Inland Concrete Products

What Inland Concrete Products does

Inland Concrete Products, Inc. (ICP) is a privately held, US-based manufacturer of concrete reinforcement accessories headquartered in Fontana, California. The company produces a comprehensive line of rebar supports and spacers — including concrete dobies (plain, wire, combination, and dowel), plastic chairs (high chairs, on-grade square chairs, tilt chairs), wheels (locking and space), slab bolsters, sand plates, and form spreaders — used in on-grade, tilt-up, bridge deck, and infrastructure concrete construction. Manufacturing relies on a 4000-5000 PSI mix design for concrete products and injection molding with engineered resins for plastic bar supports, with products 100% made in the USA using 100% recycled plastic. Certifications include DOT approval in most states and CRSI Class 1 Bar Support for combination dobies.

ICP sells exclusively through a B2B dealer network serving rebar fabricators, general contractors, and building supply dealers across the western United States and nationwide, with net 30 payment terms and a quote-based pricing model (no public pricing). Founded in 2011 by Doug Hartzheim and John Gilner — both former owners of the predecessor Aztec Concrete Products (founded 1966) — ICP initially manufactured exclusively for Dayton Superior Corporation before broadening its dealer base from 2015 onward and launching a full plastic bar support line in 2019. The company now offers a premium ProSeries sub-brand (ProChair, ProTilt, ProPaving) targeting specialty applications. ICP claims the largest inventory of dobies in the country with on-demand shipment and same-day pickup from its Fontana facility.

Name

Inland Concrete Products

Legal name

Inland Concrete Products, Inc.

Website

https://inlandconcreteproducts.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Inland Concrete Products is a Fontana, California-based manufacturer of concrete reinforcement accessories — including dobies, plastic rebar chairs, slab bolsters, and form spreaders — selling through a nationwide B2B dealer network to rebar fabricators, general contractors, and building supply dealers.

Ownership category

akta.pro rank

Product category

Concrete Reinforcement Accessories

NAICS

Other Concrete Product Manufacturing (327390), Plastics and Rubber Products Manufacturing (326)

SIC

Concrete Products, Except Block & Brick (3272), Plastics Products, Nec (3089)

akta.pro primary industry

Concrete Reinforcement Accessories & Fibers (IMADAAAF)

Keywords

• Concrete rebar supports
• Concrete reinforcement accessories
• Rebar spacers
• Concrete dobies
• Plastic bar supports

Headquarters

HQ city

Fontana

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Concrete Accessories Sales: The company manufactures and sells concrete reinforcement accessories including dobies, plastic spacers, slab bolsters, form spreaders, and sand plates. Products are sold through dealers to contractors and rebar fabricators. Standard payment terms are net 30 days.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Inland Concrete Products manufactures and sells concrete reinforcement accessories, including concrete dobies (plain, wire, combination, and dowel) made from a 4000+ PSI mix, and plastic rebar supports such as high chairs, tilt chairs, on-grade square chairs, locking wheels, and space wheels produced via injection molding of engineered resins. The portfolio also covers slab bolsters, form spreaders, sand plates, screed chairs, and a premium ProSeries line (ProChair, ProTilt Chair, ProPaving Chair). All products are made in the USA, with plastics using 100% recycled material, and are sold through a dealer network serving rebar fabricators, contractors, and building supply dealers.

Product overview

Inland Concrete Products manufactures a comprehensive line of concrete reinforcement accessories, primarily serving the construction industry with rebar supports and spacers. The product portfolio consists of two main categories: (1) Concrete Dobies family including Plain, Wire, Combination, and Dowel Dobies for on-grade rebar support with 4000+ PSI compressive strength; (2) Plastic Spacers including High Chairs, On-Grade Square Chairs, Tilt Chairs, Locking Wheels, Space Wheels, and Sand Plates for versatile rebar spacing applications. The premium ProSeries line includes ProChair®, ProTilt Chair®, and ProPaving® Chairs featuring engineered designs with enhanced strength, stacking efficiency, and specialized configurations. Additional products include Slab Bolster for rebar support and Form Spreaders for concrete forming applications. All products are 100% made in the USA using 100% recycled plastic materials.

Differentiator

Problem solved

Functional benefit

Brands

• ProPaving Chair: High-strength plastic chair for foundations, slabs, patios, driveways, on-grade applications, and highway/road construction with snap head accommodating #3 to #5 bar.
• ProChair
• ProTilt Chair

Products and services

• Plain Concrete Dobies Concrete rebar supports ranging from 2"x2"x3/4" up to 6"x6"x6", available with or without tie wire. Manufactured in 4000 PSI mix design or higher strength for custom jobs. D.O.T. approved in most states. Sold to rebar fabricators, contractors, and building supply dealers.
• Wire Dobies Concrete dobies with two 16-gauge wires protruding from the top for secure attachment to rebar. Cover heights from 3/4" to 4". Meets standard PSI specs. Used by rebar fabricators and placers.
• Combination Dobies Concrete dobies with grooves that create multiple cover heights from a single brick unit. Cover heights from 2.5" to 4". Standard 4000 PSI mix, CRSI Class 1 Bar Support certified, D.O.T. approved in most states. Used where multiple cover heights are needed from one brick.
• Dowel Dobies Concrete dobies that support two mats of reinforcement when used with 90-degree bend rebar dowel. Dowel hole accepts #4 rebar with depth 1/2" from bottom. Cover heights from 3" to 5". Used in slab-on-grade and pavement applications.
• High Chairs Plastic rebar support chairs ranging from 3" to 14" in height. Feature innovative Z-top design for maximum strength and ease of use, wide stable base, and large spacing between legs for concrete flow. Used in elevated slab and deck applications.
• On-Grade Square Chairs Plastic chairs ranging from 1.5" to 6.25" height with two cover heights per chair. Wide stable base designed for heavy loads in on-grade applications. Easy-to-read height markers. Used in slab-on-grade concrete construction.
• Tilt Chairs Plastic chairs from 3/4" to 6" height designed for tilt-up buildings, precast, and architectural applications. Wide stable base with footprint designed for architectural applications while carrying necessary loads.
• Locking Wheel 3" locking wheel covering a range of bar sizes from #3 to #6 bar for foundations, bridge decks, parking structures, caissons, and precast applications. Secure zip tie installation.
• Space Wheel Rebar spacers from 3/4" to 3" cover designed for ease of installation. Compatible with typical rebar sizes and #2 mesh. Compression fit or lockable tabs for secure connection.
• Sand Plate Accessory plate that attaches to high chairs and tilt chairs for on-grade applications. Provides a large, stable base for proper chair and rebar placement.
• Slab Bolster Rebar support from 3/4" to 3" height. Features a strong coupler and form-guard leg tip design. Available in 10-foot lengths (bundled) or 2.5-foot lengths (boxes), with or without staple down legs. Used in slab reinforcement applications.
• Form Spreaders Form supports used in bridge decks and concrete forming applications. 3"x3" dimensions in lengths from 5.5" to 48". Reinforced with rebar for longer sizes. Used by general contractors.
• ProChair® High-performance plastic bar support from 1" to 7.75" cover height. Features excellent stacking and package density, minimal footprint, and easy-to-read height markers. Designed for bridge decks, parking structures, foundations, tilt-up, and precast applications.
• ProTilt Chair® High-strength chair from 3/4" to 3" cover height with quarter-inch increments. Each size has two cover heights. Extra-wide footprint for form-work, mud slabs, and tilt-slab applications. Accommodates mesh to #11 bar.
• ProPaving® Chair
• Screed Chairs Adjustable screed support chair with base, adjustable ring, and receiver. Fits 2x4 lumber and 1.5" diameter pipe screeds. Up to 1.5" height adjustment. 300 lb safe working load compression.

Quantifiable outcome

• 4000-5000 PSI compressive strength for regular dobies
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• Dayton Superior CorporationcoreChannel Partner/ Reseller/ Distributor · 1 January 2011Upon formation in 2011, Inland Concrete Products initially manufactured Dobies exclusively for Dayton Superior Corporation before expanding to serve other dealers in the western region.

Scale indicators4 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• Dayton Superior Corporation: Dayton Superior is a leading North American manufacturer of concrete accessories, including rebar supports, dobies, and forming products. It was ICP's original exclusive manufacturing partner in 2011 and remains a direct competitor in the same dealer-channel go-to-market for rebar fabrication accessories.
• Hohmann & Barnard, Inc. Hohmann & Barnard manufactures masonry and concrete accessories, including rebar supports, joint reinforcement, and anchors. It directly competes with ICP in the concrete reinforcement accessories category, serving similar contractor and dealer customers across North America.
• Wire-Bond: Wire-Bond manufactures welded wire reinforcement and rebar accessories including chairs, bolsters, and supports. It is a direct competitor in the rebar fabrication accessories category, serving similar rebar fabricator and contractor customers through dealer distribution.
• Williams Form Engineering Corp. Williams Form produces concrete anchoring and rebar accessories including high chairs, dobies, and bolsters. It competes directly with ICP across the rebar support product line, particularly on infrastructure and DOT-grade work.

Regional players

• Capital Concrete Products, Inc. Capital Concrete Products is a regional manufacturer of concrete accessories including dobies and rebar supports, primarily serving the Mid-Atlantic U.S. It is comparable to ICP in product mix but operates on a smaller, geographically narrower footprint.

Broad incumbents

• Leviat (CRH plc): Leviat is the global engineered accessories brand of CRH, offering a broad portfolio of concrete, masonry, and rebar connection products including the legacy Conac and Meadow Steel lines. It competes with ICP in rebar supports and accessories as part of a much wider construction products portfolio.
• Target Products Ltd. Target Products is a Canadian concrete products manufacturer with a broad line including rebar supports, grouts, and forming accessories. It overlaps with ICP in rebar support products while serving a wider concrete products customer base.
• Quikrete Holdings, Inc. Quikrete is a large North American manufacturer of packaged concrete, cement, and masonry products, including a range of concrete accessories. It is a broad incumbent that competes at the dealer level across multiple concrete product categories including rebar supports.

Emerging players

• BarSplice Products, Inc. BarSplice manufactures mechanical rebar splicing and connection systems, and complementary rebar accessories. While focused on splicing rather than supports, it overlaps with ICP on the broader concrete reinforcement accessories category and shares similar contractor customer relationships.
• Western Forms, Inc. Western Forms manufactures concrete forming systems and related accessories. While focused on forming rather than rebar supports, it serves a similar contractor and dealer customer base in the concrete construction category with adjacent complementary products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/inland-concrete-products

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Inland Concrete Products