Baled tyres awaiting collection or processing represent significant value (£100-£200 per tonne) and potential liability. Poor storage creates fire risks, environmental violations, pest problems, and bale degradation reducing market value. UK Environment Agency prosecutions for inadequate tyre storage result in fines of £20,000-£150,000 and site closure orders.
Proper storage requires attention to fire prevention (separation distances, maximum pile sizes), structural stability (stacking limits, ground conditions), environmental protection (preventing oil/water contamination), security (preventing unauthorized access or arson), and regulatory compliance (environmental permits, fire safety orders).
Well-managed bale storage maximizes site capacity, maintains bale quality, satisfies regulatory requirements, reduces insurance premiums (demonstrable risk management), and protects asset value.
This guide explains storage regulations, fire safety requirements, stacking configurations, space planning, and environmental considerations for baled tyre storage.
Gradeall International manufactures tyre baling equipment at our facility in Dungannon, Northern Ireland. We’ve advised customers on compliant storage arrangements across 100+ countries over nearly 40 years.
Environmental permits (England and Wales – Environment Agency):
Sites storing tyres require environmental permits under Environmental Permitting Regulations 2016.
Exemption T9 (storing end-of-life tyres):
Standard permit:
Bespoke permit:
Fire safety regulations:
Regulatory Reform (Fire Safety) Order 2005 requires fire risk assessments for commercial premises storing combustible materials.
Risk assessment must address:
Local fire authority consultation recommended for quantities exceeding 500 bales (500 tonnes).
Planning permission:
Change of use from industrial to waste storage may require planning permission. Consult local planning authority before establishing storage areas exceeding 100 tonnes.
Tyre fires are exceptionally difficult to extinguish, generate toxic smoke, and cause environmental damage through oil runoff. Prevention through proper storage is critical.
Separation distances from site boundaries:
Environment Agency guidance (influenced by fire service recommendations):
Under 100 tonnes: 6 metres minimum from boundaries 100-500 tonnes: 10 metres minimum Over 500 tonnes: 20 metres minimum, or site-specific fire engineering assessment
Separation from buildings:
Maximum pile sizes:
Limit individual pile sizes to prevent uncontrollable fires:
General guidance: Maximum 100 tonnes per pile (approximately 100 bales) Preferred: 50 tonnes per pile (50 bales) for better fire compartmentation
Pile dimensions:
Fire breaks between piles:
Minimum 6 metres between storage piles. This allows:
For large storage areas (500+ tonnes), create 10-metre fire breaks every 4-5 piles to compartmentalize site.
Fire suppression considerations:
Water supply: Hydrants within 100 metres of storage area (fire service requirement) Foam capability: Aqueous film-forming foam (AFFF) extinguishers for tyre fires Access routes: 4-metre wide access roads for fire appliances, hard standing surfaces Drainage: Contaminated water containment (prevent oil runoff to watercourses)
Sites storing over 500 tonnes should consult fire authority to develop fire action plan.
Horizontal stacking (most common):
Stack bales flat (largest face down):
Maximum height: 3 bales (2.4 metres total) on concrete/asphalt, 2 bales (1.6 metres) on compacted gravel
Stability factors:
Honeycomb stacking (improved stability):
Alternate orientation each layer:
This interlocking pattern improves stability 30-40% vs straight stacking, allowing:
Edge stacking (for space efficiency):
Stack bales vertically along warehouse walls:
Limitations:
Ground conditions:
Concrete or asphalt: Ideal (flat, load-bearing, clean drainage) Compacted hardcore: Acceptable (ensure proper compaction, minimum 150mm depth) Gravel: Marginal (bales sink under load, becomes uneven, maximum 2 bales high) Soil/grass: Unsuitable (bales sink, muddy conditions, uneven, 1 bale high maximum)
For temporary storage (under 3 months), compacted gravel adequate. For permanent storage, concrete or asphalt recommended (£50-£75 per square metre installed).
Indoor storage advantages:
Weather protection: Bales stay dry (prevents water weight gain, maintains quality) Security: Locked buildings deter theft and vandalism Fire risk: Enclosed spaces allow automated suppression systems Temperature stability: Consistent conditions, no freeze-thaw damage to wire Regulatory: Often easier to permit indoor storage (contained, controlled)
Indoor storage challenges:
Outdoor storage (more common):
Cost effective: No building rental, uses unutilized yard space Scalability: Easy to expand storage area as needed Fire risk: Open-air fires dissipate heat upward (less building damage risk)
Outdoor storage challenges:
Compromise solution: Covered outdoor storage:
Roofed structure (no walls) combines advantages:
Popular for medium-scale operations (100-500 tonnes stored).
Bale footprint:
Standard car tyre bale: 1,100mm × 1,100mm = 1.21 square metres floor space
Stacked 3-high: 1.21 square metres supports 2.7-3.0 tonnes (3 bales × 900-1,000kg)
Storage density:
Storage area efficiency depends on access requirements.
Minimal access (bales stored temporarily awaiting collection):
Working storage (frequent access for loading/unloading):
Segregated storage (multiple bale types or customers):
Calculating required storage capacity:
Determine maximum inventory:
Maximum inventory = (X tonnes × Y weeks / 4.33 weeks per month) × 1.25
Example: 100 tonnes monthly, 2-week collection cycle Maximum inventory = (100 × 2 / 4.33) × 1.25 = 58 tonnes
Storage area required = 58 tonnes ÷ 1.2 tonnes/m² = 48 square metres (working storage with access)
Add fire breaks: 48m² × 1.15 (15% additional for 6m fire breaks) = 55 square metres total
Preventing water contamination:
Tyres contain residual oils that can leach during rainfall. Prevent contamination of surface water or groundwater:
Impermeable surface: Concrete or asphalt (not gravel or soil) Sealed drainage: Route runoff to sealed drainage system, not soakaways Interceptor: Oil separator on drainage (removes hydrocarbons before discharge to sewer) Containment: Bund walls or drainage channels prevent uncontrolled discharge
Environment Agency may require discharge consent for surface water drainage from storage areas exceeding 100 tonnes.
Preventing soil contamination:
If outdoor storage on unsealed ground (temporary situations):
Long-term outdoor storage on unsealed ground violates most environmental permits. Install proper surface if storing over 3-6 months.
Litter control:
Wire fragments, rubber debris, and packaging materials blow around sites. Measures:
Neighbors complain about litter. Local authorities issue enforcement notices. Maintain clean site to avoid problems.
Pest control:
Baled tyres attract fewer pests than loose tyres (no water collection cavities) but still provide harbourage for rodents.
Measures:
Preventing arson:
Tyre fires, especially deliberate fires, cause enormous damage. Arson prevention measures:
Perimeter fencing: 2-metre height minimum, lockable gates CCTV: Visible cameras covering storage areas (deterrent effect) Lighting: Motion-activated floodlights Signage: “CCTV in operation,” “No unauthorized access” Site checks: Regular out-of-hours patrols or alarm monitoring
Insurance companies require these measures for sites storing over 100 tonnes.
Access control:
Restrict site access to authorized personnel:
Insurance requirements:
Insurers impose specific security requirements as policy conditions:
Failure to comply voids insurance. If fire occurs and security measures absent, insurer refuses claim.
Wire corrosion:
Wire exposed to weather corrodes, weakening bale integrity.
Galvanized wire: Corrosion resistance 5-10 years outdoor exposure Black annealed wire: Corrosion begins within 6-12 months outdoor exposure
For storage exceeding 6 months outdoors: Specify galvanized wire (adds £10-£15 per 25kg spool, £0.60-£0.90 per bale).
Covered storage: Black wire adequate (protected from direct rain)
UV degradation:
Sunlight degrades exposed rubber surfaces, causing:
Mitigation:
Water absorption:
Bales stored outdoors absorb water during rain:
3 bales high (2.4 metres) on level concrete/asphalt safely. 4 bales high (3.2 metres) possible with honeycomb stacking (alternating orientations) on excellent ground. Indoor storage against structural walls allows 5-6 bales high with bracing. Ground conditions limit stacking: Compacted gravel maximum 2 bales, soil/grass maximum 1 bale. Exceeding safe stacking heights causes toppling (safety hazard, bale damage).
Minimum 6 metres between piles (fire break allows firefighting access, prevents fire spread). Sites storing over 500 tonnes should implement 10-metre fire breaks every 4-5 piles for fire compartmentation. Separation from site boundaries: 6 metres minimum (under 100 tonnes), 10 metres (100-500 tonnes), 20 metres (over 500 tonnes). Buildings require 10-metre separation minimum, 20 metres from residential properties.
Yes, with proper precautions. Requirements: Impermeable surface (concrete/asphalt, prevents soil/water contamination), fire breaks between piles, perimeter fencing (security, litter control), drainage controls (oil interceptor), maximum pile sizes (100 tonnes per pile). Outdoor storage exposes bales to weather (water absorption 5-10% weight increase, UV degradation, wire corrosion). Covered storage (roofed structure) recommended for storage exceeding 3-6 months
Yes, for quantities over 40 tonnes in England/Wales (Environment Agency) or equivalent in Scotland (SEPA) and Northern Ireland (NIEA). Under 40 tonnes: Exemption T9 (free registration, site conditions apply). Over 40 tonnes: Standard permit required (£1,650-£3,218 application, £1,161-£3,654 annual subsistence). Over 1,000 tonnes: Bespoke permit (£13,000+ application cost). Operating without required permit risks prosecution (£20,000-£150,000 fines, site closure).
Maximum pile sizes (100 tonnes per pile preferred), 6-metre minimum separation between piles, 6-20 metre separation from boundaries (depends on quantity), water supply within 100 metres (hydrants), firefighting access routes (4 metres wide minimum), impermeable surface (prevents contaminated water runoff), fire risk assessment, hot work controls (welding/cutting near tyres), security measures (preventing arson). Sites over 500 tonnes should consult fire authority for fire action plan.
Working storage (frequent forklift access): 65-85 square metres including aisles. Minimal access (tight stacking, awaiting collection): 45-50 square metres. Segregated storage (multiple batches): 85-125 square metres. Add 15% for fire breaks: Total 52-144 square metres depending on access requirements. Vertical space: 2.4-3.2 metres (3-4 bales high). Storage density: 0.8-2.2 tonnes per square metre depending on access needs and stacking height.
Gravel (compacted hardcore): Acceptable for temporary storage (under 6 months), maximum 2 bales high due to ground settlement. Bales sink under load, creating uneven stacks. Grass/soil: Unsuitable except single-bale-high temporary storage. Bales sink significantly, muddy conditions develop, violates most environmental permit conditions. For storage exceeding 3 months: Install concrete or asphalt surface (£50-£75 per square metre). Ground conditions affect stability, drainage, and regulatory compliance.
Indoor or covered storage: 2-3 years before noticeable quality loss. Outdoor uncovered storage: 6-12 months before UV degradation becomes significant (surface cracking, rubber powdering, wire corrosion). Construction market buyers (PAS 108) may reject visibly degraded bales. Shredding/energy recovery buyers less concerned about surface condition. Best practice: FIFO rotation (first in, first out), target maximum 6-12 month storage, covered storage for longer durations.
Tyre bale storage requires fire safety measures (6-metre separation between piles, maximum 100 tonnes per pile, 6-20 metre boundary separations), structural stability (3 bales high maximum on concrete, honeycomb stacking for improved stability), and environmental protection (impermeable surfaces, sealed drainage, oil interceptors).
Regulatory compliance includes environmental permits (exemption T9 for under 40 tonnes, standard permit over 40 tonnes), fire risk assessments (Regulatory Reform Fire Safety Order 2005), and potential planning permission for change of use.
Space requirements range from 0.8-2.2 tonnes per square metre storage density depending on access needs. Working storage with forklift access: 1.2-1.5 tonnes/m². Tight stacking awaiting collection: 2.0-2.2 tonnes/m². Include 15% additional space for fire breaks.
Indoor or covered storage preserves bale quality (prevents UV degradation, wire corrosion, water absorption). Outdoor uncovered storage acceptable for short durations (under 6 months) but causes 5-10% weight increase from water absorption and surface degradation reducing market value.
Security measures (perimeter fencing, CCTV, lighting) prevent arson and satisfy insurance requirements for sites storing over 100 tonnes.
Contact Gradeall for storage planning guidance supporting your tyre baling operation. We advise on compliant storage arrangements and regulatory requirements.
* The prices and running-cost figures below are based on real UK customer examples and are correct at the time of writing, but should be treated as indicative only.
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