The only AUTHORIZED CANADIAN DISTRIBUTOR
GapCap cleanly covers seasonal contraction gaps at corners,
fascia joints, and stair risers. Precision-engineered for a
seamless, professional finish on any deck.
Fits Wood & Composite

Unsightly raw gaps caused by seasonal contraction leave edges exposed to the elements and degrade the finish over time.

A clean, seamless finish that protects the core material and completely hides contraction gaps from view year-round.
Precision CNC-milled caps designed to match standard composite deck angles. Available in three foundational colors to blend seamlessly with any build.

Installs quickly and securely using standard composite deck screws. No proprietary or specialized hardware required for fastening.

Achieve a seamless, flush-mount finish. Every pack includes exact-match color plugs that conceal installation hardware completely.

Both TopCap™ and FasciaCap™ come in all three: Straight (0°), Angled (45°) and Square (90°).
Functions flawlessly on new builds and existing treated or composite decks.

Partner with GapCap Canada to deliver the ultimate seamless deck finish to your clients while improving your margins, plus wholesale access to 1,300+ decking, railing, hardscape, and fencing products from other leading brands we carry.
Volume discounts on GapCap corner trim
Priority Canada-wide shipping
Dedicated account manager
Free retail POS display units
Submit your details below. Our wholesale team reviews applications daily and will activate your account within 24 hours.
Got questions about tolerances, material compatibility, or logistics? Find the technical details below to ensure a seamless installation.
GapCap is engineered to accommodate natural expansion and contraction of composite and treated lumber. It provides enough coverage to hide seasonal gaps while allowing boards to move freely beneath the cap.
Absolutely. GapCap's dimensions and colour profiles (Grey, Brown, Black) are designed to closely complement standard Trex board thicknesses and finishes for a seamless look.
Yes. GapCap works seamlessly with TimberTech composite and PVC lines, ensuring a flush fit and matching aesthetic across different profiles and product lines.
Yes. GapCap is designed for both new builds and retrofits. Simply secure it over the existing joint using standard composite deck screws—no dismantling required.
Yes, as the authorized Canadian distributor, we ship nationwide. Standard shipping times apply, with expedited options available for commercial and contractor projects.

The Ultimate Deck Shop is GapCap's exclusive authorized Canadian distributor, and a full-line wholesale supplier of decking, railing, hardscape, and fencing brands to contractors and retailers across Canada.
GapCap Canada Support c/o The Ultimate Deck Shop
Saskatoon: 320 68 Street | 306-249-3325
Regina: 141 4 Ave E | 306-359-3325

© 2026 GapCap Canada.
All rights reserved.