H20 Timber Beam: High-Strength Support Beam for Concrete Formwork Systems

In concrete formwork and falsework systems, the support beam is critical to the safety, speed, and cost of any pouring project. H20 timber beams have become the global standard for wall, slab, and column formwork—offering an ideal balance of strength, light weight, and durability for residential, commercial, and infrastructure construction worldwide.

What Is an H20 Timber Beam?

An H20 timber beam is a lightweight, high-strength engineered wood beam with an H-shaped cross-section. It consists of laminated veneer lumber (LVL) flanges and a multi-layer plywood or OSB web, bonded together with waterproof structural adhesive. The H20 designation refers to the beam's 200mm height—the industry standard dimension that ensures compatibility with most formwork accessories, including clamps, brackets, props, and tie rods. The H-shaped design maximizes strength while minimizing weight, making it the preferred choice for concrete formwork support structures.

Key Technical Specifications

Key Advantages

1. High Load Capacity

Despite their light weight, H20 timber beams deliver exceptional structural performance. Depending on span and configuration, they can support up to 20–25 KN per meter of distributed load—sufficient for most wall, slab, and bridge formwork applications. The engineered LVL flanges provide high bending strength, while the plywood web resists shear forces effectively.

2. Lightweight and Easy Handling

A standard 3.9m H20 beam weighs only 18–22 kg. This allows for manual handling and fast assembly without heavy lifting equipment, reducing labor costs and improving on-site safety. The lightweight design also simplifies transportation and storage on crowded construction sites.

3. Excellent Durability and Reusability

Manufactured with waterproof phenolic resin adhesive, H20 beams resist moisture and delamination. The LVL flanges are made from high-density veneers with straight grain and no knots, ensuring consistent strength across the beam length. With proper care and handling, they can be reused 50–100 times, delivering excellent long-term value for contractors with multiple projects.

4. Perfect Compatibility with Formwork Systems

H20 beams are designed to work seamlessly with aluminum or steel formwork systems, as well as traditional timber shoring. Standardized 200mm height and 80mm flange width ensure compatibility with most formwork accessories—clamps, brackets, props, tie rods, and drop-heads. This interoperability reduces the need for specialized components and simplifies inventory management.

5. Versatile Applications

From high-rise slabs to bridge decks, H20 beams adapt to virtually any concrete forming scenario. They function as primary beams spanning across props, secondary beams supporting deck panels, vertical stiffeners for wall formwork, and perimeter framing for column and beam forms.

Common Applications

• Slab formwork — primary and secondary beams for concrete floor slabs

• Wall formwork — vertical support and stiffening for tall walls

• Column formwork — perimeter framing around column forms

• Bridge and infrastructure — heavy-duty falsework and deck support

• Climbing formwork — support for self-climbing systems

• Tunnel forms — internal support structures

Why Choose Our H20 Timber Beams?

• Premium LVL flanges — high density, straight grain, no knots for consistent strength

• Waterproof phenolic adhesive — resistant to concrete, moisture, and weather conditions

• Precision manufacturing — consistent dimensions, smooth surfaces for reliable clamping

• Quality control — each beam inspected for straightness and adhesive bond integrity

• Competitive factory pricing — bulk order discounts available

• Custom lengths available — cut to your project requirements

Need high-quality H20 beams for your next formwork project?

Contact us today for a free quote, technical datasheet, or sample beam.