LA Materials Direct · Downtown Los Angeles · Prices include tax · Updated October 2026
Insulation Prices in Los Angeles (2026): What Batts Actually Cost Per Bag
Most insulation pricing online is written for homeowners getting installed quotes — big ranges, no real numbers. If you are a contractor, remodeler, or ADU builder, you do not buy insulation by the “project.” You buy it by the bag. So here are real per-bag prices for CertainTeed fiberglass batts in Los Angeles, the coverage each bag actually gives you, and the math to price your next job in about thirty seconds.
Per-bag prices — CertainTeed batts, Los Angeles
All prices include sales tax. The more you buy, the lower the tier.
| Batt | Coverage per bag | 1–9 bags | 10–49 bags | 50–199 bags | 200+ bags |
|---|---|---|---|---|---|
| R-13 Unfaced 15" | 128.40 sq ft | $61.00 | $59.75 | $58.25 | $57.00 |
| R-13 Kraft-Faced 15" | 128.40 sq ft | $67.00 | $65.75 | $64.25 | $63.00 |
| R-15 Unfaced 15" | 78.79 sq ft | $58.00 | $56.75 | $55.25 | $54.00 |
| R-19 Unfaced 15" | 88.64 sq ft | $54.50 | $53.00 | $51.75 | $50.25 |
| R-19 Kraft-Faced 15" | 88.64 sq ft | $58.75 | $57.25 | $56.00 | $54.50 |
| R-30 Unfaced 15" | 58.67 sq ft | $57.00 | $55.50 | $54.25 | $52.75 |
| R-30 Kraft-Faced 15" | 58.67 sq ft | $61.00 | $59.75 | $58.25 | $57.00 |
| R-30 Cathedral 16x48 | 50.83 sq ft | $61.25 | $60.00 | $58.75 | $57.50 |
| R-38 Unfaced 15" | 42.67 sq ft | $53.50 | $52.25 | $50.75 | $49.50 |
| R-38 Kraft-Faced 15" | 42.67 sq ft | $56.50 | $55.00 | $53.75 | $52.25 |
24-inch widths and additional R-values are also stocked — text us for the full list, or run your numbers in our online Bag Calculator at lamaterialsdirect.com.
The math that matters: cost per square foot
Per-bag price alone does not tell you what a job costs. Coverage does. At the 10–49 bag tier:
- R-13 Unfaced: $59.75 ÷ 128.40 sq ft = $0.47 per sq ft
- R-19 Kraft-Faced: $57.25 ÷ 88.64 sq ft = $0.65 per sq ft
- R-30 Unfaced: $55.50 ÷ 58.67 sq ft = $0.95 per sq ft
- R-38 Unfaced: $52.25 ÷ 42.67 sq ft = $1.22 per sq ft
Bags needed per 1,000 sq ft: R-13 ≈ 8 bags · R-19 ≈ 12 bags · R-30 ≈ 17 bags · R-38 ≈ 24 bags.
So a 1,000 sq ft attic at R-30 runs about $944 in materials at contractor tier pricing. Compare the same CertainTeed R-30 bag at the big-box store: $79.97 a bag — about $1,360 for the same attic, before you have burned a morning in the aisle. Buying from a supplier who prices for the trade is not a small difference. It is the difference between a bid that wins and a bid that loses money.
Faced or unfaced? 15″ or 24″?
- Kraft-faced is your vapor retarder — standard for exterior walls and anywhere the plans call for a faced batt.
- Unfaced is for attics laid over existing insulation, interior walls, and sound work.
- 15-inch batts fit standard 16″ on-center framing. 24-inch fits 24″ on-center — fewer pieces, faster installs on wide bays.
- R-30 Cathedral is sized for cathedral and vaulted ceilings where a standard R-30 batt will not fit the rafter depth.
If you are not sure which spec your job calls for, send us the plans or a photo of the framing and we will tell you straight — including when you do not need the more expensive option.
How buying works
LA Materials Direct is a materials supplier in Downtown Los Angeles. We sell materials — you handle your own install, your way, on your schedule.
- Call or text (213) 398-9601 with your R-value, faced or unfaced, and bag count.
- We confirm stock and your tier price — the price we quote is the price you pay, tax included.
- Pickup is by appointment, or ask about delivery to your job site anywhere in the LA area.
Buying regularly? Ask about our dealer program — registered contractors and resellers get their own pricing tier. Program details are shared with members only.
Insulation in Los Angeles — quick answers
Where can I buy insulation in Los Angeles?
LA Materials Direct is a building materials supplier in Downtown Los Angeles that sells CertainTeed fiberglass insulation batts by the bag to contractors, remodelers, ADU builders, and homeowners. Pickup is by appointment — call or text (213) 398-9601 to schedule.
How much does R-30 insulation cost per bag?
At LA Materials Direct, R-30 Unfaced 15″ batts are $57.00 per bag for 1–9 bags, $55.50 per bag at 10–49 bags, $54.25 at 50–199 bags, and $52.75 at 200+ bags. R-30 Kraft-Faced runs $61.00 down to $57.00 per bag, and R-30 Cathedral runs $61.25 down to $57.50 per bag. All prices include sales tax.
Does LA Materials Direct deliver insulation to the jobsite?
Yes. LA Materials Direct offers next-day delivery on in-stock batts across the Los Angeles area, and special orders arrive in 24–48 hours. Text your job address and bag count to (213) 398-9601 for a delivery quote.
How do I order insulation from LA Materials Direct?
Call or text (213) 398-9601 with your R-value, faced or unfaced, and bag count. LA Materials Direct confirms stock and your tier price — the price quoted is the price you pay, tax included. Pickup is by appointment, or ask about delivery to your job site anywhere in the LA area.
FAQ
How many bags do I need for a 1,000 sq ft attic?
At R-30, about 17 bags of 15″ unfaced (58.67 sq ft per bag). At R-38, about 24 bags. Our free Bag Calculator does the math by R-value and square footage.
Do your prices really include tax?
Yes. Every price on this page is tax-included. No surprise at pickup.
Do you deliver?
Yes — delivery is available across the Los Angeles area. Text your job address and bag count for a delivery quote.
Do you install?
No. We are a materials supplier. That is exactly why our prices are what they are — no install markup baked in. If you need an installer, ask and we will point you to the Find Local Pros directory on our site.
LA Materials Direct · Downtown Los Angeles
Call/text: (213) 398-9601 · lamaterialsdirect.com
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