Undersill Trim in Dover White for a clean finish on your siding job.
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