New Home Construction
Full custom home construction from foundation to finish.
- Custom floor plans for your lot
- Foundation-to-finish oversight
- Moisture-resistant construction
Deck & Outdoor Structures in Eugene, Oregon
Marty Mar Construction Inc builds custom decks, covered porches, pergolas, and timber-frame structures across Eugene, Springfield, Cottage Grove, and Lane County. Every outdoor structure is engineered for the region's heavy rainfall, moisture exposure, and wet winters — built for year-round use in the Willamette Valley.
Licensed & Insured
Since 2007
Eugene & Lane County
Outdoor Living
What Outdoor Structures Does Marty Mar Build in Eugene?
Marty Mar Construction builds custom decks, covered porches, pergolas, shade structures, and timber-frame pavilions throughout Eugene and Lane County. Every structure is engineered for Oregon's heavy rainfall, persistent moisture, and wet soil conditions — with footings, posts, and framing sized for the Willamette Valley.
Marty Mar Construction Inc is a licensed Oregon general contractor based in Eugene, building decks and outdoor structures across Lane County since 2007.
Building a deck in Eugene means engineering for one of the wettest climates in the Pacific Northwest. With 47 inches of annual rainfall, persistent moisture that promotes rot and mold, and saturated clay soils that shift with the seasons, a deck built without proper drainage and moisture protection won't last. Outdoor structures here demand materials and methods that handle constant water exposure.
We engineer every outdoor structure for your specific conditions. Footings go below the local frost line with proper drainage. Framing is sized for actual load conditions, not minimums. We use composite decking or naturally rot-resistant species rated for moisture exposure — and we build with stainless or coated fasteners that won't corrode and streak.
Last updated: June 2026
What We Build
Which Outdoor Structure Is Right for Your Eugene Property?
The right outdoor structure depends on your lot, your usage pattern, and Eugene's weather. Open decks maximize the dry summer months. Covered porches extend the usable season through Oregon's rainy fall, winter, and spring. Pergolas split the difference — shade in summer, open sky when you want it.
Custom Decks
Ground-level, elevated, and multi-level composite or timber decks with railing systems, stairs, and integrated lighting. Engineered for Eugene's wet climate.
Covered Porches
Roofed outdoor living spaces with sealed ceilings, integrated lighting, and structural posts rated for Oregon's rain loads. Usable year-round in Eugene.
Pergolas & Shade Structures
Open-beam or louvered shade structures for patios and outdoor dining. Optional retractable canopy and string-light wiring for evening use.
Material Guide
What Decking Material Works Best in Eugene's Wet Climate?
The best decking material for Eugene depends on your budget, maintenance tolerance, and aesthetic preference. Composite decking offers the best long-term value for the Willamette Valley's rain and moisture conditions. Cedar looks natural but needs annual care. Pressure-treated is the most affordable entry point.
| Material | Cost / sq ft | Lifespan | Maintenance | Eugene Rating |
|---|---|---|---|---|
| Composite (Trex, TimberTech) | $60 – $100 | 25-50 years | Wash annually | Best |
| Cedar | $40 – $65 | 15-25 years | Seal every 1-2 years | Good |
| Pressure-Treated Pine | $30 – $50 | 10-15 years | Seal every 1-2 years | Fair |
| Ipe Hardwood | $80 – $140 | 40-75 years | Oil annually or let silver | Best |
Our Process
How Does Deck Construction Work With Marty Mar?
Our deck building process covers four stages: site assessment and design, permitting and material procurement, foundation and framing, and decking installation with final inspection. Most standard decks are completed in 1-3 weeks after permit approval.
Site & Design
Assess lot slope, soil conditions, and access. Finalize design, material selection, and detailed estimate.
Permits & Materials
Pull Lane County permit, order decking and hardware, and schedule build date around material delivery.
Foundation & Framing
Dig and pour footings below frost line, set posts, install beams and joists — inspected before decking goes on.
Deck & Finish
Install decking, railings, stairs, lighting, and final trim. County inspection and walkthrough to confirm every detail.
Common Questions
What Do Homeowners Ask About Deck Building in Eugene?
Homeowners considering a deck in Eugene and Lane County typically ask about costs, materials, permits, moisture engineering, and build timelines. Below are the questions we hear most — with direct answers from our team.
How much does a new deck cost in Eugene, Oregon?
Deck costs in Eugene range from $30-$50 per square foot for pressure-treated lumber to $60-$100+ per square foot for composite or hardwood decking. A typical 300 sq ft composite deck runs $20,000-$35,000 installed, including railings, stairs, and footings. Complex multi-level designs and covered structures cost more.
What decking material works best in the Eugene area?
Composite decking (Trex, TimberTech) is the most popular choice in Eugene — it handles heavy rainfall, moisture exposure, and Oregon's wet winters without splitting, warping, or annual sealing. Cedar is a solid natural alternative but requires yearly maintenance. Pressure-treated pine is the most affordable but has a shorter lifespan in wet climates.
Do I need a permit to build a deck in Lane County?
Yes. Most decks over 30 inches above grade or attached to a structure require a building permit in Lane County or the City of Eugene. We handle all permitting, including structural plans, footing depth calculations, and inspection coordination from start to final sign-off.
How long does it take to build a deck in Eugene?
Most standard decks take 1-3 weeks from footing pours to final railing installation. Multi-level decks, covered structures, and pergolas with electrical run 3-6 weeks. Material lead times for composite decking are typically 1-2 weeks — we order before the build date to avoid delays.
Can you build a covered porch or pergola in Eugene?
Yes. We build covered porches, pergolas, shade structures, and timber-frame pavilions designed for the Willamette Valley's rain and wind conditions. Covered structures require engineered posts and footings rated for Oregon's structural code requirements, with proper drainage to handle Eugene's 47 inches of annual rainfall.
Are your decks engineered for Oregon's wet climate?
Yes. Every deck we build in the Eugene area is engineered to handle Oregon's rain and moisture loads per the Oregon Structural Specialty Code for your zone. Joists, beams, posts, and footings are all sized with proper drainage, moisture barriers, and rot-resistant materials — built for decades of Willamette Valley weather.
More Services
What Other Construction Services Do We Offer?
Beyond decks and outdoor structures, Marty Mar Construction handles new home construction, room additions, whole-home remodeling, and kitchen and bathroom renovations across the Eugene area.
Home Additions
Need more space? We design and build room additions, second-story expansions, and accessory structures that tie seamlessly into your existing home — matching materials, rooflines, and interior finishes.
- Seamless match to existing structure
- Second-story expansions
- ADU and garage conversions
Bathroom Remodeling
Transform your bathroom with custom tile work, walk-in showers, soaking tubs, floating vanities, and updated plumbing.
- Walk-in showers and soaking tubs
- Custom tile and vanity work
- Full gut or targeted upgrades
Build Your Outdoor Space
How Do You Get a Free Deck Building Estimate?
Call (541) 554-8181 or fill out our online form. We'll visit your property, assess the site, discuss your design and material preferences, and deliver a detailed written estimate — no cost, no obligation.