A large assortment, quite convenient Parking. It's a long way to go, but I think that for a building materials store, walking distance is a secondary thing.
A very good hardware store by the standards of Svetlogorsk. I often shop there. If I don't find something from them already, then I'm going to other hardware stores.
A good store on the outskirts of the city.
The prices are adequate, no matter what.
Nearby competitors also have a good range of construction products.