Smooth, Accessible, and Weather-Tight
Lanai Doors® offer three threshold systems designed for seamless transitions, ADA compliance, and all-weather performance. Whether your project calls for an indoor flush finish, a weather-tight seal for exterior durability, or ADA accessibility for commercial or residential use, Lanai has a threshold solution to match.
Standard Threshold – Superior Weatherproofing
Our Standard Threshold is engineered to provide a tight, weatherproof seal, making it ideal for:
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Cold climates with snow and ice.
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Exposed locations with direct wind and rain.
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Applications requiring maximum weather resistance.
This option is similar to thresholds used with sliding glass doors and French doors, but with improved engineering and sealing performance.
Flush Guide – Seamless Transitions Inside and Out
For projects prioritizing clean design and unobstructed movement, our Flush Guide system is the perfect solution. Recessed directly into the floor, the Flush Guide delivers:
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A smooth, seamless transition between rooms or between indoor and outdoor spaces.
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Barrier-free design, eliminating raised tracks or step-overs.
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A minimalist look that enhances open floorplans.
This is an excellent choice for interior applications or for exterior openings that have adequate overhangs or coverage from the elements. Unlike common French door thresholds, the Lanai Flush Guide prioritizes flow and accessibility without sacrificing structural performance.
Low Rise ADA Guide – Accessibility with Durability
For commercial spaces and ADA-compliant projects, Lanai offers the Low Rise ADA Guide. This system is designed for:
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Restaurants, storefronts, and public spaces.
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Homes requiring ADA accessibility.
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Projects where a Flush Guide isn’t possible due to exposure or site conditions.
The Low Rise Guide ensures compliance with ADA requirements while maintaining a low-profile threshold that supports easy passage for wheelchairs, strollers, and foot traffic—without compromising weather protection.
Why Choose Lanai Threshold Systems Over French Doors?
Traditional French door thresholds often force a compromise between weather protection and accessibility. Lanai threshold systems are engineered to offer both:
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Weather-tight seals to protect against rain, wind, and drafts.
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Seamless transitions for open floorplans and indoor-outdoor living.
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ADA compliance for commercial and residential accessibility.
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Custom options to suit your architectural and lifestyle needs.
Technical Resources for Architects and Builders
For design professionals, our Architect’s Page includes detailed cross-sectional diagrams of each threshold option, making it easy to integrate Lanai systems into your project specifications.