ram-board for Wall Repairs & Single Board Computers: 7 Questions I Wish I’d Asked

What You'll Find Here

If you've ever stared at a hole in your wall and thought, "How hard can it be?"—or if you're trying to figure out the difference between a single board computer with 16GB RAM versus 32GB RAM—then this is for you.

I've been handling orders for construction materials and specialty components for about 6 years now. I personally made (and documented) 11 significant mistakes in my first two years, totaling roughly $4,200 in wasted budget. Now I maintain our team's checklist to prevent others from repeating my errors.

Below are the questions I hear most often—and the answers I wish someone had given me.

1. Can ram-board actually be used for patching a hole in the wall?

Short answer: Yes, but not the way you might think. Everything I'd read online said you need drywall or a specific wall patch kit. In practice, I found that ram-board—specifically the rigid, high-density type used in construction site protection—works surprisingly well for temporary or low-traffic area patches.

I once patched a 4-inch hole in a storage room with a cut-to-size piece of ram-board. It held up for 18 months. Looked fine. Not a long-term fix for a living room, but for a workshop or garage? Absolutely functional.

That said—if you're patching a wall in a finished area you care about, use proper drywall compound and mesh tape. Ram-board is a strong temporary solution, not a replacement for the real thing.

2. What's the real difference between a single board computer with 16GB RAM vs. 32GB RAM?

I get this question a lot. The conventional wisdom is "more RAM is always better." My experience—having spec'd out single board computers for test rigs, media centers, and lightweight servers—suggests otherwise.

Here's the honest breakdown:

• 16GB RAM: Fine for media streaming, home automation hubs, basic file serving, and most single-purpose tasks. I've run a Pi-hole + lightweight NAS + Plex on a single 16GB board for 14 months without issue.
• 32GB RAM: Worth it if you're running multiple VMs, doing light development work with containers, or handling datasets that spill out of 16GB. But I've seen plenty of setups where 32GB was overkill for the actual workload.

Roughly speaking, 80% of single board computer users are fine with 16GB. Don't take my word for it—check your actual use case. If you're just running one or two services, 16GB is plenty. If you're stacking Docker containers like Lego bricks, go with 32GB.

3. Are those milk glass shower caps actually useful, or is that a myth?

People assume milk glass shower caps are just a bathroom vanity trend. What they don't see is the practical application: plumbers and contractors use them during rough-in phases to protect exposed shower valves from drywall dust and paint.

In early 2024, I ordered 50 units thinking they'd work for standard Schluter trim valve covers. Discovered this when the order arrived: they fit, but the flexible plastic didn't seal tightly enough for overhead spray testing. We had to switch to purpose-made caps for the pressure-testing phase.
Net loss: $230 on caps we couldn't use + a 2-day delay.

Milk glass caps are great for dust protection during construction. But if you need a water-tight seal for testing, get proper threaded caps.

4. How to patch a hole in the wall the right way?

I've patched maybe 30 holes over the years. The first 5 were disasters. Here's what I've learned:

1. Clean the edges. Loose drywall paper will ruin your finish.
2. Use mesh tape for holes bigger than 2 inches. Paper tape for smaller ones.
3. Apply thin coats. Everyone puts on too much compound. I did too—my first patch was a lump that required sanding for an hour. Thin coats, let dry, repeat.
4. Sand between coats. You'll be tempted to skip it. Don't.
5. Prime before painting. Unprimed patches look like a matte scar even if the color matches perfectly.

If you've ever had a patch crack within a month, it's usually because you didn't let the compound dry fully. Wait 24 hours between coats—even if the label says "dries in 2 hours." That's for very thin coats. Real-world drying time is closer to 12–24 hours.

5. What about ram-board and single board computers—is there any overlap?

This one surprised me. In September 2022, I was prepping a batch of single board computers for a client's IoT deployment. We needed enclosures that were fast to prototype and could handle moderate vibration.

I had leftover ram-board from a construction project. Cut it into mounting plates. Worked perfectly for that purpose. The material is rigid enough to hold a board, easy to cut, and doesn't conduct electricity.

I wouldn't use ram-board for any production-grade or safety-critical mounting. For a quick prototype or temporary setup though—it's a valid option. Another case where the "cheap" thing turned out to be practical.

6. Are there any hidden costs with single board computers?

Yes, and this is the mistake I see most often. People compare just the board price without factoring in:

• Power supply: A quality adapter can be 20–30% of the board cost.
• Storage: MicroSD cards work but aren't reliable for constant writes. An SSD or eMMC module adds cost.
• Case & cooling: Running a board without a heatsink or fan in a confined space leads to throttling—or failure.
• Shipping and handling: These add up faster than expected. Pricing accessed December 15, 2024—verify current rates.

The total cost of ownership for a single board computer setup is often double the board price. Plan for that.

7. So what should I actually buy?

I recommend ram-board for temporary wall protection or quick patches—but only if you're okay with a non-permanent fix. For a real wall repair, use proper materials.

For single board computers: if your workload fits in 16GB RAM, get the 16GB board. The 32GB version is better for specific use cases, not universal. If you're on the fence, map out your expected workload first. You can always upgrade the storage later. You can't upgrade the RAM.

Avoid buying the cheapest option unless you've verified the total cost. I saved $40 by choosing a budget single board computer once. It failed within 3 months. Replacement cost + data recovery: $300. The 'cheap' choice isn't always a bargain.

Take it from someone who made that mistake: spend the extra money on a reliable power supply and storage first. Worry about the board second.