Needle punched felt refers to felt that is made by vertically needling fibers together to achieve a
desired thickness and density. Needled felt is commonly made from wool, synthetic and other re-processed fibers.
When viewing a cross-section of needled punched felt, the fibers lay vertically, as opposed to pressed felt, where the fibers lay horizontally. Needle punched wool felt normally contains a lower percentage of wool as compared to SAE wool felts, and is therefore less expensive. F-15N and F-26N are the two standard type of needle punched wool felt. AR FLY Woollen Mills can also make needle punched equivalents to SAE grade F-3 and F-7 pressed wool felts. These normally have lower wool content than their SAE grade counterparts, but are made to comparable densities. These materials are often used for packaging, crating, and lining applications, where a lower grade felt is acceptable.