Rialto, CA Fence Regulations: Material Restrictions (2026)
Key Facts
- Residential zones
- No barbed or razor wire
- Fences under 6 feet
- No sharp wire or points on top
- Design-reviewed projects
- No chain link or wood fencing
- Block walls
- 8-inch slumpblock or 6-inch precision minimum
- New dwelling street frontages
- Decorative block wall required
Summary
Barbed wire and razor wire are prohibited in all Rialto residential zones, and no sharp points may top any fence under six feet. City design standards also require decorative, durable materials and restrict undersized concrete block.
NOTES: 1. MINIMUM BLOCK WIDTH IS 8" FOR SLUMPBLOCK AND 6" FOR PRECISION BLOCK. 6" WIDE SLUMPBLOCK AND 4" WIDE PRECISION BLOCK ARE NOT PERMITTED. 2. THIS STANDARD CONCRETE BLOCK WALL SHALL NOT BE USED TO RETAIN ANY EARTH / DIRT. 3. TYPE & COLOR OF BLOCK AND/OR FINISH SHALL MATCH AND/OR BE COMPATIBLE WITH THE SURROUNDING PROPERTIES. 4. NO CONCRETE OR GROUT TO BE PLACED PRIOR TO INSPECTION AND APPROVAL BY THE CITY. 5. ALL CELLS AND SPACES CONTAINING REINFORCING BARS SHALL BE FILLED SOLIDLY WITH GROUT. 6. PERMITS ARE REQUIRED FOR WALLS HIGHER THAN 42". 7. A SIGNED BLOCK WALL OR FENCE AGREEMENT IS REQUIRED IF ANY PORTION OF THE WALL CROSSES A PROPERTY LINE.
Full Breakdown
Rialto Municipal Code Section 18.56.030(C) bans barbed or razor wire in any residential zone and prohibits sharp wire or points projecting from the top of any fence or wall under six feet. For projects subject to design review, Section 18.61.170 (Ord. 1382, 2006) disallows barbed wire, razor wire, chain link, and wood fencing, and Section 18.61.180 requires residential walls and fences of decorative block, stucco, masonry block, slump stone, or similarly durable material, with block walls along street frontages and wrought iron gates. The city's Development Services block wall standard requires minimum 8-inch slumpblock or 6-inch precision block with finishes compatible with surrounding properties.
Violations & Fines
Community Compliance can require removal of prohibited materials. Violations are punishable under Section 1.16.010 as infractions ($100 to $500 fines) or misdemeanors (up to $1,000 and six months); each day counts separately.
Frequently Asked Questions
Is barbed wire legal on a residential fence in Rialto?
Can I build a wood or chain link fence in Rialto?
Sources & Official References
Other rules in Rialto
California rules heatmap·Compare Rialto to another location·View the California fence regulations overview
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Material Restrictions in Nearby Cities
How other cities in San Bernardino County handle material restrictions.