Securing deck posts on a slope

Hey all! I'm looking to build a 6'x8' deck platform to place a cheap flat-pack steel 6'x4' shed on. This would normally be an easy build but I don't have a single flat space of land on my property. The best location I have currently slopes down and to the right making about a 1.5ft elevation difference between the left-back and front-right corner. My original plan was to sink 6"x6" pressure-treated posts 1ft into an 18" 10-inch diameter poured concrete footing, but several threads here and elsewhere on reddit have made that seem like a bad long term strategy due to water buildup in the wood and the potential for the 6x6 to rot. I'm worried standard deck footing blocks on either level packed ground or concrete footings without any ground anchoring won't be enough to keep the deck in place with the full side profile of the shed in the wind. What's the best way to structure and secure this deck long-term? Thanks! submitted by /u/dead-eye-blaze223 [link] [comments]

May 19, 2025 - 20:06

Hey all! I'm looking to build a 6'x8' deck platform to place a cheap flat-pack steel 6'x4' shed on. This would normally be an easy build but I don't have a single flat space of land on my property. The best location I have currently slopes down and to the right making about a 1.5ft elevation difference between the left-back and front-right corner.

My original plan was to sink 6"x6" pressure-treated posts 1ft into an 18" 10-inch diameter poured concrete footing, but several threads here and elsewhere on reddit have made that seem like a bad long term strategy due to water buildup in the wood and the potential for the 6x6 to rot. I'm worried standard deck footing blocks on either level packed ground or concrete footings without any ground anchoring won't be enough to keep the deck in place with the full side profile of the shed in the wind. What's the best way to structure and secure this deck long-term? Thanks!

submitted by /u/dead-eye-blaze223
[link] [comments]