Grothouse
Grothouse manufactures custom luxury wood countertops, butcher blocks, tables, and bar tops from over 60 wood species. Founded in 1997, the Germansville, Pennsylvania company serves high-end residential and commercial projects exclusively through a North American design-trade partner network.
- Company typePrivate
- Founded1997
- HeadquartersGermansville, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Grothouse does
Grothouse is a Pennsylvania-based custom manufacturer of luxury wood surfacing, founded in 1997 by Paul Grothouse as Grothouse Lumber and operating from a 12,000 sq ft eco-friendly facility in Germansville. The company produces bespoke wood countertops, butcher blocks, tables (Infinite, Tavolo, and Taglio series), bar tops, floating shelves, and stair treads, drawing on over 60 wood species, three construction styles (End Grain, Edge Grain, Flat Grain), and 40+ edge profiles. Technical differentiation rests on proprietary finishes: Durata® waterproof permanent finish (a trade secret formulation not sold standalone), The Original Oil™ FDA-approved food-safe mineral oil, Pigmented Oil finishes Bianca™ and Nera™, and the Anvil™ Metal Finish applied in eight variants with real metal particles. Exclusive engineering capabilities include the Qi Inductive Hidden Charging System integrated into wood surfaces, the Pastore™ waterfall countertop design, the Resinata™ sustainable surface platform, and curated species Kensington™ and Saxon Wood™.
The company's revenue model is built entirely around custom one-time project-based manufacturing with quote-based pricing that varies by species, construction, dimensions, edge profile, finish, and feature selections. Grothouse operates a strict trade-first go-to-market strategy: it sells exclusively through professional interior designers, certified kitchen and bath designers, architects, builders, and authorized dealers, and prospective dealers must purchase $800 sample kits (solid wood and Anvil) to be onboarded. The online storefront (store.glumber.com) handles only finishing and maintenance supplies, not finished goods. Geographic reach is North America (US and Canada), supported by outside and inside sales teams and sustained by NKBA CEU-certified trade education, an annual KBIS presence, and booth collaborations with kitchen-and-bath OEM brands including Monogram, Häfele, nobilia North America, Wellborn Cabinet, Belwith Products, BlueStar, RA Design, and Architectural Grille.
Grothouse's competitive moat combines proprietary finishing technology held partly as trade secrets, deep product customization capability, near-30-year brand recognition in design media (House Beautiful, This Old House, Architectural Digest), and an established trade-partner ecosystem. The company provides a lifetime warranty on all products and markets a broad portfolio of registered trademarks. Without public financial disclosure, no institutional investment, and no parent company, the business appears as a stable founder-owned specialty manufacturer that funds growth organically and reinvests in product and channel development across the luxury residential and commercial segments it serves.
Grothouse firmographics
Firmographics- Name
- Grothouse
- Legal name
- Grothouse
- Website
- https://glumber.com
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Grothouse manufactures custom luxury wood countertops, butcher blocks, tables, and bar tops from over 60 wood species. Founded in 1997, the Germansville, Pennsylvania company serves high-end residential and commercial projects exclusively through a North American design-trade partner network.
- Ownership category
- akta.pro rank
Grothouse industry classification
Industry- Product category
- Custom Wood Countertops and Surfacing
- NAICS
- Veneer, Plywood, and Engineered Wood Product Manufacturing (3212), Wood Product Manufacturing (321), All Other Miscellaneous Wood Product Manufacturing (321999)
- SIC
- Millwood, Veneer, Plywood, & Structural Wood Members (2430), Lumber & Wood Products (No Furniture) (2400)
- akta.pro primary industry
- Hardwood Plywood & Decorative Panels Manufacturing (IMAMACAB)
- akta.pro secondary industries
- Wood Flooring & Wood Veneer Products (IMADADAI), Wood Mouldings, Millwork & Trim (IMADADAG)
Keywords
Where Grothouse is headquartered
LocationHeadquarters
- HQ city
- Germansville
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Grothouse business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Custom Wood Countertops: Bespoke custom-built wood countertops manufactured to exact specifications for individual projects. Pricing is quote-based, determined by wood species, construction style, dimensions, edge profiles, finishes, and custom options. One-time purchase model per project.
- Butcher Block Surfaces: Custom butcher block countertops and islands in end grain construction. Sold as one-time custom-built products with options for various wood species and finishes.
- Custom Wood Tables: Heirloom-quality custom solid wood tables including dining tables (Infinite and Tavolo series) and kitchen preparation tables (Taglio series). Sold through trade professionals with custom sizing and component selection.
- Bar Tops: Custom wood bar tops for commercial and residential applications, including the Synthesis Bar Rail molding system.
- Architectural Wood Surfaces: Floating shelves, stair treads, and other architectural wood elements custom manufactured per project.
- Anvil™ Metal Finish Services: Application of Anvil™ metal finish to wood surfaces or composite substrates. Available in 8 metal color options for residential, commercial, and outdoor applications.
- Trade/Dealer Program Revenue: Revenue from authorized dealer/trade partner network, which requires purchase of product samples ($800 solid wood, $800 Anvil) to become an official dealer.
- Paul Grothouse Collection – Table Lines: The Paul Grothouse Collection of solid wood tables (Infinite, Tavolo, Taglio series) marketed under the owner Paul Grothouse's name, sold exclusively through the professional design trade with 3-4 week lead time.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Custom project-based pricing – all products |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels9 records
Grothouse product offering
Product offeringCore offering
Grothouse manufactures custom-built luxury wood surfacing products including countertops, butcher blocks, tables, bar tops, floating shelves, and stair treads. Products are made-to-order in over 60 wood species across three construction styles (End Grain, Edge Grain, Flat Grain) with 40+ edge profile options and proprietary finishes such as Durata® waterproof finish, Original Oil™, Pigmented Oils (Bianca™ and Nera™), and Anvil™ metal finish. Sales are conducted exclusively through a professional design trade partner network serving the high-end residential and commercial markets across North America.
Product overview
Grothouse is a manufacturer of luxury custom wood surfaces offering a comprehensive portfolio of products centered around custom wood countertops, butcher blocks, tables, bar tops, floating shelves, and stair treads. The product line is organized around core surface products (wood countertops, butcher blocks, tables, bar tops, shelving, stair treads) enhanced by proprietary finishes (Durata® waterproof finish, Original Oil™, Pigmented Oil finishes including Bianca™ and Nera™) and exclusive innovations (Anvil™ Metal finishes, Pastore™ waterfall designs, Qi wireless charging systems, Resinata™ sustainable surfaces). Curated wood species (Kensington™, Saxon Wood™) and specialty items (Prestige™ Chef's Box, Tyler Florence collaboration table) round out the offering. The company operates on a made-to-order basis with over 60 wood species and multiple construction styles (end grain, edge grain, flat grain).
Differentiator
Problem solved
Functional benefit
Brands
- Durata®: Proprietary waterproof wood countertop finish - a permanent finish that is water resistant, stain resistant, and chemical resistant.
- Original Oil™
- Anvil™ Metal
- Pastore™
- Resinata™
- Synthesis Bar Rail™
- Pigmented Oil Finishes
- Paul Grothouse Collection
- Taglio Series
- Infinite Series
- Tavolo Series
- Tyler Florence Mahogany Butcherblock Work Table
Products and services
- Custom Wood Countertops Custom-built wood countertops available in over 60 wood species with three construction styles (End Grain, Edge Grain, Flat Grain) and over 40 edge profile options, manufactured to project specifications for residential and commercial kitchens and bathrooms.
- Butcher Block Countertops Premium butcher block surfaces designed for kitchen islands and dining tables, featuring End Grain construction ideal for direct food preparation, with options for patterns and inlays and integrated bowls, juice grooves, knife blocks, trash holes, and trivets.
- Custom Wood Tables Bespoke solid wood tables including the Infinite series (customizable), Tavolo series (designer dining tables), and Taglio series (kitchen preparation tables), sold exclusively through the professional design trade with 3-4 week lead time.
- Bar Tops
- Custom Floating Shelves
- Custom Wood Stair Treads
- Durata® Waterproof Permanent Finish
- The Original Oil™ Finish
- Bianca™ and Nera™ Pigmented Oil Finishes Exclusive pigmented oil finishes in light (Bianca) and dark (Nera) shades creating a flat, less-than-matte finish. Can be used on any of the 60+ wood species and all three construction styles. Food safe and water resistant.
- Anvil™ Metal Countertops
- Synthesis Bar Rail™
- Pastore™ Countertops & Tables
- Qi Inductive Hidden Charging System Integrated wireless charging system for wood and Anvil™ products using Qi inductive technology, enabling wire-free device charging through the wood surface with no visible hardware.
- Resinata™ Sustainable solid wood countertop product line, introduced at KBIS 2024.
- Tyler Florence Mahogany Butcherblock Work Table Collaboration product with chef Tyler Florence featuring a mahogany butcherblock kitchen work table, marketed as part of the Grothouse Exclusives line.
Quantifiable outcome
- Lifetime warranty on all products backed by a company entering its 30th year of operation
- +2 more outcomes
Companies that use Grothouse
Customer profileNamed customers15 records
Segments4 records
Ideal customer profiles3 records
Grothouse technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
Grothouse partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- BlueStarcoreGrothouse collaborated with BlueStar at KBIS 2026 to craft booth exhibition space, integrating Grothouse luxury wood surfaces with BlueStar professional kitchen equipment in a collaborative trade show display.
- RA DesignminorGrothouse collaborated with RA Design at KBIS 2026 to craft booth exhibition space, showcasing integration of luxury wood surfaces with RA Design's product offerings at the Kitchen and Bath Industry Show.
- Architectural GrilleminorGrothouse collaborated with Architectural Grille at KBIS 2026 to craft booth exhibition space, demonstrating complementary design aesthetics between architectural grillework and Grothouse wood surfacing.
- MonogramcoreGrothouse partnered with Monogram at KBIS 2025 and KBIS 2026, crafting booth exhibitions featuring luxury wood surfaces. At KBIS 2023, a custom Walnut Butcherblock table was featured in the Monogram booth in collaboration with Monogram Creative Director Richard T. Anuszkiewicz. The partnership showcases integration of Grothouse's wood surfacing with Monogram's luxury kitchen appliances.
- HäfelecoreGrothouse partnered with Häfele at KBIS 2025, a leading manufacturer of hardware and functional components for furniture and building interiors. The partnership highlights integration of Grothouse wood surfaces with Häfele's functional hardware solutions.
- nobilia North AmericacoreGrothouse partnered with nobilia North America at KBIS 2025. nobilia is a leading European kitchen cabinetry manufacturer, and the partnership demonstrates integration of Grothouse wood countertops with nobilia's premium cabinetry systems.
- Wellborn Cabinet, Inc.coreGrothouse partnered with Wellborn Cabinet at KBIS 2025, a premium American cabinetry manufacturer. The collaboration showcases Grothouse wood surfaces paired with Wellborn's cabinetry collections.
- Belwith Products (Keeler Brass Company)coreGrothouse partnered with Belwith Products (including Keeler Brass Company) at KBIS 2025 and KBIS 2023. At KBIS 2025, Keeler Brass Company and Grothouse collaborated to display luxury brass hardware as elegant jewelry atop a sculptural custom Pastore waterfall design. Belwith Keeler featured Grothouse wood surfaces in their booth at KBIS 2023.
- House Beautiful – Whole Home ConceptcoreGrothouse participated as a project partner in House Beautiful's Whole Home Concept for 2022, renovating a historic Tudor in Chastain Park, Atlanta, Georgia. The company worked with top designers across the country, providing wood surfaces for multiple rooms in the renovated home.
- Tyler FlorencecoreChef and designer Tyler Florence collaborated with Grothouse to develop the exclusive Mahogany Butcherblock Work Table, marketed as part of the Grothouse Exclusives line. This is a co-branded product reflecting collaboration between the celebrity chef and Grothouse's craftsmanship.
- Richard T. Anuszkiewicz – Monogram Creative DirectorcoreRenowned interior designer and Monogram Creative Director Richard T. Anuszkiewicz has collaborated with Grothouse on multiple Monogram booth installations at KBIS. Anuszkiewicz values quality, authentic materials, and fine craftsmanship, which aligns with Grothouse's brand positioning. Featured in the Monogram booth is a custom Walnut Butcherblock table.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
Grothouse competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Grothouse social profiles
Digital presenceGrothouse financial estimates
Financial estimateRevenue estimate
Valuation estimate
Grothouse leadership team
Management profileNumber of profiles
Profiles2 records
Grothouse funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Grothouse M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Grothouse
What does Grothouse do?
Grothouse manufactures custom-built luxury wood surfacing products including countertops, butcher blocks, tables, bar tops, floating shelves, and stair treads. Products are made-to-order in over 60 wood species across three construction styles (End Grain, Edge Grain, Flat Grain) with 40+ edge profile options and proprietary finishes such as Durata® waterproof finish, Original Oil™, Pigmented Oils (Bianca™ and Nera™), and Anvil™ metal finish. Sales are conducted exclusively through a professional design trade partner network serving the high-end residential and commercial markets across North America.
Is Grothouse a public or private company?
Grothouse is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Grothouse founded?
Grothouse was founded in 1997. It employs 11 to 50 people.
Where is Grothouse based?
Grothouse is headquartered in Germansville, United States, in the North America region.
How does Grothouse make money?
Eight revenue lines are on record. Custom Wood Countertops are the primary driver. The others are butcher Block Surfaces, custom Wood Tables, bar Tops, architectural Wood Surfaces, anvil™ Metal Finish Services, trade/Dealer Program Revenue and paul Grothouse Collection – Table Lines.
Does Grothouse have an API?
No public API is recorded for Grothouse.
What industry is Grothouse in?
Grothouse's product category is Custom Wood Countertops and Surfacing. Its primary akta.pro industry code is IMAMACAB, Hardwood Plywood & Decorative Panels Manufacturing, with a secondary code of IMADADAI, Wood Flooring & Wood Veneer Products. Its NAICS code is 3212 and its SIC code is 2430.