Aug 20, 2022
HydroBlok's™ new 1½” Building Board, now available in a convenient 3′ x 4′ size, makes it easier than ever to design and install custom shower benches. Ideal for both corner and box-style configurations, this durable, waterproof board allows installers to create professional-quality seating features quickly and affordably. With just one or two sheets, you can craft benches that fit perfectly into any shower layout—saving time, reducing waste, and ensuring long-lasting performance backed by HydroBlok's™ trusted quality.
HydroBlok™ 1½” Building Board Now Available in 3’x4′
Part # HBWB3648112
Introduction
HydroBlok™ 1½” Building Board is now available in 3′ x 4′ sizing to make it easier than ever to add custom features to your new HYDROBLOK shower.
Custom shower benches are in high demand, and now they’re easier and more cost-effective than ever before with this new building board size.
You can:
Add a space-saving corner bench in two sizes using only one sheet of HydroBlok™ 1½” 3′ x 4′ Building Board, or
Use two sheets to build a box-style shower bench.
Create Your Own Custom Shower Bench
Medium Corner Bench
Ideal for smaller showers, the medium corner bench provides seating and functionality without taking up too much space.
Large Corner Bench
The large corner bench offers a more spacious seating area and additional design flexibility for larger shower spaces.
Shower Bench with HydroBlok™ Board
Using 1½” HydroBlok™ Building Board, you can easily install either a corner or box-style shower bench in minutes — with very little cost and effort.
Step-by-Step Guide
Step 1: Cut the Bench Pieces
Using the diagrams below and a saw or sharp utility knife, cut the pieces required for your shower bench.
For Corner Benches:
Cut a 45º angle on each end of the front panel.
Step 2: Dry Fit the Parts
Before applying any sealant, dry fit all parts to ensure a precise fit.
This will help you make any small adjustments before final assembly.
Step 3: Assemble and Seal
Use generous, continuous beads of HydroBlok™ Joint Sealant to:
Assemble your bench pieces, and
Secure the bench to your wall board.
Step 4: Ensure Proper Drainage
Make sure the bench top is slightly angled down into the shower area to allow water to drain properly and prevent pooling.
Step 5: Let It Cure
Allow the Joint Sealant to cure for at least one hour, and your bench will be ready for tiling!
Conclusion
With the new HydroBlok™ 1½” 3′ x 4′ Building Board, building a custom shower bench has never been simpler.
Whether you choose a corner or box-style design, you’ll enjoy the same durability, waterproofing, and precision that make HydroBlok™ the professional choice for modern showers.
