Shademaker rv awning. Our awnings use heavy-duty aluminum frame, springs are pre-loaded for ease of installation, 2-way roller clutch for smooth operation. 13oz. tri-laminated vinyl awning fabric for strength and durability, brilliant colors and patterns to enhance your RV appearance. RV awning hardware will not fit RV's with curved sides.The legs can be used patio style down to the ground or back to the RV. The dimension listed is from arm to arm the fabric will be 9'' shorter. Center rafter recommended with the 21' awning. This item is available when selecting your options below. Don't be fooled by cheaper rv awnings this is a quality US made awning with no plastic parts in the clutch assembly. Shipping to US locations only. Great spring prices click below.