Riverside Epoxy Flooring Group is the Inland Valley's go-to team for outbuilding floor coatings, specializing in tack room floors, RV and trailer barn floors, and detached workshop floors. We offer heavy-build epoxy systems and textured wash rack coatings.
Get a free floor estimate
Our team provides degreasing and stem wall coating, delivering hose-clean barns for homes and tough equipment floors for both residential and commercial projects. Backed by 12 years in business and our 2-year workmanship warranty, we've completed over 1,187 projects, from a single-stall tack room to a drive-through RV barn with a parts bench.
From grinding out hydraulic drips to sealing the coating up the stem walls, our team handles every detail. Serving Riverside and neighboring Woodcrest, Norco and El Sobrante, we coat the floors behind the house that work harder than any garage.
Call today for a free estimate, and we will walk every outbuilding on the lot and price each floor separately.
What you can hold us to
A detached shop or barn floor needs a thicker, grittier and more chemical-resistant coating than a house garage, because it carries tractors, trailers, hooves and fuel instead of two clean cars. On ranch lots in Woodcrest and Norco the same slab may hold a horse trailer one week and a hay delivery the next. That is why we build outbuilding floors at 40 to 120 mils on a high-build system, not the 15 to 35 mils a flake garage floor needs.
Linda, Cowan Heights, North Tustin
A detached woodshop with oil-stained, dusty concrete that never came clean
Dale, ranch lot off Van Buren Boulevard, Woodcrest
A tack room and RV shop floor that held dust, hay and hydraulic drips
Investment and duration figures are estimates. Your written quote sets the final price and schedule.
Dale's tack room and RV shop, about 560 sq ft on a ranch lot off Van Buren Boulevard in Woodcrest, held dust, hay and hydraulic drips. We recommended a heavy-build epoxy with grit, sealed up the stem walls so it hoses out, laid as heavy-build epoxy, aluminum oxide grit and a tan solid color. Dale's job was an estimated $3,400 to $5,600 and took an estimated 2 to 3 days. Now the tack room hoses clean and the RV jack stands no longer chip the floor.
Linda's detached woodshop, about 540 sq ft in Cowan Heights, North Tustin, had oil-stained, dusty concrete that never came clean. We degreased and ground the slab, then laid heavy-build epoxy, gray solid color and aluminum oxide grit so sawdust sweeps up and the floor stays safe. The woodshop was an estimated $3,600 to $5,400 over an estimated 2 to 3 days, and sawdust now sweeps off in one pass with the oil stains sealed under the coating.
Heavy equipment and fuel call for a hard, chemical-resistant floor, and our outbuilding systems reach 75 to 85 Shore D with 8,000 to 12,000 PSI compressive strength. That is well above the 3,000 to 4,000 PSI of the slab underneath, so a tractor bucket set down or a dropped hitch does not crater the surface. Diesel, gasoline, brake fluid and hydraulic oil wipe off a sealed floor instead of soaking in, which matters on El Sobrante and Norco lots where trucks idle and drip in the same bay for years.
Wash racks, aisles and tack rooms need grip and a floor that sheds water, so we add grit to the final coat and seal the coating up the stem walls. A wet aisle in a Woodcrest barn or a hosed-out tack room in El Sobrante is the most slippery floor on the property, and a 0.60 to 0.85 DCOF finish keeps boots planted. Stall floors under deep bedding are usually left to rubber mats, which is how most horse owners in Yorba Linda and the Country Estates of Diamond Bar keep them.
The biggest risk on an outbuilding floor is the slab itself, because many barns and shops were poured on bare dirt with no vapor retarder. Trapped slab moisture causes blistering and adhesive failure under coatings, so we test every slab with an ASTM F1869 calcium chloride kit or ASTM F2170 relative humidity probes before choosing a system. Cracked, uneven and oil-soaked outbuilding slabs on older Claremont and San Antonio Heights properties are routed, filled and ground flat inside the same floor job.
A coat rolled straight onto a dusty barn slab, the way many owners in Norco and Woodcrest first try it, usually peels within a season.
Diamond grind, crack fill, 100% solids basecoat, clear topcoat
Full broadcast vinyl flake, UV-stable clear coat, park in about a day
Grind, stem walls optional, double broadcast flake, polyaspartic topcoat
Moisture-mitigating primer, then flake, color or polished finish
Hand-worked metallic pigment over a flat primed slab, high-gloss clear
Colored quartz double broadcast, textured slip-resistant topcoat
UV-stable polyaspartic with textured flake or quartz
Heavy-build epoxy for jacks, mats, tack and tools
Phased by section, high-build epoxy or quartz, cove and striping as needed
Failed DIY paint or peeling epoxy ground off before the new system
Investment and duration figures are estimates. Your written quote sets the final price and schedule.
A workshop, barn or home gym floor in Riverside is typically estimated at $2,200 to $5,800 for 400 to 576 sq ft, and slab condition, moisture readings and the system move the price most.
| Job | Est. investment | Est. duration |
|---|---|---|
| Workshop, barn or home gym floor (400 to 576 sq ft) | Est. $2,200 to $5,800 per floor | Est. 2 to 3 days |
| Large RV barn or equipment shop section (1,000 to 2,000 sq ft) | Est. $5,500 to $14,000 per section | Est. 3 to 5 days |
| Outbuilding slab with moisture barrier primer (600 to 1,000 sq ft) | Est. $3,800 to $8,000 per floor | Est. 2 to 3 days |
| Wash rack or tack room quartz broadcast (250 to 450 sq ft) | Est. $2,000 to $5,400 per floor | Est. 2 to 3 days |
| Old coating removal by diamond grinding (400 to 600 sq ft) | Est. $800 to $3,000 per floor | Est. 4 to 8 hours |
A horse property near Lake Hills or Victoria Grove often carries more than one slab, so we price each outbuilding separately. Under California law the deposit we take is never more than $1,000 or 10% of the contract, whichever is less.
These outbuilding prices are estimates and are subject to change. Your written quote after the slab test sets the final price and the schedule, depending on the square footage, the moisture readings and the system you choose.
Heavy-build epoxy with grit is our standard for barns and shops, a quartz broadcast suits wash racks, and polyaspartic flake suits a shop that doubles as a garage.
| System | Best for | Takes | Return to use |
|---|---|---|---|
| Heavy-build epoxy with aluminum oxide grit | Tack rooms, RV shops, woodshops | Jack stands, fuel, hosing | Park-on typically 72 to 96 hours |
| Epoxy-quartz double broadcast | Wash racks and wet aisles | Constant water, shod hooves | Walk-on typically 18 to 24 hours |
| Polyaspartic flake system | Shop and garage combined | Hot tires, sun at the door | Park-on typically 24 to 36 hours |
For wet zones, see our quartz broadcast floor systems; for a converted barn used as living space, our interior concrete floor coatings carry the moisture barrier.
The crew that tests your slab is the crew that coats it, and our surface prep technician routes every crack before a drop of resin goes down. Across 12 years and 1,187 projects, the outbuilding floors that held were the ones ground and tested first.
We coat shop and barn floors across a 45-mile radius of Riverside, most often on Woodcrest ranch lots, Norco horse properties and El Sobrante acreage. Yorba Linda, Villa Park and Diamond Bar outbuildings are on the route too.
Ranch owners often book a garage floor epoxy coating for the house garage and driveway coating and resurfacing for the apron on the same visit.
A workshop or barn floor is typically estimated at $2,200 to $5,800 for 400 to 576 sq ft, and your written quote sets the final price.
Yes, aisles, tack rooms and wash racks get grit for a 0.60 to 0.85 DCOF so wet boots and hooves grip.
Yes, our high-build systems reach 8,000 to 12,000 PSI compressive strength, well above the slab underneath.
Yes, after a moisture test, a high reading gets a moisture-mitigating epoxy primer before the coat.
Most outbuilding floors take an estimated 2 to 3 days, and 100% solids epoxy typically needs 72 to 96 hours before heavy parking.
Yes, we price each outbuilding separately and can schedule them back to back.
Call us or request a free estimate, and we will walk every shop and barn on the lot, test the slabs and write one scope per floor.
Start to finish
We walk the slab with you, map cracks, joints and old coatings, and take moisture readings before a system is named.
The system, every coat and its thickness, the colors and the cure and return-to-service times arrive in writing.
The slab is diamond ground with dust control, cracks and joints are filled, and each coat goes down inside its recoat window.
We walk the cured floor with you, go over the care notes and tell you when cars or equipment can come back.
Where we work
Call us or send the form, and we will book a free moisture test and a written estimate.
Calls only, we do not receive text messages.
