It depends on the design. Most units described are readily available.

Dear Krishna, Houzz is a promising platform full of many talented people. But to get any response for your query, you must provide them the proper information like- What you really want Built-up area Scope of the work like flooring, ceiling, furniture, wall paints etc. Floor plans if available Pictures of site if possible Only then professionals would be able to respond. Also you can check out my profile. Hope this helps you a bit. :)

SF Firstly, what kind of spaces Are you designing- residential, commercial etc., Which city are you located and focusing to get the client's. Cities like Hyderabad, Bangalore, Chennai have adequate workforce/labor for interior work from carpentry to false ceiling to plumbing and painting. Select a sub contractor whom is well versed with materials first., I.e hardware's required for execution. Drawings are easy but finishing is the main criteria. What materials you want to go, which brands in you want to have? Plywood, laminites, Type of glass, Tiles, Light fitting s etc. Then you can fix the Deal!!

Raju Carpenter Hyderabad 9783208756