Top 10 Pallet Racking Double Deep Supplier & Suppliers

Single deep pallet racking provides 100% direct access to every single pallet position from an immediate operating aisle, accommodating standard counterbalance or reach trucks. However, it requires approximately 60% of the warehouse footprint dedicated solely to aisle traffic. Double deep pallet racking stores pallets two positions deep in a four-row back-to-back configuration. This layout eliminates 50% of the interior access aisles, increasing overall pallet density by up to 60%. Selectivity is reduced to 50% on immediate pick faces, operating on a Last-In, First-Out (LIFO) inventory model per bay depth, and requires reach trucks equipped with telescopic forks or pantograph scissor attachments.

Standard counterbalance forklifts cannot service double deep racking because their forks cannot extend past the initial load beam. Double deep operations require specialized reach trucks equipped with either: (1) a hydraulic pantograph scissor mechanism that projects standard forks forward through the first pallet bay into the rear bay, or (2) telescopic hydraulic forks with internal sliding tines. Mast tilt cameras, laser position indicators, and wire-guided or mechanical angle-iron floor guidance channels within aisles are strongly recommended to help operators align loads at heights above 6 meters.

Under international standards such as EN 15512 and RMI MH16.1, structural beam deflection under full working load must not exceed 1/200th of the clear beam span (L/200), with many high-bay precision reach facilities designing to L/250. Because rear pallet placement induces dynamic operator movement and slight impact during fork retraction, heavy-duty box beams or step beams with four-hook welded end connectors and heavy-gauge safety locking pins are specified to prevent accidental beam dislodgement.

Yes. Frame depth and beam spacing are calculated directly from your dominant pallet profile. For European operations handling EUR/EPAL pallets (1200mm depth × 800mm width), upright frame depths are typically engineered at 1050mm to 1100mm to provide standard 50mm front and rear pallet overhangs. In double deep setups, intermediate dual-pallet support bars or wire mesh decks are welded or bolted across the beams to provide structural support for weak or undersized pallets in the rear positions.

Procurement teams should verify: (1) CE Certification under the Construction Products Regulation (e.g., CE No. 2435-CPR-8605159) for European destinations, confirming conformity to EN 1090 execution of steel structures; (2) ISO 9001:2015 certified Quality Management Systems governing weld integrity and coil traceability; (3) Finite Element Analysis (FEA) and static calculations referencing EN 15512, EN 15620, or RMI codes; and (4) RoHS compliant non-toxic electrostatic powder coating certificates.

Factory production for custom double deep projects at HEDA Shelves typically takes 15 to 30 calendar days depending on tonnage (from single 40ft HQ container batches up to multi-thousand tonne turnkey logistics parks). Sea freight shipping transit from our Guangzhou manufacturing facility to major European base ports (Rotterdam, Hamburg, Antwerp, Valencia, Felixstowe) averages 28 to 35 days, with all items bundled in seaworthy export packaging, marked with steel-strapped identification tags matching project CAD assembly blueprints.

Industrial concrete slabs must be engineered for concentrated upright footplate point loads, which often exceed 40 to 80 kN per upright column in high-density facilities. A minimum slab thickness of 150mm to 200mm of reinforced concrete (Class C25/30 or higher) with a floor flatness tolerance conforming to DIN 18202 or TR34 (FM2 rating for reach truck aisles) is required to ensure stability during deep-reach pallet retrieval.