Calculator

These calculations will help you determine the square footage for the proper amount of stain and prepping supplies needed to refinish your deck or fence using TWP 100 or TWP 1500 Series.

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

Prepping Options

  • Gemini Restore Kit. This will be used for new, gray, dirty decks and for applying TWP over an intact older coating of TWP.
  • 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.

Deck Sq. Footage

Flooring Length x width =?

Railing Length x height =?

Steps Width x Depth x #of Steps =?

Add up all 3 for the Total Sq. footage.

Fence Sq. Footage

Length x height =?

Multiply x 2 for both sides = Total Sq. Footage

If you have questions, please ask below.

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  • We will reply to your comment shortly
    Rob Neumann · 04/05/2016
    Can we use this product on untreated wood siding? I love it on my cedar shakes.
  • We will reply to your comment shortly
    TWP Stains · 04/04/2016
    Lyn Dukes:
    I have 800 sq ft deck with 125 running feet of railing. Deck is new with 8-10 month drying. How many gallons of series 100 do I need? I read I should put one coat first, wait several months to put second coat. Is this correct?

    Hello, please add your dimensions into the calculator above to get the amount needed. Only one coat on new wood. See here for more info on this:

    http://www.twpstainhelp.com/prepping-new-wood-for-twp-stains/
  • We will reply to your comment shortly
    Lyn Dukes · 04/04/2016
    I have 800 sq ft deck with 125 running feet of railing. Deck is new with 8-10 month drying. How many gallons of series 100 do I need? I read I should put one coat first, wait several months to put second coat. Is this correct?
  • We will reply to your comment shortly
    TWP Stains · 04/03/2016
    Christy Gaddis:
    I am staining an covered portion of my deck that was constructed with untreated wood. I would like this to have a little shine to the finish. Can I apply polyurethane to the top? If not do you have any suggestions?

    You cannot apply a polyurethane or any shiny coating over top of the TWP.
  • We will reply to your comment shortly
    Christy Gaddis · 04/02/2016
    I am staining an covered portion of my deck that was constructed with untreated wood. I would like this to have a little shine to the finish. Can I apply polyurethane to the top? If not do you have any suggestions?
  • We will reply to your comment shortly
    TWP Stains · 03/16/2016
    Ken Shaffer:
    When you say apply wet on wet, exactly what do you mean. If it is still wet when applying a 2nd coat, wont footprints affect the finish?

    Thanks

    Please see this article:

    http://www.twpstainhelp.com/twp-stain-wet-on-wet-application/
  • We will reply to your comment shortly
    Ken Shaffer · 03/16/2016
    When you say apply wet on wet, exactly what do you mean. If it is still wet when applying a 2nd coat, wont footprints affect the finish?

    Thanks
  • We will reply to your comment shortly
    TWP Stains · 03/13/2016
    Dheer Kumar:
    I have a new 500 sq ft Deck. What do I need to prepare before applying the stain

    Please see this about new wood:

    http://www.twpstainhelp.com/prepping-new-wood-for-twp-stains/
  • We will reply to your comment shortly
    Dheer Kumar · 03/12/2016
    I have a new 500 sq ft Deck. What do I need to prepare before applying the stain
  • We will reply to your comment shortly
    TWP Stains · 03/08/2016
    Bob Blades:
    I only see twp 101 in a sample not 100. I am looking for the most natural look for a cedar deck

    The 100 Clear is on the sample options. Clear will not provide UV protection/graying of the wood.
  • We will reply to your comment shortly
    Bob Blades · 03/08/2016
    I only see twp 101 in a sample not 100. I am looking for the most natural look for a cedar deck
  • We will reply to your comment shortly
    TWP Stains · 02/28/2016
    Ralph Brescia:
    For my deck I need a full kit and one 1/4 kit. For color uniformity, will both kits fit in one 5 gallon bucket when fully mixed with all parts? If not how do I mix the two kits together?

    Yes you will be able to mix both in the same bucket.
  • We will reply to your comment shortly
    Ralph Brescia · 02/28/2016
    For my deck I need a full kit and one 1/4 kit. For color uniformity, will both kits fit in one 5 gallon bucket when fully mixed with all parts? If not how do I mix the two kits together?
  • We will reply to your comment shortly
    TWP Stains · 02/22/2016
    RSS:
    I live in Minnesota. Installed a 1,200 sq ft PT pine fence mid last summer. Plan to stain (dark Oak)this spring. What prep should I do? Is TWP 100 allowed in MN? If yes, should I use 100 or 1500 series? I have a Graco airless sprayer. Is that overkill or should I use a pump sprayer? Back brushing recommended? Thanks !

    Prep first with the Gemini Restore Kit. Stain with two light coats of the TWP 100 Series. Lightly spray on the first coat then back brush or paid the second coat. Grace or pump should work.
  • We will reply to your comment shortly
    RSS · 02/22/2016
    I live in Minnesota. Installed a 1,200 sq ft PT pine fence mid last summer. Plan to stain (dark Oak)this spring. What prep should I do? Is TWP 100 allowed in MN? If yes, should I use 100 or 1500 series? I have a Graco airless sprayer. Is that overkill or should I use a pump sprayer? Back brushing recommended? Thanks !
  • We will reply to your comment shortly
    TWP Stains · 02/09/2016
    Brian M:
    Regarding the 5 gallon and the 1 gallon as I need somewhere between 5-7 gallon of stain for my deck. Do you recommend that I mix all of it in some massive container or are the colors (semi-transparent) pretty close when using the single gallon after the 5 gallon?

    It is always best to mix together but in general, the colors will be exactly the same.
  • We will reply to your comment shortly
    Brian M · 02/09/2016
    Regarding the 5 gallon and the 1 gallon as I need somewhere between 5-7 gallon of stain for my deck. Do you recommend that I mix all of it in some massive container or are the colors (semi-transparent) pretty close when using the single gallon after the 5 gallon?
  • We will reply to your comment shortly
    TWP Stains · 01/04/2016
    Phyllis Lazaro:
    Only want stain - don't need stripper or restorer. Can I get just stain? Is there anywhere in Dallas Ft Worth area that I can get this without shipping?

    Of course you can buy just the stain. See here:
    http://www.twpstain.com/twp-100-series
    We are an online dealer.
  • We will reply to your comment shortly
    Phyllis Lazaro · 01/04/2016
    Only want stain - don't need stripper or restorer. Can I get just stain? Is there anywhere in Dallas Ft Worth area that I can get this without shipping?
  • We will reply to your comment shortly
    TWP Stains · 11/19/2015
    cecil moore:
    we have a cedar deck with @ 300 sq feet floor/steps + railings seriously neglected no stain or finish left, and has algae and mold. Should we use gemini or stripper. Some sun mostly shade, what type stain? Older kinda lazy homeowners. :-*

    Use the Gemini Restore Kit for prep. You can use either the 100 or 1500 series.