APPENDIX B\
FOUNDATION DESIGN LOAD TABLES

**B-100. USE OF THE FOUNDATION DESIGN LOAD TABLES.**

**B-100.1 GENERAL.** The Foundation Design Load Tables provide design
values specific to the four conditions of foundation design: items A
thru D below. Refer to Figure B-1 for diagrams of anchorage locations
designed to resist wind or seismic forces acting on the structure, and
footing size to prevent settlement. Refer to Appendix D for a more
detailed derivation of the Foundation Design Load Tables. The four
conditions are:

**A.** The required footing area based on the allowable soil bearing
capacity under full gravity loading. The footing area is found in the
Required Effective Footing Area Tables - Part 1 (pgs. B-3 to B-32).

**B.** The required anchorage to prevent uplift and overturning (Av) -
Required Vertical Anchorage Tables - Part 2 (pgs. B-33 to B-42).

**C.** The required anchorage to prevent sliding (Ah) in the transverse
direction - Required Horizontal Anchorage Tables - Part 3 (pgs.B-43 to
B-59).

**D.** The required anchorage to prevent sliding (Ah) in the
longitudinal direction - Required Horizontal Anchorage Tables - Part 4
(pgs. B-60 to B-84).

**B-100.2. REQUIRED EFFECTIVE FOOTING AREA (Aftg).** These tables
provide the required effective footing area that will not exceed the
allowable soil bearing capacity under full gravity loading of dead load
plus live load.

**B-100.3 REQUIRED VERTICAL ANCHORAGE (Av).**

**A.** The Vertical Anchorage Table provides the required anchorage to
resist uplift due to wind suction and overturning at the perimeter
foundation wall or pier locations. Refer to Figure B-1.

**B. Assumption:** Uplift and overturning is resisted by anchorage to
the piers and/or foundation walls.

**B-100.4 REQUIRED HORIZONTAL ANCHORAGE (Ah) IN THE TRANSVERSE
DIRECTION.**

**A.** The Horizontal Anchorage Table provides the required anchorage to
prevent sliding at the short foundation shear wall locations. Refer to
Figure B-1.

**B. Assumption:** Sliding is resisted by anchorage to the short
foundation shear walls and a portion of the dead load.)

**C.** Shear walls in the manufactured home are walls that have been
designed and constructed by the manufacturer to resist lateral loads.
The home\'s shear walls transfer lateral loads to the floor frame.

**D. Assumption:** Shear walls inside the unit are reasonably close to
the location of short foundation shear walls for proper load transfer.

**B-100.5 REQUIRED HORIZONTAL ANCHORAGE (Ah) IN THE LONGITUDINAL
DIRECTION.**

**A.** The Horizontal Anchorage Table provides the required anchorage to
prevent sliding at the long foundation shear wall locations. Refer to
Figure B-1.

**B. Assumption:** Sliding is resisted by anchorage to the long
foundation shear walls and a portion of the dead load.

**C.** Shear walls in the manufactured home are walls that have been
designed and constructed by the manufacturer to resist lateral loads.
The home\'s shear walls transfer lateral loads to the floor frame.

**D. Assumption:** Shear walls inside the unit are reasonably close to
the location of long foundation shear walls for proper load transfer.

INDEX to TABLES in APPENDIX B

**Part 1 - Required Efective Footing Area (Aftg)**

Single Section **C** B-3 to B-6

Single Section **E**, **I** B-7

Multi-section **C** B-8 to B-16

Multi-Section **Cnw** B-17 to B-20

Multi-Section **E**, **I** B-21 to B-29

Multi-Section **E5**, **E6** B-30 to B-38

Multi-Section **E7** B-39 to B-47

**Part 2 - Required Vertical Anchorage - (Av)**

Single-Section **C** B-48

Single-Section **C1** B-49

Single-Section **E** B-50

Single-Section **E3** B-51

Single-Section **I** B-52

Multi-Section **C** B-53 to B-54

Multi-Section **E** B-55 to B-56

Multi-Section **E3** B-57

Multi-Section **I** B-58 to B-59

**Part 3 - Required Horizontal Anchorage -(Ah) Transverse Direction**

Single-Section **C**, **E**, **I** B-60 to B-64

Multi-Section **C**, **E**, **I** B-65 to B-80

**Part 4 - Required Horizontal Anchorage -(Ah) Longitudinal Direction**

Single-Section **C**, **E**, **I** B-81 to B-89

Multi-Section **C**, **E**, **I** B-90 to B-100