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| The following steps / example are used to illustrate the process involved in designing a simple selective pallet rack system. | ||
| 1.) | Determine the pallet size (width X depth X height) and weight. |  |
| Example: The pallet is 42" X 48" X 66" and weighs 2800 lbs. | ||
| Note: | The pallet width is used to determine the shelf beam length. | |
| The pallet depth is used to determine the frame depth. | ||
| The pallet height is used to determine the total frame height. | ||
| 2.) | Determine the shelf beam lengths and sizes based on the number of pallets they will hold (remember to add clearances between frame posts and pallets - see additional pallet rack notes for clearances). | |||
| Example: Each pair of shelf beams will hold 2 pallets, therefore the length should equal: | ||||
| 2*42"+4"+4"+4"=96" | ||||
| The load on the pair of shelf beams will be 2 pallets * 2800 lbs = 5600 lbs | ||||
| Refer to the shelf beam capacity table and find a 96" length row. A pair of C4X4.5's with no lateral bracing is capable of carrying 7200 lbs > 5600 lbs. Use part number = SB-C4x4.5-96-S | ||||
| Note: Pallet Supports are recommended if a variety of pallet depths are being used. | ||||
| 3.) | Determine how many shelf beam levels will be in a bay. | |||||||||||
| Example: Each bay will accommodate 3 shelf beam levels with bottom pallets resting on the floor. | ||||||||||||
| 4.) | Determine height of the frame (remember to include shelf beam depths and vertical clearances in frame height). | |||||||||||
| Example: | ||||||||||||
| Frame Height | = | 66" | + | 6" | + | 4" | + | |||||
| 66" | + | 6" | + | 4" | + | |||||||
| 66" | + | 6" | + | 4" | + | 4" | = | 232 | ||||
| Note: 4" is the recommended minimum frame height above the top most pallet position. Be sure to check building height clearance with respect to frame height. | ||||||||||||
| 5.) | Determine depth of the frame (based on pallet depth). | |||||||||||
| Example: | Depth of frame = 48" - 3" - 3" = 42" (3" over hang each side) | |
| Frame height to depth ratio = 3 * (66" + 6" + 4") / 42" = 5.43 |
| 6.) | Determine load on the frame. |
| Example: | |
| Load per shelf beam level = 2 pallets * 2800 lbs = 5600 lbs | |
| Load on entire frame = 3 levels * 5600 lbs = 16800 lbs | |
| 7.) | Find a pallet frame capacity capable of carrying the load. Provide HR with frame depth, height, unsupported length, and total load. |
| Example: | |
| The maximum unsupported length between two shelf beams or a shelf beam and the floor is 72" (66" + 6"). | |
| For the pallet frame with a 72" unsupported length row, C3X3.5 frame is capable of carrying 16800 lbs. Use part number = F-C3X3.5-232-42. | |
| 8.) | Determine the correct quantities and colors for each type of rack component and fill out the HR order form. |
| 9.) | Fax completed order form to HR sales department. Please attach a sketch of the product information (size and weight) and shelf beam levels for HR review. |
| --Alternatively, you can send in a complete sketch with product information (size & weight), desired shelf beam levels, and building height restrictions and we will design and quote the rack system accordingly. All drive-in, pallet flow, push back, and pick module systems require a special analysis by the HR sales department. |
