The short answer
We don't publish a price for mantels, because the honest range would be wide enough to be useless. What we can tell you is exactly which decisions move it.
Four things account for most of the spread: the species of the slab, how thick it reads, whether it mounts on corbels or on concealed steel, and what the surround is made of.
What drives cost
Species. Black walnut and mesquite are premium hardwoods. White oak and knotty alder are more moderate. Reclaimed timber moves with what the mill actually has, so it varies month to month.
Thickness. A thicker mantel reads heavier in the room and needs a heavier slab, which is where the material cost concentrates.
Mount. A concealed steel mount into studs is more work than a corbel, worth it for a floating look, but factor it in.
Site conditions. Uneven stucco, stone veneer, or a working firebox add scribe and clearance work.
What we quote
A written quote defines the project scope, selections, and price. Changes in scope, materials, or selections may change the total. Any expiration or material-price conditions will be stated in the quote.
If we spot something during the on-site measure that affects the build, we tell you before we start.