Walls fences not over seven 7 feet shall not require a building review and approval.
Block wall construction details.
Each file also is available for download in autocad dwg or adobe acrobat pdf file format.
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The purpose of this information bulletin is to assist owners and builders who may choose to erect simple freestanding concrete masonry unit cmu block walls using the department s standard detail.
4 6 and 8 masonry wall detail.
This section of construction details includes.
Standard cmu block wall detail.
Walls fences not over four 4 feet shall not require a permit but shall comply with all building and zoning requirements.
The following is a listing of the allan block typical details that are available.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
To download a detail click on the desired file format dwg or pdf and save the file to your computer.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.
2d blocks of architectural details different construction concrete steel metal structures composite building details composite floor slabs steel structures foundations retaining and supporting walls partition wall floors details floor slabs expansion joints joist floor slabs flat slabs stairs ramps sloped floor slabs waffle slabs special details columns pylons beams.
This information bulletin provides general requirements and specifications for the construc tion of standard cmu block walls of various height thickness or footing configurations.
Concrete mix for footing to be 1 part cement to 2 5 parts sand to 3 5 parts gravel with a maximum of 7 5 gallons of water per sack of cement minimum f c 2 500 psi.
Anatomy of a concrete block wall.
Virtually all walls built with cmus share the same elements although the application of those elements can vary considerably depending on the size shape and use of the wall.
The reader is referred to tek 3 11 concrete masonry basement wall construction tek 19 3b preventing water penetration in below grade concrete masonry walls and ncma s basement manual for more detailed design and.
All concrete block walls must rest on a sturdy foundation of poured concrete.
Concrete block units shall conform to astm c90.
Follow the block manufacturer s instructions for wall height limits.
Walls fences over four 4 feet require a zoning review and approval.
Construction shall comply with the currently adopted international building code.