Cement / Concrete mix
For the base or walls of a pond (especially a concrete-pond style), you’ll want a strong concrete mix, often reinforced and sometimes with waterproofing additives. For example, one guide says for a pond you should use about 4″ of concrete and include reinforcing mesh or bars.
Rebars (reinforcing steel bars or mesh)
Concrete is strong in compression but weak in tension, so reinforcement is key for durability and avoiding cracks. As one article notes: “steel reinforcing rods will substantially increase the strength of the base and vastly reduce the chances of cracking.”
Pump
You’ll need a water pump if you plan water circulation, filtration, or a waterfall/stream. While I’m not listing specific pump products here (let me know if you want those), you’ll want to pick one sized appropriately for your pond volume and head height (vertical rise) and make sure it’s rated for pond/water-feature use.
Pavers / stepping stones / walking surfaces around pond
These are for access, seating edges, pathways. They must match the design and be safe (non-slip, durable).
Mortar / bonding materials
For walls, coping stones, pavers, or rendering/finishing surfaces you’ll need mortar, bonding agents, or waterproofing mortar mixes. For example: “Concrete is made by adding water, sand and gravel … while mortar refers to a finer sand and cement mixture used for bonding brick and stone.
