Pegasus Medical Cabinet Capacity and Configuration Guide
A lab manager opens a cabinet request and finds that the proposed design has plenty of shelves, but no clear place for fast-moving supplies, tall cartons, or future inventory. The problem isn't shelf count. It's whether staff can reach the right item quickly, safely, and without blocking an aisle.
This Pegasus Medical Cabinet capacity and configuration guide is for lab managers, facility teams, procurement groups, architects, contractors, and buyers planning healthcare or laboratory storage. It connects cabinet capacity with usable retrieval geometry, ISO module sizing, height zoning, room clearances, shelf loads, security, and workflow.
Practical rule: Design the interior around the inventory and staff movement. The cabinet body comes second.
Quick planning summary
- Capacity is usable space, not the number of shelves.
- Dense storage can reduce a standard flat shelving footprint from 1 square meter to 0.65 square meters, with a stated 33% to 50% increase in storage space per square meter, depending on configuration. Pegasus cabinetry guidance
- Frequently used items belong in ball-bearing glide drawers at 60 cm to 110 cm, or 24 in to 43 in, above the floor. Pegasus cabinet range guidance
- U-type layouts favor wall capacity. E-type layouts favor visibility and narrow-aisle access.
- Before ordering, gather facility dimensions, inventory and load needs, budget range, and compliance requirements.
- A practical planning resource should also account for related equipment and room systems. Teams evaluating pharmaceutical environments may find Forge Reliability pharma equipment useful when coordinating storage with broader process needs.
- Start with Labs USA lab storage solutions when the project includes shelving, cabinets, carts, or other laboratory storage components.
The earlier the layout is checked, the fewer surprises appear during procurement and installation. A verified drawing can protect aisle access, maintenance space, delivery timing, and the budget before those issues reach the job site.
What to Gather Before You Configure Your Cabinet
A cabinet designer cannot produce a reliable layout from a room name alone. Before choosing a Pegasus configuration, assemble a data packet covering the room, inventory, workflow, budget, and applicable requirements. The goal is to measure usable retrieval geometry, not count shelves.
1. Facility dimensions
Measure wall length, ceiling or clearance height, door swings, aisle widths, corners, columns, utilities, and fixed equipment. Include service access around nearby equipment. A cabinet that fits the wall can still block a door, cart route, electrical panel, or maintenance path.
Pegasus systems use 40 cm or 60 cm cabinet depths, with side panels for 400 mm or 600 mm cabinet formats. Custom heights can reach 2100 mm, so check ceiling clearance and overhead service space before finalizing the layout. These dimensions also affect whether staff can see and retrieve stock comfortably across different height zones. Pegasus modular cabinet information
2. Inventory and load requirements
List every item the cabinet will hold. Record container dimensions, the tallest carton, item count, access frequency, and approximate weight by shelf or module.
The tallest carton determines vertical clearance in its shelf zone. The number of distinct items determines whether dividers, drawers, trays, baskets, or hooks will provide better retrieval than open shelving. Published technical guidance describes cabinet shelves holding about 40 kg without deformation, while the bottom shelf in double-faced units supports about 80 kg. Other specifications list 20 kg for 362 mm width and 25 kg for 750 mm width. Confirm the rating for the selected product and actual configuration before ordering. Technical shelving specifications
3. Workflow and budget
Map who opens the cabinet, how often, and from which direction. Fast-pick supplies need a different interior arrangement from reserve stock, protected instruments, catheter supplies, or scope accessories. Note whether U-type capacity or E-type visibility better supports the actual picking route, because the choice affects both access time and total cabinet cost.
Keep a realistic budget range available. Compare purchase price with installation effort, future add-ons, staff retrieval time, rework, and the cost of delaying procurement.
4. Compliance and security requirements
Collect fire code, OSHA, EHS, institutional, and industry-specific requirements. Identify needs for locks, department-level keying, restricted access, chemical segregation, or special placement.
For flammable liquids, match the intended cabinet use to the inventory and local requirements. Stanford laboratory design guidance states that the combined quantity of flammable liquids in a storage cabinet should not exceed 120 gallons. Stanford laboratory design guidance
Use the healthcare storage density calculator to organize capacity inputs before requesting a layout. A complete data packet reduces changes after ordering and makes the trade-offs between density, visibility, reach, and cost easier to review.
How Pegasus Capacity Really Works From Density to Ergonomics
Pegasus capacity depends on usable retrieval geometry, not shelf count alone. Depth, spacing, module size, and access zones determine whether staff can identify and reach stock without moving items in front first.
Density needs access space
Pegasus guidance describes a standard flat shelving footprint as 1 square meter. Dense storage can reduce that footprint to 0.65 square meters, representing a 33% to 50% increase in storage space per square meter, depending on the configuration. The same guidance notes that gaps, or dead-air spaces, are needed between shelves so staff can reach items at the back. Pegasus cabinetry design guidance
The planning target is controlled spacing, not maximum fill. Removing every gap may raise theoretical density while slowing picking, hiding labels, and encouraging staff to return supplies to the wrong location. Measure the picking route as well as the cabinet footprint.
ISO modules make capacity predictable
Pegasus modular storage uses standardized components. Cabinet formats can use 40 cm and 60 cm depths, with 400 mm and 600 mm side-panel formats. Units may be arranged in E orientation at 600 mm wide or U orientation at 400 mm wide, with extra bays added to widen the system. This modular approach makes the interior easier to adjust than a fully custom cabinet.
The referenced basket system uses 60 x 40 cm and 30 x 40 cm modules. Basket heights include 5 cm, 10 cm, and 20 cm, with a maximum load of 40 kg per module. These standards allow baskets, trays, shelves, catheter boxes, and hooks to share one frame. They also make capacity calculations more repeatable when the inventory changes.
Height zoning controls retrieval effort
Frequently accessed items should sit in ball-bearing glide drawers at 60 cm to 110 cm, or 24 in to 43 in, above the floor. Less frequently used supplies can move to higher trays and baskets. Pegasus height zoning guidance
Top-level products take longer to access and may require a step stool. Reserve stock belongs higher in the cabinet, while daily-use items should remain in the ergonomic zone. This arrangement can improve throughput even when every level does not have the same storage treatment.
| Configuration choice | When to use it | Capacity and access impact |
|---|---|---|
| Dense basket storage | Many small, similar items | Controls unused air space, but still needs rear access clearance |
| Ball-bearing glide drawers | Frequent picking | Places high-use items in an ergonomic retrieval zone |
| Higher trays and baskets | Low-frequency or reserve stock | Uses vertical space, but should not hold daily-use items |
| Standard ISO modules | Mixed cabinet interiors | Supports repeatable basket, tray, shelf, and accessory planning |
| Solid shelving | Stable cartons or heavier stored items | Offers a firm surface, but requires careful shelf pitch and load review |
The usable result depends on how quickly staff can see, reach, and replace each item. For a broader comparison of open and firm shelf surfaces, review wire shelving versus solid shelving for labs. The lower purchase price of a dense layout may be offset by slower retrieval, installation changes, future add-ons, or rework if module sizing and height zoning are not settled before ordering.
Choosing the Right Configuration for Your Space and Workflow
A cabinet can hold a large inventory and still slow staff down if the layout hides items or forces repeated reaching. Choose between U-type and E-type arrangements by measuring wall capacity, visibility, aisle behavior, and picking speed against the work performed in the room.
U-type and E-type trade-offs
| Decision factor | U-type | E-type |
|---|---|---|
| Main strength | More storage on a given wall | Better product visibility |
| Suitable setting | Higher-capacity storage areas | Narrow aisles and frequent picking |
| Main risk | More difficult visual access if densely loaded | Lower raw capacity in some room layouts |
| Best question | Can staff reach and identify stored items efficiently? | Does visibility save enough retrieval effort to justify the space trade-off? |
A U-type arrangement suits a supply room that must consolidate a broad reserve inventory. Its added wall capacity can reduce the need for separate storage, but dense loading may make rear items harder to see and retrieve. An E-type arrangement gives staff clearer product views and can work well in a narrow aisle or a room with frequent picking. The trade-off is lower raw capacity in some footprints.
Capacity should be judged by usable retrieval geometry, not shelf count alone. A dense cabinet may store more units on paper, while a more visible arrangement can support faster picking and easier location control. That difference affects labor, replenishment, and the cost of later reconfiguration.
Match the interior to the work
Pegasus guidance recommends defining the inventory and accessories before selecting the cabinet body. Use:
- Drawers: Small items and frequent access.
- Retractable baskets: Contents that staff need to pull forward.
- Trays: Grouped supplies sharing a standard container.
- Dividers: Similar products that need fixed location control.
- Hooks: Hanging items suited to vertical storage.
- Catheter boxes: Long, narrow clinical supplies requiring separation.
Cabinet body dimensions for catheter, tray, and scope configurations are roughly 24 to 42 inches wide, 18 to 24 inches deep, and 48 to 92 inches high. Hanging scope capacity can range from about 5 to 18 positions, depending on configuration. Review Medical storage cabinet guidance when checking these configuration options.
Standardize tray formats across carts, wall units, and cabinets where practical. Shared containers reduce transfers and make replenishment more consistent across a department.
Set the locking plan before release. Decide whether access requires one key per department, one key per cabinet, or a master key. Changing keying after delivery can create avoidable cost and disruption.
Use the Pegasus Medical Storage Designer to test the proposed arrangement against room geometry, visibility, and workflow before ordering.
How to Plan and Size Your Pegasus Medical Cabinet Step by Step
A cabinet can fit the room and still slow retrieval. Use this five-step process for a new installation, replacement, or renovation, treating capacity as usable retrieval geometry rather than shelf count. The review can include the architect, contractor, procurement team, facilities staff, and daily users.
1. Define the cabinet shape
Begin with the measured footprint and staff approach. Choose a U-type or E-type arrangement by comparing wall length, aisle width, visibility, and picking frequency. U-type layouts can provide a compact run, while E-type layouts may improve visibility and access across more faces. The trade-off is how much storage density the room can support without making frequently picked items difficult to see or reach.
Confirm the cabinet location before selecting accessories. Mark the approach side, door swings, cart routes, adjacent equipment, and service access. A dense arrangement that blocks a cart turn or hides a high-use module reduces throughput even if it adds storage positions.
2. Select dimensions
Set width, depth, and height against field measurements. Check the tallest carton, ceiling services, overhead obstructions, door heads, and maintenance access. Pegasus configurations can use 40 cm and 60 cm depths, and custom heights can reach 2100 mm. Those options support different room constraints, but the drawing must reflect the actual site rather than nominal product dimensions.
ISO module sizing also matters. Standard module dimensions make trays and accessories easier to exchange across a department, while a highly customized mix can fit one room better but increase replacement and replenishment complexity. Review cabinet planning options for laboratory storage alongside the measured layout.
3. Configure shelves and accessories
Build the interior from the inventory profile. Use the tallest carton and the number of distinct items per shelf to set shelf pitch. Then assign drawers, retractable baskets, trays, dividers, hooks, or dedicated boxes according to how each item is handled.
Place daily-use products in the ergonomic drawer or mid-height zone. Put lower-use supplies higher or lower only when staff can retrieve them safely and without disrupting the work area. Height zoning should reflect retrieval frequency, package weight, and staff reach. Filling every available level can increase density while reducing real capacity, because inaccessible stock does not support the workflow.
4. Verify loads, clearances, and access
Check floor capacity, shelf or module ratings, cabinet clearance, door swing, aisle access, and maintenance space. Floor and overhead conditions often cause rework when the cabinet is approved without checking its surroundings.
For biological safety cabinets, placement affects airflow and service access. Laboratory design guidance recommends locating them away from doors, operable windows, high traffic, and ventilation diffusers, with six feet of separation from airflow disruptions. When two BSCs face each other, six feet of clearance is also recommended. See the University of Washington laboratory safety design guide.
Another installation guideline recommends 12 inches on each side, 40 inches in front, and 12 to 14 inches above a BSC for air velocity checks and filter changes. Treat reduced clearances as a limited option requiring confirmation by the responsible safety team. The UNC BSC installation guidance provides the installation checks.
5. Confirm standardization, locking, and the drawing
Align tray formats across carts, wall units, and cabinets where practical. Confirm which items need enclosure, then set door-bearing locations and the locking approach before release. Review the complete drawing with facilities, EHS, users, and the installer.
The most common planning errors are sizing only for current inventory and skipping floor-load or clearance checks. Leave room for growth and maintenance where the facility allows it. Labs USA can support layout consultation, CAD drawings, specification review, itemized quoting, lead-time confirmation, and delivery or installation coordination after the configuration is approved.
Final Checks Common Pitfalls and Next Steps With Labs USA
A good configuration should pass a final review by the people who will use, maintain, approve, and install it. Look beyond the cabinet elevation and test the operating experience.
Final review points
- Access: Confirm that frequently used items aren't trapped on upper levels or behind deep, crowded storage.
- Growth: Check that the design can handle future inventory without blocking service space or aisles.
- Loads: Match shelf and module loads to the actual stored materials.
- Clearance: Verify floor conditions, ceiling height, door swing, equipment spacing, and maintenance access.
- Security: Confirm the keying plan before production.
- Standardization: Make sure trays and baskets work across the department's carts, wall units, and cabinets.
- Compliance: Ask EHS, the fire authority, and qualified installers to review requirements that apply to the room.
BSC placement deserves separate attention because airflow disruption can affect containment. Cabinet storage also shouldn't be treated as a substitute for chemical-specific safety storage. Review SDS requirements, local code, and facility policies before assigning hazardous materials to any cabinet.
Once the layout is approved, the procurement package should include the itemized quote, dimensions, accessories, locking details, drawing package, lead time confirmation, delivery plan, and installation responsibilities. Early review can support smoother scheduling and reduce the risk of a cabinet arriving before the room, utilities, or access path is ready.
Seven useful decision scenarios
- Compact pharmacy: Favor visibility and fast picking when staff repeatedly select small items.
- Central supply room: Favor dense storage when reserve inventory needs consolidation.
- Cleanroom support area: Standardize baskets and containers to reduce handling variation.
- Scope storage: Confirm hanging positions, clearance, and access before choosing the body.
- Catheter storage: Use dedicated boxes or dividers for long, narrow supplies.
- Renovation project: Verify wall, floor, ceiling, and door conditions before releasing drawings.
- Restricted inventory: Set cabinet keying and access responsibility during design.
Labs USA offers competitive pricing, fast shipping and delivery options, quality laboratory furniture and components, free quotes, and free layouts and designs with no obligation. A specialist can help compare products, review specifications, and plan an installation that limits downtime.
Frequently Asked Questions
What information should I gather first?
Record room dimensions, ceiling height, aisle width, door and lift access, inventory sizes and weights, retrieval frequency, locking requirements, budget, compliance needs, and expected growth. These details determine usable retrieval geometry, not just the cabinet's shelf count.
Is cabinet capacity the same as shelf count?
No. Capacity depends on shelf pitch, ISO module sizing, cabinet height, rear access, basket or drawer dimensions, and the time required to identify and retrieve items. A denser layout can reduce footprint while slowing picking if frequently used supplies sit too high or visibility is poor.
Should I choose a U-type or E-type configuration?
Choose U-type when wall capacity and consolidated reserve storage have priority. Choose E-type when staff need clearer visibility and frequent access through narrower aisles. Compare the complete room layout, access routes, retrieval time, and future expansion rather than the cabinet footprint alone.
How high should frequently used supplies be placed?
Keep routine-pick items within the primary working zone. Pegasus guidance places frequently used items in ball-bearing glide drawers at 60 cm to 110 cm, or 24 in to 43 in, above the floor. Higher trays and baskets suit less frequently used stock. Pegasus ergonomic storage guidance
What load limit should I use for each module?
The referenced Pegasus modular basket system lists a maximum load of 40 kg per module. Treat that as a product reference, not a substitute for checking the selected cabinet, module, shelf, and fixing specifications against the actual inventory. Pegasus modular basket reference
When should locking and keying be decided?
Set access control during design, before the order is released. Decide whether departments share keys, each cabinet has its own key, or a master key is required. Late changes can affect doors, hardware, installation, and responsibility for restricted stock.
Do biological safety cabinets affect storage layout?
Yes. BSCs require separation from doors, windows, traffic, and ventilation diffusers, along with service clearance around the unit. Review the room before placing storage around it.
What happens after the layout is selected?
Request an itemized quote, drawing package, lead-time confirmation, and delivery and installation plan. Confirm dimensions, accessories, modules, locks, and responsibilities so bids can be compared accurately.
Use the Pegasus Medical Storage Designer to compare configurations before ordering, then request a quote or layout from Labs USA by calling 801-855-8560. Early planning gives the team time to confirm specifications, access, delivery timing, and future growth.