Wood support beam installation typically costs $2,000-$8,000 for a straightforward residential project, while complex jobs can exceed $15,000. Wood support beam cost depends on beam length and load, wall removal, temporary supports, labor, permits, and whether the work requires foundation upgrades.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed wood beam | $2,000 | $5,000 | $8,000+ | Typical opening in a load-bearing wall |
| Beam material | $8/linear ft | $25/linear ft | $80+/linear ft | Varies by engineered wood type and size |
| Structural design and permits | $300 | $900 | $2,500+ | Local requirements and project complexity vary |
| Foundation or post work | $500 | $2,000 | $6,000+ | May be needed to carry added loads |
Typical price for a 10- to 20-foot wood beam
For an engineered wood beam replacing part of a load-bearing wall, homeowners commonly pay $2,000-$8,000 installed. A simple, accessible opening with limited finish work may cost $1,500-$3,500; a longer beam, difficult access, or extensive ceiling and wall repairs can bring the total to $8,000-$15,000 or more. A typical midrange project is about $5,000, including installation labor and basic structural work.
These ranges assume a single-story home, standard access, no major foundation repair, and a beam sized by a qualified professional. Material pricing alone is not the project price: temporary shoring, demolition, lifting, connections, and finish repairs often account for most of the bill. Assumptions: U.S. average labor, engineered wood, ordinary access, and a permitted residential alteration.
How beam materials and wall-opening labor appear on quotes
Quotes should distinguish the structural beam from work needed to remove a wall and transfer its load. Rates below are planning ranges, not fixed national prices; contractors may combine some line items into one project fee.
| Quote item | Typical price | What it covers | Common cost driver |
|---|---|---|---|
| LVL or engineered wood beam | $8-$40 per linear ft | Beam stock and basic connectors | Depth, ply count, and span |
| Carpentry and installation labor | $75-$150 per hour | Shoring, fitting, fastening, and setting | Crew size and access |
| Wall removal and debris | $500-$2,500 | Opening, demolition, and haul-away | Wall length and finish material |
| Posts and bearing work | $300-$2,000 | Supports, connections, and load transfer | Load path and floor condition |
| Engineering and permits | $300-$2,500 | Calculations, drawings, and review fees | Local rules and design needs |
Labor for a small installation can take 10-20 hours, while larger jobs may require several days across demolition, structural work, inspection, and repairs. Ask whether the quote includes temporary supports, disposal, and patching, since exclusions can create substantial add-on charges.
Why span length and floor load change beam size
Beam dimensions depend on the distance between supports and the weight carried above, not just the opening width. A 10-foot opening may need a smaller beam than a 16-foot opening, while a second story, roof load, or concentrated point load can require deeper or multiple-ply engineered lumber.
As a rough planning distinction, openings under 10 feet with clear bearing points tend to cost less than spans above 14 feet, which may need larger beams, additional posts, or lifting equipment. A beam supporting two floors or a roof can add $1,000-$4,000 or more compared with a similar opening carrying only a ceiling. Structural calculations, rather than a rule-of-thumb size, determine the safe specification.
Three example quotes for different home projects
A 10-foot opening in an accessible, single-story interior wall might involve a two-person crew for one to two days, a modest LVL beam, and basic patching. A plausible total is $2,500-$4,000, excluding premium finish work.
A 14-foot opening supporting a second floor may require a larger multi-ply beam, temporary shoring, engineering, and a permit. With roughly 20-30 labor hours, a plausible quote is $5,000-$9,000. A 20-foot opening with difficult access, posts, and foundation reinforcement may reach $10,000-$18,000 or more. These examples are budgeting scenarios; actual beam design and local labor rates can shift totals.
How permits, inspections, and foundation work affect the total
Many jurisdictions require a permit when altering a load-bearing wall, and some require stamped structural plans. Permit and plan-review charges commonly total $100-$1,000, while an engineer’s site visit and calculations may add $300-$1,500. Urban areas or complicated conditions can cost more.
New beam loads must reach adequate supports below. If an existing post sits over a weak floor, the contractor may need to add a footing, reinforce framing, or open a basement slab. Such work can add $500-$6,000 or more depending on excavation and concrete requirements. Confirm whether the estimate includes inspections and any required load-bearing support below the beam.
When LVL costs less than glulam or steel alternatives
LVL is commonly chosen for residential spans because it is engineered, readily available, and often less expensive than a decorative glulam beam. Glulam can cost about $20-$80 per linear foot for the beam, with appearance-grade finishes priced higher. A steel beam may cost $30-$100 or more per linear foot for material and often needs specialized handling and connections.
Switching to steel does not automatically lower the installed price: the beam may be heavier, access may require equipment, and posts or connections may change. Visible beams may also need finish carpentry or paint. Compare complete installed quotes for the same span, design load, finish, and support plan—not material prices alone.
Regional labor rates for residential beam installation
Prices in high-cost metro areas, including parts of the Northeast and West Coast, may run 15%-35% above national-average planning ranges. Smaller towns and lower-cost regions may be 10%-20% below, although limited contractor availability or long travel distances can erase the savings.
Local permit rules, housing age, and access also matter. A contractor working in a tight city row house may need extra protection and debris handling; a rural project may incur travel or equipment delivery fees. Get at least two written estimates from contractors familiar with local structural permits and comparable beam projects.
Ways to control the wood beam installation budget
Keep the opening and finish scope clear before work begins. Moving plumbing, wiring, ducts, or sprinklers can add hundreds to several thousand dollars, so identify these services early. Ask whether the contractor can preserve nearby trim or flooring and specify who handles drywall, paint, and debris removal.
Compare quotes that use the same engineer-approved beam size and include shoring, connectors, permits, disposal, and finish repairs. Avoid choosing a smaller beam or omitting a post to save money unless the design professional approves the change. The safest savings usually come from reducing avoidable finish work and scope changes, not reducing structural capacity.