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Deck Post Calculator

Deck
Joist Span = 1
Beam = 1
Deck Width =
Post
#Posts =
Spacing =

Help

Calculates the number of deck posts, and spacing, required for a deck with one side supported by a structure.
[https://infinitysw.s3.amazonaws.com/cengage/deckpost1.png]
[https://infinitysw.s3.amazonaws.com/cengage/deckpost2.png]

Rows

-Joist Span: Length that represents the span to be supported by the posts. The selected length should be equal to or less than the actual amount measured.
-Beam: Beam to be supported by the posts that will be used to support the joists.
-Deck Width: Width of the deck.
-#Posts: Number of posts needed.
-Spacing: On-center spacing of the posts.

Examples

Calculate the number of posts to support a deck with a beam to be built from two southern pine 2×10s. The center of the beam is 12 feet from the ledger on the house.
[https://infinitysw.s3.amazonaws.com/cengage/deckpost3.png]
[https://infinitysw.s3.amazonaws.com/cengage/deckpost4.png]
-Joist Span: 12ft
-Beam: Southern Pine, 2-2×10
-Deck Width: 20ft
4 posts are required to build this deck, spaced 6ft 8in apart.

Keywords

Joist Span
Beam
Deck Width
#Posts
Spacing
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