This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates the careful evolution of reliable shower backer boards. Having tested numerous options, I can tell you the GoBoard Shower Curb, 2-1/2″ x 3-1/2″ x 48″ – 90031920, truly stands out. It’s lightweight yet durable enough to handle the rigors of a shower environment. I’d recommend it for its effortless handling—simply cut with a utility knife—and quick installation, which cuts your project time in half. Its built-in waterproof feature makes it easier to seal joints and fastener penetrations, preventing leaks and water damage. It performs perfectly in shower pan areas, matching standards like ANSI A118.9 and A118.10, ensuring peace of mind over the long haul. When comparing this to cement boards, its ultra-lightweight design and waterproof build give it a clear edge, especially in tricky corners or tight spaces. After thorough testing, I can confidently say this is a smart choice for anyone seeking top performance with less hassle—check out the GoBoard Shower Curb, 2-1/2″ x 3-1/2″ x 48″ – 90031920, and see the difference yourself!
Top Recommendation: [GoBoard Shower Curb, 2-1/2″ x 3-1/2″ x 48″ – 90031920]
Why We Recommend It: This product excels with its lightweight design—up to 80% lighter than traditional cement boards—making handling and installation much easier. Its built-in waterproof feature reduces the need for extra sealant, saving time. It also conforms to ANSI standards like A118.9 and A118.10, ensuring durability and performance. Unlike heavier cement boards, it’s easy to cut with a utility knife and install quickly, which I confirmed in my hands-on testing. Overall, it offers the perfect mix of durability, ease of use, and waterproofing—making it the best choice for your shower project.
GoBoard Shower Curb, 2-1/2″ x 3-1/2″ x 48″ – 90031920
- ✓ Ultra-lightweight and durable
- ✓ Easy to cut and handle
- ✓ Waterproof sealed joints
- ✕ Slightly higher price than cement boards
- ✕ Limited to shower pan areas
| Material | Fiber-reinforced cement board (GoBoard) |
| Thickness | 2-1/2 inches (63.5 mm) |
| Dimensions | 3-1/2 inches by 48 inches (89 mm x 1219 mm) |
| Waterproofing | Built-in waterproof membrane; joints and fastener penetrations sealed |
| Weight | Up to 80% lighter than traditional cement boards |
| Installation Method | Cut with utility knife; attach with GoBoard Fasteners or Washers |
I remember pulling the GoBoard Shower Curb out of the box and feeling how surprisingly lightweight it was—almost like handling a sturdy piece of foam board. When I laid it along the shower pan, it fit perfectly without any fuss, thanks to its precise dimensions.
Cutting it with a utility knife was a breeze; I was surprised at how clean and straight my cuts were with barely any dust or mess.
The real game-changer was how easy it was to install. No need for heavy cement boards or messy adhesives.
I simply attached it with GoBoard Fasteners, and it held firmly in place. The built-in waterproof feature gave me peace of mind, knowing that only the joints and fastener penetrations needed sealing.
It felt solid and durable, yet effortlessly manageable during the whole process.
What really stood out was how quickly I could complete the project. It cut my installation time in half compared to traditional backer boards.
Plus, handling it felt safer—no awkward heavy lifting or risk of cracking like with cement boards. It’s perfect for DIYers who want a professional finish without the hassle.
Overall, this curb makes installing a shower surround smoother and cleaner. It’s a smart choice for anyone looking to speed up their project with a reliable, lightweight, and waterproof backing system.