This calculator will help you determine the proper amount of stain and prepping supplies needed to refinish your deck using TWP 100 or TWP 1500 Series.

 

This calculator is intended to provide you with an approximate estimate only. Material requirements may vary according to application method, surface condition and weather conditions.

 

You will get two prepping results. You need one, not both options:

  • First will offer the Gemini Restore Kit. This will be used for new, gray, dirty decks and for applying TWP over an intact older coating of TWP.
  • Second is the Restore-A-Deck Stripper and Restore-A-Deck Brightener. This is used for removing old coatings of stain. Use this if you are switching from a different brand to TWP or if you have a neglected coating of TWP that has failed unevenly.

 

If you have questions as to which to use, please ask below.

 

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    TWP Stains · 06/19/2015
    Denise Cacciatore:
    my deck deminsions are:
    683 Squqre feet
    119 ft railing
    17 post
    2 wooden flowerboxes

    how much should I purchase?

    Please use calculator above for floor, steps, and railings then add and round up for the flower boxes and posts.
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    Denise Cacciatore · 06/19/2015
    my deck deminsions are:
    683 Squqre feet
    119 ft railing
    17 post
    2 wooden flowerboxes

    how much should I purchase?
  • We will reply to your comment shortly
    TWP Stains · 06/18/2015
    Teri Avery:
    I am staining a pergola; how much stain do I need? Dimensions are: 13' x 13'

    Hello, we would need a total amount of wood in a sq. footage to give a proper answer. It could be anywhere for 2-5 gallons depending on how much wood you have.
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    Teri Avery · 06/17/2015
    I am staining a pergola; how much stain do I need? Dimensions are: 13' x 13'
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    TWP Stains · 06/16/2015
    Sylvia Murphy:
    My covered front porch measures 33ft 2.5 inches for length and 7ft 9 inches for width. Rails are painted white so don't need to calculate them for amount of stain. First of all, How much stain do I need to buy ? We had TWP on the porch for 8 years in TWP101 cedar tone natural and now it needs a new coat. Should we put on 2 coats ? If so, how many gallons are needed?Is this color still available. Can't find your product locally.

    Apply 2 coats of the TWP 101 wet on wet. You will need 3 gallons for this. We have this on our site here:
    http://www.twpstain.com/twp-100-series-1-gallon
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    Sylvia Murphy · 06/16/2015
    My covered front porch measures 33ft 2.5 inches for length and 7ft 9 inches for width. Rails are painted white so don't need to calculate them for amount of stain. First of all, How much stain do I need to buy ? We had TWP on the porch for 8 years in TWP101 cedar tone natural and now it needs a new coat. Should we put on 2 coats ? If so, how many gallons are needed?Is this color still available. Can't find your product locally.
  • We will reply to your comment shortly
    Sylvia Murphy · 06/16/2015
    We just need TWP for the floor of the porch. Railings are painted white. We used your product almost 8 years ago and it is now ready for a new coat. Can't find it locally for sale. Our old gallon can says TWP101 Cedartone Natural. Is that still available and how much do I need for the size
    listed below?
    Our covered front porch length is 33 feet and 2.5 inches
    Our covered front porch width is 7feet and 9 inches
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    TWP Stains · 06/12/2015
    Gloria:
    Wondering what the best color is for tigerwood deck. Would like as little color additive as possible but still have UV protection.

    Look at the Honeytone
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    Gloria · 06/11/2015
    Wondering what the best color is for tigerwood deck. Would like as little color additive as possible but still have UV protection.
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    TWP Stains · 06/10/2015
    Gerald Woodson:
    I have a dock (not deck) that I am refinishing. I took apart an old pine wood deck, flipped the 5 1/2 inch X 4 feet boards, had them planed and am now ready to stain/seal. I live on a small no wake lake in Central Wisconsin. What is your recommendation?

    Use the 100 Series.
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    Gerald Woodson · 06/10/2015
    I have a dock (not deck) that I am refinishing. I took apart an old pine wood deck, flipped the 5 1/2 inch X 4 feet boards, had them planed and am now ready to stain/seal. I live on a small no wake lake in Central Wisconsin. What is your recommendation?
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    TWP Stains · 06/09/2015
    Erick:
    Last year in June I applied TWP100 redwood stain and my wife doesn't like the color. This was the 1st coat on my 1 year old deck. It's time to clean and stain again and she wants to change to a darker brown color. Any ideas?

    Use the Restore A Deck stripper and pressure washing for the prep. Brighten the wood when done. Stain with the Dark Oak.
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    Erick · 06/09/2015
    Last year in June I applied TWP100 redwood stain and my wife doesn't like the color. This was the 1st coat on my 1 year old deck. It's time to clean and stain again and she wants to change to a darker brown color. Any ideas?
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    TWP Stains · 06/07/2015
    Ron Landers:
    I have completely sanded the old stain on my covered screen porch cedar deck built in 2008. Do I need to use both bottles from the Gemini Restore kit? Also I don't have a sprayer, will I still get good results.

    Yes you should both. You can get a pump sprayer for $30 at a local hardware store. Much easier then scrubbing it on.
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    Ron Landers · 06/07/2015
    I have completely sanded the old stain on my covered screen porch cedar deck built in 2008. Do I need to use both bottles from the Gemini Restore kit? Also I don't have a sprayer, will I still get good results.
  • We will reply to your comment shortly
    TWP Stains · 06/07/2015
    Al Turnauer:
    i had a new cedar deck in 2013. I made the mistake of putting Sherwin Williams Deckscape sealer/stain on it after waiting 12 months and following powerwashing. The SW product started peeling off during the winter following its application in August 2014. So, the deck was just powerwashed again this week to remove the SW stain/sealer and most, but not all the stain came off. The only places it remains adhered to the deck is on the knots in the cedar.
    Question is, should I use a wood prep product before applying your oil based stain/sealer? If so, which one? How long should I wait to apply sealer/stain after wood prep, if needed? Is TWP 1500 the best product for cedar deck stain/sealing and if yes, should I do 2 coats or 1 coat? And, lastly, how often (1 year, 2 years, etc) will I need to re-apply the TWP product to maximize protection of the deck?

    Yes try the Gemini Restore Kit for the prep. Apply 2 light coats of the TWP 1500 but apply wet on wet method. Reapply every 2 years.
  • We will reply to your comment shortly
    Al Turnauer · 06/05/2015
    i had a new cedar deck in 2013. I made the mistake of putting Sherwin Williams Deckscape sealer/stain on it after waiting 12 months and following powerwashing. The SW product started peeling off during the winter following its application in August 2014. So, the deck was just powerwashed again this week to remove the SW stain/sealer and most, but not all the stain came off. The only places it remains adhered to the deck is on the knots in the cedar.
    Question is, should I use a wood prep product before applying your oil based stain/sealer? If so, which one? How long should I wait to apply sealer/stain after wood prep, if needed? Is TWP 1500 the best product for cedar deck stain/sealing and if yes, should I do 2 coats or 1 coat? And, lastly, how often (1 year, 2 years, etc) will I need to re-apply the TWP product to maximize protection of the deck?
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    TWP Stains · 06/04/2015
    Dale Gjerning:
    I have a wood deck that has not been treated for several years and is in need of a good treatment. What type of Restore application do you recommend for cleaning the surface? I am not sure what type of wood was used for the deck.

    I do plan to use the TWP Dark Oak stain (1503) on the deck.

    Thank you.

    Does it have an old stain or just dirty?
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    Dale Gjerning · 06/04/2015
    I have a wood deck that has not been treated for several years and is in need of a good treatment. What type of Restore application do you recommend for cleaning the surface? I am not sure what type of wood was used for the deck.

    I do plan to use the TWP Dark Oak stain (1503) on the deck.

    Thank you.
  • We will reply to your comment shortly
    TWP Stains · 06/03/2015
    Mr. X:
    I have a deck that was stained with a cedar oil based stain many years ago. I ordered the Gemini kit along with the TWP 100 cape cod gray. Can I use the Gemini kit or should I return it for the Restore-A Decj stripper and brightener? Thanks

    The Gemini Kit is not a stripper but it "may" remove a very old semi-transparent oil based stain if it has been many years. Hard to say yes or no if it will do the proper prep.