I've got an old wooden deck that's been around for about 20 years, and I'm noticing some rotting in the posts since they were likely placed directly in the ground. I'm in discussions with decking companies about getting a new surface and stairs, but they're recommending replacing the entire frame, which is bumping up the cost by $15,000. Is there a way to just replace the posts and keep the existing beams and joists? Also, can the deck be removed and put back on new posts as one unit? The current setup is about half a story above the ground and measures 10x20 feet, and I'm planning to use Trex decking for the new surface.
3 Answers
Keeping the old frame could be tempting, but remember, you might face issues down the line if it’s not built to code or if it's near the end of its lifecycle. Plus, moving a heavy frame is tricky, and it could cost more in labor than just starting fresh. If you do decide to keep it, ensure that it’s thoroughly inspected, as sometimes the wood can look okay but still be deteriorating.
Honestly, with a deck that old, I wouldn’t count on the frame lasting much longer. You might find yourself replacing it shortly after the new decking goes on, which would defeat the whole purpose of trying to save. Given Trex has a solid warranty, make sure your base is equally strong for the best outcome in the long run!
It really depends on the condition of your current frame. If the wood and fasteners are holding up and you're sure they’re in good shape, reusing them could save money. However, if you’re going with a professional, they're likely more cautious and might prefer replacing everything to avoid future liability. Have someone inspect your structure carefully to avoid any surprises down the line!
That makes sense. I had a few companies check it out, and they said it was solid overall. Just some tweaks needed according to modern code.

Totally get what you're saying. I thought I could save some cash, but it might just be a pain in the long run.