Dunn Lumber
Dunn Lumber is a single-location, full-service building materials retailer and hardware store in Lake Geneva, Wisconsin, serving professional builders, remodelers, and homeowners across southeastern Wisconsin and northern Illinois with lumber, decking, windows, cabinetry, and equipment rentals under the Spahn & Rose parent.
- Company typePrivate
- Founded1894
- HeadquartersLake Geneva, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Dunn Lumber does
Dunn Lumber is a privately held, single-location building materials retailer and hardware store headquartered in Lake Geneva, Wisconsin. Founded in 1894 and operating under the Spahn & Rose Lumber Co. umbrella since February 2019, the company serves professional builders, remodelers, and individual homeowners across Walworth County, Southeastern Wisconsin, and Northern Illinois. The 18,000-square-foot full-service hardware store and 6,000-square-foot showroom carry more than 20,000 SKUs spanning dimensional and engineered lumber, pressure-treated lumber, composite decking (TimberTech, Fiberon), aluminum railing, premium windows (Marvin, Andersen), cabinetry (Shiloh, Dura Supreme), siding, insulation, paint, and fasteners.
The company's revenue model combines transactional retail sales, equipment rentals (construction tools, lawn/garden equipment, and party supplies), delivery services, and fee-based design consultation. Dunn Lumber monetizes primarily through quote-based one-time purchases, supplemented by recurring rental transactions and design service fees. Go-to-market is sales-led, anchored by in-store expertise, a Find-A-Contractor referral directory, and content marketing via an educational blog. Technology plays a supporting rather than central role: partner-integrated tools such as Hover for smartphone-based 3D property measurement and TimberTech Deck Designer augment project estimation and visualization, but no proprietary AI or platform architecture is disclosed.
Customer segments are balanced across three personas (Professional Builders, Remodelers, Homeowners) with no individual account concentration, and a long-tenured workforce (multiple associates with 10-30+ years of tenure) functions as the primary operational differentiator. The company is a subsidiary within Spahn & Rose's portfolio of regional brands, which provides corporate resources and shared vendor relationships but constrains independent expansion decisions.
Dunn Lumber firmographics
Firmographics- Name
- Dunn Lumber
- Legal name
- Dunn Lumber Lumber Co.
- Website
- https://dunnlbr.com
- Company type
- Private
- Founded year
- 1894
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Dunn Lumber is a single-location, full-service building materials retailer and hardware store in Lake Geneva, Wisconsin, serving professional builders, remodelers, and homeowners across southeastern Wisconsin and northern Illinois with lumber, decking, windows, cabinetry, and equipment rentals under the Spahn & Rose parent.
- Ownership category
- akta.pro rank
Dunn Lumber industry classification
Industry- Product category
- Building Materials Retail
- SIC
- Retail-Lumber & Other Building Materials Dealers (5211), Wholesale-Lumber & Other Construction Materials (5030), Lumber & Wood Products (No Furniture) (2400)
- akta.pro primary industry
- Lumber & Timber Retail (Dimensional Lumber, Plywood, OSB) (CRAIAEAA)
- akta.pro secondary industry
- Building Materials & Lumber Distribution (CRAOAFAD)
Keywords
Where Dunn Lumber is headquartered
LocationHeadquarters
- HQ city
- Lake Geneva
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Dunn Lumber business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Building Materials Retail: Retail sales of lumber, hardware, building materials, and related products to professional builders, remodelers, and homeowners through physical retail locations.
- Equipment Rentals: Rental of construction tools, lawn and garden equipment, and party supplies including excavators, log splitters, bounce houses, tents, tables, and more.
- Delivery Services: Delivery service for materials delivered exactly where customers need them.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Quote-based pricing through estimates |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Dunn Lumber product offering
Product offeringCore offering
Dunn Lumber is a single-location building materials retailer selling lumber, engineered wood, decking, railing, windows, doors, siding, insulation, cabinetry, paint, stain, and hardware. It supplements product sales with professional estimates, design consultation, decking plans, delivery, and construction, lawn, garden, and party-equipment rentals for builders, remodelers, and homeowners.
Product overview
Dunn Lumber is a building materials retailer and distributor serving professional builders, remodelers, and homeowners across southeastern Wisconsin and northern Illinois since 1894. The company operates as a single-location full-service building supply center offering an integrated portfolio of building materials, equipment rentals, and professional services. Their product portfolio centers on lumber and structural materials (dimensional lumber, engineered wood, pressure treated lumber), complemented by exterior products (composite decking from TimberTech and Fiberon, pressure treated decking from YellaWood, aluminum railing from Westbury, windows from Marvin and Andersen, siding from Diamond Kote and CertainTeed, and AZEK exterior trim), interior finishes (Shiloh and Dura Supreme cabinetry, paint and stain, insulation from Knauf), and a full-service hardware department. The company enhances its materials offerings with technology-enabled services including Hover 3D measurement tools for property visualization, TimberTech Deck Designer for design planning, and professional design consultations. Additional services include construction and party equipment rentals, delivery, a Find-A-Contractor directory, and a Virtual Home Gallery showcasing completed projects. Dunn Lumber is a subsidiary of Spahn & Rose Lumber Co., acquired in February 2019.
Differentiator
Problem solved
Functional benefit
Products and services
- Dimensional Lumber Standardized structural lumber in species including SPF, cedar, and hardwoods, with treatment options for construction framing and general building applications.
- Engineered Lumber Manufactured wood products including OSB, plywood, MDF, and cross-laminated timber for structural and non-structural construction applications.
- TimberTech Decking Composite and PVC decking materials offering realistic wood aesthetics, low maintenance, fade resistance, and durable outdoor performance.
- Fiberon Decking Composite PE and PVC decking materials designed to resist warping, rotting, and splintering in low-maintenance outdoor living spaces.
- YellaWood Pressure Treated Lumber Pressure-treated pine and kiln-dried-after-treatment lumber using micronized copper preservative for weather resistance and protection against rot and insects.
- Westbury Aluminum Railing Aluminum deck-railing systems in multiple designs, colors, and textures, including Tuscany, Montego, Riviera, Veranda Glass, Verticable, Screenrail, Liberty, and ADA handrail options.
- Deck Railing Systems Railing systems made from aluminum, iron, glass, composite, cable, and wood, with multiple baluster options.
- Marvin Windows Windows in Signature, Elevate, and Essential collections, with wood, fiberglass, and aluminum-clad options for residential and commercial applications.
- Andersen Windows Windows and doors in E-Series, A-Series, 400 Series, 200 Series, and 100 Series lines, with Fibrex composite material options.
- Diamond Kote Siding Prefinished siding system with a 30-Year No Fade Warranty, designed to resist harsh weather, extreme winds, and hail impacts.
- Waudena Exterior Doors Steel and fiberglass entrance systems and garage-door frames, including flat-panel and Shaker styles with glass options.
- AZEK Exterior Products Engineered-polymer trim, moulding, specialty items, siding, and cladding for low-maintenance exterior applications.
- Shiloh Cabinetry Customizable cabinetry with multiple styles, finishes, and smart storage solutions for quality, appearance, and everyday function.
- Dura Supreme Cabinetry Premium cabinetry offered in door styles including Hudson, Silverton, and Highland, with painted, stained-wood, and specialty finishes.
- Insulation Products Building insulation materials, including Knauf products, for residential and commercial applications.
- Paint and Stain Interior and exterior paint, stain, and sealant products for wood protection and decorative finishes.
- Hardware Full-service hardware department with more than 20,000 products, including power tools, plumbing and electrical parts, and fastening items.
- Rental Equipment Construction tools, lawn and garden equipment, and party supplies available for rent, including excavators, lifts, compressors, tents, and inflatables.
- Decking Plans Professional deck-planning and design consultation for outdoor living projects.
- Design Consultation Expert product consultation for cabinetry, windows, doors, siding, and other building materials to support customer selection.
- Delivery Service Delivery of lumber, building materials, and other purchased products to project sites and homes.
Quantifiable outcome
- Top Workplace recognition by Des Moines Register in 2024
Companies that use Dunn Lumber
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Dunn Lumber technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Dunn Lumber partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered flagship, core and minor.
- Spahn & Rose Lumber Co.flagshipSpahn & Rose acquired Dunn Lumber on February 28, 2019. Parent company provides resources, corporate structure, and network benefits including charitable foundation established in 1950 that has donated over $1.5M to nonprofits in the last decade.
- HovercorePartnership with Hover for 3D property measurement and visualization technology. Allows customers to take smartphone photos that transform into accurate 3D measurements and models for siding, roofing, and interior projects. Helps eliminate errors, site revisits, and rework without special training or equipment.
- TimberTechcoreAuthorized dealer for TimberTech composite decking, railing, and AZEK exterior products. TimberTech offers capped polymer (AZEK), capped composite (PRO), and budget-friendly (EDGE) decking options along with professional loyalty rewards programs.
- Simpson Strong-TiecorePreferred vendor for structural connectors and fasteners. Provides engineered solutions for deck construction and outdoor projects including the Outdoor Accents Sage System for pergola installation.
- Marvin WindowscoreAuthorized dealer for Marvin windows including Signature (Ultimate), Elevate, and Essential collections. Provides window consultation services with decades of experience.
- Andersen WindowscoreAuthorized dealer for Andersen Windows including E-Series, A-Series, 400 Series, 200 Series, and 100 Series product lines. #1 trusted window and door brand per 2020 contractor surveys.
- Dura Supreme CabinetrycorePreferred cabinetry vendor featuring Dura Supreme products showcased in virtual home galleries. Includes various door styles and finishes for kitchen, bath, and custom built-ins.
- YellaWoodcoreLocal dealer for Real YellaWood pressure treated pine lumber and KDAT (Kiln-Dried After Treatment) products. YellaWood is certified as Environmentally Preferable Product with lifetime limited warranty on pressure treated products.
- Wausau Supply Co.coreDealer for Wausau Supply Co. products including Diamond Kote siding (30-Year No Fade Warranty), Waudena exterior doors, and Taylor Entrance Systems. Wausau is 100% Employee-Owned and established in 1947.
- BlueLinxcoreDealer for BlueLinx building products distributor offering PrimeLinx primed products, MoistureShield composite decking (only wood composite that can be installed ground-level), and Regal Ideas aluminum railing.
- Woolf DistributingminorRegional distributor for Westbury Aluminum Deck Railing products. Provides deck railing systems and balusters for Midwest display showrooms.
- Knauf InsulationcoreDealer for Knauf Insulation products for residential and commercial building insulation needs. Products designed for energy efficiency and sustainability.
- Cameron Ashley Building ProductscoreDealer for Cameron Ashley products including Rollex aluminum soffit, CertainTeed roofing (300+ options), and Knauf insulation. Cameron Ashley is a leading omni-channel building products distributor with 45+ distribution centers.
- UFP Retail Solutions (Universal Forest Products)coreDealer for UFP Retail Solutions products including Deckorators outdoor living (composite decking, railing, balusters), ProWood pressure treated lumber (MCA technology, lifetime warranty), and UFP Edge interior/exterior design products.
- FiberoncoreDealer for Fiberon composite and PVC decking, railing, and cladding products. Fiberon focuses on sustainable outdoor living with products that won't warp, rot, or splinter.
- Westbury Aluminum RailingcoreFeatured vendor partner for Westbury aluminum deck railing systems. Offers multiple series (Tuscany, Montego, Riviera, Veranda Glass, Verticable, Liberty) for residential and commercial applications.
Scale indicators7 records
Recent moves6 records
Expansion highlights5 records
Dunn Lumber competitors and assessment
Company assessmentBroad incumbents
- Menards: Midwest-based home improvement big-box retailer and a primary competitor for DIY homeowners and small contractors in Dunn's service area. Comparable product categories (lumber, building materials, hardware, rentals) but operating at significantly larger scale with nationwide pricing power.
- Carter Lumber: Regional chain of lumber yards and building material centers across the Midwest and Mid-Atlantic serving professional builders and homeowners. Comparable in product mix, customer base, and yard-based retail model, though with broader geographic reach.
- 84 Lumber: National lumber and building materials dealer chain serving professional contractors and DIY customers across the US. Comparable business model with a multi-yard footprint, contractor-focused sales, and similar product categories, though operating at significantly larger scale than Dunn.
- Lowe's: National home improvement big-box retailer offering comparable building materials, lumber, and contractor services. Competes with Dunn for both pro and DIY segments and exerts ongoing pricing pressure on regional independent dealers.
- Home Depot: National home improvement big-box retailer competing directly with Dunn for DIY homeowners and small contractor accounts. Overlapping product categories across lumber, hardware, building materials, and rentals, with structural cost advantages from scale and private-label programs.
- Spahn & Rose Lumber Co. Dunn Lumber's parent company since the 2019 acquisition, Spahn & Rose operates multiple lumber yards across the Midwest under brands including City Lumber, Metro Building Products, and Still Lumber. Directly comparable as a regional lumber and building materials retailer with similar product mix and contractor focus.
Others
- Wausau Supply Co. 100% employee-owned wholesale distributor of building products that supplies Dunn Lumber with Diamond Kote siding, Waudena doors, and Taylor entrance systems. Comparable because they operate in the same regional Midwestern supply chain and serve overlapping independent dealer customers.
Direct peers
- Metro Building Products: Sister company under Spahn & Rose offering lumber and building materials with a similar dealer model. Directly comparable in product mix and contractor/professional customer orientation, although serving different metro markets.
- Still Lumber: Sister company under the Spahn & Rose umbrella operating as a regional lumber and building materials dealer. Direct peer in scale, product mix (lumber, hardware, contractor services), and customer base, making it a clean apples-to-apples comparison for Dunn's operating model.
- City Lumber: Another Spahn & Rose subsidiary operating as a regional building materials yard. Direct peer sharing the same corporate infrastructure, vendor partnerships, and customer segments as Dunn Lumber, providing insight into yard-level performance benchmarks.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Dunn Lumber social profiles
Digital presenceDunn Lumber financial estimates
Financial estimateRevenue estimate
Valuation estimate
Dunn Lumber leadership team
Management profileNumber of profiles
Profiles4 records
Dunn Lumber funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Dunn Lumber 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 Dunn Lumber
What does Dunn Lumber do?
Dunn Lumber is a single-location building materials retailer selling lumber, engineered wood, decking, railing, windows, doors, siding, insulation, cabinetry, paint, stain, and hardware. It supplements product sales with professional estimates, design consultation, decking plans, delivery, and construction, lawn, garden, and party-equipment rentals for builders, remodelers, and homeowners.
Is Dunn Lumber a public or private company?
Dunn Lumber is a private company. It is classified as corporate owned and is currently operating.
When was Dunn Lumber founded?
Dunn Lumber was founded in 1894. It employs 11 to 50 people.
Where is Dunn Lumber based?
Dunn Lumber is headquartered in Lake Geneva, United States, in the North America region.
How does Dunn Lumber make money?
Three revenue lines are on record. Building Materials Retail is the primary driver. The others are equipment Rentals and delivery Services.
Who are Dunn Lumber's main competitors?
Broad incumbents on record are Menards, Carter Lumber, 84 Lumber, Lowe's, Home Depot and Spahn & Rose Lumber Co.. Wausau Supply Co. is listed as an others. Direct peers are Metro Building Products, Still Lumber and City Lumber.
Does Dunn Lumber have an API?
No public API is recorded for Dunn Lumber.
What industry is Dunn Lumber in?
Dunn Lumber's product category is Building Materials Retail. Its primary akta.pro industry code is CRAIAEAA, Lumber & Timber Retail (Dimensional Lumber, Plywood, OSB), with a secondary code of CRAOAFAD, Building Materials & Lumber Distribution. Its SIC code is 5211.