Need a wider toilet flange to install in a concrete subfloor with a 6-inch hole and no anchoring surface for standard flanges.

No standard or readily available extra-wide toilet flange (e.g., 8-inch) that fits into a large concrete hole and provides enough surface area for secure mounting.

Opp. Score

Severity

3Medium

Willingness to Pay

implied

Added

May 19, 2026

Workarounds Described

Fills the gap with epoxy as a makeshift anchoring solution

App Concept

FlangeFix WideBase

FlangeFix WideBase is a heavy-duty adjustable toilet flange designed for concrete and large-diameter holes. It features an expandable base that spans up to 8 inches, with pre-drilled anchor points for concrete screws, eliminating the need for epoxy workarounds. It saves plumbers time and ensures a rock-solid, leak-free toilet installation.

Key Features

Adjustable base diameter from 6 to 8 inches to fit oversized holes
Built-in concrete screw anchor points on a reinforced flange ring
Corrosion-resistant ABS or PVC construction with stainless steel screws
Includes a leveling shim pack to accommodate uneven slab surfaces

Target Users: Plumbers and DIY homeowners installing toilets on concrete slabs or patching large flange holes

Revenue Model: $24.99 per flange retail, with volume discounts for plumbing supply distributors

Part of App Idea

Need a wider toilet flange to install in a concrete subfloor with a 6-inch hole and no anchoring surface for standard flanges.

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