Residential Garage Floor Loading

Minimum design loads for buildings and other structures location uniform load psf kn m2 apartments see residential access floor systems office use.

Residential garage floor loading. 0 9d 1 0e effect or 0 9 when resisting the load when permanent. 2attic loads may be included in the floor live load but a 10 psf attic load is typically used only to size ceiling joists adequately for access purposes. Creep deflection could cause cracking in the concrete floor and or ponding in the middle of the garage floor. However if the attic is intended for storage the attic live load or some portion should also be considered for the design of.

First floor live loads have higher requirements than second floor live loads 40 pounds per square foot vs. The ontario building code full and partial loading 4 1 5 3. 0 9d 1 0w a load factor of 1 6 when adding to load 7. Full and partial loading 1 the uniformly distributed live load shall be not less than the value listed in table 4 1 5 3 which may be reduced as provided in article 4 1 5 8 applied uniformly over the entire area or on any portions of the area whichever produces the most critical effects in the members concerned.

Floors in garages or portions of buildings used for the storage of motor vehicles shall be designed for the uniformly distributed live loads of table 1607 1 or the following concentrated loads. This 3 000 pound concentrated load if it was based upon beams every 12 feet and joists every two feet would equate out to a uniform live load requirement of 125 psf. A room used solely for sleeping might need to carry only 30 psf whereas a garage floor over a basement would need 50 psf or higher. Garage floor parking surfaces must be made from approved noncombustible and nonabsorbent materials.

Note that some of the engineered wood product design software on the market uses the commercial code. To check the creep deflection using forte use case 1 and calculate the dead load deflection by taking the total. The international residential code on which most local building codes are based requires that floors in non sleeping rooms must support a minimum live load of 40 pounds per square foot and floors in sleeping rooms must be able to handle a live load of 30 pounds per square foot. Local building codes specify the minimum live load that floors must be able to bear.

An inaccessible attic space on the other hand might have a live load of only 20 psf. The dead load is often more than the live load so creep should be considered and checked in garage floor design. 1 for garages restricted to vehicles accommodating not more than nine passengers 3 000 pounds acting on an area of 4 5 inches by 4 5 inches. Minimum uniformly distributed live loads adapted from sei asce 7 10.