Build abandoned factories, warehouses, utility corridors and facility interiors from one modular kit instead of a pile of random models. What's inside (54 pieces, all on one 8-stud grid): - Walls: concrete (3 texture variants so long walls don't repeat), clean concrete, brick, painted block with peeling paint, corrugated metal cladding, exposed formwork concrete, steel-frame wall, pipe-chase wall whose pipes join up across walls, and a smashed walk-through breach with rebar. - Openings: door, double door, 12-wide loading door, window and long observation window, each with invisible colliders so the gap stays open. - Junctions: inside and outside corners (yellow corner guards), T, cross, end cap, wall-type transition, and stacking pieces for 20-stud warehouse walls. - Structure: concrete and steel columns (12 and 20 tall), round pillar, buttress, I-beams, X-bracing, wall bracket. - Floors: concrete, worn, cratered, diamond plate, bar grating, trench drain, kerb edge, concrete-to-steel transition, half tiles. - Ceilings: concrete, ribbed, corrugated metal deck, open-web steel joists, exposed-structure roof, access hatch. Why it's easy to use: - 12 original tiling PBR materials (SurfaceAppearance), made by us, no third-party textures. - Tested in Roblox Studio: pieces snap with no gaps, walls stack 12 + 8 for tall warehouses, and players and pathfinding NPCs get through the doors, loading door and breach. - Light on performance: most walls are 12-280 triangles; 9