+---
+title: Laboratory Casework and Fume Hoods
+category: Architectural / Specialties
+toc_depth: 3
+description: >
+ When to use: specification, procurement, and installation of laboratory casework systems (base, wall, and overhead cabinets, tables, benches, knee spaces, shelving) and laboratory chemical fume hoods (bypass, VAV, ductless/filtered) for institutional, research, clinical, educational, and industrial wet and dry labs, including new construction and renovation. Covers material selection (steel, phenolic, polypropylene, wood, stainless), work-surface substrates, utility fixture integration, sash and liner configuration, and SEFA/ASHRAE 110 conformance.
+ Not intended for: exhaust ductwork, fans, and VAV air-handling controls (see [[sync/laboratory-exhaust-and-fume-hoods]]); residential/commercial millwork (see [[sync/wood-and-laminate-casework]]); countertops specified independently of casework (see [[sync/solid-surface-countertops]]); medical gas outlets and piping (see [[sync/medical-gas-systems]]); biosafety cabinets and laminar-flow hoods (NSF/ANSI 49 equipment, not chemical fume hoods); and ISO Class 5 cleanroom furnishings.
+---
+
+# Scope {toc}
+
+## This standard covers laboratory-grade casework, work surfaces, and chemical fume hoods furnished as an integrated furniture and containment system for wet and dry laboratory occupancies. {note}
+
+## Casework covered includes base cabinets, wall and overhead cabinets, suspended and freestanding bench tables, knee-space units, reagent shelving, and the chemical-resistant work surfaces mounted on them. {note}
+
+## Fume hoods covered are chemical containment hoods — bypass constant-air-volume (CAV), variable-air-volume (VAV), and ductless/recirculating (filtered) — including the hood body, liner, baffle, sash, airfoil, and integral service fixtures. {note}
+
+## The exhaust system serving the hood — ductwork, fans, dampers, and the VAV airflow control loop — is excluded from this standard and is specified under [[sync/laboratory-exhaust-and-fume-hoods]]; this standard addresses only the hood as a piece of containment furniture and its exhaust-collar interface. {note}
+
+## Biosafety cabinets (Class I, II, and III), laminar-flow clean benches, and clean benches are governed by NSF/ANSI 49 and provide product and environmental protection that chemical fume hoods do not; they are a distinct equipment category and are not covered here. {note}
+
+## Selecting a chemical fume hood where a biosafety cabinet is required — or the reverse — creates a regulatory and personnel-safety liability; confirm the containment objective (personnel only versus personnel/product/environment) with the Owner's Environmental Health and Safety (EHS) authority before specifying. {note}
+
+## Where a value below could be answered with a concrete selection it is presented as a datasheet field; locations, service-fixture arrangements, and hood placement that can only be drawn are deferred to the drawings. {note}
+
+# Referenced Standards {toc}
+
+## Equipment, materials, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited.
+
+## Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
+
+## SEFA recommended practices are voluntary consensus documents; where the Owner's EHS policy or the adopted building code imposes a stricter requirement, that requirement governs. {note}
+
+| Standard | Title |
+|----------|-------|
+| ANSI/ASHRAE 110-2016 (R2025) | Methods of Testing Performance of Laboratory Fume Hoods |
+| SEFA 1-2026 | Laboratory Fume Hoods and Ventilated Enclosures |
+| SEFA 8M-2020 | Laboratory Grade Metal Casework |
+| SEFA 8PH-2020 | Laboratory Grade Phenolic Casework |
+| SEFA 8W-2020 | Laboratory Grade Wood Casework |
+| SEFA 8P-2020 | Laboratory Grade Polypropylene Casework |
+| SEFA 8PL-2020 | Laboratory Grade Plastic Laminate Casework |
+| SEFA 7 | Laboratory Fixture Fittings |
+| ANSI/ASSP Z9.5-2022 | Laboratory Ventilation |
+| NFPA 45-2019 | Standard on Fire Protection for Laboratories Using Chemicals |
+| NSF/ANSI 49-2023 | Biosafety Cabinetry: Design, Construction, Performance, and Field Certification |
+| NFPA 70-2023 (NEC) | National Electrical Code |
+| IBC 2021 | International Building Code (Section 1109 accessibility) |
+
+# Submittals {toc}
+
+## Action Submittals {toc}
+
+### The Contractor shall submit the following action submittals for review and approval before fabrication:
+
+- Shop drawings showing casework elevations, plans, sections, and dimensions, with every utility fixture, sink, cup sink, electrical receptacle, and service drop located and keyed to the MEP rough-in.
+- Product data for each casework material, work-surface substrate, fume hood type, sash, liner, and service fitting.
+- Color and finish samples for casework powder coat, work surfaces, and fume hood liner.
+- A chemical-exposure matrix mapping each lab area to the reagents in use and the work-surface and casework material selected for it.
+- Seismic anchorage calculations and connection details, stamped by a licensed engineer, for the project Seismic Design Category.
+- A manufacturer-certified SEFA 8 third-party chemical-resistance and structural test report for the proposed casework material.
+
+```datasheet
+label: Action submittals required
+type: checkbox
+options:
+ - Casework shop drawings (keyed to MEP rough-in)
+ - Product data (casework, work surfaces, hoods, fittings)
+ - Color and finish samples
+ - Chemical-exposure matrix
+ - Seismic anchorage calculations (stamped)
+ - SEFA 8 third-party test report
+default: [Casework shop drawings (keyed to MEP rough-in), Product data (casework, work surfaces, hoods, fittings), Color and finish samples, Chemical-exposure matrix, SEFA 8 third-party test report]
+```
+
+### The casework shop drawings shall be coordinated with and signed off by the mechanical, plumbing, and electrical trades before they are submitted.
+
+### The chemical-exposure matrix shall identify any reagent that is incompatible with the proposed work-surface or casework material so the conflict is resolved before fabrication. {note}
+
+## Informational Submittals {toc}
+
+### The Contractor shall submit the following informational submittals:
+
+- The manufacturer's ASHRAE 110 As-Manufactured (AM) test report for the proposed fume hood model at the specified face velocity.
+- For ductless/recirculating hoods, the filter manufacturer's chemical-compatibility statement for the reagents listed in the chemical-exposure matrix.
+- Manufacturer installation, operation, and maintenance instructions.
+
+```datasheet
+label: Informational submittals required
+type: checkbox
+options:
+ - ASHRAE 110 As-Manufactured (AM) test report
+ - Ductless filter chemical-compatibility statement
+ - Installation/operation/maintenance instructions
+default: [ASHRAE 110 As-Manufactured (AM) test report, Installation/operation/maintenance instructions]
+```
+
+### The As-Manufactured test report alone does not demonstrate field performance; the As-Installed and As-Used tests required under Testing are a separate field activity and submittal. {note}
+
+## Closeout Submittals {toc}
+
+### The Contractor shall submit the following closeout submittals:
+
+- The ASHRAE 110 As-Installed (AI) field test report for each fume hood, with EHS acceptance sign-off.
+- The fume hood commissioning record, including face-velocity traverse and smoke-visualization results.
+- Record (as-built) shop drawings reflecting installed conditions.
+- Manufacturer warranty documents.
+
+```datasheet
+label: Closeout submittals required
+type: checkbox
+options:
+ - ASHRAE 110 As-Installed (AI) field test report (EHS signed)
+ - Commissioning record (face-velocity traverse, smoke)
+ - Record shop drawings
+ - Warranty documents
+default: [ASHRAE 110 As-Installed (AI) field test report (EHS signed), Commissioning record (face-velocity traverse, smoke), Record shop drawings, Warranty documents]
+```
+
+# Quality Assurance {toc}
+
+## The casework manufacturer shall be regularly engaged in the production of laboratory-grade casework and shall hold current SEFA 8 third-party test reports for the supplied material class. {note}
+
+### Casework shall be certified to the SEFA 8 sub-standard matching its material class — SEFA 8M (metal), 8PH (phenolic), 8W (wood), 8P (polypropylene), or 8PL (plastic laminate).
+
+### An "or equal" substitution shall be accepted only when the substitute carries a current SEFA 8 third-party test report from an accredited laboratory for the same material class.
+
+### Unqualified casework frequently passes initial inspection and then fails chemical-resistance or structural performance in service year two or three; the certified test report is the contractual safeguard against that failure mode. {note}
+
+### The fume hood manufacturer shall demonstrate compliance with SEFA 1 and shall furnish ASHRAE 110 As-Manufactured test data for the supplied model at the specified design face velocity.
+
+## Installer Qualifications {toc}
+
+### The installer shall be trained and authorized by the casework and fume hood manufacturer.
+
+### Field testing and commissioning shall be performed by an independent agency qualified to conduct the ASHRAE 110 tracer-gas procedure.
+
+# Environmental and Service Conditions {toc}
+
+## Casework and work-surface material shall be selected from the chemical-exposure class of the lab it serves; a generic selection made without a chemical-exposure matrix is the leading cause of premature surface damage and warranty disputes. {note}
+
+### The material selection shall be coordinated with the cleaning and decontamination protocol of the occupancy, because aggressive cleaning agents and frequent wet-down change the governing exposure. {note}
+
+```datasheet
+label: Chemical exposure class (governs material selection)
+type: radio
+options:
+ - General chemistry (common reagents, dilute acids/bases)
+ - Strong acid / oxidizer (concentrated, perchloric, HF)
+ - Strong base / caustic
+ - Organic solvents (ketones, chlorinated)
+ - Radiological / wipe-down decontamination
+ - Dry lab (no wet chemistry)
+default: General chemistry (common reagents, dilute acids/bases)
+```
+
+### Epoxy resin work surfaces resist nearly all common laboratory reagents but are attacked by ketones and methylene chloride; polypropylene resists strong acids and bases but is incompatible with oxidizing acids; matching the substrate to the actual reagents is mandatory. {note}
+
+### Concentrated hydrofluoric acid attacks most work-surface materials and glass; areas where HF is handled shall use a material and finish documented by the manufacturer as HF-resistant. {note}
+
+## Seismic Conditions {toc}
+
+### Tall, wall-hung, and island casework in Seismic Design Category C through F shall be anchored per a design stamped by the Engineer of Record using the manufacturer's product-specific connection details.
+
+### Seismic anchorage is routinely overlooked until close-out inspection; resolve the anchorage design during shop-drawing review, not at final inspection. {note}
+
+# Casework Materials and Construction {toc}
+
+## The casework substrate shall be selected for the chemical-exposure class, the cleaning protocol, and the structural duty of the lab; each material trades chemical resistance, cleanability, and cost differently. {note}
+
+```datasheet
+label: Casework substrate
+type: radio
+options:
+ - Cold-rolled steel, epoxy powder coat
+ - Phenolic resin
+ - Polypropylene (all-plastic)
+ - Wood, chemical-resistant finish
+ - Stainless steel (304/316)
+default: Cold-rolled steel, epoxy powder coat
+```
+
+### Steel casework is the general-purpose default for most wet and dry labs; phenolic suits high-moisture wet labs; polypropylene suits strong-acid and strong-base environments; stainless suits pharmaceutical and cleanroom-adjacent areas; wood suits teaching and dry labs. {note}
+
+### Cold-rolled steel casework shall be finished with an epoxy powder coat applied to a minimum 3 mil dry film thickness.
+
+```datasheet
+label: Steel casework powder-coat dry film thickness
+type: range
+unit: mil
+min: 3
+max: 5
+step: 0.5
+default: 3
+```
+
+### Casework exposed to hydrofluoric or perchloric acid shall receive a two-part acid-resistant topcoat over the standard powder coat.
+
+### The standard casework color shall be a neutral light gray (Munsell N7 or equivalent) unless the drawings specify otherwise.
+
+```datasheet
+label: Casework finish color
+type: select
+options:
+ - Light gray (Munsell N7)
+ - White
+ - Pearl / off-white
+ - Manufacturer custom color
+default: Light gray (Munsell N7)
+```
+
+## Mounting System {toc}
+
+### The casework mounting system shall be selected for serviceability and reconfiguration needs and coordinated with the slab and wall construction. {note}
+
+```datasheet
+label: Casework mounting system
+type: radio
+options:
+ - Floor-mounted freestanding
+ - Suspended (hung on continuous wall rail)
+ - Modular island with service spine
+default: Floor-mounted freestanding
+```
+
+### Suspended casework leaves the floor clear for cleaning and allows base cabinets to be relocated without demolition; it requires a continuous structural wall rail and increases seismic anchorage demand. {note}
+
+## Cabinet Construction and Hardware {toc}
+
+### Base cabinet bodies shall be of double-wall construction in the selected substrate, with corrosion-resistant or chemical-resistant hardware throughout.
+
+### Drawer slides shall be full-extension and rated for the specified static load.
+
+```datasheet
+label: Drawer slide static load rating
+type: radio
+unit: lb
+options:
+ - 75
+ - 100
+default: 75
+```
+
+### Door hinges shall be the concealed European type unless an institutional five-knuckle hinge is specified for heavy-duty service.
+
+```datasheet
+label: Door hinge type
+type: radio
+options:
+ - Concealed European (self-closing)
+ - Institutional five-knuckle
+default: Concealed European (self-closing)
+```
+
+### Adjustable cabinet shelves shall support a uniformly distributed load of at least 50 lb/ft per SEFA 8M; overhead wall-cabinet shelves shall support at least 25 lb/ft.
+
+## Standard Dimensions {toc}
+
+### Base cabinets shall be 36 in. high (carcass) yielding a finished work-surface height of 34 in. to 35 in., and 24 in. deep; wall cabinets shall be 12 in. to 13 in. deep.
+
+```datasheet
+label: Base cabinet module width
+type: select
+unit: in.
+options:
+ - 18
+ - 24
+ - 30
+ - 36
+default: 24
+```
+
+# Work Surfaces {toc}
+
+## The work-surface substrate shall be selected from the chemical-exposure class and specified by material and thickness; the substrate is the most chemically abused surface in the lab and a mismatch fails fastest. {note}
+
+```datasheet
+label: Work surface material
+type: radio
+options:
+ - Epoxy resin
+ - Solid phenolic resin
+ - Stainless steel (304)
+ - Stainless steel (316)
+ - Chemical-resistant HPL / high-pressure laminate
+default: Epoxy resin
+```
+
+### Epoxy resin is the default wet-lab work surface for its broad reagent resistance, monolithic dished construction, and heat tolerance. {note}
+
+### Epoxy resin work surfaces shall be a minimum 1 in. thick for general use, increased to 1.25 in. in heavy-use areas.
+
+```datasheet
+label: Epoxy resin work surface thickness
+type: radio
+unit: in.
+options:
+ - "1"
+ - "1.25"
+default: "1"
+```
+
+### Solid phenolic work surfaces shall be 0.75 in. to 1 in. thick and shall not be used where prolonged ketone exposure is expected.
+
+### Stainless steel work surfaces shall be a minimum 16 gauge, with 316 specified where chloride or pharmaceutical cleaning chemistry is present.
+
+### Sinks and cup sinks integral to the work surface shall be of the same chemical-resistant material as the surface or a compatible material approved by the manufacturer.
+
+# Fume Hoods {toc}
+
+## The fume hood type shall be selected for the energy code, the containment duty, and the renovation constraints of the project; the choice drives both safety performance and lifetime HVAC energy. {note}
+
+```datasheet
+label: Fume hood type
+type: radio
+options:
+ - Bypass CAV (constant air volume)
+ - VAV (variable air volume)
+ - Ductless / recirculating (filtered)
+ - High-performance low-flow VAV
+default: VAV (variable air volume)
+```
+
+### VAV hoods are the default for new construction because state energy codes and LEED effectively require them; a constant-volume hood can consume three to five times the HVAC energy of a VAV hood. {note}
+
+### A CAV hood shall not be specified in new construction without a documented energy analysis justifying the exception.
+
+### Ductless/recirculating hoods filter and return air to the room; activated-carbon and HEPA media do not capture all solvents, so a ductless hood shall not be specified without the Owner's EHS sign-off on chemical compatibility with the filter media. {note}
+
+## Nominal Size and Configuration {toc}
+
+### The nominal hood width shall be specified as the clear interior working width; 6 ft is the most common selection.
+
+```datasheet
+label: Nominal fume hood width
+type: radio
+unit: ft
+options:
+ - "4"
+ - "6"
+ - "8"
+default: "6"
+```
+
+### A 6 ft nominal hood provides 71 in. to 72 in. of clear interior width; interior depth shall be 24 in. to 28 in., with 28 in. preferred where deep apparatus is used.
+
+```datasheet
+label: Fume hood interior depth
+type: radio
+unit: in.
+options:
+ - "24"
+ - "28"
+default: "28"
+```
+
+## Sash {toc}
+
+### The sash configuration shall be selected for the work task and for face-velocity uniformity; the sash type determines the openable area and how velocity distributes across the face. {note}
+
+```datasheet
+label: Sash configuration
+type: radio
+options:
+ - Vertical-rising
+ - Horizontal-sliding
+ - Combination (horizontal panels within a vertical sash)
+default: Vertical-rising
+```
+
+### The sash shall be glazed with laminated safety glass and fitted with a stop or alarm at the design working height.
+
+### The design working sash height for a VAV hood shall be 18 in. unless the drawings or EHS require a different working opening.
+
+```datasheet
+label: Design working sash height
+type: range
+unit: in.
+min: 12
+max: 24
+step: 1
+default: 18
+```
+
+## Liner, Baffle, and Airfoil {toc}
+
+### The hood liner shall be a chemical-resistant material matched to the chemical-exposure class — typically epoxy-coated steel, solid phenolic, polypropylene, or stainless steel.
+
+```datasheet
+label: Fume hood liner material
+type: radio
+options:
+ - Epoxy-coated steel
+ - Solid phenolic resin
+ - Polypropylene
+ - Stainless steel (316)
+default: Solid phenolic resin
+```
+
+### The rear baffle shall be adjustable to distribute exhaust across the upper and lower slots and shall be removable for cleaning.
+
+### The airfoil sill shall be designed to sweep the bench surface and shall not create a turbulent recirculation zone at the hood face. {note}
+
+# Service Fixtures {toc}
+
+## Utility service fixtures mounted on casework and fume hoods shall comply with SEFA 7 for color coding, valve handle abbreviation, and performance. {note}
+
+### Each service fixture shall be color-coded and labeled per SEFA 7 so the medium (gas, air, vacuum, water) is identifiable at a glance.
+
+### The services roughed in to each bench and hood shall be selected from the lab program and coordinated with the MEP design.
+
+```datasheet
+label: Bench / hood services provided
+type: checkbox
+options:
+ - Cold water
+ - DI / RO water
+ - Natural gas
+ - Compressed air
+ - Vacuum
+ - Nitrogen
+ - Drain / cup sink
+ - Electrical receptacle
+default: [Cold water, Natural gas, Vacuum, Electrical receptacle, Drain / cup sink]
+```
+
+### Cup sinks, gas cocks, receptacles, and DI/water drops must be located on the casework shop drawings and confirmed before slab pour or wall rough-in; a missing coordination point cascades into change orders. {note}
+
+### The exact location and routing of each service fixture and drop shall be as shown on the drawings [[drawing: lab service-fixture plan]].
+
+## Electrical {toc}
+
+### Electrical receptacles integrated into casework base units shall comply with NFPA 70 (NEC), including ground-fault protection where required by Code.
+
+### Receptacles within 6 ft of a sink shall be GFCI-protected.
+
+# Accessibility {toc}
+
+## Each laboratory suite shall provide at least one accessible workstation and one accessible fume hood location; standard hoods have a 36 in. sill and require a modified base or pedestal to meet reach range, so the accessible location must be coordinated early. {note}
+
+### The accessible work-surface height shall not exceed 34 in.
+
+### An accessible knee space shall provide a clearance of at least 27 in. high by 30 in. wide by 19 in. deep.
+
+### The accessible fume hood work surface shall be set at a maximum of 34 in. to bring controls and the work zone within ADA reach range, per IBC 2021 Section 1109 and the ADA accessibility requirements.
+
+```datasheet
+label: Accessible stations required (per lab suite)
+type: checkbox
+options:
+ - Accessible casework workstation (34 in. max surface)
+ - Accessible knee space (27 x 30 x 19 in. min)
+ - Accessible fume hood (34 in. max sill)
+default: [Accessible casework workstation (34 in. max surface), Accessible knee space (27 x 30 x 19 in. min)]
+```
+
+# Fire Protection and Chemical Storage {toc}
+
+## Chemical storage within laboratory furniture shall comply with NFPA 45; casework is not a substitute for a listed flammable-storage cabinet. {note}
+
+### Flammable liquid stored in a non-rated base cabinet shall not exceed the per-lab-unit limit established by NFPA 45.
+
+### Flammable-storage cabinets and acid/corrosive-storage cabinets shall be FM- or UL-listed specialty units, specified separately from standard casework.
+
+```datasheet
+label: Under-bench storage cabinet type
+type: select
+options:
+ - Standard casework (no rated storage)
+ - Flammable storage (FM/UL-listed)
+ - Acid / corrosive storage (lined, vented)
+ - Solvent + acid combination
+default: Standard casework (no rated storage)
+```
+
+### Vented storage cabinets connected to the hood or exhaust system shall be coordinated with the exhaust design under [[sync/laboratory-exhaust-and-fume-hoods]] so the added load is accounted for in the airflow balance. {note}
+
+# Performance {toc}
+
+## The fume hood design face velocity shall be set from a hazard assessment per ANSI/ASSP Z9.5-2022, not from a single prescriptive number; the standard has shifted from fixed face velocity to a performance-based approach. {note}
+
+### The design face velocity shall be specified with the sash position at which it is measured; "100 fpm" at full-open is a different requirement than "100 fpm" at the 18 in. working position, and the sash height must always be stated. {note}
+
+### The design face velocity at the working sash position shall be as scheduled, with a typical range of 80 fpm to 100 fpm for general chemistry.
+
+```datasheet
+label: Design face velocity (at working sash position)
+type: range
+unit: fpm
+min: 60
+max: 120
+step: 5
+default: 100
+```
+
+### No individual face-velocity measurement in the traverse shall deviate more than 20% above or below the average.
+
+### A VAV hood shall have an EHS-approved minimum exhaust setpoint, typically 300 CFM to 400 CFM, coordinated with room pressurization and makeup-air capacity.
+
+```datasheet
+label: VAV minimum exhaust setpoint
+type: range
+unit: CFM
+min: 250
+max: 500
+step: 25
+default: 350
+```
+
+### The VAV minimum-flow setpoint shall be coordinated between the hood supplier and the HVAC controls contractor; an unmatched minimum causes room pressure imbalance and containment spillage. {note}
+
+### A 6 ft CAV hood at 100 fpm with an 18 in. sash opening typically exhausts 700 CFM to 1,000 CFM; this airflow is a load on the exhaust system specified under [[sync/laboratory-exhaust-and-fume-hoods]]. {note}
+
+# Testing {toc}
+
+## Fume hood performance shall be demonstrated by the ASHRAE 110 tracer-gas method at the three test conditions; manufacturers supply only the As-Manufactured result, and the field tests are a separate, explicitly required scope. {note}
+
+### The hood shall meet an As-Manufactured (AM) rating of 4 AM 0.05 — average tracer containment not exceeding 0.05 ppm at a 4 fpm face-velocity test margin.
+
+```datasheet
+label: ASHRAE 110 As-Manufactured pass criterion
+type: radio
+options:
+ - 4 AM 0.05 (industry standard)
+ - 4 AM 0.10
+ - 8 AM 0.05 (stringent)
+default: 4 AM 0.05 (industry standard)
+```
+
+### An As-Installed (AI) ASHRAE 110 test shall be performed on each hood after installation and the exhaust system is balanced.
+
+### The ASHRAE 110 field test conditions required shall be selected so that field performance, not just factory performance, is verified before acceptance.
+
+```datasheet
+label: ASHRAE 110 field tests required
+type: checkbox
+options:
+ - As-Installed (AI) test
+ - As-Used (AU) test
+default: [As-Installed (AI) test]
+```
+
+### Each hood shall pass a face-velocity traverse and a smoke (visualization) test as part of commissioning, with results recorded.
+
+### The commissioning protocol — face-velocity traverse, smoke visualization, and the ASHRAE 110 As-Installed test — shall be a contractual submittal requirement with EHS acceptance sign-off, not a contractor option. {note}
+
+### Casework structural and chemical performance shall be evidenced by the manufacturer's SEFA 8 third-party test report; field re-testing of casework is not required where the certified report is provided.
+
+# Installation {toc}
+
+## Casework and hoods shall be installed plumb, level, and rigidly anchored, with continuous bench runs aligned and work surfaces sealed at walls and between sections. {note}
+
+### Casework shall be anchored to the structure per the approved seismic anchorage details.
+
+### Work surfaces shall be set in a continuous bead of chemical-resistant sealant at the wall and at every joint, and joints in epoxy surfaces shall be field-welded or epoxy-filled to a continuous, cleanable surface.
+
+### Service fixtures and drops shall be connected only after the rough-in locations on the approved shop drawings are verified in the field.
+
+### The fume hood shall be connected to the exhaust collar furnished under [[sync/laboratory-exhaust-and-fume-hoods]]; the responsibility split at the collar shall be confirmed before installation to avoid a gap in scope. {note}
+
+### Protective coverings shall remain on work surfaces and hood liners until final cleaning.
+
+# Delivery, Storage, and Handling {toc}
+
+## Casework and hoods shall be delivered, stored, and handled to protect finishes and work surfaces from impact, moisture, and contamination. {note}
+
+### Materials shall be delivered in the manufacturer's protective packaging and shall not be delivered until the space is enclosed, weather-tight, and the wet trades are complete.
+
+### Casework and work surfaces shall be stored indoors, off the floor, and protected from construction traffic and moisture.
+
+### Damaged or contaminated units shall be repaired to manufacturer standards or replaced, not patched in the field.
+
+# Warranty {toc}
+
+## The manufacturer shall warrant the casework, work surfaces, and fume hoods against defects in material and workmanship for the specified period. {note}
+
+### The casework and work-surface warranty period shall be as specified, with a minimum of one year from Substantial Completion.
+
+```datasheet
+label: Casework and work surface warranty period
+type: select
+unit: years
+options:
+ - "1"
+ - "2"
+ - "5"
+default: "1"
+```
+
+### The fume hood warranty shall cover the hood body, sash, liner, and integral controls for the same minimum period.
+
+# Spare Parts {toc}
+
+## Spare parts and maintenance materials shall be furnished so that finishes and wear items can be maintained without re-procurement. {note}
+
+### The Contractor shall furnish touch-up finish for the casework powder coat and matching sealant for the work surfaces.
+
+```datasheet
+label: Spare parts and maintenance materials
+type: checkbox
+options:
+ - Casework touch-up finish
+ - Work surface sealant
+ - Spare sash glazing
+ - Spare service-fixture handles / index buttons
+default: [Casework touch-up finish, Work surface sealant]
+```
+
+### Spare ductless-hood filter sets, where ductless hoods are provided, shall be furnished in the quantity recommended by the filter manufacturer for the first year of service.