Calculator

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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    Terry · 05/23/2018
    I have a southern facing deck and live in Michigan. Which product offers the best coverage/longest lasting/UV Protection, etc. 100 or 1500 series?

    Was considering the Black Walnut or Dark Oak.
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      TWP Stains · 05/23/2018
      Either series would last the same so choose the color you like.
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    Tom · 05/22/2018
    I used TWP #1530 Natural a couple of years ago, it has held up well. However I would now like to stain with #1503 Dark Oak. Which prep kit should I use for the best results.
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    DMC from Michigan · 05/19/2018
    I have a recently stained pressure treated wood deck that was prepped and then stained with TWP 103 dark oak. There are a few shiny spots on the ends from too much stain and it has been 24 hours. Is there a way to fix this?
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    Roger · 05/16/2018
    I have a privacy fence that is about 5 months old. 225 feet long by 6 feet tall. How many gallons of would i need to coat both sides?
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      TWP Stains · 05/16/2018
      About 25 Gallons for the 2 coats applied wet on wet for 2500 sq. feet.
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    Lisa J. · 05/08/2018
    I am considering using your product to stain our 2-year-old cedar deck. It has not been previously stained, but has been thoroughly cleaned and prepped this spring. What is the difference between the 100 and 1500 series? Are both oil-based? Are the colors transparent or semi-transparent? We live in MN, and are looking for something that will weather as well as possible through our winters.
    • We will reply to your comment shortly
      TWP Stains · 05/08/2018
      Both are oil based with the main difference being the VOC compliancy for certain states. They are semi-transparent. Most use the 100 Series in MN.
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    Robert Hollingsworth · 05/05/2018
    We are thinking of using your product on our deck of 6years that has never had anything done to it,what do you recommend we do,
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    frontierjeanne · 04/23/2018
    I'm confused. I have a new, but well-seasoned,
    yellow cedar sided house. The wood for this house was seasoned by manufacturer. It then sat under roof on pallets for a year before being erected. It has now stood 8 months and we're ready to stain with recommended TWP and RAD. Here, however, it says Gemini for new, RAD for old, previously stained. Please clarify.
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      TWP Stains · 04/23/2018
      For wood that is unstained, you need the Gemini Restore Kit for the prep.
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    Adrienne · 04/09/2018
    I am using TWP on a deck that was constructed 1 year ago and did not receive any treatment. It has some small amount of mold staining. If I use the Gemini Restore Kit do I need to use the Restore-A-Deck Stripper?
    • We will reply to your comment shortly
      TWP Stains · 04/09/2018
      No need for the Stripper. Just prep with the Gemini Restore Kit.
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    Tony · 03/16/2018
    I have a recently installed western cedar fence. Will one coat suffice?
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    frank · 11/18/2017
    what kind of wood is used in the sample color pictures? I'm staining some pine and put a single medium coat of TWP redwood on a sample (see attached, stained vs not stained). I know it's semi-transparent but I was surprised at how translucent it ended up compared with the sample color picture. I waited a few days for it to dry thoroughly and put on a second coat to try to darken the color but it wasn't absorbed at all. 24 hours later it was still wet and it all came off when I wiped it down. Is there a way to get the redwood or rustic in a semi-solid instead of a semi-transparent?
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      TWP Stains · 11/19/2017
      Sorry but no. TWP only comes in semi-transparent colors.
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    Beverly Heilig · 09/21/2017
    Staining a 4 month old cedar fence. Which stain and how many gallons. 1 or 2 coats Should I powerwash or garden hose spray down.
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    TWP Stains · 09/17/2017
    Ellie:
    We have a second story deck. Is it recommended to stain the bottom as well?

    No need unless you want for aesthetic reasons.
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    Ellie · 09/17/2017
    We have a second story deck. Is it recommended to stain the bottom as well?
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    TWP Stains · 09/17/2017
    Faye:
    With the side boards and deck, I have 1,273 square feet - how much twp do I need?

    For two coats applied wet on wet, about 11-13 gallons.
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    Faye · 09/16/2017
    With the side boards and deck, I have 1,273 square feet - how much twp do I need?
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    TWP Stains · 09/08/2017
    paul dietz:
    The 100 series is available in my state. Is there any reason to use the 1500 rather than the 100 for a new constructed deck made with kiln dried pressure treated lumber?

    No. Use the 100 Series. See this about kiln dried wood:
    https://www.twpstainhelp.com/kdat-and-twp-wait-period-for-new-wood/
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    paul dietz · 09/07/2017
    The 100 series is available in my state. Is there any reason to use the 1500 rather than the 100 for a new constructed deck made with kiln dried pressure treated lumber?
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    TWP Stains · 08/31/2017
    Don Peterson:
    I have stripted my cedar siding and am ready to restain. I have about 1800 sq ft is the 100 2 coat. how to apply 2 coat so how much would I need

    Fro two coats you will need about 15-20 gallons for 1800 sq. feet. For info on application, see this:
    https://www.twpstainhelp.com/tips/application-instructions/how-to-apply-twp-100/
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    Don Peterson · 08/30/2017
    I have stripted my cedar siding and am ready to restain. I have about 1800 sq ft is the 100 2 coat. how to apply 2 coat so how much would I need
  • We will reply to your comment shortly
    TWP Stains · 08/23/2017
    Reenie Kavalar:
    Hello, Our horizontal deck surface is artificial decking, so we will only be using TWP 100 on the railing support posts and the top and bottom horizontal rails which between which run the vertical tubular metal pieces. The wood posts and rails are a lighter cedar which we stained in both the first and second years. The cedar looks pretty "thirsty." Do I really need to use the "Restore" or can I just use the TWP-100 with the Brightener added? It is a pain in the neck to treat these rails, so I don't really want to also apply the "Restore," if it not absolutely necessary. Please comment, asap, as I want to do this over the Labor Day weekend. Thanks much. Gary Kavalar

    Yes, you have to prep.

    TWP cannot be applied on top of a stain if a different brand. The old stain must be removed first with the prep. Use the Restore A Deck Stripper and Brightener Kit. If the old stain is TWP, then use the Gemini Restore Kit for the prep.

    FYI, Brightener is part of the prep and is not "added" into the TWP. Brightener alone is not proper prep.

    Hope this helps!