The 20' x 40' West Coast frame has a rigid framework which allows the tent to be set up without the use of a center pole. It is manufactured with our best quality, hardened steel fittings and anodized aluminum spreader pipes. This listing is just for the replacement metalwork for a 20' x 40' frame tent. West Coast Frame Tents must be anchored using ropes, ratchets, or cables to hold it in place. West Coast style frame tents are very popular for weddings, graduation parties, birthday parties, anniversary parties or any outdoor party event. No center pole gives the West Coast style frame tent optimum space.