Westminster Elevated Deck with 12-Foot Marvin Door and Trex RainEscape

Location:

Westminster, CO

Materials Used:

Deckorators Voyage in Costa, Custom Fabricated Railing, Trex RainEscape, Marvin Door

Investment Range:

$100,000 to $115,000

A Full Rebuild Around One Very Big Door

The old deck was rotting and ready to fall. The homeowners wanted it gone and a true outdoor living space in its place, with one specific demand: a 12-foot sliding door cut into a 14-foot wall, opening the living room directly onto the new deck.

That’s a hard ask. Western Sky Designs took the job.

The 12-Foot Marvin Door

Marvin’s multi-slide tops out at 12 feet tall, and dropping a 12-foot opening into a 14-foot wall leaves almost no header room overhead and barely any jack-stud width on either side.

Solving that meant:

  • Engineered structural header sized to carry the load above
  • Reframing to redirect weight onto new bearing points

When open, the door erases the wall. When closed, narrow stile-on-stile sightlines keep the view to the deck almost frame-free.

Deckorators Voyage in Costa

The deck floor is Deckorators Voyage in Costa, a warm taupe with golden, driftwood undertones, finished with a darker picture-frame border and step nosings for definition.

Voyage’s Surestone mineral composite handles Colorado freeze-thaw cycling without warping, absorbs virtually no moisture, and offers 34% greater traction than capped composites in wet weather. Backed by a 50-year structural warranty.

Custom-Fabricated Railing with Slim Horizontal Infill

Western Sky Designs designed and welded the railing on-site rather than ordering panels from a catalog.

Black powder-coated steel posts and top rail frame the perimeter, with thin horizontal infill running between them. Sightlines almost disappear from inside the house, so the door opens onto a view rather than a railing.

A Covered Porch Section in Heavy Timber

Part of the deck sits under a stained gable roof with exposed timber posts and a tongue-and-groove plank ceiling. Recessed lighting runs through the planks. The roof shelters the door opening and bridges the indoors to the open-air section beyond.

A Dry Patio Underneath

A Trex RainEscape system runs above the joists, channeling rainwater into gutters and away from the structure below.

The result is a finished, dry patio at grade with a clean wood-plank ceiling overhead, paver flooring underfoot, and real use of what would otherwise be wasted space beneath an elevated deck: two outdoor levels, one footprint.

Built to Solve the Original Problem

Tear down the rot. Build something that lasts. Put a 12-foot door where almost nobody would have tried to put one.

A new elevated deck. A finished patio below. Custom railing that gets out of the way. And a door that turns the back wall of the house into a panoramic opening to the yard.

Our Work: Proof of Quality and Expertise

Curious about what we do? Check out our past projects, where precision meets creativity. These aren’t just decks and outdoor spaces; they reflect our dedication to getting every detail right.

Contract Questions

Stop! About to Sign That Deck Contract?

Make sure you’re not missing anything before you commit to building your outdoor space.

Contracts should protect you, the homeowner. But many leave huge gaps around permitting, warranties, and unexpected delays.



Download our Critical Questions Guide for free. It’s the ultimate protection plan to ensure your new outdoor living space is Built Better.

Written by Western Sky Designs, your trusted custom builders in the Greater Denver Area.