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Vertical and Horizontal Steel Reinforcement for Below-grade Walls ^{Footnote (1)} ^{Footnote (2)}
Wall Height (m)	Backfill Height (m)	Max. Spacing for Vertical Reinforcement (mm)			Max. Spacing for Horizontal Reinforcement (mm)
Wall Height (m)	Backfill Height (m)	150-mm wall	200-mm wall	250-mm wall	150-mm wall	200-mm wall	250-mm wall
2.44	1.22	10M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.52	10M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.82	10M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.12	10M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.05	1.22	10M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.52	10M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.82	10M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.12	15M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.42	15M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.74	15M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.66	1.22	10M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.52	10M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	1.82	10M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.12	15M @ 300	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.52	15M @ 150	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
	2.82	–	–	10M @ 150	–	–	15M @ 400
	3.12	–	–	10M @ 150	–	–	15M @ 400
	3.35	–	–	10M @ 150	–	–	15M @ 400

Notes:

Footnote 1

Table 4.2.1.1 is based on the following assumptions:

The design is applicable to all seismic zones.
Maximum building width is 12.2 m.
Maximum building length is 24.4 m.
Maximum floor clear span is 6.1 m.
Maximum roof clear span is 12.2 m with supports at mid-point.
Maximum number of stories above grade is two (2).
Maximum number of stories below grade is one (1).
Roof slope from flat to maximum 1:1.
Roof dead load is 0.72 kPa.
Floor dead load is 0.72 kPa.
Floor live load is 1.92 kPa.
Snow load is 4.44 kPa.
Surcharge load is 2.4 kPa.
Loads include earth pressure and surcharge loads, plus gravity load. Gravity load assumes 2 ICF storeys and a wood roof frame.
Below-grade walls are assumed to support a brick veneer with a maximum height of 7 320 mm, with an eccentricity of 220 mm for the 150-mm thick wall system and 245 mm for the 200-mm thick wall system.
Design earth pressure of 960 kg/m³ (equivalent fluid density).
All above-grade walls are assumed to be on top of the ICF foundation walls.
Openings in the foundation wall must be less than 1 220 mm in width and the total openings in the wall must be less than 25% of the wall area.
When the length of the wall between windows is less than the average length of the windows, the wall is considered unsupported and additional engineering is required.
Reinforcing bars must be hard grade deformed bars conforming to CSA G30.18-09, "Carbon Steel Bars for Concrete Reinforcement," Grade 400. Specified yield strength of reinforcement, f_y, is 400 MPa.
Wall design detailing bends, placement, spacing, splicing and protection of reinforcement must be in accordance with CSA A23.3-04 (R2010), "Design of Concrete Structures."
Minimum concrete cover for vertical reinforcement is 38 mm from the inside face (tension face) of concrete.
Minimum concrete cover for horizontal reinforcement is 28 mm from the inside face of concrete.
Two 10M bars must be placed around all openings and extend 600 mm (24 in.) beyond each side of the openings.
Minimum 28-day concrete yield strength of 20 MPa. Mix designs in accordance with the manufacturer's recommendations.
Concrete must be allowed to cure for a minimum of seven days prior to backfilling.
Below-grade walls are considered to be supported by the floor system at the top.
All materials and workmanship must conform to the requirements of the NBC 2010 including any Revisions and Errata that have been released as of the issue date of this table.

Return to footnote 1 referrer

Footnote 2

Table cells without a value indicate that the spacing is not feasible with respect to the proposed backfill height.

Return to footnote 2 referrer

Vertical and Horizontal Steel Reinforcement for Above-grade Walls^{Footnote (1)}
Wall Height (m)	Max. Spacing for Vertical Reinforcement (mm)			Max. Spacing for Horizontal Reinforcement (mm)
Wall Height (m)	150-mm wall	200-mm wall	250-mm wall	150-mm wall	200-mm wall	250-mm wall
Single-storey concrete construction supporting a wood-frame roof structure
2.44	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.05	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.66	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
Ground floor concrete construction supporting a second storey wood frame and wood-frame roof structure
2.44	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.05	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.66	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
Ground floor concrete construction supporting a second storey concrete construction and a wood-frame roof structure
2.44	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.05	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400
3.66	10M @ 450	10M @ 300	10M @ 150	15M @ 400	15M @ 400	15M @ 400

Note:

Footnote 1

Table 4.2.1.2 is based on the following assumptions:

The design is applicable to seismic zones up to S_a(0.2) = 1.2 for Site Class C.
Applicable to a maximum wind pressure of 3.18 kPa.
For allowable building dimensions and floor and roof clear spans, see Note 1 to Table 4.2.1.1.
For assumed loads, see Note 1 to Table 4.2.1.1.
For concrete and steel material properties, see Note 1 to Table 4.2.1.1.
Minimum concrete cover for vertical reinforcement is 38 mm from the inside face (tension face) of concrete.
Minimum concrete cover for horizontal reinforcement is 28 mm from the inside face of concrete.
A minimum of two 10M bars should be placed around all openings and must extend at least 600 mm beyond each corner of the opening.

Return to footnote 1 referrer

Minimum Steel Reinforcement of Lintels with a 250-mm Core^{Footnote (1)} ^{Footnote (2)}
Opening Width (mm)	Factored Uniformly Distributed Load (kN/m)
	2.0		5.0		10.0		15.0		20.0		25.0		30.0
	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)
1 000	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0
1 500	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	55
2 000	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	167	1-15M	305
2 500	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	208	1-15M	417	1-20M	555
3 000	1-15M	0	1-15M	0	1-15M	0	1-15M	111	1-15M	458	1-20M	667	1-20M	805
3 500	1-15M	0	1-15M	0	1-15M	0	1-15M	361	1-20M	708	2-15M	917	1-25M	1055
4 000	1-15M	0	1-15M	0	1-15M	0	1-20M	611	2-15M	958	1-25M	1167	2-20M	1305
4 500	1-15M	0	1-15M	0	1-20M	166	2-15M	861	1-25M	1208	2-20M	1417	2-25M	1555
5 000	1-15M	0	1-15M	0	1-20M	416	1-25M	1111	2-20M	1458	2-25M	1667	2-25M	1805

Minimum Steel Reinforcement of Lintels with a 200-mm Core^{Footnote (1)} ^{Footnote (2)}
Opening Width (mm)	Factored Uniformly Distributed Load (kN/m)
	2.0		5.0		10.0		15.0		20.0		25.0		30.0
	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)
1 000	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0
1 500	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	83	1-15M	194
2 000	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	167	1-15M	333	1-15M	444
2 500	1-15M	0	1-15M	0	1-15M	0	1-15M	139	1-15M	417	1-15M	583	1-20M	694
3 000	1-15M	0	1-15M	0	1-15M	0	1-15M	389	1-15M	667	1-20M	83	2-15M	944
3 500	1-15M	0	1-15M	0	1-15M	83	1-15M	639	1-20M	917	2-15M	1083	1-25M	1194
4 000	1-15M	0	1-15M	0	1-15M	333	1-20M	889	2-15M	1167	1-25M	1333	2-20M	1444
4 500	1-15M	0	1-15M	0	1-20M	583	2-15M	1139	1-25M	1417	1-30M	1583	2-25M	1694
5 000	1-15M	0	1-15M	0	1-20M	833	1-25M	1389	1-30M	1667	2-25M	1833	–	–

Minimum Steel Reinforcement of Lintels with a 150-mm Core^{Footnote (1)} ^{Footnote (2)}
Opening Width (mm)	Factored Uniformly Distributed Load (kN/m)
	2.0		5.0		10.0		15.0		20.0		25.0		30.0
	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)	Bottom Steel	Stirrup End Dist. (mm)
1 000	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	83
1 500	1-15M	0	1-15M	0	1-15M	0	1-15M	0	1-15M	125	1-15M	250	1-15M	333
2 000	1-15M	0	1-15M	0	1-15M	0	1-15M	167	1-15M	375	1-15M	500	1-15M	583
2 500	1-15M	0	1-15M	0	1-15M	0	1-15M	417	1-15M	625	1-15M	750	1-20M	833
3 000	1-15M	0	1-15M	0	1-15M	250	1-15M	667	1-15M	875	1-20M	1 000	2-15M	1 083
3 500	1-15M	0	1-15M	0	1-15M	500	1-20M	917	1-20M	1125	2-15M	1 250	1-25M	1 333
4 000	1-15M	0	1-15M	0	1-15M	750	1-20M	1 167	2-15M	1375	1-25M	1 500	–	–
4 500	1-15M	0	1-15M	0	1-20M	1 000	2-15M	1 417	1-25M	1625	–	–	–	–
5 000	1-15M	0	1-15M	0	1-20M	1 250	1-25M	1 667	–	–	–	–	–	–

Notes:

Footnote 1

Tables 4.2.1.3(a) to 4.2.1.3(c) are based on the following assumptions:

The factored uniformly distributed load includes live and dead loads, not including the weight of the lintel.
The minimum height of the lintel is 200 mm for Table 4.2.1.3(a); 419 mm for Table 4.2.1.3(b); and 629 mm for Table 4.2.1.3(c).
Stirrups are single leg fabricated from 10M bars spaced at 100 mm on centre (o.c) for Table 4.2.1.3(a); 200 mm o.c for Table 4.2.1.3(b); and 300 mm o.c for Table 4.2.1.3(c).
Lintel reinforcing is located at the bottom of the lintel and projects 600 mm into the lintel support on each side.
Specified compressive strength of concrete, @ 28 days f'_c, is 20 MPa.
Specified yield strength of reinforcement, f_y, is 400 MPa.
A minimum of two 10M bars should be placed around all openings and must extend at least 600 mm beyond each corner of the opening.

Return to footnote 1 referrer

Footnote 2

Table cells without a value indicate that the load is not feasible. Engineering input is required.

Return to footnote 2 referrer

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.35 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
18	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	1.94	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.45 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	1.87	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	1.87	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	2.18	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
18	6	1.83	1.83	1.83	2.49	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.87	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.87	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.87	1.87	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.87	2.18	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.87	2.49	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.55 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.90	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	2.29	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	2.67	1.83	1.83	1.83	1.91	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	3.05	1.83	1.83	1.83	2.18	1.83	1.83	1.83	1.83
18	6	1.83	1.83	1.83	2.29	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	2.29	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.90	2.29	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	2.29	2.29	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	2.29	2.67	1.83	1.83	1.83	1.91	1.83	1.83	1.83	1.83
	24	1.83	1.83	2.29	3.05	1.83	1.83	1.83	2.18	1.83	1.83	1.83	1.83

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.65 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	2.25	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	2.70	1.83	1.83	1.83	1.93	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	3.15	1.83	1.83	1.83	2.26	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	3.60	1.83	1.83	1.83	2.58	1.83	1.83	1.83	1.83
18	6	1.83	1.83	1.83	2.70	1.83	1.83	1.83	1.93	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	2.70	1.83	1.83	1.83	1.93	1.83	1.83	1.83	1.83
	15	1.83	1.83	2.25	2.70	1.83	1.83	1.83	1.93	1.83	1.83	1.83	1.83
	18	1.83	1.83	2.70	2.70	1.83	1.83	1.93	1.93	1.83	1.83	1.83	1.83
	21	1.83	1.83	2.70	3.15	1.83	1.83	1.93	2.26	1.83	1.83	1.83	1.83
	24	1.83	1.83	2.70	3.60	1.83	1.83	1.93	2.58	1.83	1.83	1.83	1.93

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.75 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	2.08	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	2.60	1.83	1.83	1.83	1.86	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.23	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	3.64	1.83	1.83	1.83	2.60	1.83	1.83	1.83	1.95
	24	1.83	2.08	1.83	4.15	1.83	1.83	1.83	2.98	1.83	1.83	1.83	2.23
18	6	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.23	1.83	1.83	1.83	1.83
	12	1.83	1.83	2.08	3.12	1.83	1.83	1.83	2.23	1.83	1.83	1.83	1.83
	15	1.83	1.83	2.60	3.12	1.83	1.83	1.86	2.23	1.83	1.83	1.83	1.83
	18	1.83	1.83	3.12	3.12	1.83	1.83	2.23	2.23	1.83	1.83	1.83	1.83
	21	1.83	1.83	3.12	3.64	1.83	1.83	2.23	2.60	1.83	1.83	1.83	1.95
	24	1.83	2.08	3.12	4.15	1.83	1.83	2.23	2.98	1.83	1.83	1.83	2.23

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.85 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	2.08	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	2.60	1.83	1.83	1.83	2.11	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.53	1.83	1.83	1.83	1.90
	21	1.83	2.06	1.83	3.64	1.83	1.83	1.83	2.95	1.83	1.83	1.83	2.21
	24	1.83	2.35	1.83	4.15	1.83	1.83	1.83	3.37	1.83	1.83	1.83	2.53
18	6	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.53	1.83	1.83	1.83	1.90
	12	1.83	1.83	2.35	3.12	1.83	1.83	1.83	2.53	1.83	1.83	1.83	1.90
	15	1.83	1.83	2.94	3.12	1.83	1.83	2.11	2.53	1.83	1.83	1.83	1.90
	18	1.83	1.83	3.53	3.12	1.83	1.83	2.53	2.53	1.83	1.83	1.90	1.90
	21	1.83	2.06	3.53	3.64	1.83	1.83	2.53	2.95	1.83	1.83	1.90	2.21
	24	1.47	2.35	3.53	4.15	1.83	1.83	2.53	3.37	1.83	1.83	1.90	2.53

Minimum Solid Shear Wall Length for Wind Pressure Equal to 0.95 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.97	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.97	2.63	1.83	1.83	1.83	1.88	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.97	3.29	1.83	1.83	1.83	2.36	1.83	1.83	1.83	1.83
	18	1.83	1.97	1.97	3.95	1.83	1.83	1.83	2.83	1.83	1.83	1.83	2.12
	21	1.83	2.30	1.97	4.60	1.83	1.83	1.83	3.30	1.83	1.83	1.83	2.47
	24	1.83	2.63	1.97	5.26	1.83	1.88	1.83	3.77	1.83	1.83	1.83	2.82
18	6	1.83	1.97	1.83	3.95	1.83	1.83	1.83	2.83	1.83	1.83	1.83	2.12
	12	1.83	1.97	2.63	3.95	1.83	1.83	1.88	2.83	1.83	1.83	1.83	2.12
	15	1.83	1.97	3.29	3.95	1.83	1.83	2.36	2.83	1.83	1.83	1.83	2.12
	18	1.97	1.97	3.95	3.95	1.83	1.83	2.83	2.83	1.83	1.83	2.12	2.12
	21	1.97	2.30	3.95	4.60	1.83	1.83	2.83	3.30	1.83	1.83	2.12	2.47
	24	1.97	2.63	3.95	5.26	1.83	1.88	2.83	3.77	1.83	1.83	2.12	2.82

Minimum Solid Shear Wall Length for Wind Pressure Equal to 1.05 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	2.18	2.91	1.83	1.83	1.83	2.08	1.83	1.83	1.83	1.83
	15	1.83	1.83	2.18	3.64	1.83	1.83	1.83	2.60	1.83	1.83	1.83	1.95
	18	1.83	2.18	2.18	4.36	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.34
	21	1.83	2.54	2.18	5.09	1.83	1.83	1.83	3.65	1.83	1.83	1.83	2.73
	24	1.83	2.91	2.18	5.82	1.83	2.08	1.83	4.17	1.83	1.83	1.83	3.12
18	6	1.83	2.18	1.83	4.36	1.83	1.83	1.83	3.12	1.83	1.83	1.83	2.34
	12	1.83	2.18	2.91	4.36	1.83	1.83	2.08	3.12	1.83	1.83	1.83	2.34
	15	1.83	2.18	3.64	4.36	1.83	1.83	2.60	3.12	1.83	1.83	1.95	2.34
	18	2.18	2.18	4.36	4.36	1.83	1.83	3.12	3.12	1.83	1.83	2.34	2.34
	21	2.18	2.54	4.36	5.09	1.83	1.83	3.12	3.65	1.83	1.83	2.34	2.73
	24	2.18	2.91	4.36	5.82	1.83	2.08	3.12	4.17	1.83	1.83	2.34	3.12

Minimum Solid Shear Wall Length for Wind Pressure Equal to 1.25 kPa^{Footnote (1)}
Length (m)	Width (m)	150-mm-thick Wall (mm)				200-mm-thick Wall (mm)				250-mm-thick Wall (mm)
		2^nd floor		1^st floor		2^nd floor		1^st floor		2^nd floor		1^st floor
		Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.	Short dir.	Long dir.
9	6	1.83	1.83	1.83	2.60	1.83	1.83	1.83	1.86	1.83	1.83	1.83	1.83
	12	1.83	1.83	2.60	3.46	1.83	1.83	1.86	2.48	1.83	1.83	1.83	1.86
	15	1.83	2.16	2.60	4.33	1.83	1.83	1.86	3.10	1.83	1.83	1.83	2.32
	18	1.83	2.60	2.60	5.19	1.83	1.86	1.86	3.72	1.83	1.83	1.83	2.79
	21	1.83	3.03	2.60	6.06	1.83	2.17	1.86	4.34	1.83	1.83	1.83	3.25
	24	1.83	3.46	2.60	6.92	1.83	2.48	1.86	4.96	1.83	1.86	1.83	3.72
18	6	1.83	2.60	1.83	5.19	1.83	1.86	1.83	3.72	1.83	1.83	1.83	2.79
	12	1.83	2.60	3.46	5.19	1.83	1.86	2.48	3.72	1.83	1.83	1.86	2.79
	15	2.16	2.60	4.33	5.19	1.83	1.86	3.10	3.72	1.83	1.83	2.32	2.79
	18	2.60	2.60	5.19	5.19	1.86	1.86	3.72	3.72	1.83	1.83	2.79	2.79
	21	2.60	3.03	5.19	6.06	1.86	2.17	3.72	4.34	1.83	1.83	2.79	3.25
	24	2.60	3.46	5.19	6.92	1.86	2.48	3.72	4.96	1.83	1.86	2.79	3.72

Minimum Solid Wall Length for S_a(0.2) ≤ 0.2^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.83	1.83	1.83	1.83	1.83
	18	1.83	1.83	1.83	1.83	1.83	1.83
	21	1.83	1.83	1.83	1.83	1.83	1.83
	24	1.83	1.83	1.83	1.83	1.83	1.83
18	6	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.93	1.83	1.83	1.83	1.83
	18	1.83	2.18	1.83	1.83	1.83	1.83
	21	1.83	2.43	1.83	2.00	1.83	1.83
	24	1.83	2.68	1.83	2.20	1.83	1.86

Minimum Solid Wall Length for S_a(0.2) = 0.3^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	1.83	1.83	1.83	1.83	1.83
	15	1.83	1.84	1.83	1.83	1.83	1.83
	18	1.83	2.11	1.83	1.83	1.83	1.83
	21	1.83	2.38	1.83	2.00	1.83	1.83
	24	1.83	2.64	1.83	2.22	1.83	1.91
18	6	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	2.48	1.83	2.07	1.83	1.83
	15	1.83	2.85	1.83	2.37	1.83	2.02
	18	1.83	3.22	1.83	2.66	1.83	2.26
	21	2.01	3.59	1.83	2.96	1.83	2.51
	24	2.22	3.96	1.83	3.25	1.83	2.75

Minimum Solid Wall Length for S_a(0.2) = 0.45^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	1.83	1.83	1.83	1.83	1.83
	12	1.83	2.25	1.83	1.91	1.83	1.83
	15	1.83	2.63	1.83	2.22	1.83	1.92
	18	1.83	3.01	1.83	2.54	1.83	2.19
	21	1.83	3.40	1.83	2.86	1.83	2.46
	24	2.04	3.78	1.83	3.17	1.83	2.73
18	6	1.83	2.48	1.83	2.12	1.83	1.84
	12	1.93	3.54	1.83	2.96	1.83	2.54
	15	2.24	4.07	1.83	3.38	1.83	2.89
	18	2.55	4.60	2.07	3.81	1.83	3.23
	21	2.87	5.13	2.32	4.23	1.93	3.58
	24	3.18	5.66	2.56	4.65	2.13	3.93

Minimum Solid Wall Length for S_a(0.2) = 0.66^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	2.07	1.83	1.83	1.83	1.83
	12	1.83	3.14	1.83	2.67	1.83	2.31
	15	1.96	3.68	1.83	3.11	1.83	2.69
	18	2.26	4.21	1.87	3.55	1.83	3.06
	21	2.56	4.75	2.11	4.00	1.83	3.44
	24	2.86	5.29	2.36	4.44	2.00	3.82
18	6	1.83	3.47	1.83	2.96	1.93	2.58
	12	2.70	4.96	2.22	4.14	1.87	3.55
	15	3.14	5.70	2.56	4.73	2.15	4.04
	18	3.58	6.44	2.90	5.33	2.43	4.52
	21	4.01	7.18	3.24	5.92	2.71	5.01
	24	4.45	7.92	3.59	6.51	2.98	5.50

Minimum Solid Wall Length for S_a(0.2) = 0.75^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	2.22	1.83	1.91	1.83	1.83
	12	1.83	3.37	1.83	2.86	1.83	2.48
	15	2.11	3.95	1.83	3.34	1.83	2.89
	18	2.43	4.53	2.01	3.82	1.83	3.29
	21	2.75	5.10	2.27	4.29	1.93	3.69
	24	3.07	5.68	2.53	4.77	2.15	4.10
18	6	1.96	3.73	1.83	3.18	1.83	2.77
	12	2.90	5.32	2.38	4.45	2.01	3.81
	15	3.37	6.12	2.75	5.08	2.31	3.34
	18	3.84	6.92	3.11	5.72	2.61	4.86
	21	4.31	7.71	3.48	6.35	2.91	5.38
	24	4.78	8.51	3.85	6.99	3.20	5.91

Minimum Solid Wall Length for S_a(0.2) = 0.94^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	2.78	1.83	2.39	1.83	2.09
	12	2.24	4.23	1.87	3.59	1.83	3.11
	15	2.64	4.95	2.19	4.19	1.87	3.62
	18	3.04	5.67	2.52	4.78	2.14	4.12
	21	3.44	6.40	2.85	5.38	2.42	4.63
	24	3.84	7.12	3.17	5.98	2.69	5.14
18	6	2.45	4.68	2.06	3.99	1.83	3.47
	12	3.63	6.67	2.98	5.58	2.52	4.78
	15	4.22	7.67	3.44	6.37	2.89	5.43
	18	4.81	8.76	3.90	7.17	3.27	6.09
	21	5.40	9.67	4.36	7.96	3.64	6.75
	24	5.99	10.66	4.83	8.76	4.02	7.40

Minimum Solid Wall Length for S_a(0.2) = 1.2^{Footnote (1)} and Type D Soil
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	1.83	3.49	1.83	3.00	1.83	2.62
	12	2.81	5.30	2.34	4.50	2.00	3.90
	15	3.31	6.21	2.75	5.25	2.35	4.53
	18	3.8	7.11	3.16	6.00	2.69	5.17
	21	4.31	8.02	3.57	6.47	3.03	5.80
	24	4.82	8.92	3.97	7.49	3.37	6.44
18	6	3.07	5.86	2.58	5.00	2.22	4.35
	12	4.55	8.36	3.74	6.99	3.16	5.99
	15	5.29	9.61	4.32	7.99	3.63	6.81
	18	6.03	10.86	4.89	8.98	4.10	7.63
	21	6.77	12.11	5.47	9.98	4.56	8.45
	24	7.51	13.36	6.05	10.98	5.03	9.28

Minimum Solid Wall Length for S_a(0.2) = 2.3^{Footnote (1)} and Type D Soil^{Footnote (2)}
Width (m)	Length (m)	Wall Thickness (mm)
		150 mm		200 mm		250 mm
		2^nd floor	1^st floor	2^nd floor	1^st floor	2^nd floor	1^st floor
12	6	–	–	2.71	5.32	2.35	4.66
	12	–	–	4.16	7.98	3.56	6.91
	15	–	–	–	–	4.16	8.04
	18	–	–	–	–	–	–
	21	–	–	–	–	–	–
	24	–	–	–	–	–	–
18	6	–	–	–	–	–	–
	12	–	–	–	–	5.60	10.63
	15	–	–	7.66	14.18	6.44	12.09
	18	–	–	8.68	15.94	7.27	13.55
	21	–	–	9.71	17.71	8.10	15.00
	24	–	–	–	–	8.93	16.46

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