Buy the oil or modified-oil semi-transparent. At $40 to $55 a gallon it gets tinted on the spot at any Sherwin-Williams store, next to the deck wash and brightener you need for prep. It soaks in instead of building a skin, so it fades rather than peels and the recoat is a wash-and-reapply. Do not put the solid color on a horizontal deck floor. And plan to recoat the floor every one to two years in full sun.
Which SuperDeck Are You Buying?
SuperDeck is four products wearing one name, and the opacity matters more than the color. Most of what goes wrong is people picking the wrong opacity for a horizontal surface, not the stain failing on its own.
Spec Sheet
- COVERAGE
- Semi-transparent 250-350 sq ft/gal · solid 150-250 sq ft/gal
- OPACITY OPTIONS
- Transparent, semi-transparent, semi-solid, solid
- TOUCH DRY
- 1-2 hr
- RECOAT
- 4 hr waterborne · overnight oil
- CURE BEFORE TRAFFIC
- 24-72 hr depending on formula and weather
- VOC
- Waterborne solid 50 g/L · modified oil 250 g/L · oil semi-transparent 550 g/L (state-dependent)
- PRIMER
- Self-priming on clean bare wood; pair with SuperDeck Deck Wash and brightener for prep
- SURFACES
- Exterior wood decks, railings, fences, siding
- WOOD MOISTURE BEFORE STAINING
- Under 15 percent
- SIZES
- Gallon, 5-gallon
- PRICE
- $40-55 / gal street, less on a spring sale
Dry Times in the Real World
Touch dry runs 1 to 2 hours. Recoat is 4 hours on the waterborne and overnight on the oil, and the wait before you put furniture and feet back on the boards is 24 to 72 hours depending on formula and weather. The number that actually decides the job is the one before you open the can: the wood has to be under 15 percent moisture. A deck that got washed Saturday morning is not ready Saturday afternoon. Stain wet wood and it rejects the finish, and you will not find out until it peels next spring. Work out of direct midday sun, stain full boards end to end, and keep a wet edge the whole run.
When It Goes Wrong — and How to Fix It
Solid color peeling off the deck floor
Why it happens: Solid and semi-solid build a film. A film on a flat, walked-on surface that holds standing water and goes through freeze-thaw lifts, sometimes inside a year. I have seen it come off in sheets on a deck that was prepped by the book. The product is not defective; it is the wrong tool for a floor.
The fix: Strip it and go back with the oil or modified-oil semi-transparent, which penetrates instead of skinning. Keep solid and semi-solid on railings and vertical fence boards where water sheds off, and you will never meet this failure.
Lap marks and brush drag on the waterborne
Why it happens: The waterborne formulas sit on the surface more than they soak in. Stop in the middle of a board, or work in direct sun, and the leading edge flashes off before you lap back into it.
The fix: Stain full boards end to end and never stop mid-board. Keep a wet edge, stay out of midday sun, and work two or three boards at a time. If you have the choice and your state allows it, the oil is far more forgiving here.
Fresh stain peeling within months on a properly stained deck
Why it happens: Almost always the surface under it. Stain bonds to wood, not to old stain, mill glaze, mildew, or a leftover film. Damp wood does the same thing — the stain never gets into the grain.
The fix: Strip or wash off every bit of old finish, clean with SuperDeck Deck Wash or a sodium-percarbonate cleaner, brighten to neutralize the cleaner and open the grain, then let it dry to under 15 percent moisture before a brush touches it.
Walking paths worn bare while the rest of the deck still looks fine
Why it happens: A horizontal floor in full sun eats UV and foot traffic faster than any railing. The semi-transparent holds roughly 80 percent of its color at two years, but the traffic lanes give up well before the field does.
The fix: Recoat the floor on a one-to-two-year rhythm rather than waiting for the whole deck to look tired. Because the semi-transparent fades instead of peeling, a recoat is a wash and reapply, not a strip. If you want longer between coats, a dedicated penetrating oil is the product, not a different SuperDeck.
Application Settings That Work
- BRUSH
- Stain full boards end to end, wet edge maintained, out of direct midday sun. Never stop in the middle of a board — that is where the lap mark lands. The oil flows well; the waterborne drags and punishes any pause.
- PRIMER
- No separate primer. It is self-priming on clean bare wood, and the prep is the whole job: strip old finish, wash with SuperDeck Deck Wash or a percarbonate cleaner, brighten, then dry to under 15 percent moisture.
SuperDeck vs TWP 100 vs Olympic Elite
The three cans that come up on any deck job. They are not the same class of product, and the deciding factor is usually how far you are willing to drive and how many years you want between coats.
| SuperDeck Semi-Transparent | TWP 100 Series | Olympic Elite | |
|---|---|---|---|
| Street price per gallon | $40-55 | $55-70 | $35-45 |
| How you buy it | Tinted on the spot at any Sherwin-Williams store | Order online and wait | Off the shelf at Lowe's |
| Life on a deck floor in full sun | 1-2 years before a recoat | 2-3 years underfoot | Same ballpark as SuperDeck on railings and fences; no better on the floor |
| How it wears | Penetrates and fades; no strip needed to recoat | Penetrates deep; recoats without stripping | Semi-transparent, comparable wear pattern |
| Prep system in the same store | Yes — SuperDeck Deck Wash and brightener | No, you assemble it yourself | Big-box cleaners, mix and match |
| Where it wins | A Saturday project you can start today, with matching prep products | A horizontal deck that takes real traffic and you want the longest coat life | Price, when you are already standing in the Lowe's stain aisle |
If the deck is the whole point and you want the most time between coats, order TWP 100 and accept the higher price and the wait. If you are price-sensitive and already at Lowe's, Olympic Elite is a fair swap on railings and fences. SuperDeck wins on the thing that decides most weekends: there is a store near you, they tint it now, and they sell you the wash and brightener in the same trip. Just buy the semi-transparent, not the solid.
What It's Good At
- +Availability — a Sherwin-Williams store tints it on the spot and stocks the matching wash and brightener
- +The semi-transparent wears honestly: it fades and thins instead of peeling
- +Recoats without stripping, so maintenance is a wash-and-reapply weekend
- +Cool Feel pigment on the waterborne solid, rated up to 20 degrees F cooler surface in 20 colors
- +The waterborne solid takes damp (not wet) wood, which buys a window after a rain
- +One prep system from one store, so no guessing whether a third-party cleaner leaves residue
What It's Not Good At
- −Solid and semi-solid on horizontal deck boards — the film peels, sometimes inside a year
- −Time between coats: 1-2 years underfoot in full sun where TWP 100 pulls 2-3
- −Waterborne workability — it drags and flashes lap marks if you stop mid-board
- −Availability of the best formula: the 550 g/L oil is regulated out of California and parts of the Northeast
- −Old, thirsty boards, which drink well past the 250-350 sq ft/gal on the label
- −Solid-color touch-ups, which flash at the patch
Honest Alternatives
Big-box availability at Lowe's, a bit less per gallon, and a semi-transparent that performs in the same ballpark on railings and fences. It is not better than SuperDeck on a deck floor, but it is a fair swap if you are price-sensitive.
A penetrating oil deck pros lean on for floors. It soaks deep, holds 2-3 years underfoot in full sun, and recoats without stripping. You order it online and pay more, but on a horizontal deck that takes real traffic it outlasts SuperDeck.
The pick for shaded, damp, slow-drying decks. Its drying-oil and non-drying-oil blend cures even where airflow is poor and other stains stay tacky. Niche and mail-order, but the answer for a north-facing deck under tree cover.
SuperDeck Questions, Answered
Is SuperDeck worth it?
In the oil or modified-oil semi-transparent, yes. At $40 to $55 a gallon it is tinted on the spot at any Sherwin-Williams store alongside the matching deck wash and brightener, and because it soaks in rather than building a film, the recoat is a wash-and-reapply instead of a weekend of scraping. It is not worth it as a solid color on a horizontal deck floor, and it is not the longest-lasting floor stain.
How long does SuperDeck last on a deck floor?
On a horizontal floor in full sun, plan to recoat the semi-transparent every one to two years. The wood eats UV and foot traffic faster than railings do. Vertical surfaces like railings and fences hold three to four years. The solid color looks great in year one, then risks peeling on the flat.
Which SuperDeck formula should I buy?
For a deck floor, the oil-based or modified-oil semi-transparent. It soaks in, so when it wears it fades instead of peeling and a recoat does not need a full strip. Use the solid color only on railings, fences, and old gray wood you want to hide. Skip the solid on horizontal boards unless you enjoy scraping.
Can I put solid SuperDeck on my deck floor?
Do not. Solid and semi-solid build a film, and film on a flat, walked-on surface that holds standing water and freezes peels, sometimes inside a year. I have seen it lift in sheets off a deck that was prepped by the book. Keep solid on railings and vertical fence boards.
Does SuperDeck need a primer?
No separate primer — it is self-priming on clean bare wood. The prep is the real work: strip the old finish, wash with SuperDeck Deck Wash or a percarbonate cleaner, brighten, and let the wood dry to under 15 percent moisture. Stain over dirt or a leftover film and it peels no matter what the can promises.
Is the waterborne or the oil version better?
The oil penetrates and the waterborne mostly sits on top. On a deck floor the oil wins; it wears softer and recoats easier. The waterborne is lower VOC and dries fast, but it shows brush marks and lap marks and cannot take the foot traffic the oil shrugs off. Buy oil where it is still legal in your state.
Why can I not buy the oil semi-transparent in my state?
VOC rules. The oil semi-transparent runs 550 g/L and is banned or restricted in California and several Northeast states. The modified oil at 250 g/L is the penetrating option there, and the 50 g/L waterborne is the only choice in the strictest counties — and it is the weakest on horizontal wear. Check what your state allows before you settle on a formula.
How do I avoid lap marks with SuperDeck?
Stain full boards end to end and never stop in the middle of a board. Keep a wet edge, stay out of direct midday sun, and work a few boards at a time. The waterborne is the formula that punishes a pause; the oil is much more forgiving.
What is the story with the SuperDeck lawsuits?
They track the film-building side of the line, not the penetrating stain. A 2018 class action in Ohio federal court covered Duckback Deck & Dock Elastomeric, Duckback Deck and Dock Solid, and SuperDeck Deck and Dock Coating, with owners alleging the coating peeled, cracked, and bubbled. A 2019 suit followed on SuperDeck sealers and stains generally. It fits the pattern in this review: thick film coatings on horizontal boards fail, penetrating stains do not. If a store pushes the thick Deck & Dock coating for a floor, walk away.
How dry does the deck need to be before staining?
Under 15 percent moisture. That is the step people skip, and it is the biggest difference between a deck that lasts two years and one that fails in eight months. A deck washed in the morning is not ready that afternoon. Give it days, not hours, and check before you open the can.
Ask a Question
Mid-project with SuperDeck? Stuck between two cans?
Ask Mark below — every question gets a real reply, usually within a day. Stained a deck with SuperDeck? Tell us which opacity you used, how the floor looked at the two-year mark, and whether the prep held.