Custom Outdoor Storage Manufacturer
2,000 Units/Month. One Point of Contact.
Locked-In Capacity. Season After Season.
Annual production reservations that hold your allocation before peak demand hits. No ghost factories. No over-promising. No missed shelf dates.
Six Outdoor Storage Categories.
One Manufacturing Partner.
Every product category below is backed by our own metal-forming, injection-molding, and powder-coating lines — or a quarterly-audited Tier-1 partner operating under our QC umbrella. No middlemen. No black-box sourcing.
Metal Storage Sheds
Electro-galvanized steel panel construction with reinforced door tracks and integrated floor frames. Pitched roof design clears snow load. Pre-drilled components for rapid assembly.
- Z275 galvanized steel panels
- 6×8 to 12×10 ft sizes
- Padlock-compatible sliding doors
- Ventilation louvers standard
Resin Storage Boxes
UV-stabilized polypropylene resin construction with hydraulic lid stays. Doubles as bench seating with 350 lb weight capacity. Tool-free snap-together assembly.
- 120–230 gallon capacities
- Hydraulic soft-close lid stays
- UV-8 stabilized resin
- 350 lb seated weight rating
Waterproof Outdoor Cabinets
Powder-coated galvanized steel cabinets with full-perimeter door seals. Adjustable interior shelving. Pre-drilled wall-mount and floor-anchor points. IPX4 water-ingress protection.
- IPX4 weather-resistant rating
- Adjustable shelving system
- Wall-mount + floor anchors
- TGIC-free powder coating
Plastic Storage Units
Injection-molded HDPE construction with steel-reinforced lids and corner posts. Nestable design reduces freight cube by 40%. Ventilated panels prevent condensation and mildew.
- HDPE with steel reinforcement
- Nestable — 40% freight savings
- Ventilated anti-condensation
- 50–150 gallon capacities
Tool Storage Cabinets
Cold-rolled steel body with reinforced double-wall doors. Full-length piano hinges rated for 100,000+ cycles. Lockable 3-point latching system. Powder-coated interior and exterior for all-weather durability.
- Cold-rolled steel, double-wall doors
- 3-point lockable latch system
- Adjustable shelves, 500 lb per shelf
- Powder-coated inside and out
Storage Benches
Multi-functional bench seating with full-width interior storage compartment. Galvanized steel or FSC-certified acacia wood construction. Hydraulic lid stays. 80–150 gallon internal capacity. Rated for 500 lb seated weight.
- 80–150 gallon internal storage
- 500 lb seated weight capacity
- Galvanized steel or FSC acacia
- Hydraulic soft-close lid stays
Product Is Not the Problem.
Supply Chain Failure Is.
Rust appears within one season — and warranty claims follow.
Your supplier promised 500 units a month. You got 200 — then silence.
Every container that lands costs more than the quote promised.
Three Capabilities That
Change the Sourcing Equation.
The difference between a storage product that lasts 10 years and one that rusts in 6 months is not the design — it's the manufacturing infrastructure behind it. These three capabilities define every outdoor storage product we ship.
Owned Manufacturing Lines
Three dedicated production halls on our Guangdong campus — metal stamping and roll-forming for shed panels, injection molding for resin boxes and HDPE units, and electrostatic powder coating. Every station tooled for outdoor storage specifically. No shared lines with unrelated products. No borrowed capacity from a neighboring factory.
Anti-Corrosion System — Not Just a Coating
Corrosion protection starts at substrate selection and runs through chemical pre-treatment, electrostatic powder application, and cure profiling — executed as a continuous line process, not batch-to-batch. Every production lot is salt-spray sampled. Every failing panel is root-cause analyzed within 24 hours. Products that don't rust — not products that "should resist rust."
Customization at Scale
In-house tooling and die-making eliminates 8–12 week external mold vendor lead times. Custom panel dimensions, color matching to RAL/Pantone, private-label branding, and SKU-specific packaging. OEM tooling stored under NNN agreement in access-controlled tool room. 200–500 unit MOQ per SKU. Engineered variations, not catalog compromises.
Certified for Every Market.
Documentation Included.
ISO 9001:2015 quality management, BSCI social compliance, CE/GS/TUV product safety — every container ships with a complete compliance dossier. No chasing paperwork. No customs surprises.
What Separates a 10-Year Shed
From a 2-Season Shed.
It's not the catalog photo. It's what's inside every panel, joint, and coating layer. Six engineering decisions that determine whether your product builds brand loyalty — or warranty claims.
Z275 Steel Substrate
275 g/m² hot-dip zinc coating. The foundation. Every shed panel starts here — not lower-grade Z180 or pre-painted mystery steel. Mill certificate verified at receiving.
5-Stage Phosphate Pre-Treatment
Alkaline degrease → rinse → iron phosphate → rinse → non-chrome seal. This is what makes the powder coat bond permanently — skipped by most budget factories.
60–120 Micron TGIC-Free Powder Coat
Electrostatic application. Cured at 200°C for 10 minutes. Cross-hatch adhesion tested per ISO 2409. Salt-spray validated per ASTM B117 — 500+ hours, every production lot.
Reinforced Structural Joints
CNC roll-formed panel profiles. Robotic spot welds — 20–25 per panel, pull-test verified. No rivets that loosen after two thermal cycles. No self-tapping screws that strip.
ISTA 3A-Tested Flat-Pack
Dropped 17 times before it ships. Custom inner trays, edge protectors, cross-strapping per SKU. 40–60% cube reduction versus assembled units. Target damage rate: below 0.8%.
Your Shelf Space Is Reserved.
Before the Season Starts.
The outdoor storage retail season has a hard deadline — if your container isn't dockside by March, you lose the season. Our annual capacity reservation system locks your production allocation before peak demand begins. Here's how the cycle works.
Forecast Submission & Capacity Lock
Submit your annual volume forecast by SKU. We reserve dedicated production line time across metal stamping, injection molding, and powder-coating stations. Once locked, your allocation is held regardless of demand from other buyers. No auctioning. No overbooking.
Pre-Season Production Ramp-Up
Raw material procurement begins against your forecast — Z275 steel coil, HDPE resin, powder-coat pigments. Production starts on platform SKUs to build buffer inventory. Custom SKU tooling is finalized and pre-production samples shipped for sign-off. The line is warm before peak demand hits.
Peak Season Production & Shipment
Full-rate production across all lines. Weekly WIP reports with photos and barcode-level output tracking. Container loading per your delivery schedule — we backward-plan from your retail set date. QC at every gate. Container dossier ships with every load: inspection reports, load-cell data, salt-spray certificates, barcode verification.
Post-Season Review & Next-Year Planning
Joint review of warranty claims, sell-through data, and packaging feedback. Engineering change requests incorporated before next season's production. Forecast refined based on actuals. Capacity pre-reserved for the following year. Continuous improvement cycle — not a one-and-done transaction.
One All-In Landed Cost.
Zero Surprises.
Every outdoor storage quote from OGPS includes a line-by-line BOM breakdown — raw materials, tooling amortization, manufacturing, packaging, compliance testing, and freight. You know exactly what you're paying for, and more importantly, what you're not.
Raw Materials
Z275 steel coil at Shanghai Metals Market index + processing surcharge. HDPE resin at Sinopec listed price. TGIC-free polyester powder at contracted volume rate. Material cost is index-linked — you see the formula, not a made-up number. Mill certificates provided at incoming inspection.
Tooling Amortization
Mold and die costs disclosed upfront, not buried in unit price. Amortized over your forecast volume with a defined end date. When tooling is paid off, your unit cost drops — automatically. Other suppliers keep the margin. We transfer the savings to you. Stamping dies, injection molds, and color-matched powder-coat tooling all documented separately.
Manufacturing & Assembly
Labor, energy, and factory overhead calculated per production station — roll-forming, robotic welding, injection molding, powder coating, assembly, and final QC. Line-rate efficiency factored into the quote. No inflated cycle times. No phantom processing steps.
Packaging Engineering
Custom inner trays, edge protectors, and SKU-specific strapping — designed per product, not pulled from a generic catalog. Line-item packaging cost disclosed upfront. Better packaging means lower damage-related chargebacks and higher container density. That savings shows in your margin, not our markup.
Compliance & Testing
Every regulatory and performance test required for your target market — included in the quote. No "optional" testing add-ons. No surprise compliance charges when the container is ready. Test reports ship with the container. Your compliance team signs off before the vessel sails.
Freight & Logistics
FOB or CIF — your choice. Container optimization analysis included: we model mixed-SKU loading to maximize cube utilization. One bill of lading. One customs dossier. No consolidation fees. No hidden documentation charges. Your landed cost per unit is calculated before the first container is booked — not guessed at after it sails.
Come Walk the Floor.
Your Containers Are Already Here.
When your procurement team visits our Guangdong campus, you'll see your product category running on the line — not a curated showroom. Third-party audits. Live production data. Complete compliance documentation. Here's what to expect.
Walk Your Actual Production Lines
Not a showroom. Not a trade-fair booth. Walk the metal stamping bay where your shed panels are roll-formed. Stand at the injection molding station where your resin boxes come out of the tool. Watch the powder-coating line run your color. The factory you visit is the factory that ships your order — every time.
Third-Party Audit Ready — Any Standard
BSCI, SMETA, WCA, ICS — any social compliance standard your retail partner requires. Past audits passed — reports available for review during evaluation. On-site dormitories inspected. Payroll records transparent. We don't prep for audits — we operate to the standard every day of the year.
Real-Time Production Transparency
Weekly production photos and WIP dashboards during your order run. Pre-shipment inspection with live video walkthrough available. Batch-level test data uploaded to a shared folder before the container leaves. You see your product being made — not a curated factory brochure sent after the fact.
Third-Party Inspection, Coordinated End-to-End
SGS, Bureau Veritas, TÜV, or your preferred inspection partner — we schedule, you approve. Audit reports, payroll records, and factory licenses shared during evaluation, before you book a flight. On-site during production: your inspector has unrestricted floor access, camera in hand, no advance notice required.
Your Products,
Out in the Wild.
Outdoor storage products manufactured by OGPS, photographed at retail locations and end-consumer homes across North America and Europe.
Trusted by Storage Brands.
Proven Across Markets.
Real feedback from procurement and category leaders who run outdoor storage programs through OGPS every season.
“Before OGPS, we were sourcing galvanized sheds from a trading company in Ningbo — three different factories behind one invoice, and we never knew which one was running our order. Quality swung between containers. Corrosion claims hit 4.7% in coastal markets. Packaging was generic: one corrugated carton per SKU, zero custom inner fitments, damage rates running at 7–8%. Every season, our retail buyer had the same conversation with me: "James, the sheds."”
“We moved 12 containers through OGPS last year — each loaded with 3 mixed SKUs optimized for our store planogram. That's over 2,800 units in one season. The flat-pack engineering reduced our container cube by 34% and cut freight cost per unit by 22%.”
“Zero rust claims after a full Pacific Northwest winter. Zero. Our retail partner's unboxing experience score for the storage category hit 9.2 — the highest they've ever recorded. Our compliance team used to spend two weeks chasing paperwork. Now the dossier — mill certs, salt-spray reports, barcode verification, assembly test results — arrives before the vessel docks.”
“Two years ago, we were running resin storage boxes through a factory in Zhejiang. 12% of units arrived with stress cracks — hairline fractures radiating from the lid hinge mounting points. The root cause: mold temperature off by 8°C, and a single-layer inner packaging tray that collapsed under stack pressure during ocean transit. We lost an entire Q2 promotional window dealing with returns and chargebacks.”
“We switched to OGPS on a pilot order of 500 units. Their engineering team caught the mold temperature issue in the DFM review before cutting a new tool. They redesigned the inner tray — dual-layer corrugated with die-cut corner posts and cross-strap channels — after instrumenting a test shipment with impact loggers. That pilot landed at 0.3% damage.”
“We've since run 8,000+ units across three SKUs over two years. Total warranty claims: one — a hydraulic lid stay replaced within 72 hours from their spare-parts inventory in Rotterdam. Per-unit landed cost is 9% lower than the Zhejiang supplier. Damage rate hasn't crossed 0.5% on any container. Our category margin improved by 320 basis points.”
Questions You're Probably
Already Asking.
MOQs start at 200 units per SKU for metal sheds and resin storage boxes. For custom-designed products with dedicated tooling, MOQs are typically 300–500 units per SKU to amortize mold costs. We structure phased ramp-ups for new brands: a pilot batch for market validation, then scaled production. Our engagements are designed for brands with annual procurement volumes of $400K+.
Yes — customization is core to what we do. Our in-house tooling and die-making shop enables custom panel dimensions, door configurations, vent placement, and color matching to your brand palette (RAL or Pantone). Private-label branding on packaging and product. OEM tooling is protected under NNN agreement and stored in our access-controlled tool room. Typical custom development timeline: 60–90 days from design freeze to pre-production sample.
Existing platform SKUs: 30–45 days from order confirmation to container loading. New OEM/ODM designs: 60–90 days including tooling fabrication, sampling, pre-production validation, and packaging engineering. Ocean transit: 25–35 days to North American or European destination ports. We backward-schedule from your retail season to ensure on-time delivery — and reserve production capacity once the annual forecast is confirmed.
Our Z275 galvanized steel substrate with five-stage pre-treatment and 60–120 micron powder coating is engineered for 5+ years of outdoor exposure with no structural rust perforation. We provide a 2-year warranty against rust perforation on metal sheds — backed by ASTM B117 salt-spray test reports (500+ hours) included in your compliance dossier. For coastal or extreme environments, we can engineer upgrades to Z350 coating or stainless steel hardware.
Yes — this is one of OGPS Group's core competitive advantages. We consolidate outdoor storage products (sheds, boxes, cabinets) with grills, furniture, pergolas, and other outdoor products in a single 40HQ container. Dense items (grills) serve as ballast; flat-pack storage units fill the remaining cube. One purchase order, one shipment, one point of contact. Typical freight savings of 15–25% versus fragmented LCL shipping across multiple suppliers.
Four-gate QC system: (G1) Incoming material inspection — mill certificates verified, zinc coating measured, HDPE melt-flow tested. (G2) In-process checks — dimensional verification at roll-forming, weld pull-test sampling, injection molding parameter monitoring. (G3) Pre-shipment AQL sampling per ISO 2859-1, Level II, AQL 2.5 — including assembly test: every sampled unit must assemble within the instruction manual time. (G4) Packaging and loading — ISTA-tested packaging integrity, barcode verification, container loading supervision. Every batch ships with full documentation.
Stop Managing Fragmented
Storage Suppliers.
Start Owning Your Storage Line.
Tell us your product roadmap, target price point, and volume forecast. We'll map your outdoor storage program, match materials to your market, and deliver a custom B2B sourcing proposal with transparent pricing — within 24 hours, no obligation.
Minimum annual procurement volume: $400K+. Enterprise engagements only.