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
    Lovell Duggan · 05/20/2016
    Can this be used on a newly installed cedar fence? We live in New Orleans, LA.

    Thanks, Lovell Duggan
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    TWP Stains · 05/19/2016
    Dan Roeder:
    I have approx 373 Ft of cedar hand railing with 38 inch high posts.I have black metal spindles. Decking is composite. Hail removed previous stain. So I will need to strip old finish. How much stripper will be needed. And how much of the TWP 100 stain will I need. Thanks.

    Hello, what is your total sq. footage of wood? Need to add the railings and the posts together.
  • We will reply to your comment shortly
    Dan Roeder · 05/19/2016
    I have approx 373 Ft of cedar hand railing with 38 inch high posts.I have black metal spindles. Decking is composite. Hail removed previous stain. So I will need to strip old finish. How much stripper will be needed. And how much of the TWP 100 stain will I need. Thanks.
  • We will reply to your comment shortly
    TWP Stains · 05/15/2016
    Paul Murphy:
    Hi

    I have 352 sqft of pine shed outside walls

    3 years ago did full strip, restore and 2 coats of wet on wet of 1500, used about 5 gallons

    Want to do a maintenance coat now, restore and if it can absorb 2 coats of wet on wet

    Should I expect to use the same amount of product as 3 years ago?

    Yes you will need a full reapplication after 3 years. Prep with the Gemini Restore kit as well.
  • We will reply to your comment shortly
    Paul Murphy · 05/15/2016
    Hi

    I have 352 sqft of pine shed outside walls

    3 years ago did full strip, restore and 2 coats of wet on wet of 1500, used about 5 gallons

    Want to do a maintenance coat now, restore and if it can absorb 2 coats of wet on wet

    Should I expect to use the same amount of product as 3 years ago?
  • We will reply to your comment shortly
    TWP Stains · 05/15/2016
    Cheryl LaPointe:
    Hi! Looking at purchasing the 1500 line for s new construction log home. We need stain for approximately 1500 square feet. How much stain do you recommend purchasing? Thanks!

    1500 sq. feet of siding? About 10-15 gallons for two coats applied wet on wet.
  • We will reply to your comment shortly
    Cheryl LaPointe · 05/15/2016
    Hi! Looking at purchasing the 1500 line for s new construction log home. We need stain for approximately 1500 square feet. How much stain do you recommend purchasing? Thanks!
  • We will reply to your comment shortly
    TWP Stains · 05/11/2016
    Jerry Schramek:
    I live in Ontario and will be going to buffalo NY, where can I purchase your TWP 1500 series stain and your restore a deck products

    We are an online dealer and personally do not have dealers in Buffalo, NY.
  • We will reply to your comment shortly
    Jerry Schramek · 05/11/2016
    I live in Ontario and will be going to buffalo NY, where can I purchase your TWP 1500 series stain and your restore a deck products
  • We will reply to your comment shortly
    TWP Stains · 04/29/2016
    PHarris:
    We have 230 feet of 6 foot cedar fence and 10 feet of 4 foot cedar fence that we are planning on staining with TWP 1500. Is 15 gallons the correct estimate for the amount of stain needed to stain both sides of the fence?

    230 linear feet? If that is what you have then the total sq. footage is about 2900 sq. feet for both sides. That means you will need 25-30 gallons for two coats of TWP.
  • We will reply to your comment shortly
    PHarris · 04/28/2016
    We have 230 feet of 6 foot cedar fence and 10 feet of 4 foot cedar fence that we are planning on staining with TWP 1500. Is 15 gallons the correct estimate for the amount of stain needed to stain both sides of the fence?
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    TWP Stains · 04/24/2016
    rich difabio:
    how much to ship 2 gls. to 06085 thanks

    Please add products to cart. At cart you can enter your zip code and the shipping cost will update.
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    rich difabio · 04/24/2016
    how much to ship 2 gls. to 06085 thanks
  • We will reply to your comment shortly
    TWP Stains · 04/23/2016
    ChgoRon:
    I live in Chicago and I have new pressure treated deck, It was built last September 2015. I would like to keep the wood a light color but was to try and keep the maintenance low. The house has tan siding what stain should I use and what color do you suggest. Thanks

    Lightest tint in the TWP 1500 Series is the Honeytone. Prep first with the Gemini Restore Kit.
  • We will reply to your comment shortly
    ChgoRon · 04/22/2016
    I live in Chicago and I have new pressure treated deck, It was built last September 2015. I would like to keep the wood a light color but was to try and keep the maintenance low. The house has tan siding what stain should I use and what color do you suggest. Thanks
  • We will reply to your comment shortly
    TWP Stains · 04/14/2016
    Scott Hudson:
    My deck is pressure treated pine and has been in place for 2 years i have only used a linseed oil treatment so far, which TWP stain should i use for treatment, also, the deck is approximately 700 square feet with 80 feet of hand rail and splindles

    What state do you live in? Either the 100 or 1500 Series based on your state laws. Prep first with the Gemini Restore Kit. You will need roughly 8 gallons for the 2 coats.
  • We will reply to your comment shortly
    Scott Hudson · 04/14/2016
    My deck is pressure treated pine and has been in place for 2 years i have only used a linseed oil treatment so far, which TWP stain should i use for treatment, also, the deck is approximately 700 square feet with 80 feet of hand rail and splindles
  • We will reply to your comment shortly
    TWP Stains · 04/11/2016
    Jim Hayden:
    My deck is new, was coated with a transparent water based sealer (Thompson) a year ago. Your calculator says it is 400 Square feet.In the fall it was washed with a bleach/water solution and is pristine except for exposure since then to the weather in Prescott,AZ.It is red wood (first cut). I intend to use the redwood semi-transparent stain/sealer - 2 coats. What kind of cleaner would I use taking into consideration that is has been exposed for seven months.Do you have local distributors?

    Best to prep with the Gemini Restore Kit. We are an online dealer and can ship this to you.
  • We will reply to your comment shortly
    Jim Hayden · 04/11/2016
    My deck is new, was coated with a transparent water based sealer (Thompson) a year ago. Your calculator says it is 400 Square feet.In the fall it was washed with a bleach/water solution and is pristine except for exposure since then to the weather in Prescott,AZ.It is red wood (first cut). I intend to use the redwood semi-transparent stain/sealer - 2 coats. What kind of cleaner would I use taking into consideration that is has been exposed for seven months.Do you have local distributors?
  • We will reply to your comment shortly
    TWP Stains · 04/06/2016
    Rob Neumann:
    Can we use this product on untreated wood siding? I love it on my cedar shakes.

    Yes it can work on all exterior untreated wood as long as there is not a previous coating of a different brand.