Ground access hatch for cobblestone paving – Designed for elegant and durable surfaces

Cubic is a ground access hatch specifically developed for seamless integration into surfaces paved with cobblestones, granite, or similar stone materials. Its design allows for a uniform and refined appearance in historic, urban, or design-driven environments—without compromising accessibility, safety, or structural strength.

Cubic is engineered to blend smoothly into cobblestone, granite, or other comparable stone-paved surfaces. Its robust construction ensures high load-bearing capacity and safe access while maintaining a clean and cohesive aesthetic. Cubic is ideally suited for historic settings, urban spaces, and design-focused projects where form and function must coexist. The ground access hatch is also approved for smoke ventilation in case of fire.

Technical Specifications

• Model: CUBIC
• Materials: Aluminum, hot-dip galvanized steel, or stainless steel AISI 304/316
• Cover Options: Available as single cover, channel cover, or cover set
• Load Class: C250 kN and D400 kN in accordance with EN 124
• Dimensions: –
• Opening Method: Manually opened from above
• Smoke Ventilation: Approved for fire smoke evacuation

Options & Customizations

• Cutout for fire hydrant key according to SMS 1188
• Insulated cover (glass wool panel) for temperature-sensitive installations or reduced energy loss
• Safety grilles manufactured in accordance with SK2 or SK3 standards
• The cover can also be finished with floor screed, ceramic tiles, asphalt, or other surface finishes

Applications

• Public squares and city centers with historic character
• Courtyards and residential inner yards
• Parking areas and pedestrian walkways with stone paving
• Technical access covers in public environments

Benefits

• Discreet and aesthetic – blends naturally into its surroundings and creates elegant, harmonious surfaces
• High load capacity – suitable for pedestrian traffic as well as heavier vehicles
• Flexible and customizable – designed to meet high standards of safety, aesthetics, and functionality
• Long service life – thanks to a durable and robust construction

Installation

Always read the installation instructions carefully before starting, as these may vary depending on the model and options.

• Installation should be performed by qualified personnel and adapted to the project’s conditions
• The anchoring frame must be cast both from below and above to ensure secure and durable fixation

Operation & Maintenance

Always follow the specific operation and maintenance instructions provided with your order, as they may vary between models, materials, and options.

• Before operating the unit, ensure there are no obstacles in the lid’s movement path
• The ground access hatch should be opened and cleaned at least once a year, using clean water and a mild cleaning agent with a soft cloth or sponge. Avoid abrasive cleaning products
• Ensure that the gap between the lid and frame is free from gravel and dust