Kc Davis
Region: US
Saturday 11 April 2026 16:17:58 GMT
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Chelsea :
Also not a carpenter but the daughter of a master carpenter. I think you’d actually want to go with 2x8 or 2x10 boards that are pressure treated. My understanding is that essentially the wider boards distribute the load better and are therefore stronger. I am fairly certain that standard deck boards are 2x6, but obviously those are intended for walking, not driving.
2026-04-11 16:35:27
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Icingirl :
As a girl who grew up driving heavy farm equipment over sketchy bridges - make sure your RR ties are in good condition with solid support. Then - 2x10s going side to side make sure everything is properly sealed. Then on top run 2 - 4 x10’s end to end. The width between those 2 4x10’s should = your wheel base of your cart. Having those will help distribute the weight better. And yes…. Google lumber yards near me. They will be the best bet with the best pressure treated lumber.
2026-04-11 19:48:07
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Venus :
I asked my carpenter. He’s been doing it 30years. Replacing with plywood is a good option. I guess there’s such a thing as marine grade plywood?? It’s kind of waterproof. Putting 2x8 or 2x10 adds a lot of weight plus the Kubota. The railroad ties could probably hold either. But the weight of the boards would be the thing to think about. You’d probably have to replace the plywood at some point. The boards would last longer. ✨I hope this helps ✨
2026-04-11 16:48:28
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Rough Rapids Ahead :
You could use 2x4 (or a bit wider) as new planks. Ensure you get pressure treated boards. Go to a real lumber yard, not Home Depot or Lowe’s. Tell them exactly what you’re going to do with the boards. I would also recommend you paint it with quality outdoor paint, and repaint every couple of years.
2026-04-11 16:44:59
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auntkate888 :
consult with engineer?
2026-04-12 11:00:36
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It's Me :) :
I've never seen railroad ties that look like that 🤨 doesn't mean they're not just means I've never seen any that look like that The ones I've seen are all soaked in tar. To me, those look more like the utility poles they use on residential property... I don't think they are able to structurally withstand that much weight without some sort of bracing 💪 something that functions like these in this pic
2026-04-11 19:18:06
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Jessi :
rip the top off and put something like a deck board on top of it. you could top it off with more ply wood to keep it a smoother ride across and add more stability to the top
2026-04-11 16:31:59
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cassidyswanderings :
the most important part is the rail road ties. you absolutely should pull up the rotting plywood. when you do, inspect the railroad ties well and make sure they are still structurally sound. when you rebuild the bridge use pressure treated lumber and make sure to leave gaps between the boards for water to drain. don't but them right up against one another. the plywood held water and didn't drain well so it sat and absorbed into the plywood and allowed it to slowly rot even if it was marine grade plywood.
2026-04-12 04:32:05
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catty cat :
Wife of a carpenter here. You need to deconstruct so you can get an accurate visual of the entire structure from the ground up. You need to see the footings, posts, beams, bases, caps, etc… If it were my bridge, I would just plan to build the whole thing over, properly.
2026-04-11 22:49:17
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Jenna :
not a carpenter but sounds like a good idea!
2026-04-11 16:31:04
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Kristin_Holla :
After living through hurricane Helene, I can attest to the durability of using a shipping container with both ends open as a bridge. We still have so many container bridges that are still being used daily.
2026-04-13 18:23:31
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kellyperez11 :
Look at me running to the comments like I need to know this info as well! 😂
2026-04-12 15:04:30
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Rachel Iversen :
yes. replace the plywood, the poles will last 30+ years. get pressure treated lumber.
2026-04-12 01:07:12
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Brandi 🆘🇺🇲 #ffab :
Wider boards pressure treated if you can....
2026-04-11 18:20:45
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maiaculpa :
What about open metal grid instead of wood
2026-04-11 17:23:36
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Bridget 💛 The Velvet Dot :
Never thought I’d be jealous of a two row golf cart 😂😂😂 happy for you and your side quests lol best of luck w/ the bridge. I have zero advice lol sorry
2026-04-11 16:26:53
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mammabear_1973 :
I'd be worried about the weight you're adding in wood plus equipment. it may need bracing in the middle of adding too much weight. I think we need engineering feedback
2026-04-11 17:13:50
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Ryder :
Honestly I’d remove the plywood and lay 5 new, longer railroad ties alternately along the existing ties. Depending on the span and weight of vehicle a structural engineer would prob also recommend vertical supports
2026-04-11 18:31:41
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Jilean :
Roadrunner bridge in a box
2026-04-11 17:08:25
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Tedsgirl65❌️ :
Replace the decking with 2x8 or 2x10 for more strength. The plywood has outlived it's purpose.
2026-05-23 10:48:53
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heydadthisisagiftfromboo :
2x8 or 2x10 southern yellow pine pressure treated. Screw them down with Timberlock screws or GRK with a big flat head. Smaller diameter than lag screws and GRK are self drilling so wood does not split. But as strong or stronger that bigger lags.
2026-06-07 02:01:03
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zoë | leftistprepper :
are you trying to diy a bridge? hahaha this is something i’d also try to do
2026-04-13 19:56:56
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CatchTwinT2 :
Female GC here. standard deck boards are only 3/4 boards.. but 2x8 pt boards are absolutely the way to go. I wouldn't quite do the 2x10s only because they tend to cup when laid on their side and could make for a rough ride over time.also get you some 5/16 x 4 inch lags do not use standard deck screw. I would also Make sure you leave a 1/4 gap between boards to allow water drainage once the boards, if they are pressure-treated, dry and shrink, they should leave you a nice gap to drain water without getting clogged with debris
2026-05-14 15:40:59
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Josie Allen :
Yes!! It’s decaying plywood that is the problem. Make sure the wood you put down is treated for outdoor use so it doesn’t rot. If you want to Make it even stronger reinforce where the tires will run across it by placing wood down across the 2x4’s (so it looks almost like wooden train tracks.) That’s what they did on the OLD county bridge where I live.)
2026-04-12 17:07:20
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WhiskerStitch :
For a second, I thought you were looking over the edge instead of under it and nearly had a panic attack on your behalf 😅
2026-04-13 13:46:23
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