Custom wood fireplace mantles

The architectural centerpiece of the room, made to measure in thermally modified hardwood, hand-hewn reclaimed beams or live-edge Hawaiian hardwood slabs.

Fireplace mantles
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Made to measure in reclaimed, thermowood or live-edge slab.

A mantle sits right above the heat, so it has to stay put. Thermal modification and decades of air-drying in reclaimed timber lock the wood structure in place, so our mantles resist cracking, bowing and twisting from the fire below.

mantles

Heat stable

Resists cracking, bowing and twisting.

Made to measure

Shelf depth, length and edge cut to spec.

Three materials

Thermowood, reclaimed beams or live-edge slabs.

Indoor or outdoor

Weather-ready for patio fireplaces.
Why choose our mantles

The defining touch for the heart of the home

Each mantle is precision-cut and finished to your specification, including shelf depth and edge style, and fitted to stone, brick or plaster surrounds. Heat-resistant natural oils soak into the wood to bring out the grain and protect against soot, Ash and wear, leaving a mantle that is nearly maintenance-free.

Heat stable

Thermally modified or long air-dried timber.

Custom sized

Length, depth and edge to your drawings.

Natural oil finish

Protects against soot, Ash and wear.

Outdoor ready

For patio fireplaces and fire pits.

Profiles, species

Material options

Knot-free thermowood for a minimalist modern look, hand-hewn reclaimed beams for mountain-modern texture, or Hawaiian hardwood live-edge slabs for a one-of-a-kind statement. Edges clean-cut, distressed or live.

Custom Wood Mantles: The Architectural Centerpiece (ThermoWood Millworks)

Hand-hewn reclaimed

Rugged historic beams with axe marks and checks.
Custom Wood Mantles: The Architectural Centerpiece (ThermoWood Millworks)

Clean modern

Knot-free thermally modified hardwood with crisp edges.

Heat and steam only, no chemicals, made in the USA

Thermal modification uses only heat and steam. Our thermowood is sourced from certified renewable forests and milled in the USA; the boards are 100% natural, fully recyclable and can go to bio-energy at end of life.

Rugged

Reclaimed beam mantles

Hand-hewn beams from old barns and mills, each with its own history, sized to your fireplace.

Products (ThermoWood Millworks)
Custom Wood Mantles: The Architectural Centerpiece (ThermoWood Millworks)
Minimal

Thermowood mantles

Knot-free, heat-stable thermally modified hardwood with a clean or softly eased edge.

Statement

Live-edge slab mantles

Hawaiian Koa, Monkeypod and other live-edge slabs for a natural, organic shelf.

monkey pod wood slab
Products (ThermoWood Millworks)
Reclaimed beam

Hand-hewn texture

Custom Wood Mantles: The Architectural Centerpiece (ThermoWood Millworks)
Thermowood

Clean and modern

monkey pod wood slab
Live-edge slab

Natural edge

Custom Wood Mantles: The Architectural Centerpiece (ThermoWood Millworks)
Floating shelf

Hidden fixing

Materials

3

Edges

Clean, distressed, live

Fits

Stone, brick, plaster

Use

Indoor and outdoor

Edge styles

Finish options

Choose an edge and finish for your mantle. All mantles are finished with heat-resistant natural oils.

Crisp square edges for modern and minimalist rooms.

Softened, worn edges and texture for farmhouse and rustic interiors.

The natural outline of the tree kept on the front edge.

Standard profiles

13 profiles, sizes and drawings

Standard board sizes for thermally modified Ash, Ayous, Iroko, Pine, Western Red Cedar, VG Hemlock, Shou Sugi Ban style and Rhino Wood. Every order is milled to the thickness, width and profile the project needs.

ThicknessWidthLength
13/16″3-5/8″, 4-13/16″, 5-9/16″2.6 to 9.8 ft
1″3-5/8″, 4-13/16″, 5-9/16″2.6 to 9.8 ft
1-5/8″3-5/8″, 4-13/16″, 5-9/16″2.6 to 9.8 ft

A fire-retardant treatment backed by ASTM and ULC test reports is available on request; classification depends on species, profile and application.

Opus profile drawing

Thickness: 1-5/8"
Width: 3-3/4" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Ventura profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Lux profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Silva profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Ventus profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Terra profile drawing

Thickness: 1"
Width: 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Fortis profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Serensus profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Aqua profile drawing

Thickness: 1-1/8" to 1-1/4"
Width: 4-5/8" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Luna profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Veritas profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Solis profile drawing

Thickness: 1"
Width: 3-3/4" to 4-3/4"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Vivus profile drawing

Thickness: 9/16" to 13/16"
Width: 3-9/16" to 5-1/2"
Length: 2.6 to 10.2 ft (0.8 to 3.1 m)

Mantle questions

Common questions

Installation guides for cladding, decking and porch flooring are on our guides page.

Thermally modified and long-dried reclaimed timber have very stable cell structure, so they resist cracking, bowing and twisting above a working fireplace.

Yes. We cut length, shelf depth and edge style to your measurements and fit to stone, brick or plaster.

Yes, thermowood and reclaimed mantles suit outdoor patio fireplaces.

Yes. A fire-retardant treatment backed by ASTM and ULC test reports is available; classification depends on species, profile and application.

Yes, we ship worldwide. Orders go by freight across the US and overseas, with weekly truck delivery across Los Angeles, Orange County and San Diego.

Download the install guides