No, concrete boxes are not the only type rated for use in sidewalks. Other types of junction boxes that are rated for sidewalks include: Cast iron boxes

These boxes are made of durable cast iron and are designed to withstand heavy pedestrian traffic.

Polymer concrete boxes

These boxes are made of a combination of aggregate and polymers, and offer high strength and durability.

Fiberglass boxes

These boxes are made of fiberglass and are lightweight and corrosion-resistant.

PVC boxes

These boxes are made of PVC and are resistant to moisture and chemicals.When selecting a junction box for use in a sidewalk, it is important to consider the following factors:

Load capacity

The junction box must be able to support the weight of pedestrian traffic and any other loads that may be placed on it.

Durability

The junction box must be made of a durable material that can withstand the elements and heavy use.

Water resistance

The junction box must be able to prevent water from entering and damaging the electrical components inside.

Size: The junction box must be large enough to accommodate the electrical components and provide easy access for maintenance.Once you have selected a suitable junction box, it is important to install it properly according to the manufacturer's instructions. This will ensure that the junction box is secure and protected from damage. Flag for review