Tufdek typically costs $9 to $18 per square foot installed on the Eastern Shore. For a standard 200 square foot deck, that works out to roughly $2,200 to $3,600. A large 600 square foot deck usually runs $5,400 to $9,600.
If a number was all you came for, you now have it, which puts you ahead of most people searching this, because almost nobody publishes Tufdek pricing at all. Search “how much does Tufdek cost” and you’ll find page after page explaining what affects the price, then “contact an authorized dealer for a quote” right where the number should be.
We’re a Tufdek installer on the Eastern Shore, so we understand why the manufacturer doesn’t publish prices every deck genuinely is different. But you should be able to start a conversation with a contractor knowing roughly what you’re getting into.
Here’s what the rest of this guide covers:
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Full cost table by deck size — 100 to 1,000 square feet
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What lands you at $9 vs. $18 per square foot
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Substrate repair costs the hidden expense that surprises most homeowners, and the single biggest reason quotes come in higher than expected
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Why coastal Delaware and Maryland decks cost more to waterproof than inland ones
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Tufdek vs. composite decking an honest cost and function comparison
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What a proper quote should include, line by line
Tufdek Cost Per Square Foot: The Real Numbers
Here’s what waterproof vinyl decking typically runs, installed, on the Eastern Shore:
$9 – $18 per square foot installed, for most residential projects.
That’s a wide range on purpose, and the spread is almost entirely driven by two things: the condition of your existing substrate, and how complicated the deck is.
For context, comparable waterproof vinyl systems publish installed pricing in the $6.00–$14.50 per square foot range nationally. Coastal Delaware and Maryland tends to sit toward the upper half of that range and beyond labor costs on the Shore run above national averages, and coastal decks more often need substrate work due to moisture exposure.
What Lands You at the Low End ($9–$12/sq ft)
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Existing plywood substrate is solid, dry, and properly sloped
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Simple rectangular deck with minimal edges and transitions
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Ground-level or first-floor deck with easy access
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No stairs, drains, or complex wall details
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Larger deck area (per-square-foot cost drops as area increases, since setup time is fixed)
What Pushes You to the High End ($14–$18+/sq ft)
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Substrate needs partial or full replacement
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Multiple levels, stairs, or wraparound sections
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Second-story balcony, rooftop deck, or limited-access site
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Multiple drains, posts, door thresholds, or wall transitions
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Smaller deck (fixed costs spread over less area)
Tufdek Project Cost by Deck Size
Per-square-foot numbers are useful, but most people want to know what the actual project costs. Here’s what typical Delaware and Maryland projects run:
|
Deck Size |
Typical Installed Cost |
Common Project Type |
|---|---|---|
|
100 sq ft |
$1,200 – $2,000 |
Small balcony, entry landing |
|
200 sq ft |
$2,200 – $3,600 |
Standard rear deck, small roof deck |
|
300 sq ft |
$3,000 – $5,000 |
Mid-size deck, pool surround section |
|
400 sq ft |
$3,800 – $6,400 |
Large rear deck, second-story deck |
|
600 sq ft |
$5,400 – $9,600 |
Large wraparound or multi-level deck |
|
1,000 sq ft |
$9,000 – $16,000 |
Rooftop deck, large coastal property deck |
Notice the per-square-foot cost improves as size increases. That’s because a lot of the cost is fixed regardless of deck size mobilization, setup, edge detailing, and the trained labor time that goes into getting the waterproofing details right.
These ranges reflect typical installed pricing for the Delaware and Maryland coastal market. Your actual cost depends on your deck’s substrate condition, complexity, and access. Contact Vasco Property Services for a free, project-specific estimate.
What Is Tufdek, and Why Does It Get Priced Differently?
Those numbers make a lot more sense once you understand what you’re actually buying because Tufdek isn’t priced like other decking for a specific reason.
Tufdek isn’t decking in the way Azek or Trex are decking. Those are boards you replace your deck surface with new boards. Tufdek is a waterproof PVC vinyl membrane that gets installed over a solid substrate (usually plywood). It creates a completely sealed, walkable waterproof surface.
That distinction drives everything about how it’s priced. With composite boards, you’re mostly paying for material and installation labor. With Tufdek, you’re paying for a waterproofing system which means the condition of what’s underneath matters enormously, and the detail work around edges, drains, stairs, posts, and wall transitions is where much of the labor goes.
Tufdek describes itself as roofing, essentially the company treats a flat deck surface the same way it would treat a flat roof, and its products are tested to International Code Council and Canadian General Standards Board roofing standards. The waterproof warranty runs 15 years.
That’s useful context when you’re comparing quotes. If one quote is dramatically cheaper than another, the difference usually isn’t the membrane. It’s how much prep and detail work is included.
The Substrate Problem Nobody Warns You About
Here’s the part of Tufdek pricing that surprises the most homeowners, and it’s the reason two quotes for the “same” deck can differ by thousands.
Tufdek is installed over a prepared substrate. The membrane is only as good as what’s underneath it. If the existing plywood is soft, damaged, uneven, poorly sloped, or moisture-affected, that has to be corrected before the membrane goes down. There’s no way around it installing a waterproof surface over compromised plywood just seals the problem in.
And on the Eastern Shore, this is common. Coastal humidity, salt air, and decades of water working through an old deck surface mean substrate issues turn up in a large share of the resurfacing projects we look at. A deck that looks perfectly fine from above can have soft spots underneath that only show up once the old surface comes off.
What Substrate Repair Typically Adds
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Minor repairs (a few soft sheets of plywood replaced): $500 – $1,500
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Moderate repair (significant sections, some framing attention): $1,500 – $4,000
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Full substrate replacement: $6 – $12 per square foot on top of the membrane cost
This is worth asking about directly when you’re comparing quotes. A contractor who inspects the substrate before quoting and includes a repair allowance is giving you a more honest number than one who quotes the membrane alone and hits you with a change order once demo starts.
How to protect yourself: ask any contractor two questions “Have you assessed the substrate?” and “What happens to the price if you find rot once you open it up?” A straight answer to the second question tells you a lot about who you’re dealing with.
Why Coastal Delaware and Maryland Decks Cost More to Waterproof
A few things specific to this region genuinely affect Tufdek pricing here, and they don’t show up in national cost guides:
Salt air and humidity accelerate substrate deterioration. Decks in Bethany Beach, Fenwick Island, Ocean City, and the bayside communities around Selbyville take moisture exposure that inland decks don’t. That means a higher likelihood of substrate repair, and it’s the main reason coastal quotes trend higher.
Elevated and rooftop decks are more common here. Flood-zone construction means a lot of coastal homes have second-story decks, elevated decks, and rooftop living space. Those cost more to waterproof harder access, more staging, more perimeter and transition detail, and the waterproofing matters more because there’s living space underneath.
Deck-over-living-space is a different job entirely. If your deck sits above a room, a garage, or any interior space, you’re not just resurfacing a deck you’re waterproofing a roof that people walk on. The detailing standard is higher and so is the price. This is one of the most common Tufdek applications on the Shore and one of the most valuable, since a failure there means water in your house.
Cool-Step matters more here than most places. Some Tufdek Supreme series products include Cool-Step technology, which keeps the deck surface up to 50% cooler than standard PVC vinyl surfaces on hot days. On a south-facing coastal deck or a pool surround in July, that’s not a marketing feature, it’s the difference between a usable deck and one nobody stands on barefoot.
Tufdek vs. Composite Decking: How the Costs Actually Compare
A lot of homeowners are weighing Tufdek against composite boards like Azek or Wolf. They’re not really competing products, but here’s an honest cost comparison:
|
|
Tufdek (waterproof vinyl) |
Composite boards (Azek, Wolf, Trex) |
|---|---|---|
|
Installed cost |
$9 – $18/sq ft |
$10 – $27/sq ft |
|
Waterproof? |
Yes — fully sealed surface |
No — water passes between boards |
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Space below stays dry? |
Yes |
No |
|
Warranty |
15-year waterproof |
Varies, typically 25–50 yr material |
|
Best for |
Decks over living space, rooftop decks, balconies, pool surrounds |
Open ground-level decks, traditional deck look |
The decision usually isn’t about price, it’s about what’s underneath. If there’s living space, storage, a patio, or anything you want to keep dry below your deck, composite boards can’t do that job at any price. If it’s an open ground-level deck with nothing below, composite is a perfectly good choice and often the more natural look.
If you’re weighing composite options specifically, our deck cost comparison guide breaks down Azek, Wolf, wood, and vinyl pricing side by side.
What’s Included in a Proper Tufdek Quote
When you get an estimate, it should break out these components. If it’s a single lump-sum number with no detail, ask for the breakdown:
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Demo and removal of the existing deck surface
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Substrate inspection and repair (or a clearly stated allowance)
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Slope correction if drainage isn’t adequate
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Membrane material series and color selected
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Installation labor including all edge, drain, post, and wall transition detailing
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Trim and finishing fascia, drip edge, transitions
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Warranty documentation the 15-year waterproof warranty requires authorized installation
That detailing line is the one that separates a good install from a callback. A waterproof deck fails at its edges and penetrations, not in the middle of the field. Installers trained by the manufacturer are trained specifically on those details, which is why Tufdek’s warranty depends on authorized installation.
Frequently Asked Questions
How much does Tufdek cost per square foot?
Installed Tufdek typically runs $9–$18 per square foot on the Eastern Shore. Simple, solid-substrate ground-level decks land at the low end; complex, elevated, or repair-heavy decks land at the high end. The national range for comparable waterproof vinyl systems runs roughly $6–$14.50 per square foot, with coastal Delaware and Maryland trending toward the upper portion due to labor rates and moisture-related substrate work.
Why won’t Tufdek publish its prices?
Tufdek is manufactured and sold through authorized dealers who install it, and pricing depends heavily on substrate condition, deck complexity, and local labor, variables the manufacturer can’t assess remotely. That’s a reasonable position, but it does leave homeowners without a starting point, which is why we’ve published real ranges here.
Is Tufdek more expensive than composite decking?
Not necessarily. Tufdek runs $9–$18 per square foot installed; composite decking runs roughly $10–$27 per square foot installed. They’re in similar territory. The real difference is function, Tufdek waterproofs the space below, composite doesn’t.
How long does Tufdek last?
Tufdek carries a 15-year waterproof warranty, and properly installed systems commonly perform well beyond that. Lifespan depends heavily on installation quality at the edges and penetrations, and on the substrate being sound at the time of installation.
Can Tufdek go over my existing deck?
Often yes, if the substrate underneath is solid plywood in good condition and properly sloped. It can’t go over spaced deck boards a solid substrate is required. If your deck is currently open board decking, plywood would need to be installed first, which adds to the project cost.
Does Tufdek work on a rooftop deck or a deck over living space?
Yes, this is one of its strongest applications. Because it creates a fully sealed walkable surface, it’s used specifically for decks above living space, rooftop patios, and balconies where keeping the area below dry is the whole point. These installations require more detailing work and cost more, but the waterproofing is the entire reason to choose the system.
How long does a Tufdek installation take?
Most residential projects take a few days once work begins, though substrate repairs, weather, and deck complexity extend that. Membrane installation requires dry conditions, which on the Eastern Shore can mean scheduling around weather more than most regions.
Getting an Actual Number for Your Deck
Ranges get you oriented. They don’t tell you what your deck costs and anyone who quotes you a firm price without looking at your substrate is guessing.
What an honest estimate looks like: someone comes out, assesses the condition of what’s under your current surface, measures the real complexity of the deck including stairs and transitions, and gives you an itemized breakdown showing where the money goes and what happens if repairs turn up during demo.
Vasco Property Services is an authorized Tufdek installer serving Selbyville, Bethany Beach, Fenwick Island, Rehoboth Beach, Lewes, Millsboro, Ocean View, Dagsboro, South Bethany, Dewey Beach, Ocean City, Berlin, Ocean Pines, Salisbury, and communities across the Eastern Shore of Delaware and Maryland. We’ll assess your deck, tell you honestly what shape the substrate is in, and give you a real number, including whether Tufdek is even the right call for your situation.
Call (443) 880-8891 or request a free estimate online.
About the Author
The Vasco Property Services Team
Vasco Property Services LLC is a remodeling, renovation, and exterior improvement company based in Selbyville, Delaware, serving homeowners across Sussex County, DE and Worcester County, MD. The company is an authorized Tufdek waterproof vinyl decking installer and also handles decks and railings, porches, sunrooms, home additions, roofing, siding, windows, and kitchen and bathroom remodeling. Every article on this blog is written and reviewed by our contracting team, drawing on real projects and firsthand knowledge of coastal building conditions on the Delmarva Peninsula.