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
    Shawn Jenkins · 07/01/2015
    I am trying to determine what to do with my deck this year. I pressure washed last weekend and am thinking about sanding some areas as well. There are some areas that still have stain but most of it has peeled off. What are the recommended steps if I do sand the deck and what products would I need to strip/prep the deck before I stain? Is there a preferred method of applying the new stain that would work best?
  • We will reply to your comment shortly
    TWP Stains · 06/28/2015
    Ryan Wasik:
    I just finished building a cedar deck, about 1200 square feet. How long should I wait until i clean and seal the deck? What is your most natural looking stain? I don't want much tint added to the wood. Can you provide instructions along with quantities of your products I'll need for this project. Thanks in advance for your help.

    On a sperate note, my home is all cedar siding, can I use your products to clean and seal my siding? The house was built in 1998 and I see 5 gallon containers of Sikkens in the shed. Will your products completely strip the siding? Do i need to be careful of windows etc. Lots of questions here, thanks again.

    Ryan Wasik
    Caro, MI

    Please read this about new wood:
    http://www.twpstainhelp.com/prepping-new-wood-for-twp-stains/

    No tint means you will have no UV protection from graying. Lightest tint is the Honeytone color. Only one coat is required for new wood. About 6-9 gallons for 1200 sq. feet.

    As for the swing, you have to remove the Sikkens if you want to use the TWP. Sikkens has two versions of stain. One is strippable while the other is not. Not sure which version you have.
  • We will reply to your comment shortly
    Ryan Wasik · 06/27/2015
    I just finished building a cedar deck, about 1200 square feet. How long should I wait until i clean and seal the deck? What is your most natural looking stain? I don't want much tint added to the wood. Can you provide instructions along with quantities of your products I'll need for this project. Thanks in advance for your help.

    On a sperate note, my home is all cedar siding, can I use your products to clean and seal my siding? The house was built in 1998 and I see 5 gallon containers of Sikkens in the shed. Will your products completely strip the siding? Do i need to be careful of windows etc. Lots of questions here, thanks again.

    Ryan Wasik
    Caro, MI
  • We will reply to your comment shortly
    TWP Stains · 06/27/2015
    Teresa M:
    I have over 1000 square feet of pressure treated wood ranging from 12-20 years old. I have used Sikkens in the past (probably 3 plus years ago). It did not hold up well. I have deck in full sun and some in complete shade. After pressure washing, it does not appear to have any stain quality left.

    This past week, prior to researching products available and your recommendation of a specific cleaner, I had pressure washed with TSP wood cleaner. Is this sufficient or do I need to go over all of it again with a different deck wash? (I hope you say it's sufficient).

    Which is the best choice for me -100 or 1500? I live in southern Illinois: humid summers and winters with snow and some ice.

    Thanks.

    All of the Sikkens has to be removed. If you still have some visibly on the wood then you will need to strip it off and brighten the wood, TWP cannot be applied on top. For IL you have to use the 1500 Series.
  • We will reply to your comment shortly
    Teresa M · 06/26/2015
    I have over 1000 square feet of pressure treated wood ranging from 12-20 years old. I have used Sikkens in the past (probably 3 plus years ago). It did not hold up well. I have deck in full sun and some in complete shade. After pressure washing, it does not appear to have any stain quality left.

    This past week, prior to researching products available and your recommendation of a specific cleaner, I had pressure washed with TSP wood cleaner. Is this sufficient or do I need to go over all of it again with a different deck wash? (I hope you say it's sufficient).

    Which is the best choice for me -100 or 1500? I live in southern Illinois: humid summers and winters with snow and some ice.

    Thanks.
  • We will reply to your comment shortly
    TWP Stains · 06/21/2015
    Scott Retterbush:
    I would like samples of 3 of your stains shipped ASAP since I would like to start staining the next weekend if possible. The stains I would like to try are: Cedartone, Honeytone and Pecan. My address is: Scott Retterbush, 4273 Whisperwood Circle, Valdosta, Georgia 31602.

    Which stain is the lightest color that will give me just a slighter darker stain look to the wood but still looks natural.

    Lastly, the review I read said they used the 5 gallon bucket to stain 800 square feet (2 coats) yet when I use your calculator to calculate how much I will need for 630 sqare feet it say I will need seven gallons. How much will I need?

    Lastly, how quick will I get my stain if I order this Monday and how is it shipped?

    Thanks,
    Scott

    You can order samples here:
    http://www.twpstain.com/stain-samples

    Use our calculator for the amount needed. Shipping takes about 2-3 days to Georgia via UPS.
  • We will reply to your comment shortly
    Scott Retterbush · 06/21/2015
    I would like samples of 3 of your stains shipped ASAP since I would like to start staining the next weekend if possible. The stains I would like to try are: Cedartone, Honeytone and Pecan. My address is: Scott Retterbush, 4273 Whisperwood Circle, Valdosta, Georgia 31602.

    Which stain is the lightest color that will give me just a slighter darker stain look to the wood but still looks natural.

    Lastly, the review I read said they used the 5 gallon bucket to stain 800 square feet (2 coats) yet when I use your calculator to calculate how much I will need for 630 sqare feet it say I will need seven gallons. How much will I need?

    Lastly, how quick will I get my stain if I order this Monday and how is it shipped?

    Thanks,
    Scott
  • We will reply to your comment shortly
    TWP Stains · 06/19/2015
    Denise Cacciatore:
    my deck deminsions are:
    683 Squqre feet
    119 ft railing
    17 post
    2 wooden flowerboxes

    how much should I purchase?

    Please use calculator above for floor, steps, and railings then add and round up for the flower boxes and posts.
  • We will reply to your comment shortly
    Denise Cacciatore · 06/19/2015
    my deck deminsions are:
    683 Squqre feet
    119 ft railing
    17 post
    2 wooden flowerboxes

    how much should I purchase?
  • We will reply to your comment shortly
    TWP Stains · 06/18/2015
    Teri Avery:
    I am staining a pergola; how much stain do I need? Dimensions are: 13' x 13'

    Hello, we would need a total amount of wood in a sq. footage to give a proper answer. It could be anywhere for 2-5 gallons depending on how much wood you have.
  • We will reply to your comment shortly
    Teri Avery · 06/17/2015
    I am staining a pergola; how much stain do I need? Dimensions are: 13' x 13'
  • We will reply to your comment shortly
    TWP Stains · 06/16/2015
    Sylvia Murphy:
    My covered front porch measures 33ft 2.5 inches for length and 7ft 9 inches for width. Rails are painted white so don't need to calculate them for amount of stain. First of all, How much stain do I need to buy ? We had TWP on the porch for 8 years in TWP101 cedar tone natural and now it needs a new coat. Should we put on 2 coats ? If so, how many gallons are needed?Is this color still available. Can't find your product locally.

    Apply 2 coats of the TWP 101 wet on wet. You will need 3 gallons for this. We have this on our site here:
    http://www.twpstain.com/twp-100-series-1-gallon
  • We will reply to your comment shortly
    Sylvia Murphy · 06/16/2015
    My covered front porch measures 33ft 2.5 inches for length and 7ft 9 inches for width. Rails are painted white so don't need to calculate them for amount of stain. First of all, How much stain do I need to buy ? We had TWP on the porch for 8 years in TWP101 cedar tone natural and now it needs a new coat. Should we put on 2 coats ? If so, how many gallons are needed?Is this color still available. Can't find your product locally.
  • We will reply to your comment shortly
    Sylvia Murphy · 06/16/2015
    We just need TWP for the floor of the porch. Railings are painted white. We used your product almost 8 years ago and it is now ready for a new coat. Can't find it locally for sale. Our old gallon can says TWP101 Cedartone Natural. Is that still available and how much do I need for the size
    listed below?
    Our covered front porch length is 33 feet and 2.5 inches
    Our covered front porch width is 7feet and 9 inches
  • We will reply to your comment shortly
    TWP Stains · 06/12/2015
    Gloria:
    Wondering what the best color is for tigerwood deck. Would like as little color additive as possible but still have UV protection.

    Look at the Honeytone
  • We will reply to your comment shortly
    Gloria · 06/11/2015
    Wondering what the best color is for tigerwood deck. Would like as little color additive as possible but still have UV protection.
  • We will reply to your comment shortly
    TWP Stains · 06/10/2015
    Gerald Woodson:
    I have a dock (not deck) that I am refinishing. I took apart an old pine wood deck, flipped the 5 1/2 inch X 4 feet boards, had them planed and am now ready to stain/seal. I live on a small no wake lake in Central Wisconsin. What is your recommendation?

    Use the 100 Series.
  • We will reply to your comment shortly
    Gerald Woodson · 06/10/2015
    I have a dock (not deck) that I am refinishing. I took apart an old pine wood deck, flipped the 5 1/2 inch X 4 feet boards, had them planed and am now ready to stain/seal. I live on a small no wake lake in Central Wisconsin. What is your recommendation?
  • We will reply to your comment shortly
    TWP Stains · 06/09/2015
    Erick:
    Last year in June I applied TWP100 redwood stain and my wife doesn't like the color. This was the 1st coat on my 1 year old deck. It's time to clean and stain again and she wants to change to a darker brown color. Any ideas?

    Use the Restore A Deck stripper and pressure washing for the prep. Brighten the wood when done. Stain with the Dark Oak.
  • We will reply to your comment shortly
    Erick · 06/09/2015
    Last year in June I applied TWP100 redwood stain and my wife doesn't like the color. This was the 1st coat on my 1 year old deck. It's time to clean and stain again and she wants to change to a darker brown color. Any ideas?