How to Finish Your Lanai Door – The Elegant Alternative to French Doors

posted on:
December 19, 2008
written by:
Jeffery Jarvis

How to Finish Your Lanai Door – The Elegant Alternative to French Doors

 

Finishing for Beauty and Durability

Your Lanai Door system is a premium investment in your home, designed to provide large glass openings, natural light, and seamless transitions. To protect and highlight its beauty—especially for our wood and aluminum-clad wood folding doors—proper finishing is critical.

Finishing a Lanai Door is similar to finishing a French door, but because our systems often span larger openings and use premium hardwoods, the attention to detail matters even more. A high-quality finish protects your investment from moisture, climate fluctuations, and daily use, while bringing out the natural elegance of the wood.


Key Principles for Finishing Lanai Doors

  • Seal all six sides of each panel to protect against swelling, warping, or shrinking.

  • Plan ahead—proper finishing requires time, patience, and multiple coats.

  • Don’t rush—a deep, glossy, professional look requires repeated sanding and careful layering of finish.

  • Ongoing maintenance—no finish lasts forever; re-sealing as needed ensures decades of performance.


Step-by-Step Guide to Finishing

1. Acclimate the Wood

Before finishing, bring your Lanai doors into the home or project site and allow them to adjust to occupancy-level temperature and humidity. Ensure drywall, plaster, and surrounding construction are fully cured (at least one week). This prevents moisture-related expansion or contraction during finishing.

2. Prepare the Workspace

  • Keep dust levels low to avoid imperfections in the finish.

  • Mask off hardware, glass, and surfaces that should remain untreated.

  • Ensure stable temperature and humidity during the process.

3. Apply a Seal Coat

Moisture can penetrate through edges, backs, and ends just as easily as the front faces. For long-lasting protection:

  • Apply a clear sanding sealer or wood sealer to all surfaces, including edges.

  • Pre-seal any areas that will be inaccessible after installation.

  • Additional coats may be needed for full coverage—always follow manufacturer instructions.

4. Sand Smoothly

Sanding is critical for a professional finish:

  • Use fine-grit paper (280 or higher) between coats.

  • Vacuum the area thoroughly to prevent dust from settling into wet finishes.

5. Clean the Wood

  • Wipe panels with a cloth dampened in mineral spirits to highlight sanding marks or flaws.

  • Smooth out imperfections and remove all dust with a dry cloth.

6. Apply Stain (Optional)

  • Choose a compatible stain and apply generously with a rag, brush, or lambs wool applicator.

  • Allow stain to penetrate for 5–10 minutes, then wipe away excess.

  • Let dry 24–48 hours before sealing.

7. Seal and Apply Finish Coats

  • Apply the first finish coat over the dry stain or bare sealer.

  • Allow to dry completely, then lightly sand and clean with a tack cloth.

  • Apply a second or third coat for a durable, glossy finish.

  • Use only finishes that are compatible with your sealer and stain.


Ongoing Maintenance

Just like French doors, wood and clad Lanai Doors require periodic maintenance:

  • Re-seal exposed surfaces as needed to maintain moisture protection.

  • Inspect annually for finish wear, especially in exterior or high-exposure areas.

  • Clean gently with lemon oil or mild cleaners to maintain beauty without damaging the finish.


Why Finishing Matters

Proper finishing not only preserves the wood but ensures the system operates smoothly for years.

By finishing and maintaining your Lanai Doors correctly, you’re protecting your investment and ensuring that your system remains a beautiful, durable alternative to French doors for decades.