Availability: 24/7
Expert Underdeck Systems Installation in Tacoma, WA.

Turn the Space Beneath Your Deck Into Functional Living Area
That empty space under your second-story deck? It’s wasted square footage just waiting to happen. Dr.Decks specializes in transforming this overlooked area into a dry, comfortable outdoor room. With 35 years of experience and over 1,000 completed projects, Jason Russell helps Tacoma homeowners squeeze every bit of value from their deck, top to bottom.
Our Services
System Design & Installation
[01]
Full-service design and build tailored to your home, deck structure, and outdoor living goals.
Design Consultation & 3D Models
[02]
Detailed 3D renderings so you can visualize your finished underdeck system before work begins.
Foundation & Framing Work
[03]
Structural prep and framing completed to support your underdeck system properly from the ground up.
Underdecking Permit Acquisition
[04]
All required permits handled on your behalf, keeping your project compliant and on schedule.
Rebuild or Replacement
[05]
Outdated or failing underdeck systems removed and replaced with updated materials and improved drainage design.
New Construction
[06]
Complete new underdeck installations designed to maximize the dry, usable space beneath your elevated deck.
Custom Deck Board Bending
[07]
Jason's 25 years of bending expertise creates curved designs and flowing transitions that standard installations can't match. This specialty skill elevates every project.
Why Underdecking Changes Your Outdoor Space
Professional underdeck systems installation creates sheltered, weather-protected space beneath elevated decks. Here's what a finished lower level brings to your home.
Why Choose Dr.Decks
Proven Experience
Thirty-five years and over 1,000 projects. Jason Russell has handled everything from simple drainage systems to elaborate multi-zone outdoor rooms beneath elevated decks.
Family Owned and Operated
Dr.Decks is family-owned and Tacoma-rooted. When you work with Jason, you're getting someone who genuinely cares about the outcome, not a contractor rushing to the next job.
3D Deck Design
Dr.Decks’ 3D modeling shows exactly what your finished space will look like before construction starts. No surprises, no misunderstandings, just clarity.
Quality Materials
Wood, cedar, redwood, exotic hardwoods, composite, PVC, and Timbertech by Azek. Dr.Decks works with materials built to handle Pacific Northwest weather and deliver decades of performance.
Certified Installer with Warranty Protection
Dr.Decks is a licensed, bonded TimberTech installer. You get a 1-year workmanship warranty (extendable to 5 years) plus TimberTech material warranties up to 50 years.
Free Estimates
Jason visits your property, assesses the space, talks through your vision, and provides a clear quote. No hidden fees, no pressure tactics.

Types of Underdeck Systems
Jason installs several system types to fit your home, deck structure, and goals. Each option creates a finished ceiling beneath your elevated deck that actually keeps you dry.
Panel-Based Systems
- Flat or profiled panels mount between joists
- Creates a smooth, finished overhead ceiling
- Water runs to edges where drainage takes over
- Clean look for open outdoor living spaces

Gutter-and-Channel Systems
- Network of channels collects water between joists
- Routes runoff directly to gutters
- Space below stays dry in heavy downpours
- Built for Pacific Northwest rain conditions

Snap-In Systems
- Modular panels click into place between joists
- Clean lines and straightforward installation
- Easy future access if needed
- Great for DIY-friendly finishing projects

Custom Fabricated Systems
- Built for unique deck shapes, angles, and layouts
- Ideal where off-the-shelf systems won’t fit
- Fabricated to drain properly every time
- Jason builds it to fit your deck exactly
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Awards & Recognition
Dr.Decks doesn’t just install systems. Jason builds award-winning projects. Featured in the Wall Street Journal, Professional Deck Builder Magazine, and Deck Specialist Magazine, Dr.Decks is the most awarded and celebrated deck builder in the Northwest.
- Deck of the Month, March 2006
- TimberTech Contractor of the Quarter, 2011
- Silver Medal, Northwest Flower and Garden Show, February 2013
- Overall Winner, NADRA’s 2025 National+ Deck Competition for the Kiki Project













