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Boral Fence Installation: The Sherman Oaks Owner’s Guide
Boral fence installation in Sherman Oaks typically runs $3,500-$9,000 for a complete residential project, depending on linear footage, terrain, and whether we’re working with Boral’s Tru-Exterior poly-ash trim boards or their full siding-and-fence integrated systems. We stock Boral-compatible fasteners, post caps, and trim components on our Sherman Oaks trucks, and most fence installation or replacement jobs start within a week of the written quote. Most Sherman Oaks homeowners first notice trouble when fence boards start cupping or the bottom rail shows rot where sprinkler spray hits daily, especially on the north-facing lots near the Santa Monica Mountains where morning fog lingers.
Which Boral Models This Applies To
Boral’s fence-adjacent products fall into two families that we regularly handle in Sherman Oaks: the Tru-Exterior line, a poly-ash composite sold in 5/4 x 6 and 1 x 6 boards, and the earlier Boral Truexterior trim used as fascia and rail stock on custom fence builds from roughly 2012 to 2019. The critical compatibility gotcha is fastener chemistry: Tru-Exterior’s high mineral content corrodes standard zinc-coated screws in 18-24 months. We use Simpson Strong-Tie SDWS Timber screws or Starborn Pro Plug systems with stainless steel, which Boral’s technical bulletin 2018-4 specifies for marine-adjacent and high-spray zones.
To identify your board series, check the back face for the embossed “Boral” logo and a four-digit date code. Pre-2017 stock may be Truexterior without the hyphen; post-2017 is Tru-Exterior with the mineral-core formulation that resists rot but demands the upgraded fastener spec. We carry both fastener types and can match either generation. Rowan Construction Group Sherman Oaks is an independent service provider, not affiliated with Boral.
Signs Your Boral Fence Installation Is Failing

- Board cupping with the concave face toward the house. This happens when the fence faces afternoon sun on one side and irrigated soil on the other. Boral’s poly-ash resists moisture absorption better than wood, but uneven drying still stresses the board. In Sherman Oaks, we see this pattern most on east-west running fences in the flatlands south of Ventura Boulevard where sprinklers run daily.
- Soft or punky bottom rails within 6 inches of grade. Even Boral’s rot-resistant material fails when installed with inadequate clearance from soil or concrete splash. Code calls for 2 inches minimum; we spec 4 inches on Sherman Oaks jobs because of the clay-heavy soil that holds moisture against the rail.
- Fastener heads popping proud or rust-streaked. The zinc-coated screw corrosion we mentioned shows as orange bloom around the fastener hole. Left alone, the board loosens and wind load cracks it at the fastener line. We see this on about one in three Boral fence repairs we bid in the Valley.
- Gate sagging or latch misalignment. Boral boards are heavier than cedar, roughly 2.1 pounds per linear foot for 5/4 x 6. A gate framed with standard 2x4s and no diagonal bracing will sag in 12-18 months. We upgrade gate frames to 4×4 posts with adjustable steel tension rods.
- Post movement or lean exceeding 2 inches at the top. Sherman Oaks has expansive clay soils that shrink and swell with winter rains. A post set in a standard 12-inch diameter hole without drainage rock will heave. We backfill with 3/4-inch crushed gravel and tamp in lifts, which has held posts plumb through three wet seasons on our tracked jobs.
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Boral fence installation in Sherman Oaks runs $3,500-$9,000 for most residential projects, with the spread driven by three factors: linear footage (most Sherman Oaks lots need 80-140 linear feet for perimeter privacy), terrain slope (retaining-wall integration adds $800-$2,400), and whether we’re matching existing Boral stock or switching from a failed wood fence to new Boral boards.
| Component | Price Range |
|---|---|
| Boral Tru-Exterior boards, per linear foot installed | $28-$42 |
| Pressure-treated 4×4 posts, set and plumbed | $85-$140 each |
| Stainless fastener upgrade (specified hardware) | $2.80-$4.50 per square foot |
| Gate with steel frame and Boral infill | $1,200-$2,800 |
| Post excavation in rocky or clay soil | $45-$85 per post |
Every quote is a flat written price with line-item breakdown, delivered before work starts under Clause 1 of The Haven Standard. The 365-Day Done Right Promise covers labor and materials; board defects beyond our control are handled through Boral’s 25-year limited warranty, which we document and register on your behalf. No change order proceeds without your signature, which is the discipline that has kept our projects within a few percent of the agreed number since 2007.
DIY or Call Us?

There’s honest work a homeowner can do before calling. Walk the fence line with a level and note which posts lean, which boards sound hollow when tapped, and whether the gate latch still catches without lifting. Photograph the Boral date codes on the back of three boards. That documentation saves us an hour on site and gets you a tighter quote.
Where DIY goes wrong is structural: setting posts in expansive clay without proper drainage, underestimating Boral’s weight and undersizing the frame, or using hardware-store screws that void the material warranty. We’ve pulled out three-year-old DIY Boral fences in Sherman Oaks where the owner spent $2,800 on materials and now faces full replacement. Measure twice, write it down, then build it. If you’re past the planning stage and into rot or structural failure, call (213) 221-0788 and we’ll deliver a written price before anyone picks up a tool.
FAQs
Boral Tru-Exterior carries a 25-year limited warranty, and in Sherman Oaks’ climate we expect 18-22 years of service life before cosmetic fading becomes noticeable. The Santa Monica Mountains fog belt accelerates surface weathering on north-facing fences by roughly 15% compared to south Valley sun exposure. Call (213) 221-0788 for an exact quote on replacement or refresh - estimates are free.
Partial repair is viable when damage is isolated to 2-4 boards, one gate, or a single heaved post. Once rot or fastener corrosion exceeds 30% of the run, replacement is more economical than chasing progressive failure. We assess this on every site visit and document the percentage with photos you receive same-day. Call (213) 221-0788 for a free second opinion on any written estimate.
A standard 100-linear-foot Boral fence with two gates takes 3-4 working days in Sherman Oaks, assuming no utility locates or retaining wall surprises. We pull permits through the City of Los Angeles Department of Building and Safety, which adds 5-10 business days to the start date but protects your resale disclosure. Call (213) 221-0788 to schedule your free estimate.
We carry Boral-compatible stainless fasteners, post caps, and select trim stock on our Sherman Oaks trucks. Full Boral board orders ship from the distributor in 3-5 business days, which we coordinate so material arrival matches our crew start date. Call (213) 221-0788 to confirm current stock and schedule.
Ready to price your Boral fence installation in Sherman Oaks? Call (213) 221-0788 to schedule your free estimate. You’ll receive a flat written price with line-item scope before any work starts, every visit documented with a photo record, and the 365-Day Done Right Promise printed on every page. Bring a competitor’s written quote and we’ll review it line by line at no charge.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







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