Services
Dock Sundecks and Roofs at Lake of the Ozarks
Top deck, roof, boat house, and party deck additions for existing docks at the Lake. Ameren-certified builders, written warranties.
Maximize the Dock
Why Sundecks and Roofs Earn Their Cost
Sundecks add usable living space at the Lake. A 2-well dock with a 20x20 sundeck becomes the social center of a lakefront property. Morning coffee with the cove view, weekend grilling, post-tubing relaxation, and a front-row seat for the 4th of July fireworks at Bagnell Dam. Properties with sundecks routinely show measurable resale uplift over docks without them.
Roofs serve a different purpose: protecting the boat. UV exposure is the single largest factor in boat finish degradation at the Lake. A covered slip extends gel coat life by years, keeps interior vinyl from cracking, and protects the engine bay from solar heat soak. Boat insurance carriers often reward covered storage with slightly lower premiums on the boat policy.
Most roof additions at Lake of the Ozarks trigger an Ameren permit because they change the dock's footprint and profile. Sundeck-only additions sometimes don't. Wet bar and kitchen build-outs add water and electric runs that need careful planning, plus shore-side coordination for the supply lines. The Ameren-Certified Dock Builder we connect you with handles the permit determination during the design phase.
Types and Methods
Sundeck and Roof Types
From a basic open deck to a full boat house with outdoor kitchen, the options scale with the budget and the use case.
Open sundeck
Top-deck living space without a roof. Typically built atop a 2-well or larger dock. Used for grilling, sunbathing, and watching the 4th of July fireworks. Lower cost, no roof permit complications.
Covered roof
Roof addition over slips. Single-slip, 2-well, or full-dock coverage. Available in single-pitch shed, hip, and gable styles. Protects boats from sun and weather, extends finish life.
Boat house enclosure
Full enclosure with walls. Maximum protection for stored boats. Common on premium properties where the boat collection includes high-finish wakeboats or restored classics.
Composite vs cedar decking
Composite (Trex, TimberTech) costs more upfront but lasts 25 to 30 years with minimal maintenance. Cedar costs less upfront but needs annual sealing and replacement every 8 to 12 years at the Lake.
Metal vs shingle roof
Metal roofs (standing seam, ribbed) dominate at the Lake. 30 to 40-year service life, sheds water fast, and stands up to wind events. Asphalt shingles cost less but typically need replacement every 12 to 18 years in lake exposure.
Wet bar or kitchen build-out
Premium sundeck additions include outdoor kitchens, wet bars, sinks, ice machines, and grill stations. Requires water and electric run from shore. Common on Glaize Arm premium builds.
Process
From Design to Done
Vision consultation
What do you want to use the deck for? Quiet morning coffee? Sunday party? Boat storage? The builder maps that to a configuration.
Site survey and weight study
Sundecks and roofs add significant weight to a floating dock. The builder verifies the existing dock's flotation can handle the addition or proposes added billets.
Design and material selection
Roof pitch, decking material, railing style, and accessory build-outs (wet bar, kitchen, lighting) are selected. Written quote follows.
Permit determination
Most roof additions trigger an Ameren permit. Pure sundeck additions sometimes don't. The CDB confirms based on the specific design and submits if needed.
Construction
Sundeck-only builds run 1 to 2 weeks. Roof additions run 2 to 4 weeks. Full boat houses with build-outs can run 6 to 10 weeks.
Walkthrough and warranty
Final inspection. Workmanship warranty in writing. The builder remains the warranty contact through the warranty period.
Cost Reference
2026 Sundeck and Roof Cost Ranges
Decking material, roof style, and build-out complexity drive the range. Composite decking and standing seam metal roofing typify the premium end.
| Addition Type | Typical Range |
|---|---|
| Open sundeck (basic) | $6,000 to $14,000 |
| Open sundeck with composite | $10,000 to $22,000 |
| Roof addition (single slip) | $8,000 to $18,000 |
| Roof addition (2-well) | $12,000 to $28,000 |
| Full boat house enclosure | $20,000 to $50,000 |
| Premium sundeck with build-outs | $25,000 to $75,000 |
2026 Lake of the Ozarks market ranges. Final pricing depends on cove access, water depth, design, and Ameren permit requirements.
Service Area
Sundeck Additions Across the Lake
Premium sundecks with kitchens and build-outs dominate on the Glaize and Niangua arms. Roof additions are common Lake-wide. Open sundecks fit any budget on any cove.
Frequently Asked Questions
Common questions about sundecks and roofs. For broader cost questions, see the 2026 dock cost guide on the blog.
Does a sundeck or roof require an Ameren permit?
It depends on the change to the dock footprint and profile. Most roof additions require an Ameren permit because they change the dock's silhouette and shading footprint. Pure sundeck additions (no roof, no change to the dock outline) sometimes don't. Wet bar or kitchen build-outs may require additional review because of plumbing and electrical runs. The Ameren-Certified Dock Builder confirms during the design phase.
What's the best decking material for the Lake?
Composite (Trex, TimberTech, AZEK) is the dominant choice on premium builds. It costs roughly twice cedar upfront but lasts 25 to 30 years with no annual sealing or board replacement. Cedar is still common on smaller decks and tighter budgets, but Lake humidity and UV exposure mean cedar boards usually need replacement on an 8 to 12-year cycle. Pressure-treated lumber is the cheapest, but it warps and splinters in Lake conditions and is uncommon on premium decks.
Can I add a kitchen or wet bar to my dock?
Yes, and it's increasingly common on premium Glaize Arm and Niangua Arm builds. Outdoor kitchens at the Lake typically include a grill station, prep counter, sink, beverage cooler, and storage. Water and electric have to run from shore through the gangway, which adds cost and complexity. Budget $15,000 to $40,000 for the kitchen build-out alone on top of the sundeck or roof structure.
How much weight can a sundeck hold?
Most floating dock sundecks are designed for 40 to 60 lb per square foot of live load (people, furniture, grills). A typical 2-well dock with a sundeck can comfortably host 15 to 25 people. The limiting factor is usually flotation, not framing. If you're planning regular large gatherings, tell the builder up front so the billet capacity is sized for the load.
What roof style works best for the Lake?
Standing seam metal in a single-pitch shed or hip configuration is the most common premium build. Standing seam metal handles wind events well, sheds water fast, and lasts 30 to 40 years. Hip roofs perform better than gables in straight-line wind. Asphalt shingle roofs are still available but typically need replacement every 12 to 18 years in Lake exposure, so the lifetime cost is higher.
Will a roof affect my insurance?
Roof additions typically increase your dock's insurable value, so your dock and watercraft structure rider may need a coverage adjustment. Roof additions also reduce some insurance risk (sun damage to stored boats, hail damage to interiors), which some carriers reflect in slightly lower premiums on the boat itself. Tell your insurance agent about the addition before construction wraps.
Want more out of your dock?
Add a sundeck, a roof, or a full boat house. The Ameren-certified builders we work with handle the design, permit, and build.