How Much Does It Cost to Build a 16×20 Gable Shed?
Pricing assumptions
- Pricing basis:our engine's baseline materials price table, built from Charlotte, NC–area retail estimates (spot-checked against Home Depot listings) — the region we operate in, not a location-specific quote for your ZIP code. Lumber and materials prices vary by region and week; treat the total as a planning baseline and check your local supplier.
- Price effective date: 2026-08-18. This date moves whenever the underlying price table is updated.
- Waste factors: included — a 10% waste allowance on framing lumber and sheet goods (higher on hip roofs and around openings), matching what the engine assumes for every quote it generates.
- Excluded: sales tax, delivery/freight, tools, permits, and site work (grading, foundation excavation). Labor is shown separately below only when an estimate is available — it is never folded into the materials number above.
Materials Cost Breakdown
| Category | Estimated Cost | % of Materials Total |
|---|---|---|
| Doors & Windows | $2,197 | 21% |
| Framing Lumber | $1,772 | 17% |
| Sheathing | $1,339 | 13% |
| Exterior Trim, Soffit & Paint | $1,030 | 10% |
| Roofing (Shingle) | $934 | 9% |
| Foundation | $934 | 9% |
| Siding | $740 | 7% |
| Fasteners | $564 | 5% |
| Caulk, Flashing & Consumables | $388 | 4% |
| Housewrap & Rain Screen | $354 | 3% |
| Hardware & Connectors | $171 | 2% |
| Materials Total | $10,422 | 100% |
DIY vs. Hiring the Framing Out
- DIY (materials only): $10,422 — you supply the labor.
- If you hire out the framing: add an estimated $5,920 in crew labor (roughly 10 build days for a 2-person crew), for a materials-plus-labor total of $16,342. This is crew labor only — it excludes contractor markup, permits, and site work, so a real contractor quote will run higher.
Frequently Asked Questions
- How much does it cost to build a 16×20 gable shed?
- Based on our engine's default materials bill of materials for the 16×20 Gable Large Workshop plan, the computed materials cost is $10,422. A 16×20 gable workshop runs approximately $7,650–$9,500 in materials for a DIY build, or $29,850–$36,500 installed if you hire a contractor. The 2×6 walls and heavier roof framing add substantially to the lumber bill, and door hardware quality drives the upper end of each range.
- What's included in this materials estimate?
- The estimate covers every material line in the plan's bill of materials — framing lumber, sheathing, roofing, siding, doors & windows, fasteners, and hardware — priced at the engine's default rates. It excludes taxes, delivery, tools, and (unless shown below) labor. See the assumptions block on this page for the full list.
- Does this include labor to build it?
- No — the number above is materials only. If you hire out the framing, our engine also computes a separate crew-labor estimate of $5,920 (about 10 build days for a 2-person crew), for a materials-plus-labor total of $16,342. That figure excludes contractor markup, permits, and site work — it is not a contractor quote.
- What's the biggest cost driver for a 16×20 shed?
- Doors & Windows is the largest line item at $2,197, roughly 21% of the total materials cost. The full category breakdown is on this page.