This is a paid asset, but now you can download Warehouse Kit HQ Free.
Detail this asset from Unity Store: Original Link
Warehouse Kit HQ v1.0
Pack contains:
• The Warehouse Kit includes 45 modules prefab parts for constructing a modern warehouse. Modules consist of walls, roof, truss, concrete base, windows, doors, gates, lamps.
• 3 finished buildings.
• 11 Low-Poly cargo (barrel, polymer barrel, rack, two pallet, two wooden boxes, two carboard boxes, two transport containers.
• 22 Prefabs cargoes.
• 15 Prefabs (racks with cargoes).
• Animation of opening the gate and doors.
Detailed description of models -> Sketchfab.
Main features:
– HQ PBR Materials (Unity Standard) (albedo, roughness/metallic, normal, occlusion).
– Real scale models.
– It is possible to change the color of some objects (PSD).
– Low-Poly models.
– Ready prefabs.
– Texture size not more than 2048×2048