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Tell us your beam dimensions, species preference, and quantity. We'll match your needs to our current inventory. Email us at info@boston-lumber.com or use the form below.
Options For Every Project
Beam Types
From authentic hand-hewn timbers to precision-planed modern finishes, we carry beams for every aesthetic and structural requirement. Each beam type serves different design goals and installation constraints.
Hand-Hewn Beams
The most prized reclaimed beams available. Hand-hewn with broad axes in the 18th and 19th centuries, these timbers show visible axe marks, adze patterns, and incredible character. Sourced primarily from barns and early industrial structures built before the widespread adoption of mechanical sawmills. Each beam tells the story of the craftsman who shaped it — the angle of the axe, the rhythm of the strokes, and the tool marks unique to a specific era and region. Hand-hewn beams are the centerpiece of high-end residential and commercial interiors, prized by architects and designers for their unmatched authenticity and visual weight.
Rough-Sawn Beams
Machine-cut timbers from early sawmills, retaining visible circular or band-saw marks. These beams offer a rugged, industrial look with consistent dimensions. Common in warehouse and factory demolitions from the late 19th and early 20th centuries. Rough-sawn beams are typically more uniform in cross-section than hand-hewn timbers, making them easier to work with for structural applications. The saw marks themselves are highly valued as character features — circular saw marks from the 1850s-1880s have a distinctive pattern that differs from the band-saw marks of later mills.
Planed / Finished Beams
Reclaimed beams that have been surfaced on all four sides (S4S) in our facility. Smooth to the touch while retaining age-related character like nail holes, bolt marks, and grain variation. Planed beams bridge the gap between rustic reclaimed character and clean modern aesthetics. They work well in contemporary interiors where you want the warmth and story of reclaimed wood without the rough texture. Our planing process removes just enough material to create a smooth, touchable surface while preserving the visual evidence of the wood's history.
Box Beams
Hollow beams constructed from reclaimed lumber faces, designed to wrap around steel I-beams, LVL headers, or engineered supports. Significantly lighter than solid timbers while maintaining the authentic reclaimed wood appearance on all visible faces. Box beams solve the practical challenges of solid timber installations — they reduce structural load on ceilings and walls, make running electrical and plumbing through the beam cavity possible, and cost less than solid timbers of equivalent visual size. We fabricate box beams in our shop using precision mitering and internal blocking for a seamless appearance.
Fireplace Mantels
Individually selected reclaimed timbers prepared specifically for mantel installations. Each mantel beam is chosen for exceptional character — interesting grain, hand-hewn marks, bolt holes, or weathering patterns that create a natural focal point above your fireplace. We cut mantels to your specified length, surface the top and front face (or leave rough per your preference), and seal the end grain. Mounting hardware and installation guidance are included. Mantel beams range from rustic barn timbers to refined, planed pieces depending on your design direction.
Species Selection
Beam Species Comparison
Different species offer different strengths, aesthetics, and structural characteristics. This detailed comparison helps you choose the right species for your application, whether the beam is purely decorative or must carry structural loads.
Douglas Fir
Straight grain, warm golden color, excellent strength-to-weight ratio. Most common species in our beam inventory. Douglas fir from old-growth Pacific Northwest forests has a strength-to-weight ratio that rivals steel when calculated by weight. The tight vertical grain and warm golden-to-reddish color make it the default choice for exposed beam installations in both residential and commercial settings.
White Oak
Dense, hard, and rot-resistant. Prized for both structural and decorative applications. Beautiful medullary rays when quarter-sawn. White oak's closed-cell structure makes it one of the most water-resistant hardwoods available, which is why it was the preferred timber for shipbuilding and bridge construction. Reclaimed white oak beams carry this legacy of durability.
Heart Pine
Extremely dense old-growth pine with rich amber to red coloring. High resin content makes it naturally pest-resistant. Heart pine beams from Southern industrial buildings are among the densest softwood timbers available, with growth ring counts exceeding 20 per inch. The resin-saturated heartwood develops a deep, warm patina over time.
Hemlock
Light in color with a fine, even texture. Often found in hand-hewn barn beams from New England. Moderate hardness. Hemlock was the most widely used building timber in colonial New England, and hand-hewn hemlock beams from 18th-century barns are among the most character-rich timbers in our inventory. The soft, warm tone mellows beautifully with age.
American Chestnut
Rare and highly sought after. Light brown with a warm tone. No longer commercially available as new lumber due to the chestnut blight. Chestnut beams are the most collectible items in our inventory, sought after by preservationists, fine furniture makers, and clients who appreciate the historical significance of this functionally extinct species.
Cypress
Naturally rot-resistant and insect-resistant. Pale yellow to warm brown. Ideal for beams in humid or semi-outdoor environments. Cypress heartwood contains cypressene, a natural preservative that makes it one of the most decay-resistant woods on earth. Reclaimed cypress beams are the top choice for covered porches, pool houses, and other semi-outdoor installations.
Structural Reference
Beam Span & Load Reference Table
This table provides general guidance on beam span capabilities. These are approximate values for planning purposes only. All structural applications require review by a licensed structural engineer for your specific load conditions and building codes.
| Beam Size | Species | Max Span | Load Capacity | Typical Application |
|---|---|---|---|---|
| 4"x6" | Douglas Fir | 6 ft | Light decorative | Shelf supports, decorative headers |
| 6"x6" | Douglas Fir | 8 ft | Light to moderate | Short ceiling spans, posts |
| 6"x8" | Douglas Fir | 10 ft | Moderate | Ceiling beams, headers |
| 8"x8" | Douglas Fir | 12 ft | Moderate to heavy | Main ceiling beams, joists |
| 8"x10" | Douglas Fir | 14 ft | Heavy | Ridge beams, main headers |
| 10"x10" | Douglas Fir | 16 ft | Heavy | Primary structural beams |
| 10"x12" | Douglas Fir | 18 ft | Very heavy | Long-span ceiling beams |
| 12"x12" | Douglas Fir | 20 ft | Very heavy | Great room spans, commercial |
| 6"x8" | White Oak | 12 ft | Heavy | Structural headers, floor joists |
| 8"x8" | White Oak | 14 ft | Very heavy | Main structural beams |
| 8"x10" | White Oak | 16 ft | Very heavy | Ridge beams, long-span headers |
| 10"x10" | White Oak | 18 ft | Exceptional | Primary structural, commercial |
Values are approximate guidelines only. Actual capacity depends on beam condition, moisture content, grain orientation, and specific load conditions. Always consult a structural engineer.
Know the Difference
Structural vs. Decorative
The distinction between structural and decorative beam applications affects species selection, grading requirements, engineering, installation methods, and cost.
| Criteria | Structural | Decorative |
|---|---|---|
| Load Bearing | Yes — engineered and graded for structural loads per building code | No — aesthetic only, non-load-bearing |
| Species | Douglas fir, white oak, heart pine preferred for structural values | Any species for visual character |
| Grading | Must meet structural grading standards (NHLA or equivalent) | Graded for appearance and character only |
| Engineering | Structural engineer sign-off required for permits | No engineering required |
| Weight | Full solid timber weight — plan for rigging and lifting | Solid or box beam (significantly lighter) options |
| Cost | Higher — requires specific species, grading, and may require testing | More flexible — wider species and grade range |
| Installation | Professional timber-frame installation recommended | Experienced carpenter or skilled DIY |
| Permitting | Building permit typically required | Typically no permit required |
How Beams Connect
Connection Methods
The method used to connect reclaimed beams affects appearance, structural integrity, and installation complexity. We stock hardware for all connection types in our accessories section.
Through-Bolt Connections
Steel through-bolts pass completely through the beam and are secured with washers and nuts on the opposite side. This is the strongest mechanical connection for timber-to-timber and timber-to-steel joints. Through-bolt heads can be left exposed as decorative elements or concealed with wooden plugs.
Concealed Beam Brackets
Steel plates or angle brackets mounted inside a pocket routed into the beam end. The beam slides over the bracket and is secured with lag bolts from inside the pocket. The connection is completely hidden from view, creating a clean floating-beam appearance.
Decorative Steel Straps
Hand-forged or fabricated steel straps that wrap around beam connections, providing both structural reinforcement and visual character. Available in matte black, oil-rubbed bronze, and raw steel finishes. Straps can be custom-sized to match your beam dimensions.
Traditional Timber Joinery
Mortise-and-tenon, dovetail, and half-lap joints cut directly into the timber. These connections use the wood itself as the fastening mechanism, secured with wooden pegs (treenails) or draw-bored pins. The most historically authentic connection method, requiring skilled timber-frame craftsmanship.
Lag Bolt Mounting
Heavy-duty lag bolts driven through pre-drilled holes into structural framing members behind the finished wall or ceiling. Suitable for decorative beams that do not carry structural loads. Pre-drilling is essential to prevent splitting in dense reclaimed timbers.
Protect & Enhance
Finishing Options
The finish you choose affects appearance, durability, and maintenance requirements of your reclaimed beam installation. We offer finishing services in-house or can recommend products for on-site application.
| Finish | Description | Durability | Maintenance |
|---|---|---|---|
| Unfinished / Natural | Left in its reclaimed state with no applied finish. Allows the wood to age naturally and develop its own patina over time. | N/A — raw wood | None — will gray and weather naturally |
| Penetrating Oil | Tung oil, Danish oil, or linseed oil soaks into the wood fibers, enhancing grain and color without building a surface film. | Moderate — refreshed every 1-2 years | Reapply oil annually for fresh appearance |
| Hardwax Oil | Rubio Monocoat or Osmo Polyx-Oil provides a single-coat, zero-VOC protective finish that bonds molecularly with the wood. | High — spot-repairable | Spot-repair as needed, full recoat every 3-5 years |
| Exterior Stain | UV-resistant penetrating stain formulated for outdoor timber. Protects against sun damage, moisture, and mildew. | High — reapply every 1-2 years | Clean and reapply stain every 1-2 years |
| Wire Brush Texture | Not a chemical finish but a surface treatment. Soft grain is removed with wire brushes, leaving a deeply textured surface. | N/A — surface treatment | Can be combined with any of the above finishes |
| Clear Polyurethane | Water-based or oil-based polyurethane provides a hard protective film on the beam surface. Maximum protection. | Very high — 5-10 year service life | Sand and recoat every 5-10 years |
Expert Advice
Installation Best Practices
Working with reclaimed beams requires planning, proper equipment, and attention to detail. Here are eight essential considerations from our team.
Verify Load Requirements
Before using reclaimed beams structurally, consult a structural engineer. We provide species identification and can arrange third-party load testing for critical applications. Reclaimed beams may have internal defects not visible from the surface — knots, checks, and historic bolt holes can reduce the effective cross-section and load capacity.
Moisture Content Matters
Reclaimed beams should be acclimated to your site for 2-4 weeks before installation. We kiln-dry beams to 12-15% moisture content, but field conditions vary. Interior installations in heated spaces may require bringing the beam down to 8-10% MC. Use a pin-type moisture meter to verify levels before final installation.
Use Proper Hardware
Heavy beams require appropriate mounting hardware — lag bolts, through-bolts, or custom steel brackets. We stock compatible hardware in our accessories section. Never rely on drywall anchors or toggle bolts for beam installations; always connect to structural framing members.
Finish Thoughtfully
Many clients prefer to leave beams unfinished for maximum character. If finishing, use a penetrating oil or wax rather than a film-forming polyurethane to let the wood breathe. For exterior or semi-outdoor installations, use a UV-resistant penetrating stain designed for timbers.
Plan for Weight
Solid reclaimed beams are heavy. A 12-foot 8x8 white oak beam weighs over 300 pounds. A 20-foot 10x10 Douglas fir beam can exceed 500 pounds. Plan your rigging, lifting, and crew accordingly. For high-ceiling installations, you may need scaffolding, a boom lift, or a crane.
Consider Box Beams for Decoration
For purely decorative applications, box beams offer the same visual impact at a fraction of the weight and cost. They also make it easy to conceal wiring, plumbing, and mechanical systems within the hollow cavity. Box beams are particularly well-suited for retrofit installations where adding significant weight to existing ceilings is not feasible.
Account for Imperfections
Reclaimed beams are not dimensionally perfect. Expect slight variations in cross-section, twist, bow, and surface texture. These variations are part of the character. Scribe-fitting, shimming, and custom brackets may be needed to accommodate irregularities.
Seal End Grain
The end grain of a beam absorbs and releases moisture 10-12 times faster than the face grain. If beam ends are visible, seal the end grain with a wax-based end sealer immediately upon delivery. This prevents end checking and cracking, especially in heated or air-conditioned environments.
Project Inspiration
Customer Projects
Here are examples of how our customers have used reclaimed beams in real-world residential and commercial projects.
Residential Great Room
Three 24-foot Douglas fir rough-sawn beams installed as exposed ceiling timbers in a new-construction great room with cathedral ceilings. The beams served as decorative covers for steel I-beam structural supports, concealing the modern framing while providing an authentic timber-frame appearance.
Restaurant Interior
Twelve hand-hewn hemlock beams (8x8, various lengths) installed throughout a farm-to-table restaurant in Cambridge, MA. The beams were selected for maximum character — deep axe marks, peg holes, and natural checking — to reinforce the establishment's commitment to heritage and authenticity.
Fireplace Mantel Installation
A single 6-foot hand-hewn white oak beam installed as a floating fireplace mantel in a Beacon Hill brownstone. The beam was mounted on concealed steel brackets with no visible hardware, creating a clean, dramatic focal point above a gas fireplace insert.
Brewery Tap Room
Twenty-two reclaimed Douglas fir box beams (10x10 visual, hollow core) installed in a craft brewery tap room in Somerville, MA. Box beams were chosen over solid timbers to reduce weight on the existing roof structure and to allow electrical wiring for pendant lighting to run through the beam cavities.
Investment Guide
Pricing Overview
Beam pricing depends on type, species, dimensions, and processing. Contact us at info@boston-lumber.com for precise quotes.
Minimum order: 1 beam. Volume discounts for 10+ beams. Delivery fees depend on weight and distance from Medford, MA.
Common Questions
Beam FAQ
Can reclaimed beams be used structurally?
Yes, many of our reclaimed beams are suitable for structural applications. However, structural use requires professional assessment. We recommend consulting a structural engineer who can evaluate the beam's species, grade, cross-section, and condition for your specific load requirements. We provide species identification and can arrange third-party grading or load testing for critical structural applications.
How do I determine what size beam I need?
Beam sizing depends on the span (distance between supports), the load the beam must carry, the species of wood, and whether the application is structural or decorative. For decorative-only applications, visual proportion is the primary concern — a general rule of thumb is that beam depth should be roughly 1 inch for every foot of span. For structural applications, a licensed engineer must calculate the required cross-section.
What is the longest beam you carry?
Our longest beams are rough-sawn Douglas fir, available up to 40 feet in length. Hand-hewn beams are typically available up to 30 feet. Planed beams are available up to 24 feet. For spans exceeding our maximum lengths, we can join beams using traditional scarf joints or concealed steel splice plates.
How much does a reclaimed beam weigh?
Weight varies by species, moisture content, and cross-section. As a general guide: Douglas fir weighs approximately 2.8 lbs per board foot, white oak approximately 3.9 lbs per board foot, and hemlock approximately 2.3 lbs per board foot. An 8x8x12-foot Douglas fir beam weighs approximately 180 lbs. An equivalent white oak beam weighs approximately 250 lbs. Box beams weigh 5-12 lbs per linear foot.
More Answers
Additional Questions
Can you cut beams to a specific length?
Yes, we cut all beams to your specified length at no additional charge. We use industrial circular saws and chain-beam saws capable of cutting cross-sections up to 16x16 inches. If you need angled cuts (for roof pitch matching, for example), please provide the angle specification and we will make the cut in our shop.
Do you offer beam installation services?
We do not provide installation services directly, but we can recommend experienced timber framers and contractors in the Greater Boston area who specialize in reclaimed beam installations. We also provide detailed installation guidance, hardware recommendations, and support by email at info@boston-lumber.com throughout your project.
What is the difference between hand-hewn and rough-sawn?
Hand-hewn beams were shaped by hand using broad axes and adzes, typically in the 18th and early 19th centuries. They show irregular surfaces with visible axe marks and tool patterns. Rough-sawn beams were cut by mechanical sawmills (circular saws or band saws) and show uniform saw marks with more consistent dimensions. Hand-hewn beams are rarer, more character-rich, and generally more expensive.
Can I visit your yard and select my own beam?
Absolutely. We encourage customers to visit our facility at 37 Linden St, Medford, MA 02155 to hand-select beams. Since every reclaimed beam is unique in character, color, and surface texture, seeing the beams in person is the best way to find the perfect piece. Email info@boston-lumber.com to schedule a visit.