If you’re thinking about updating your backyard or building a new deck, here’s a friendly rundown of what we can help with. At Alki Deck Builders here in West Seattle, we do all kinds of things that make an outdoor space more comfortable, more functional, and simply nicer to use. A lot of homeowners ask us about spiral staircases, under-deck systems like Haven, and Fortress® steel framing and these are all things we actually install all the time.
Spiral Staircases
A spiral staircase is honestly one of the coolest additions you can put on a deck. It saves space, looks clean and modern, and works great when you want to connect a second-story deck to your backyard or patio.
Why people choose them:
- they take up very little room;
- durable, weather-resistant metal option;
- clean, modern look;
- lots of design and railing styles to pick from.
We handle the whole process — design, materials, permits, and installation — so everything fits your deck perfectly.
Haven Under-Deck Systems (Dry Space Under Deck)
If you want to make the space under your deck usable, a Haven under-deck system is the way to go. It keeps everything below dry and clean, no matter the weather. Think of it like creating a second outdoor room without building an addition.
What you get:
- the area underneath stays 100% dry;
- great for a lounge space, storage, or a covered patio;
- clean, finished ceiling look;
- works with lighting, heaters, fans, etc.
And because we live in Seattle — with constant rain — this upgrade is seriously worth considering.
Fortress® Steel Deck Framing
If you want your deck to last for decades and stay perfectly straight, Fortress® steel framing is one of the best investments you can make. It’s much stronger than wood and doesn’t warp, rot, twist, or attract pests.
Why homeowners love it:
- extremely long lifespan;
- stays straight — no sagging or warping;
- fire-resistant, great for grilling or fire pits;
- works with any decking surface.
We install Fortress frames for people who want a premium, long-lasting deck structure that holds up perfectly in our wet climate.
How We Work
We keep things simple: we stop by, take a look at your space, talk about what you want, come up with ideas and pricing, and then build everything exactly how we discussed. No pressure. No upselling. Just honest recommendations.
We install spiral staircases, under-deck systems, and steel framing regularly, so we can help you figure out which options make the most sense for your home.
Want Us to Take a Look at Your Project?
If you want us to come by, check out your yard, and give you options, just let us know. We’re happy to walk through ideas with you. Our goal is simple: make your outdoor space comfortable, beautiful and unique.
