How much does a 30-foot pier cost
A 30-foot pier is a common size on Lake Country lakes, long enough to clear a shallow shelf near shore without pushing into a large loading platform or extra boat slips. Instead of quoting one number, here is how the pieces actually add up so you can check a quote against something real.
Sections and frame
A roll-in aluminum pier commonly comes in sections around 8 feet long, so a 30-foot pier typically means four sections, with the last one trimmed or a shorter section used to hit the exact length. Frame cost scales with the number of sections and the width of each one, and stays within Wisconsin's 6-foot width standard for a walkway under the exempt pier rules described in our pier permit rules guide.
Decking
Decking material is one of the biggest swing factors in total cost. Wood decking runs a lower per-square-foot cost than composite decking, while composite trades a higher price for less seasonal maintenance. See our aluminum vs wood vs cedar decking guide for how that tradeoff plays out over several seasons of use.
Hardware and legs
Legs, feet, bolts, and connecting hardware add up across four sections, and the cost here depends on what kind of foot each leg needs for your specific lake bottom. A muck bottom needing wider pads or auger-style feet costs more in hardware than a simple sand bottom does. Our lake bottom guide explains why.
Installation labor
Installation labor is typically billed by the hour, and a straightforward 30-foot pier on a firm, accessible bottom generally installs faster than one on a difficult bottom or with tricky shoreline access. Timing also matters: spring installation during the peak rush can mean less flexibility on scheduling than booking early, covered in our spring installation timing guide.
Putting it together
Across sections, decking, hardware, and labor, a new pier project of this size generally falls within the broader range HomeGuide publishes for new pier and dock construction, roughly $3,000 to $50,000 or more depending heavily on decking material, length, and site conditions, per our dock and pier installation cost guide. A straightforward 30-foot aluminum-frame pier with standard decking on a firm bottom tends to sit well below the top of that range, while composite decking, a wide loading platform, or a difficult bottom pushes the number up.
Adding a lift
A boat lift is priced separately from the pier itself and adds meaningfully to the total project cost. See our boat lift cost guide for capacity-based ranges if you are budgeting for both at once.
How site access affects the total
A shoreline with easy truck or trailer access lets a crew unload sections close to the water and move fast. A steep bank, a long carry from the driveway, or a neighboring property that has to be crossed to reach the shoreline all add labor time that a quote should reflect. If your site has tricky access, mention it when you request pricing so the estimate you get back is close to what you will actually pay. A quick site visit from the installer before a final quote is worth requesting for exactly this reason.
Frequently asked questions
Is a 30-foot pier long enough for most Lake Country lakes? It depends on the shoreline slope at your specific property. Some shallow bays need more length to reach usable depth, while others reach adequate depth in less than 30 feet.
Should I get more than one quote? Yes. Decking choice, bottom conditions, and labor rates vary enough between installers that a second quote is worth the time before committing to a full project.
Sources: HomeGuide dock and pier cost data.