TL;DR

  • Western red cedar is the San Diego sweet spot — $45–$55/ft installed, 15–20 year life with sealing, stable and beautiful.
  • Heart redwood is premium — $55–$70/ft, 18–22 year life, more rot-resistant, best for coastal zones.
  • Pressure-treated pine is cheapest — $32–$45/ft, 10–15 year life, but warps and cups east of I-5.
  • Pine with clear sealer fails within 3 years in inland San Diego — we don’t recommend it east of I-5.
  • All three need stainless or hot-dip galvanized hardware in coastal zones.

Every San Diego wood fence homeowner asks the same question: what wood should I use? There are three real options in this market — western red cedar, heart redwood, and pressure-treated pine. Each has a case for it, and each has a climate zone where it works best.

Western red cedar

The default for most San Diego wood fences. Why it works here:

Natural oil content resists rot and insects without pressure treatment. Cedar has thujaplicin in its heartwood, which is toxic to most wood-destroying fungi.

Dimensional stability. Cedar moves less with humidity changes than most softwoods. Your fence stays straight.

Takes stain beautifully. Cedar absorbs penetrating oil stains evenly — no blotching, no patchy color.

Lightweight. Easier for crews to handle on long runs, faster installs.

Gentle on hardware. Cedar’s tannins are less acidic than redwood, so hardware corrosion is slightly slower.

Cost: $45–$55 per linear foot installed for 6-ft dog-ear pickets on a standard fence. Premium clear grades run 15% more.

Lifespan: 15–20 years in San Diego with oil stain every 2–3 years. 10–12 years if never sealed.

Picket options: Dog-ear, flat-top, gothic, french gothic, scalloped. Boards commonly 1x6 or 1x8, 6 ft or 8 ft tall.

Best for: Most San Diego backyards. Coastal, inland, mountain — cedar is adaptable.

Weak spots:

  • Cedar posts can rot at grade if not treated with a ground-contact end-sealer. Pressure-treated 4x4 posts are often used with cedar picket fence.
  • Not as rot-resistant as heart redwood in wet conditions (coastal fog, low-drainage yards).
  • Grade variation matters — knotty common-grade is common and fine for most fences; clear grade is premium and cleaner.

Heart redwood

The premium option. Why you pay for it:

Better rot resistance than cedar. Redwood’s heartwood (the dark red interior portion of the log) has even better rot and insect resistance than cedar. Coastal fences in heart redwood outlast cedar by 2–5 years.

Darker, richer color. Redwood tones are warmer — deep reddish brown that weathers to a lighter silver-gray if unsealed. Many homeowners prefer the aesthetic.

More structural strength. Heart redwood has higher bending strength than cedar, which matters for taller fences (7–8 ft) or tall posts.

Available in longer dimensional lumber. Heart redwood 1x8 and 2x4 in 12-ft lengths is easier to source than equivalent cedar.

Cost: $55–$70 per linear foot installed. Heart grade (old-growth) is more expensive than common redwood, and “construction heart” is the typical residential grade.

Lifespan: 18–22 years in San Diego with sealing. 12–15 years unsealed.

Weak spots:

  • Sapwood (outer lighter portion) rots faster than heart. Cheap redwood fences often have mixed sapwood/heartwood boards that fail unevenly.
  • More expensive than cedar by 20–30%.
  • Limited supply — West Coast redwood is harvested sustainably, and demand sometimes outpaces supply in certain grades.

Best for: Coastal San Diego (Encinitas, Carlsbad, La Jolla), premium residential work, property-line fences visible from the street, taller fences (7–8 ft).

Pressure-treated pine

The budget option. Here’s the honest case:

Much cheaper. $32–$45 per linear foot installed. Saves $1,500–$3,000 on a typical 150-foot run versus cedar.

Pressure-treated. Infused with copper-based preservatives (usually ACQ, MCA, or CA) that resist rot. A PT pine post buried in soil resists decay.

Easy to find. Every lumber yard and Home Depot stocks PT pine in every standard dimension.

Lifespan: 10–15 years in coastal San Diego. Inland and East County performance is noticeably worse — 6–10 years before boards cup, crack, and show end-grain splitting.

Cost-per-year: A pine fence might cost $5,000 installed and last 8 years = $625/year. A cedar fence at $8,500 lasting 18 years = $472/year. Cedar is actually cheaper per year in most San Diego zones.

Where pine works:

  • Coastal properties where the climate is mild (less than 2 miles from the ocean).
  • Utility fences (dog runs, backyard that you don’t see from the street).
  • Short-term ownership where maintenance effort matters less than upfront cost.

Where pine fails fast:

  • East County (El Cajon, Santee, Lakeside, Spring Valley). UV and heat destroy PT pine boards within 2–3 summers.
  • Inland North County (San Marcos, Escondido). Similar heat profile to East County.
  • Any sun-exposed fence without regular sealing.

Weak spots:

  • Treatment chemicals bleach out over time. Boards turn gray, splits open, cups appear.
  • Pine cups more than cedar or redwood. Even sealed boards flex under seasonal humidity.
  • Treatment chemicals are corrosive to some hardware. Stainless or hot-dip galvanized required — NEVER use electroplated zinc hardware with PT pine.
  • End grain untreated after cuts. Cut pine 2x4 rails need end-sealer brushed on the cut end or they rot from the exposed grain inward.

Microclimate matters

The same wood performs very differently across San Diego County.

Coastal (Encinitas, Carlsbad, La Jolla, Oceanside, Coronado):

  • Best: Heart redwood.
  • Good: Cedar.
  • Acceptable: Pine with annual sealing.
  • Key: stainless hardware, penetrating oil stain, 30-36 inch concrete footings.

North County Inland (San Marcos, Escondido, Vista, Poway):

  • Best: Cedar.
  • Good: Heart redwood (expensive but durable).
  • Not recommended: Pine (warps in dry heat).
  • Key: oil stain within 30-60 days of install, re-stain every 2 years.

East County (El Cajon, Santee, Lakeside):

  • Best: Cedar.
  • Good: Heart redwood.
  • Don’t use: Pine. Period.
  • Key: premium material grade, oil stain, consider board-on-board construction to hide any movement.

Mountain (Julian, Alpine, Ramona, Pine Valley):

  • Best: Cedar or redwood.
  • Acceptable: Pine in coastal-mountain zones (Alpine, Descanso). Avoid in high-heat mountain (east).
  • Key: handle freeze-thaw with vertical-grain boards over flat-grain.

South Bay (Chula Vista, National City):

  • Best: Cedar (matches HOA specs in most communities).
  • Good: Redwood where CC&Rs allow.
  • Key: HOA typically specifies a stain color; verify before quoting.

The grade question

Within each species there are grades:

  • Clear grade (highest) — few knots, uniform color, straight grain. Premium price. Used for visible residential work where appearance matters.
  • Select tight knot (STK) — small tight knots allowed, but mostly clean. Most common cedar fence grade in San Diego.
  • Common grade — more knots, some color variation. Budget-friendly but fine for utility fences.
  • Construction grade — structural lumber, not typically used for fence pickets.

For most residential fence, select tight knot is the right call. Clear is worth it on highly visible runs or horizontal fence designs where every board is a design element.

Stain is not optional

Whatever wood you pick, oil stain within 60 days of install doubles the fence’s lifespan in San Diego.

Why oil penetrating stain over water-based stain or paint:

  • Oil stains soak into the wood. Water stains sit on top and peel.
  • Paint creates a film that cracks as wood moves. No film = no peeling.
  • Oil stains let moisture escape. Paint traps it and accelerates rot.

Brands pros use:

  • Ready Seal (California favorite — self-leveling, no back-brushing needed)
  • Defy Extreme (Colorado-made, excellent UV resistance)
  • TWP 1500-series (Total Wood Preservative, most durable in California sun)

Expect to re-stain every 2–3 years in inland San Diego, 3–4 years in coastal. Water no longer beading on the wood is the signal it’s time.

Summary

  • Most San Diego homes: western red cedar. Best balance of cost, appearance, durability, and ease of maintenance.
  • Coastal or premium homes: heart redwood. Pays back with extra years and better salt-air performance.
  • Tight budget in coastal-only: pressure-treated pine. Works, but shorter lifespan and more maintenance.
  • Never: pressure-treated pine in East County or inland North County. The climate eats it.

If you want a specific cost-per-year comparison for your yard, we can quote cedar and redwood side-by-side on the same spec so you compare apples to apples. Free written estimates across San Diego County.