Deck Post Calculator
Calculate how many support posts your deck needs and what size lumber to use based on the deck height and tributary area.
Recommended products for this project
As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure.

4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount
View on Amazon
6 Pack Solar Post Cap Lights Outdoor with 3 Modes, 40 LEDs 4x4 Fence Post Solar Lights Outdoor Waterproof, 30 Lumens Fence Deck Post Lights Solar Powered for 4x4 3.5x3.5 Vinyl Wooden Post
View on Amazon
Fasteners RSS 5/16 x 4 Inch, Structural Screws, 100 PCS, Rust Resistant Climatek Coating, Heavy-Duty Framing & Decking Screws, Fast Bite Tip, Star Drive Recess, T-30 Bit Included, Gold
View on Amazon
4x4 Post Base 8 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount…
View on AmazonGet the Smart Decking Calculator app
iOS and Android apps coming soon — join the waitlist below.


