Block Wall Construction Detail

Franklin road meridian id 83642 5902 phone.

Block wall construction detail.

Standard cmu block wall detail 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. Walls fences over four 4 feet require a zoning review and approval. Construction details and technical information for designing and building with concrete masonry units or cmus. Alternating bends grade horizontal continuous in footing grade all cells containing rebar shall be grouted solid.

1 4 horizontal bar in continuous bond beam at top course horizontal joint reinforcing 16 o c. Wall construction is located on a site with slope steeper than 10 with adverse soil conditions e g expansive soil. This tek contains details for various types of concrete masonry foundation walls with accompanying text as appropriate. Full array of drawings and technical informaiton provided by ncma along with san diego specific details for cmu freestanding and retaining walls.

Walls fences not over seven 7 feet shall not require a building review and approval. The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line. Follow the block manufacturer s instructions for wall height limits. 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.

Once you ve got your base set up it just takes some finesse in building the wall up and turning corners. Whether you re building a retaining wall or just need some extra privacy a cinder block wall is an affordable way to get the job done. Vertical 4 vertical bar 32 o c. Six inch cmu block wall detail cmu block wall every other block turned n t s.

Foundation all concrete block walls must rest on a sturdy foundation of poured concrete. Concrete block units shall conform to astm c90. 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. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.