Sources & method

• Footprint = length × width.
• Clearance = equipment dimension + 18 in (site rule of thumb; the maker’s manual wins).
• Ceiling needed = equipment height + 12 in.
• Overhead reach = your height + your measured arm reach; if you haven't measured, plan roughly your height plus about 2 feet (our planning estimate, not a measured figure).
• Floor load: divide each item's weight (plus you, if you stand or lie on it) by that item's own footprint in square feet, giving lb per sq ft, compared with the residential code's minimum of 40 lb per sq ft for most rooms and 30 for bedrooms (IRC Table R301.5; your local code may differ). This is a rough check only; concentrated and dropped loads need a structural engineer.

Public sources we rely on

• International Residential Code, Table R301.5 (minimum uniformly distributed live loads), as adopted in WAC 51-51-0301: 40 psf for areas other than sleeping areas and 30 psf for sleeping areas (local amendments vary). These are design minimums for loads spread evenly across a floor. They are not a safe rating for a loaded rack's concentrated weight; ask your landlord or a structural engineer.
• ICC Digital Codes: IRC 2018 Section R301.5: official text of the residential live-load table
• CPSC: Anchor It! furniture and TV tip-over prevention: why tall, heavy items should be anchored to the wall