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 · 07/05/2016
    Ed Danek:
    We washed the deck with TSP. Do we need to do anything else before using TWP 100?

    If you have an old deck stain coating, you will need to remove it before using the TWP.
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    Ed Danek · 07/03/2016
    We washed the deck with TSP. Do we need to do anything else before using TWP 100?
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    TWP Stains · 06/28/2016
    Alan Johnson:
    I am trying to figure out how much I need. I am trying to stain a fence. It is a cedar fence. I have 610 pickets. Each picket is 3.5" X 5ft. That amounts to about 1000 sqft. so I would get two 5 gallons. My question is if I wanted to cover both sides of the picket would I need 20 gallons??

    Yes if you have twice the amount to cover, you would need twice the stain.
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    Alan Johnson · 06/28/2016
    I am trying to figure out how much I need. I am trying to stain a fence. It is a cedar fence. I have 610 pickets. Each picket is 3.5" X 5ft. That amounts to about 1000 sqft. so I would get two 5 gallons. My question is if I wanted to cover both sides of the picket would I need 20 gallons??
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    TWP Stains · 06/27/2016
    Teresa Fusco:
    Hi, I just did the calculation for my deck. I have a small deck... About 400 sq feet. It says on the calculator summary that this would be about 4 gallons for two coats wet on wet. My deck was put in last fall and it is now seasoned wood that has never been stained. Do I put one coat or two...? And if I buy a 5 gallon instead of the 4 the calculator suggests for two coats... Would this extra gallon left over still be good to mix and use next year for ant touch ups on the steps or floor of my deck...? Or do you suggest a new can at time of reapplication?

    Apply two very light coats this year. See this about shelf life:

    http://www.twpstainhelp.com/shelf-life-of-twp/
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    Teresa Fusco · 06/27/2016
    What is the difference between the Gemini Restore a deck and the Restore a deck company restore a deck product? It has the same name but different company... I'm confused... Are they the same product or not?
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    Teresa Fusco · 06/27/2016
    Hi, I just did the calculation for my deck. I have a small deck... About 400 sq feet. It says on the calculator summary that this would be about 4 gallons for two coats wet on wet. My deck was put in last fall and it is now seasoned wood that has never been stained. Do I put one coat or two...? And if I buy a 5 gallon instead of the 4 the calculator suggests for two coats... Would this extra gallon left over still be good to mix and use next year for ant touch ups on the steps or floor of my deck...? Or do you suggest a new can at time of reapplication?
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    Bob Taft · 06/19/2016
    Wow, that was quick thanks, now where do I find a TWP-100 dealer in Syracuse, NY. I can't find a search box, on your site, to locate local distributors/vendors in my area
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    TWP Stains · 06/10/2016
    James Plath:
    Hello....I need to stain a new cedar fence using your 1500 Series stain that is approximately 120 feet long by 6 feet high. It will be stained on both sides. How many gallons of stain would you recommend I purchase?

    Thank you!

    Sounds like you have roughly 1440 sq. feet total for both sides. About 15 gallons will cover for two coats.
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    James Plath · 06/10/2016
    Hello....I need to stain a new cedar fence using your 1500 Series stain that is approximately 120 feet long by 6 feet high. It will be stained on both sides. How many gallons of stain would you recommend I purchase?

    Thank you!
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    TWP Stains · 06/09/2016
    Lonnie Bartel:
    Building a brand new cedar fence that is 6' tall and total length of 300' long.How much TWP 1500 would I need to treat both sides?

    Thanks

    Total sq. footage is about 3600. For two coats applied "wet on wet" you would need about 30-35 gallons. If you want to apply just 1 coat, you would need roughly 20-25 gallons.
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    Lonnie Bartel · 06/08/2016
    Building a brand new cedar fence that is 6' tall and total length of 300' long.How much TWP 1500 would I need to treat both sides?

    Thanks
  • We will reply to your comment shortly
    TWP Stains · 06/07/2016
    MaryC:
    I have 2400 Sq feet of siding to treat. How much TWP 100 do I need?

    For two coats applied wet on wet, about 20-25 gallons.
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    MaryC · 06/07/2016
    I have 2400 Sq feet of siding to treat. How much TWP 100 do I need?
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    TWP Stains · 06/03/2016
    David Latch:
    I do not mean to insult anyone, but what is the difference between Gemini RAD and store bought cleaner/brightner from companies like Behr and Olympic?

    Their products are not as effective and are bleached based. Ours are biodegradable, prep better for the TWP, and concentrates,
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    David Latch · 06/03/2016
    I do not mean to insult anyone, but what is the difference between Gemini RAD and store bought cleaner/brightner from companies like Behr and Olympic?
  • We will reply to your comment shortly
    TWP Stains · 06/03/2016
    Shane ogle:
    I have 3400 square feet of wood fence/deck to be covered. How many gallons of twp 1500 do I need for 1 coat?

    20-25 Gallons.
  • We will reply to your comment shortly
    Shane ogle · 06/03/2016
    I have 3400 square feet of wood fence/deck to be covered. How many gallons of twp 1500 do I need for 1 coat?
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    TWP Stains · 06/02/2016
    musky:
    I just pressure washed my deck which had that HORRIBLE Rustoleum Restore on it!!Some of the boards are greyish while others are lighter. The deck is in full sun most of the day so I need a stain to withstand the sun, won't chip,peel or fade AND easy to apply. I like the 1530 series of the "Natural Carmel/Golden tone.

    You must remove 100% of the Rustoleum if you want to use a penetrating semi-transparent stain like the TWP. If applied properly and prepped properly, it will not peel or chip. Fades through the years and can be cleaned and reapplied as needed.
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    musky · 06/02/2016
    I just pressure washed my deck which had that HORRIBLE Rustoleum Restore on it!!Some of the boards are greyish while others are lighter. The deck is in full sun most of the day so I need a stain to withstand the sun, won't chip,peel or fade AND easy to apply. I like the 1530 series of the "Natural Carmel/Golden tone.