Download Floor Joist Spacing PNG . What is the proper placement? Properly spacing floor joists when framing an addition or whole structure is largely a factor of building codes. 6 4 8 Timber Joist Spans Nhbc Standards 2021 Nhbc Standards 2021 from mk0nhbcstandardvemac.kinstacdn.com Directly above the joist space is the kitchen and breakfast area which will be tiled. The occupants of a building want peace and quiet. We have no relationship with advertisers, products. Load placed on the floor. 2x10 to 15 feet and 2x12 to 18 feet. My concern really is floor flex which would quickly lead to cracked tile and grout. The answer involves designing cfs floors with greater mass. Can span about 26 feet! Source: retratosporivan.co The floor joist spacing of rafters depends on the length and height of the roof. Source: d1psc0ikz8bj50.c...