Maximum Slope For A Garage Floor

Aci 117 90 st andard specifications for tolerances for concrete construction and materials gives a level alignment tolerance of 3 4 inch for top of slab elevation of slabs on grade.

Maximum slope for a garage floor.

Here is the citation from the international residential code irc. Of ramp two end bays of48 feet and two spandrel widths of one foot. The building code requires that a garage floor be sloped towards the door but does not specify a minimum slope. For a garage with two way traffic there is typically 180 feet of ramp two end bays of 28 feet and two spandrel widths of 1 foot.

Determining the angle of your floor s slope provides a simple method to level work surfaces in the garage. The apron extends the width of the garage floor. For improved efficiency the garage with two way traffic with end bay parking must have 180 ft. If the floor is hand screeded and isn t re leveled during the finishing process you may get a few minor birdbaths with the 1 8 ft slope but nothing a quick squeegie won t fix.

Determine the ramp slope based on the requirements of the structure through los considerations and the expressed purpose of the garage. 1 attach one end of the string level to the wall of the garage furthest from the main door. It is usually 1 8 to 1 4 per foot. The apron s length depends on the required slope more length is needed to reduce steep slopes.

The apron in front of the garage smooths the transition for the vehicle from the driveway into the garage and acts as a barrier to debris and moisture. Minimums are limited to 8 feet 2 inches for van accessible structures and 7 feet for standard parking entrances.