How to Build a Portable Campus Board System for Road Trip Climbing Trips

There's a specific kind of frustration that hits when you're three days into a two-week Southwest climbing road trip, your fingers feel like cooked spaghetti after endless bouldering sessions at Hueco or Red Rock, and the only gym within 100 miles is a CrossFit box with a single pull-up bar and zero climbing-specific training tools. I learned this the hard way on a 2024 trip to Moab, when a flash flood warning shut down all local crags for 48 hours and I wasted two full days scrolling TikTok instead of training power. That's when I decided to stop making excuses and build a campus board system small enough to toss in my trunk, rigid enough to handle full campus laps, and simple enough to set up in 5 minutes flat between campground stops and hotel rooms.

What Makes a Portable Campus Board Actually Worth the Trunk Space?

A lot of DIY "portable" campus setups fail because they cut corners on the two things that matter most for campus training: rigidity and stability. A wobbly board doesn't just make your moves feel sloppy---it puts unnecessary strain on your shoulders, elbows, and finger pulleys, and can even lead to injury mid-crimp. Before you start cutting wood or buying parts, lock in these non-negotiables for a functional road-trip-ready system:

• It must be completely rigid, with zero flex when you're pulling hard on a full campus move. Even a quarter inch of flex throws off your timing and increases injury risk.
• It breaks down to fit in a standard sedan trunk or large hiking backpack, no disassembly tools required.
• It sets up in 5 minutes or less, no permanent fixtures needed (you don't want to drill holes in hotel room walls, obviously).
• It works on uneven, non-ideal surfaces: campground picnic tables, hotel room carpets, flat desert rock slabs, even the top of your crash pad if you're in a pinch.
• All holds are secure, with zero risk of spinning or pulling off mid-move, even when you're hanging your full body weight from them.

Build Options for Every Skill Level and Budget

You don't need to be a master woodworker to build a setup that works, and you don't have to break the bank either. Pick the tier that matches your comfort level:

Budget DIY ($30--$50, 1 Hour Build Time, Zero Experience Needed)

This is the setup I built first, and it's survived 8 road trips and counting. All you need is:

• One ½-inch thick sheet of Baltic birch plywood, cut to 3 feet wide x 4 feet tall (most hardware stores will cut it for free if you ask)
• 4 heavy-duty hinges (to fold the board in half horizontally, so when stored it's 3x2 feet, small enough to fit behind your car seat)
• 8 T-nuts and matching bolts (to attach removable climbing holds; T-nuts are cheap, easy to install with a basic drill, and let you swap holds out for different training goals)
• 4 rubber non-slip feet (to keep the board from sliding on smooth surfaces)
• A pack of assorted bolt-on climbing holds (2 large campus rungs, 4 medium crimps, 2 slopers, 1 small pocket)
• Optional: 4 heavy-duty suction cups rated for 50+ lbs each, to stick the board directly to smooth walls or rock slabs without lashing it to anything.

Build steps are stupid simple: Attach the hinges to the middle of the plywood so it folds evenly, install the T-nuts in a 6-inch spaced grid across the front of the board so you can reposition holds as needed, screw the rubber feet to the back corners, and attach your holds. When you're done, fold it in half, throw it in your trunk next to your crash pad, and you're good to go. If you don't want to mess with T-nuts, skip the plywood entirely and use a 2-inch thick sheet of rigid XPS foam insulation (the kind used for house siding) cut to the same 3x4 foot size. It's even lighter, completely waterproof, and you can attach holds with heavy-duty outdoor mounting tape rated for 30+ lbs per strip. Just make sure you test the holds with your full body weight before doing any dynamic moves.

Mid-Range Custom ($100--$150, 2--3 Hour Build, Durable for Heavy Use)

If you train campus boards regularly and want something that won't warp after a few road trips, upgrade to this setup. Start with the same 3x4 foot Baltic birch plywood base, but add a few quality-of-life upgrades:

• Replace standard hinges with locking metal hinges, so the board stays fully open when in use and won't wobble mid-move.
• Add a built-in mesh storage pouch to the back of the board, glued on with heavy-duty adhesive, so you can store your holds, chalk bag, and brush right on the board when it's folded---no extra bag needed.
• Swap basic rubber feet for adjustable leveling feet, so you can stabilize the board on uneven campground picnic tables or rocky terrain.
• Add 6 removable campus rungs of varying sizes instead of the standard 2, so you can adjust the difficulty of your sessions by swapping in lighter or heavier rungs as needed.

If you're really handy, you can even add a small foldable A-frame stand made of lightweight aluminum poles, so you don't have to lash the board to anything or find a smooth surface to stick it to. The whole setup still folds down to fit in a standard trunk, and weighs less than 15 pounds total.

Pre-Made Options (If You Don't Want to Build)

If DIY isn't your thing, there are a few commercial portable campus boards that work great for road trips. Look for models that are foldable, have T-nut mounts for custom holds, and weigh under 20 pounds. The Metolius Foldable Campus Board is a solid pick---it comes with a carrying case, pre-installed T-nuts, and a set of basic holds, and folds down to 3x2 feet for easy transport. Just be aware that pre-made options are usually more expensive than DIY, and you won't be able to customize the hold layout to match your training goals.

Pro Tips for Using Your Portable Campus Board On the Road

The setup is only half the battle---here's how to make the most of your training sessions without damaging your board or injuring yourself:

1. Master quick setup hacks for weird surfaces: If you're staying in a hotel with textured drywall, skip the suction cups and lash the board to the bed frame or a heavy dresser with 6 feet of paracord. If you're camping on soft ground, lay a flat piece of plywood or your crash pad under the board's feet to stop it from sinking into the dirt. If you're at a crag, stick the board to a smooth granite slab for a quick warm-up before your route---no need to drag it back to the campground.
2. Adjust your training for deconditioned tendons: Road trip climbing usually means you're bouldering or sport climbing every day, which beats up your fingers, but campus boarding puts unique strain on your pulleys and tendons. Start your first few sessions with partial campuses (only moving 1--2 rungs at a time) or lock-off holds, instead of full height campus laps, to avoid pulley injuries that can ruin your entire trip.
3. Keep your holds clean: Dust, sand, and chalk buildup will make your holds slippery mid-move, especially if you're training outside. Bring a small wire brush and a travel-sized chalk bag to wipe down holds before each session, and avoid over-chalking to keep grit from building up in the T-nuts.

Mistakes to Avoid at All Costs

• Don't use particle board or flimsy foam board for heavy campus training. It will flex under load, lead to sloppy form, and can even snap mid-move, sending you flying into whatever's behind you.
• Don't skip testing your holds before doing dynamic moves. Even if you tightened the bolts all the way, give each hold a hard tug with your full body weight to make sure it's secure before you start campus laps.
• Don't overload your board with unnecessary holds. Every extra hold adds weight, and you'll rarely use more than 6--8 holds for campus training anyway. Stick to the essentials to keep your setup light.

I pulled my foldable DIY campus board out of my trunk last week at a campground outside of Joe's Valley, set it up on a picnic table in 3 minutes flat, and ran 10 full campus laps while my friends were making dinner. By the end of the trip, my power endurance was so much better than it would have been if I'd just stuck to bouldering, and I didn't have to waste an hour driving to a gym in Salt Lake City to get it. For $40 and an hour of my time, that's a win no matter how you slice it. Next time you're packing for a climbing road trip, toss the extra pair of shoes you never wear and make room for a campus board instead---your fingers will thank you when you're sticking that crux campus move at the local crag.