I'm in the process of building a small 3'x4' deck next to my above-ground pool. I expect it will be used by one person at a time, so I don't anticipate heavy jumping or lots of stress on it. I have a few specific questions regarding the build:
1. I'm going to pour concrete footers for stability. Since I live in a region without a frost line, how deep should I go to ensure it's stable?
2. I'm planning to use 4x4 posts for the corners and 2x6 joists. While I know that many decks use larger posts and joists, I feel like my choices should be adequate given the size and intended usage. Am I on the right track?
3. The deck isn't attached to anything, so it relies purely on the posts for support. Should I add cross bracing for added stability, or is it unnecessary? Also, are there any other considerations I should keep in mind due to the small size and height of the deck?
Thanks in advance for any advice!
4 Answers
Many say you could get away with pier blocks instead of deeper footers. Fill the bottom with gravel for drainage, then level everything out. Also, don't forget to polish it up from time to time to keep it looking good!
Honestly, at 3'x4', it's more like a platform than a proper deck. You might just want to build a simple box from rot-resistant wood, something like a flipped-over apple crate would work. That way, you can make it exactly to size without worrying too much about measuring. Plus, using pier blocks set on gravel can save you some hassle, too!
Just for reassurance, adding cross bracing is a good idea, especially since it'll rely only on the posts. It won’t hurt, and it's an easy addition. Consider digging 12-16 inches deep for your posts, adding some gravel at the bottom to stabilize. Better safe than sorry, right?
Your plans sound pretty solid! For the footers, if you're in a dry area, just make sure you dig down until the ground is dry—like 8-12 inches should be enough. Also, consider adding knee braces at the corners; they can provide extra stability. And yeah, a nice outdoor rug can help prevent slipping when wet.
Great idea about the outdoor rug! It will definitely help with the slip factor.