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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  • We will reply to your comment shortly
    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
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    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!
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    Reenie Kavalar · 08/22/2017
    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
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    TWP Stains · 07/30/2017
    Smew:
    Which color is closest to the natural/clear.

    Honeytone is the lightest tint.
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    Smew · 07/30/2017
    Which color is closest to the natural/clear.
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    TWP Stains · 06/26/2017
    J. Christianson:
    What do you mean by "wet on wet?"

    See this for tips: https://www.twpstainhelp.com/twp-stain-wet-on-wet-application/
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    J. Christianson · 06/25/2017
    What do you mean by "wet on wet?"
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    TWP Stains · 06/12/2017
    Brandon Drury:
    I'm trying to estimate stain needed for a four-board cedar fence, standing about 50" tall. The boards are 16' x 5" x 1", and we have 360' feet total.

    Further, we have 45 treated 5" round posts. Would we be able to stain those since they are treated?

    PS - I saw the question about the cedar fence below, and mine is definitely rough sawn (not smooth at all!) What has been your experience with using the pump sprayers for TWP stains?

    Total length x height x 2 for the fence sq. footage. Let us know what this equates to.

    You can pump spray on the first coat and back brush in the second coat.
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    Brandon Drury · 06/12/2017
    I'm trying to estimate stain needed for a four-board cedar fence, standing about 50" tall. The boards are 16' x 5" x 1", and we have 360' feet total.

    Further, we have 45 treated 5" round posts. Would we be able to stain those since they are treated?

    PS - I saw the question about the cedar fence below, and mine is definitely rough sawn (not smooth at all!) What has been your experience with using the pump sprayers for TWP stains?
  • We will reply to your comment shortly
    TWP Stains · 06/08/2017
    Chris Griffin:
    I had a new fence installed last week (Western Cedar) thats 55' long and 5' tall. I did not see any concrete guidelines but it sounds like maybe (sanding required?) power wash and stain after 3 months. Is this correct? Does new cedar tend to only require 1 or 2 coats?

    I think I will probably order 2 samples before purchasing the 1500 (required in my state) however I was wondering if you had pictures from customs posted anywhere showing the colors?

    Thanks!!

    You do not sand for prep but use the Gemini Restore Kit. New smooth wood needs to weather for 4+ months and prepped with the Gemini Restore Kit and 1 coat of stain. If the wood is rough sawn cut, you can stain now with 2 coats..
  • We will reply to your comment shortly
    Chris Griffin · 06/07/2017
    I had a new fence installed last week (Western Cedar) thats 55' long and 5' tall. I did not see any concrete guidelines but it sounds like maybe (sanding required?) power wash and stain after 3 months. Is this correct? Does new cedar tend to only require 1 or 2 coats?

    I think I will probably order 2 samples before purchasing the 1500 (required in my state) however I was wondering if you had pictures from customs posted anywhere showing the colors?

    Thanks!!
  • We will reply to your comment shortly
    TWP Stains · 06/05/2017
    ron anderson paintin:
    Can I get TWP 1500 in a semitransparent reddish tone? I’m doing a deck with an old redwood stain color on it.

    It comes in a Redwood color and a Rustic Color that are reddish: https://www.twpstain.com/twp-1500-series-5-gallon

    To use the TWP, you will need to prep by removing the prior stain.