Building your own river surfboard takes about 30 to 40 hours over two to three weeks and costs roughly $300 to $500 in materials. You’ll shape a foam blank, reinforce it with fiberglass and epoxy resin, add fins, and finish with careful sanding and sealing. The result is a durable, river-specific board tailored to stationary waves and built to withstand the unique punishment of rocks, debris, and repeated impacts that ocean boards simply aren’t designed for.
Why go DIY when factory boards are available? Because …