Calculate the Quantities
Use this helpful guide as a general reference while planning your ChoiceDek® composite deck.
Simply select the size of deck you wish to build, then see roughly how much material you'll need. These sizes and numbers are based on a basic square deck attached to a house on one side. For more complicated designs please consult with Lowe's Pro Services or a professional contractor.



(12' Boards)

(12' Boards)

(16' Boards)

(20' Boards)

(12' Boards)

(16' Boards)

(20' Boards)

(20' Boards)
![]() Deck Boards |
![]() Speed Rail Kits |
![]() Balusters |
![]() Post |
![]() Caps & Collars |
22 |
6 |
6 |
7 |
7 |
Please note this is an approximation, so prior to purchasing your materials, please consult with Lowe's Pro Services or a professional contractor to confirm your deck size and the exact amount of materials needed to build your deck.
