• Very Narrow Aisle Rack

Very Narrow Aisle Rack

In Very Narrow Aisle (VNA) Pallet Rack Systems, the space separating parallel rack units is greatly reduced, and pallets are placed and retrieved using a side loading fork truck. This minimizes the size of the aisles between rows of racks and can reduce the aisle space by around 40%. These pallet rack systems are available in original slotted or tear drop style columns and can be used at heights of up to 40 feet.

Provides higher density with 100% selectivity. Uses lift trucks designed to work in narrow aisles

Advances in fork lift trucks that can operate in aisles less than five feet wide have made VNA storage racks possible. The pallet rack systems provide a significant reduction in floor space and generally reduce costs of warehousing.

Pallets in very narrow aisle systems are 100% selective. With VNA racking, access to stock is uncompromised and the amount of product stored in the warehouse is maximized. It is an effective method of increasing pallet storage within a given area.

Columns & Beams: Roll-formed or structural

Features:

  • Less floor area for aisles
  • 100% selective pallet rack
  • Design flexibility
  • Space-efficient
  • Immediate access to every pallet load

Applications & Options:

  • Industrial
  • Retail and general warehousing
  • Limited space
  • High cost real estate

Upright Frames

capacity charts


Frame Capacities

Vertical
Beam
Spacing UF-S31I UF-S32I UF-S33I UF-R33I UF-M33I UF-Y33I UF-H33I UF-M43I UF-H43I
36" Static Load Capacities for component items are no longer published.
42"
48"
54"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Frame Capacities

Vertical
Beam
Spacing
36" Static Load Capacities for component items are no longer published.
42"
48"
54"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Frame capacity chart - Slotted Connection

Vertical Beam Spacing SSF-335
36" Static Load Capacities for component items are no longer published.
48"
60"
72"
84"
96"
108"

Frame capacity chart - Bolted Connection

Vertical Beam Spacing SBF-335 SBF-341 SBF-445
36" Static Load Capacities for component items are no longer published.
48"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Horizontal Beams

capacity charts



Beam Capacities

Tear Drop Pallet Rack
Beam
Profile
Beam Lengths
48" 60" 72" 84" 92" 96" 102" 108" 120" 144" 156"
250 S 5,700 4,530 3,130 2,300 1,910 1,750 1,550 1,380 1,120 770 660
300 S 7,500 5,980 4,820 3,530 2,940 2,690 2,380 2,120 1,720 1,190 1,010
355 S 9,760 7,770 6,460 5,330 4,440 4,070 3,600 3,210 2,590 1,790 1,520
410 L 10,810 8,620 7,150 6,110 5,570 5,200 4,600 4,100 3,310 2,290 1,940
410 S 12,000 9,780 8,120 6,930 6,320 5,830 5,160 4,600 3,710 2,570 2,180
465 S 12,000 11,970 9,940 8,490 7,740 7,410 6,960 6,320 5,110 3,530 3,000
500 S 12,000 12,000 11,170 9,540 8,700 8,330 7,830 7,380 6,140 4,250 3,610
550 S 18,000 18,000 18,000 11,150 10,160 9,720 9,140 8,620 7,740 5,420 4,610
600 S 18,000 18,000 18,000 12,850 11,710 11,210 10,540 9,940 8,920 6,790 5,770
650 S 18,000 18,000 18,000 14,660 13,360 12,790 12,020 11,340 10,180 8,360 7,110
650 R 18,000 18,000 18,000 18,000 15,160 14,520 13,640 12,870 11,550 9,370 7,970

• Capacities are based on uniformly distributed loads per pair of beams.
• Capacities listed are for non-seismic conditions. For seismic conditions consult with Ridg-U-Rak sales or engineering.

Beam Capacities

Slotted Pallet Rack
Beam
Profile
Beam Lengths
48" 60" 72" 84" 92" 96" 102" 108" 120" 144" 156"
250 S 5,700 4,530 3,130 2,300 1,910 1,750 1,550 1,380 1,120 770 660
300 S 7,500 5,980 4,820 3,530 2,940 2,690 2,380 2,120 1,720 1,190 1,010
355 S 9,760* 7,770 6,460 5,330 4,440 4,070 3,600 3,210 2,590 1,790 1,520
410 L 10,810* 8,620 7,150 6,110 5,570 5,200 4,600 4,100 3,310 2,290 1,940
410 S 12,270* 9,780* 8,120 6,930 6,320 5,830 5,160 4,600 3,710 2,570 2,180
465 S 15,020* 11,970* 9,940* 8,490 7,740 7,410 6,960 6,320 5,110 3,530 3,000
500 S 16,890* 13,460* 11,170* 9,540* 8,700 8,330 7,830 7,380 6,140 4,250 3,610
550 S 19,720* 15,710* 13,050* 11,150* 10,160* 9,720* 9,140* 8,620 7,740 5,420 4,610
600 S 22,500* 18,120* 15,050* 12,850* 11,710* 11,210* 10,540* 9,940* 8,920 6,790 5,770
650 S 22,500* 20,670* 17,160* 14,660* 13,360* 12,790* 12,020* 11,340* 10,180* 8,360 7,110
650 R 22,500* 22,500* 19,480* 16,640* 15,160* 14,520* 13,640* 12,870* 11,550* 9,370* 7,970

• Capacities marked with * indicate that the column connection capacity may be limited based on the hook option and/or frame model (see table below).
• Capacities listed are for non-seismic conditions. For seismic conditions consult with Ridg-U-Rak sales or engineering.
• Capacities are based on uniformly distributed loads per pair of beams.
• Capacities listed are for a 2-pallet wide condition.
• All beams over 114" in length should utilize at least one flanged, tek-screwed or lock-in cross bar located at mid length.

Beam Capacities - Slotted Connection

Tear Drop Pallet Rack
Beam Length
Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr
48" 10,880 11,160 12,290 12,290 18,510 18,910
54" 9,350 9,920 10,640 10,930 15,860 16,810
72" 6,280 7,210 7,330 7,930 10,550 12,610 18,810
84" 4,970 5,300 5,830 5,830 8,060 10,810 14,840 18,960
92" 4,140 4,420 4,860 4,860 6,650 9,870 12,330 17,310
96" 3,800 4,060 4,460 4,460 6,080 9,320 11,280 16,590
102" 3,360 3,600 3,950 3,950 5,350 8,260 9,940 15,620 14,130
108" 2,990 3,210 3,530 3,530 4,750 7,370 8,830 14,750 12,520
120" 2,420 2,600 2,860 2,860 3,820 5,970 7,100 12,880 10,030
132" 2,000 2,150 2,360 2,360 3,140 4,930 5,840 10,640 8,220 17,640
144" 1,670 1,810 1,990 1,990 2,630 4,150 4,880 8,940 6,870 15,640
156" 1,430 1,540 1,690 1,690 2,230 3,530 4,150 7,620 5,820 13,330
180" 1,070 1,160 1,270 1,270 1,670 2,660 3,100 5,730 4,340 10,010

Note: Beams must be secured by beam locks against accidental upward forces. All capacities are per pair of beams based on uniformly distributed loads. Capacities are based on current RMI specifications.

Beam Capacities - Bolted Connection

Tear Drop Pallet Rack
Beam Length
Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr
48" 10,880 11,160 12,290 12,290 18,510 18,910
54" 9,350 9,920 10,640 10,930 15,860 16,810
72" 6,280 7,210 7,330 7,930 10,550 12,610 18,810
84" 4,970 5,300 5,830 5,830 8,060 10,810 14,840 18,960
92" 4,140 4,420 4,860 4,860 6,650 9,870 12,330 17,310
96" 3,800 4,060 4,460 4,460 6,080 9,320 11,280 16,590
102" 3,360 3,600 3,950 3,950 5,350 8,260 9,940 15,620 14,130
108" 2,990 3,210 3,530 3,530 4,750 7,370 8,830 14,750 12,520
120" 2,420 2,600 2,860 2,860 3,820 5,970 7,100 12,880 10,030
132" 2,000 2,150 2,360 2,360 3,140 4,930 5,840 10,640 8,220 17,640
144" 1,670 1,810 1,990 1,990 2,630 4,150 4,880 8,940 6,870 15,640
156" 1,430 1,540 1,690 1,690 2,230 3,530 4,150 7,620 5,820 13,330
180" 1,070 1,160 1,270 1,270 1,670 2,660 3,100 5,730 4,340 10,010

Note: All capacities are per pair of beams based on uniformly distributed loads. Capacities are based on current RMI specifications.

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Very Narrow Aisle Rack - Virtual Showroom

Very Narrow Aisle Storage is a special application of selective rack. Aisles between rack bays are reduce to approximately five feet wide creating additional storage space. These systems great improve storage density, while maintaining 100% selectivity with access to every pallet position. VNA systems are used for both full pallet and carton storage. In either case, special lift equipment; such as turret trucks or order pickers are commonly used. For carton storage and retrieval applications, a special Man Up lift is used to hand pick items.

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