281 501-7940 knock@knockfence.com

Deck calculator

An online calculator for decks and patios can help accurately calculate the required materials and cost of the job for installing wood decks, Trex composite, and patios. This construction calculator is useful for both construction builders and inexperienced deck customers to understand the components of a new deck. Additionally, you can compare prices with other companies such as Lowe's, Home Depot, and American Fence. With this calculator, you can instantly calculate the cost of deck installation, download an estimate, discuss the conditions with your family, and send it to us to agree on the installation date, thereby saving money, time, and stress.

Choose a deck board

Wood Board 2x6
Wood Board 5/4x6
Composite Board saddle
Composite Board clam shell

Choose a deck style

Horizontal style
Vertical style
Diagonal style
Pool or free place

Consider stairs and railing

Stairs

Railing

  • Example: 1+2+3 or more (feet)

Do you need demolition & hauling old construction & delivery ?

Demolition old deck
Delivery deck
Hauling old deck
Please enter the length and width of the deck
281 501-7940
Installation (LABOR) PRICE
Item name
quantity QTY
price
total
Deck installation
0
0
0
Railing install
0
0
0
Stairs install
0
0
0
Railing stairs
0
0
0
Add diagonal style
0
0
0
Add pool or free place
0
0
0
Demolition construction
0
0
0
Hauling old construction
0
0
0
Delivery
0
0
0
Total labor
$0
MATERIALS LIST AND AN ESTIMATE TOTAL
Item name
quantity QTY
price
total
Post 4x4x8 PT pine
0
0
0
Wood Board 2x6 16' PT
0
0
0
Wood Board 2x6 12' PT
0
0
0
Wood Board 2x6 8' PT
0
0
0
Wood Board 5/4x6 16' PT
0
0
0
Wood Board 5/4x6 12' PT
0
0
0
Wood Board 5/4x6 8' PT
0
0
0
Frame 2x6 16' PT
0
0
0
Frame 2x6 12' PT
0
0
0
Frame 2x6 8' PT
0
0
0
Fascia 2x6 16'
0
0
0
Fascia 2x6 12'
0
0
0
Fascia 2x6 8'
0
0
0
Fascia 2x8 16'
0
0
0
Fascia 2x8 12'
0
0
0
Fascia 2x8 8'
0
0
0
Fascia 2x12 16'
0
0
0
Fascia 2x12 12'
0
0
0
Fascia 2x12 8'
0
0
0
Stair Stringer 3
0
0
0
Stair Stringer 5
0
0
0
Stair Stringer 6
0
0
0
Stair Board 2x12 12'
0
0
0
Stair Fascia 2x6 12'
0
0
0
Stair post 4x4x8
0
0
0
Stair railing
0
0
0
Stair railing top 2x6 12'
0
0
0
Railing
0
0
0
Railing top 2x6 12'
0
0
0
Railing post 8'
0
0
0
Railing post 10'
0
0
0
Joint
0
0
0
Concrete
0
0
0
Trex Board 1x6 16'
0
0
0
Trex Board 1x6 12'
0
0
0
Trex Board 1x6 8'
0
0
0
Sleeve post 4.5x4
0
0
0
Cap Post 4x4
0
0
0
Trim Post 4x4
0
0
0
Stair Board Trex 12'
0
0
0
Stair railing Trex
0
0
0
Railing Trex
0
0
0
Subtotal
$0
Tax
$0
Total materials:*
$0
downloaded from www.knockfence.com
Total project
$0
Price per sq. ft. Deck
$0
Demolition - not included
$0
Hauling - not included
$0
Delivery - not included
$0
*Material prices are valid for 24 hours, prices may change on the day of installation.
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If you are planning waterfront improvements along with deck or patio construction, understanding the Clear Lake Shores bulkhead construction cost can help you better plan your overall outdoor project budget.

Additional Information for Calculating Deck and Patio Estimates

Our online deck and patio calculator helps estimate the cost of installing wooden decks, Trex composite decks, and patios with stairs and railings. In most cases, the estimate is very close to the final price, with accuracy depending on the correctness of the entered data — such as the deck’s length, width, and height. The calculator is easy to use and will help you calculate both material and labor costs by following the instructions below.

Choose your deck dimensions — Select the length, width, and height of the deck to begin your estimate.

Enter the deck length in feet — The deck length is one of the main factors affecting cost, so measure as accurately as possible.

Enter the deck width in feet — The deck width also significantly affects the total cost and should be measured carefully.

Select the deck height — Choose the deck height in feet, such as 0.5 ft (6"), 0.67 ft (8"), 1 ft, 2 ft, 3 ft, or 4 ft.

Choose deck boards — Select surface materials, including wooden boards (2x6 or 5/4x6) or Trex composite boards in popular colors such as Saddle or Clam Shell.

Choose a deck style — Select from popular deck layouts, including horizontal, vertical, diagonal, pool-side, or free-standing designs.

Consider stairs — If your deck includes stairs, enter the stair length, quantity, and optionally add a railing.

Consider railings — You may add railings by entering the total perimeter length of the railing in feet.

Calculate — Click the “Calculate” button to generate your estimate. If required fields are missing, the system will prompt you to enter the deck length and width.

Download estimate — You can download the calculated estimate as an image once all required fields are completed, including your name, phone number, and full address with ZIP code. After clicking the button, allow approximately 10–50 seconds for the image to generate. If nothing happens, click the “DOWNLOAD ESTIMATE” button again. On iPhone and iPad, you may need to manually save the image to your device.