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
    Ryan · 04/24/2020
    Hi. I have new 30'x18' deck that was built in July and November (half at a time) 2018 with treated lumber. I am looking to stain it for the first time. The deck has roughly 60' of railing, 4' tall.

    The product calculator states I need 2 kits of Restore a Deck, and 9 gallons of stain.

    Is this accurate? Should I apply one coat or two of stain?
    • We will reply to your comment shortly
      TWP Stains · 04/24/2020
      Yes, that is the correct amount for applying two coats wet on wet.
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        Ryan · 04/24/2020
        Thanks. I was advised before (on this site - I lost the thread) that only one coat is needed for new wood. I’m not sure which to go by.
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          TWP Stains · 04/24/2020
          Your wood is not new anymore when built in 2018.
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    Jess · 04/18/2020
    Hi. I stained using the 100 series 2 years ago. Now I am planning to re-coat and will treat with the Gemini restore kit first. Last time I sanded the wood to prep it and the deck took about 1 and 3/4ths of a gallon to stain. So do you think 1 gallon would be adequate now to re-coat it?

    Also, when I re-coat--should I do one coat or two?
    • We will reply to your comment shortly
      TWP Stains · 04/18/2020
      No, you will need the same as last time.
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        Jess · 04/20/2020
        Ok. Makes sense. For a re-coat (the original is in decent shape)...do you recommend 1 or 2 coats?
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    Marty Wallingford · 04/17/2020
    I have a new pressure treated deck that was built in November 2019. When should I start to think about staining it? Also, since it is new, what preparation do I need to do before staining? I like the look of the Rustic color.
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    Toni Mawhirter · 04/16/2020
    If I have a well-maintained redwood deck, previously Treated with Sikkens cetol, Is it a necessity to go beyond ordinary cleaning and pressure washing to be able to use the TWP 1500
    • We will reply to your comment shortly
      TWP Stains · 04/16/2020
      You will have to fully remove the Sikkens to be able to use the TWP.
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    Chris · 04/15/2020
    What is the square footage per single coat for a five gallon can of 1500
    • We will reply to your comment shortly
      TWP Stains · 04/16/2020
      It depends on the porosity, the age of the woo, and the type of wood. About 750-1000 per coat for a 5-gallon pail but that can vary.
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    Paul T. Burnett · 03/01/2020
    How many gallons on 1501 cedartone needed for 440 square ft.
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    JoElla · 11/18/2019
    Do you have a calculator to determine how many gallons will be needed to stain a house of the 100 series (120 Pecan). It was stained (when siding was put on new) 6 years ago with TWP Pecan and has held up great but wanting to stain again due to fading and weathering. I am assuming only one coat since this is second staining. Thanks!
    • We will reply to your comment shortly
      TWP Stains · 11/18/2019
      Just measure width x height for each side and add up for a total sq footage. Sq footage for 1 gallon and 1 coat is about 150-200 sq feet per gallon.
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    Andrew · 10/19/2019
    Hello TWP, I have about 175' of linear cedar fence that was done using 1x6 cedar milled boards (finished all sides). I believe the wood was kiln dried prior to sale. The fence was installed this summer, approximately 3 months ago.

    I would like to finish all sides of the fence (about 2000 SF), should I do 1 coat or 2 coats of TWP 1500?
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    Cathy · 10/08/2019
    I have just built a deck using treated lumber from Menards and want to protect it. I would chose an oil based semi-transparent product. I have read many helpful comments and instructions but I am still unsure about the timing of the application to "new" wood. It's fall here and the temperatures are falling. Suggestions please for product (1500 or ?) and when to apply. Thanks
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    Tary · 08/27/2019
    My deck is three years old, today it was power washed and the recommendation was to use your product. No previous stain or sealant was ever applied. I am in Michigan. May I have your suggestions on best way to proceed.
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    Roger Hultgren · 08/17/2019
    Sorry, forgot the deck size on last post. It is 10x10 with railing of 10' and 35" high.
    Roger
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    Roger Hultgren · 08/17/2019
    I have purchased an older home on Cape Cod MA about 1.2 miles from the ocean for our retirement. The deck and railing material is redwood. Ti was installed at least 10+ years ago. I have removed all paint and old stain and sanded with 120 grit paper. the wood is of good quality with no rot. I would like to stain with a redwood stain. what do you recomend, how many coats and which product is best for this area? Also, do you have any dealers in the Hyannis MA area?
    Thank you
    Roger
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    Gary · 08/13/2019
    7 ft. X 36 ft. porch ceiling with bare (cleaned) rough finish cedar T&G 1X6 boards.
    How much 101 cedartone natural stain is recommended for one coat? Also what applicator do you recommend for best result?
    Located near Seattle.
    • We will reply to your comment shortly
      TWP Stains · 08/13/2019
      2 Gallons. Apply with a stain pad applicator.
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    Sami · 07/23/2019
    Deck is 16 months old pressure treated pine(picture attached). We would like to stain it with honetone. Do I need to apply one coat or two coats of stain.? We will use the cleaner and brightener kit before staining. We are in New Jersey. Do we use the 1500 series?
    • We will reply to your comment shortly
      TWP Stains · 07/23/2019
      yes, use the TWP 1515 Honeytone. Two light coats applied wet on wet.
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    steve · 07/18/2019
    I have a big deck down by the river and I am going to stain after cleaning, what product should I use

    100 series or 1500?
  • We will reply to your comment shortly
    Diane · 06/27/2019
    Hi. Installing a new cedar deck and your product has come highly recommended. The lumberyard says the wood is kiln dried but still has mill glaze on it. TSP wash was suggested. Is the TSP okay to use? How soon after install can it be stained? Also, the calculator says I'd need 5 gallons for a 400 square foot deck. That isn't too much? If there is a lot left over how long will it be good for? Thanks for the help.
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    Eddie Eastwood · 06/15/2019
    I power washed and sealed my dock over the winter with Rain Guard, something I bought at Orchard Hardware before they closed. It's water based similar to Thompsons. Can I just powerwash to clean the dock or do I need strip and brighten before applying TWP?
    • We will reply to your comment shortly
      TWP Stains · 06/16/2019
      You will need to stip and brighten for prep.
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    Cindy Williams · 06/12/2019
    We have aluminum balusters so we only need to Stan the top and bottom of the railing and the posts. Our deck is 700 square feet and has one step . This is the first time so we are only doing one coat . Will 5 gallons be enough?
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      TWP Stains · 06/13/2019
      Does the 700 account for the railings, sides of the deck, and the stairs?
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    Ginny Freudenberger · 05/31/2019
    The "calculator is for deck measurement. Do you have calculator for house measurement.??
    • We will reply to your comment shortly
      TWP Stains · 05/31/2019
      Just do length x height for each side of the house.