Introduction
What should a roof truss actually cost? Prices swing widely — a small fink truss can cost a few hundred dollars while a long-span attic truss with an energy heel can cost several times that, and the crane, connectors, and bracing that turn a delivery into a framed roof add their own line items. Truss pricing is factory-quoted per truss, driven by span, pitch, type, heel height, and design loads, then set by a crew whose speed depends on preparation.
The Truss Calculator gives you the two numbers every quote starts from — how many trusses and how long each one is — so you can compare supplier quotes on an apples-to-apples basis. This guide breaks down what each cost component typically runs as a planning range, what drives prices up or down, and how to budget a full truss package without surprises.
What a Truss Costs Per Unit
Trusses are priced per truss at the plant. The ranges below are typical US residential planning figures — lumber markets move, regional competition varies, and design loads change the lumber grade required, so always get live quotes. Treat these as budget brackets, not prices:
| Truss | Typical per-truss range |
|---|---|
| Common fink, 20–24 ft (6.1–7.3 m) span | $150–$300 |
| Common fink, 28–32 ft (8.5–9.8 m) span | $250–$450 |
| Howe/pratt, 32–40 ft (9.8–12.2 m) span | $400–$700+ |
| Attic truss (any common span) | 25–60% above fink equivalent |
| Scissor truss | 20–40% above fink equivalent |
| Mono truss, 12–20 ft (3.7–6.1 m) | $120–$280 |
| Gable-end truss | Often priced near common truss |
What pushes a quote toward the top of a range: steep pitch (longer members), raised energy heels (taller truss, more lumber), high snow or wind design loads (heavier lumber grades, more webs), and complex profiles (gambrel, attic). What pushes it down: standard spans, moderate pitch, 24 in o.c. spacing, and ordering with a common lumber package. The material guide explains how lumber grades feed into this.
The Other Line Items
The truss invoice is rarely the whole cost. Budget these companions:
Delivery
Truss plants deliver on flatbeds or boom trucks; delivery runs roughly $200–$500 within a normal radius, sometimes bundled into the order. Long spans may need pilot cars or special routing — confirm who pays before you sign.
Crane / set day
Trusses above about 20 ft (6 m) span or on two-story walls are set by crane: roughly $800–$2,000 per day depending on region and boom size, or bundled with the truss package by some plants. Small single-story trusses can be hand-set by a crew — the DIY vs pro guide covers when that’s realistic.
Connectors
Truss-to-wall connectors (hurricane ties) at each bearing point: roughly $3–$10 each, two per common truss, plus nails. A 16-truss order needs 32 ties — a few hundred dollars, and non-negotiable in wind zones.
Bracing lumber
Temporary lateral and diagonal bracing during erection plus any permanent bracing the design drawings call for: budget roughly $150–$400 in 2×4s for a typical house, more for long spans.
Labor to set
A prepared crew sets simple roofs fast — plan on the setting labor running a meaningful fraction of the truss material cost. Disorganized set days (no bracing plan, no crane confirmed, walls out of square) are where labor budgets die; the pro tips guide is essentially a labor-cost protection plan.
Worked Budget Example
Illustrative planning numbers — not a quote. Get live prices from truss plants in your market.
A 40 ft × 28 ft (12.19 m × 8.53 m) building, 8/12 pitch fink trusses at 24 in o.c.: 40 ÷ 2 = 20 spaces → 21 trusses (per the formula guide). At a mid-range $350 per truss: $7,350 in trusses. Add crane day $1,200, delivery $300, connectors 42 × $6 = $252, bracing lumber $250, and setting labor ~$2,500. Planning total: roughly $11,000–$12,500 for the truss package installed.
The metric twin — 12.192 m building at 600 mm o.c. — gives the same 21 trusses, so the budget math is identical; only your suppliers’ currency and market change the dollars. The estimating guide shows how this count feeds the sheathing and roofing takeoffs.
Where the Money Is Saved — and Where It Isn’t
- Do save: choose 24 in o.c. spacing where loads allow (fewer trusses), keep the pitch moderate, and approve drawings fast so the plant schedules you in a normal production slot.
- Do save: get three plant quotes with identical specs — the same truss can quote 20% apart between plants.
- Don’t save: downgrading the heel height to shave lumber cost, then discovering the insulation doesn’t fit — a code failure costs more than the savings.
- Don’t save: skipping connectors or bracing. These are pennies against the truss cost and structural requirements, not optional accessories.
- Don’t save: ordering before the drawings are approved. A re-cut truss is a full-price truss.
One more lever: attic trusses look expensive per unit but can be cheaper than fink trusses plus a separate floor system for a bonus room — price both schemes before deciding. The complete guide compares the truss types this trade-off involves.
Related Guides
- Complete Truss Guide — types, spans, loads, and the full overview.
- Formula Explained — the truss-count math behind every quote.
- Estimating Guide — measuring inputs and the full material takeoff.
- Pro Tips — set-day discipline that protects your labor budget.
- DIY vs Pro — when hand-setting saves money and when it doesn’t.
- Set-Day Checklist — verify everything before the crane clock starts.
Get Your Number
Budget a truss package from the inside out: count the trusses, multiply by a per-truss planning figure for your span and type, then add delivery, crane, connectors, bracing, and labor. The Truss Calculator nails the first number; three plant quotes nail the rest. Compare quotes on identical specs — span, pitch, heel height, spacing, and design loads — and treat any quote far below the others as a specification gap, not a bargain.
Disclaimer: Cost figures are typical planning ranges that vary by region, lumber market, season, and design loads — they are not quotes. Verify all pricing with local truss manufacturers and suppliers, and confirm structural and code decisions with a licensed engineer or your local building authority.
