Use of One-Third Bond Columbia SC

One-third bond is used whenever the length of the unit is three times the depth of the unit. This is the case with Roman, Norman, and utility modern brick units, which are nominally 12 inches long and 4 inches deep.

Palmer Construction Co Inc
(843) 762-0181
125 Oyster Point Row
Charleston, SC
 
Just 4 U Stucco Llc
(843) 849-2924
1025 Victoria Rd
Charleston, SC
 
Strictly Stucco
(843) 795-3660
1365 Fields Cir
Charleston, SC
 
Permacoat Of Charleston
(843) 852-7873
1011 Saint Andrews Blvd
Charleston, SC
 
Guaranteed Supply Co of South Carolina
(803) 217-0847
930 Whaley St
Columbia, SC
 
Mc Gee Masonry
(843) 937-8949
52 Bull St
Charleston, SC
 
Coastal Exteriors
(843) 849-0104
465 Deanna Ln
Charleston, SC
 
Superior Surfaces Of Charleston Inc
(843) 762-7912
1730 Central Park Rd
Charleston, SC
 
Lowe's Home Improvement Warehouse of Irmo
(803) 749-1272
390 Harbison Blvd
Columbia, SC
 
Stock Building Supply
(803) 788-8950
200 Flintlake Rd
Columbia, SC
 

Use of One-Third Bond

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: August 1, 2000

I have seen many masonry walls built with one-third bond instead of the traditional half bond in a running bond pattern. When is one-third bond used?

One-third bond is used whenever the length of the unit is three times the depth of the unit. This is the case with Roman, Norman, and utility modern brick units, which are nominally 12 inches long and 4 inches deep. It is also true with nonmodular units that are nominally 3 inches deep, 9 inches long, and 3 inches high. The one-third bond is needed to properly form corners, offsets, and returns at windows. In these situations, the brick units are turned 90 degrees so that the end of the brick is exposed. This will determine the bond pattern. The one-third bond gives a different appearance and a different character to the masonry wall.

It is sometimes the depth of the unit that will determine the bond pattern. The thickness of the 3-inch-deep nonmodular units is approximately 5/8 inch to 3/4 inch less than standard modular units. This makes the walls slightly lighter and can permit the use of wider cavities when, due to space constraints, the overall thickness of the wall must be minimized.

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