Introduction
A beam’s price tag is really three price tags: the material (lumber, LVL, or steel per linear foot), the hardware and connections (post caps, hangers, bolts), and the labor to set it — plus delivery and, for structural work, engineering and permits. The spread is wide: a pressure-treated 2×10 deck beam can cost a few dozen dollars, while an installed steel girder can run into the thousands.
The Beam Calculator tells you what size beam you need; this guide tells you what that beam is likely to cost. All figures below are typical US planning ranges as of 2026 — lumber markets move, and prices vary significantly by region, supplier, and grade. Use them to budget and compare options, then confirm with local quotes before you commit.
Material Costs: What Beams Cost Per Linear Foot
Beam material is usually priced per linear foot (per linear meter outside the US), and the price climbs steeply with depth and engineered content. The table below gives typical retail ranges for common residential choices:
| Beam type | Typical size example | Typical cost per linear ft | Typical cost per linear m |
|---|---|---|---|
| Pressure-treated sawn lumber | 2×10 × 12 ft | $3–$6 | $10–$20 |
| Pressure-treated sawn lumber | 2×12 × 12 ft | $4–$8 | $13–$26 |
| Kiln-dried dimensional lumber | 2×10 × 12 ft | $2–$5 | $7–$16 |
| LVL (laminated veneer lumber) | 1¾ in × 11⅞ in | $8–$16 | $26–$52 |
| PSL (parallel strand lumber) | 3½ in × 11⅞ in | $14–$28 | $46–$92 |
| Glulam | 3⅛ in × 12 in | $16–$32 | $52–$105 |
| Steel W-shape (material only) | W8 × 18 | $25–$55 | $82–$180 |
Multi-ply beams multiply the material cost: a 3-ply 2×12 is three boards plus fasteners, so roughly three times the single-board price. LVL and PSL are typically sold in 1¾-in plies that get face-nailed or bolted together on site — two plies of LVL cost roughly twice the single-ply price. The material guide explains which of these suits your span and exposure before you price them.
Hardware and Connection Costs
Connections are the forgotten line item — and the one most likely to surprise a DIY budget. Typical planning ranges:
- Post caps / beam seats: $15–$60 each, depending on size and adjustability. A two-post deck beam needs two.
- Joist hangers: $5–$25 each; a beam carrying a dozen joists can need $100+ in hangers alone.
- Through-bolts, screws, and structural screws: $20–$60 per beam assembly for a multi-ply built-up beam.
- Post bases and anchors: $15–$50 each where posts meet footings or slabs.
- Flashing and standoff hardware (exterior beams): $10–$40.
For the worked example in the complete guide — a 12-ft 3-ply 2×12 deck beam — hardware typically adds $80–$200: two post caps, a box of structural screws for the plies, and joist hangers if the joists bear on top or frame in.
Labor Costs
Setting a beam is usually a half-day to full-day job for a carpenter crew, depending on access, weight, and whether temporary shoring is needed:
- Carpenter / framing crew: $50–$100 per hour per person in most US markets; $75–$150+ in high-cost coastal metros.
- Simple deck beam replacement (accessible, no shoring): 2–4 labor hours → $200–$600 typical.
- Interior girder or header (shoring, drywall repair, finishing): $800–$2,500+ all-in is common.
- Steel beam installation (rigging, possible crane): $1,500–$6,000+ installed, with crane time alone often $500–$1,500.
These are planning ranges, not quotes — rural markets run lower, major metros higher, and difficult access (tight crawlspaces, finished interiors) pushes every number up. Get at least two local quotes for anything beyond a simple swap.
Delivery, Engineering, and Permit Costs
Three more line items that belong in the budget:
- Delivery: $50–$150 for lumber-yard delivery; long LVL or steel may need a flatbed or boom truck at $150–$400.
- Structural engineering: $300–$800 typical for a beam sizing letter or calculation package for a residential project; full drawings cost more. Required by most building departments for anything outside prescriptive tables.
- Building permit: $50–$500 depending on jurisdiction and project scope — structural work almost always needs one.
Skipping the permit to save $150 is false economy: unpermitted structural work complicates insurance claims and home sales. The code compliance guide covers what your building department typically requires.
Worked Example: Three Ways to Span 12 Feet
Take the 12-ft (3.66 m) deck beam from the complete guide — 400 lb/ft (5.83 kN/m) uniform load — and compare realistic material options at typical mid-range prices:
| Option | Material cost (12 ft) | Hardware | DIY total | Pro-installed total |
|---|---|---|---|---|
| 3-ply pressure-treated 2×12 | $180–$290 | $80–$200 | $260–$490 | $460–$1,100 |
| 2-ply 1¾×11⅞ LVL | $190–$380 | $80–$200 | $270–$580 | $470–$1,180 |
| W8×18 steel | $300–$660 | $150–$300 | $1,500–$6,000+ installed (pro only) | |
The lumber and LVL options land in the same neighborhood for this span — LVL’s premium buys stiffness and consistency, not dramatically more capacity here. Steel only makes sense when depth is constrained (a flush ceiling, say) or the span grows: at 20+ ft (6+ m), wood options get very deep and steel’s cost premium starts paying for itself in usable headroom.
Ways to Keep Beam Costs Down
- Shorten the span. Adding a mid-span post can drop a beam from LVL territory back to dimensional lumber — deflection falls with the fourth power of span, so even a small reduction pays off. Check the pro tips for span-reduction strategies.
- Go deeper, not wider. A single deeper member usually costs less than doubling up shallower ones, since capacity grows with depth squared.
- Buy standard lengths. Odd lengths and rush orders carry premiums; 12, 16, and 20-ft stock is cheapest.
- Bundle the order. One lumber-yard delivery for the whole framing package beats per-piece trips.
- Don’t oversize blindly. “Just go bigger to be safe” wastes money and can create connection headaches — size it properly with the Beam Calculator instead.
Related Guides
- Complete Beam Sizing Guide — the full method behind the calculator, with a worked example.
- Beam Material Guide — LVL vs PSL vs steel vs sawn lumber, compared in depth.
- Estimating Guide — measuring span and tributary width accurately.
- DIY vs Pro — when a DIY beam install makes sense and when to hire out.
- Beam Calculator FAQ — quick answers to common sizing and cost questions.
Get Your Number
Budget a beam as material plus hardware plus labor plus the soft costs (delivery, engineering, permit), and compare options at the same span before choosing — the cheapest board isn’t the cheapest beam if it needs an extra post or fails deflection. Run your span and loads through the Beam Calculator to lock in the size, then price that exact size with two local suppliers.
Disclaimer: All cost figures are typical US planning ranges for 2026 and vary significantly by region, supplier, grade, and market conditions. They are budgeting estimates, not quotes. Verify beam selections with your supplier’s span tables or a structural engineer, and check your local building code before building.
