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special notes | 4" high | 6" high | 8" high | pilasters
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Y block/chevron | miter/bond beam | miter/corner | course configurations

 

Visit our design center to see various colors and finishes.

SPECIAL NOTES

PRECISION BLOCK UNITS
Orco precision block is a structural concrete masonry material that conforms to the standards for hollow load bearing concrete masonry units as published by the Concrete Masonry Association and exceeds A.S.T.M. C-90-96 Standards and UBC Standard 21-4. All weight classifications comply with the above standards. Note: Precision block are also available in ultra light (85 lbs. Per cubic foot). See ultra light section for details.

HI-STRESS PRECISION UNITS
Hi-stress precision masonry units are made in 3,750 net P.S.I.. Grey is the stocked color; other colors and higher strengths are available upon request. Remember, there is a big difference between a 3,000 net P.S.I block and f’m of 3,000 P.S.I. so when ordering the P.S.I. of the block, be sure to select the correct value because prices do vary. For example, a 3,750 net P.S.I. block is more expensive than the standard units. For more specific information please call your nearest office.

SPECIAL EFFECT BLOCK
These units include the 505, 503, and screen block. Limited supplies are in stock. Grey is the stocked color; other colors are available. Call for more specific information.

COLOR
Every effort is made to insure color consistency by Orco Block, however, it must be understood that we are using materials from the earth and cannot control color variation in the cement and sand which may change the block color slightly from run to run. We guarantee the color only to range of color. We have a wide variety of colors from which to make your selection. There may be an additional charge for the color you select. Refer to the Price List for this information. Orco Block recommends using matching mortar when using colored precision block. Please call your architectural representative for additional information.

PRECISION BLOCK DIMENSIONS
Orco Precision Block come in 4”, 6” and 8” heights. Common practice in describing masonry units is to give the width first, the height second and the length last, followed by the descriptive name. For example, an 8x8x16 Precision block is 8 inches wide, 8 inches high and 16 inches long. These sizes are in a modular dimension and actual sizes are 3/8” less. All pertinent dimensions and minimum shell thickness are shown. Rather than repeat dimensions for each unit, the first block in each unit is dimensioned. The dimensions apply to other units in the same group. Where there are variations in the units, applicable dimensions are shown for the individual unit.

FENCE UNITS
The fence units shown here are for fences only. Note that the length is 18” long. This gives you more wall for your money. For example: a wall 100’ long and 6’ high would take 75 – 16”units for one course. 75x9 courses = 675 16” units. If using an 18” long block it takes 67 units for one course 100’ long. 67x9 courses = 603 18” units. The difference between 675 and 603 is 72 units. The savings is revealed not only in the block price but the installation labor cost. These blocks should not be used in a building. They will not work out to a module of 0” – 4 or 8” and your entire building will be off at the doors and windows.

LEGEND

BB = Bond Beam OE = Open End 1S = 1 Side
VS = Vertical Score DOE = Double Open End 2S = 2 Side

For exact configurations & dimensions of cores please consult your Architectural Representative.

 

 
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