402 - GENERAL - MASONRY RESOURCES

SECTION 402 – GENERAL

SECTION 402 – GENERAL
402.1 Design of footings and foundations.

402.1.1 General.
All exterior walls, bearing walls and columns shall be supported on concrete or masonry footings of sufficient design to safely support the loads imposed as determined from the character of the soil.

402.1.2 Minimum size.
Minimum sizes for footings shall be as set forth in Table R403.1(3) of the International Residential Code and Figures 402(1) through (4) modified as follows:

Spread footings shall be at least 8 inches (203 mm) in thickness.
Except for monolithic slab-on-grade foundations, all exterior footings shall be at least 2 inches (51 mm) wider on each side than the wall resting on the footing and shall not extend past the wall more than the thickness of the footing.
Monolithic slab-on-grade interior foundations may be used in conjunction with stem wall exterior foundations.
Where minimum footing width is 12 inches, use of a single wythe of solid or fully grouted 12 inch (305 mm) nominal masonry units is permitted.

SECTION 402 – GENERAL
402.1 Design of footings and foundations.

402.1.1 General.
This section addresses foundation design and construction details for foundations for the concrete masonry walled buildings of the configurations permitted In Chapter 1 of ICC 600.

402.1.2 Minimum size.
The International Residential Code (IRC) tables for masonry buildings are adequate for both bearing and uplift resistance as modified by the ICC 600, subject to the additional limits of Section 402.1.3 of ICC 600.