Photoshop Tile Material Assembly

I have a set of 12 high-resolution tile photographs that I need combined into a single material map for use in 3D renders. The final texture should show the tiles laid out horizontally in a staggered pattern, preserving their original colours and surface detail—no additional colour grading or tonal tweaks are required.

Please work directly in Photoshop (or a fully compatible app) so I receive a neatly organised, layered PSD alongside a flattened TIFF or PNG. The PSD should let me toggle individual tiles or make minor tweaks to grout lines later.

Key points to keep in mind:
• Exact horizontal, staggered alignment throughout the canvas
• Consistent scale across all 12 tiles so seams match when the texture is tiled in a render engine
• Clean, non-destructive layer structure (smart objects preferred)
• Final output large enough for close-up product shots—around 4096 × 4096 px or higher

Once delivered, I’ll run a quick tile test in my renderer; if everything repeats seamlessly and colours match the source photos, the job is done.