Cumaru Hardwood Decking Board with Grooves 21×145 (Custom Length)

Cumaru hardwood decking boards are an exceptional exotic wood known for their strength, excellent stability, impact resistance, and longevity. With its unique texture and rich golden-brown color, this wood is one of the most popular choices for decking. Cumaru is also called “Brazilian teak” due to its exceptional properties and resistance to environmental factors. It’s resistant to moisture, rot, insects, and weather changes, making it perfect for outdoor spaces.

Cumaru is one of the hardest and most durable wood species in the world. It features high density and natural oils that ensure resistance to environmental factors without additional treatment. These Cumaru hardwood decking boards are ideal for both residential and commercial spaces where an extremely reliable surface is required.

Characteristics

This hardwood species stands out not only for its strength but also for its elegant design. Cumaru hardwood decking boards are stable, resistant to deformation, and due to their density they absorb very little moisture. The wood has a uniform color, is protected from pests and rot, so it doesn’t require chemical treatment. It’s also highly resistant to impacts and abrasion, making it perfect for high-traffic areas.

Features

The unique characteristic of the wood itself is its interlocked grain, which creates distinctive patterns.
It is long-lasting, serving 25 years or more, even without additional treatment.
Resistance to environmental factors: moisture, cold, UV rays, mold, and insects.
Features high density – extremely hard wood, 2.5 times stronger than oak.
Pleasant vanilla scent, a natural wood property.
Easy to work with: perfectly suited for decks, veranda floors, pool areas, and the construction of piers and outdoor furniture.

Cumaru hardwood decking boards. Maintenance:

It is recommended to apply WOCA natural color oil or WOCA pigmented oil once a year to preserve and emphasize the natural color of CUMARU wood. Oiled boards also crack less.

Installation with Clips

At the front and back of the structure, it’s recommended to double the joists (second joist installed 10–20 cm from the first) to ensure greater stability. Spacing between joists should be 35–40 cm to prevent board end cupping. Doubling joists is also mandatory at board joining points.

Fastening is done using clips – hidden installation elements that allow boards to be secured without visible screws. This maintains an aesthetic, seamless board appearance, while installation becomes faster and more precise.

Recommended spacing between boards – 7 mm (using spacers).

Recommended

Leave gaps between boards (about 7 mm) to ensure proper ventilation and natural wood movement.
Use board clips.
Before installation, it’s advisable to acclimate boards to outdoor conditions.
If using top-down screw installation systems, it’s important to use high-quality, corrosion-resistant screws.

Application

Cumaru hardwood decking boards are a universal choice suitable for both private and commercial spaces:

For decks – provides an elegant, natural look.
For public spaces – cafes, restaurant outdoor terraces, and park furniture.
For pool areas and spas – moisture resistance and non-slip texture ensure safety.
For bridges, pedestrian crossings, and park paths – withstands heavy loads and adverse weather conditions.
For pier and boat deck construction – due to its moisture resistance and long service life.