1 Regionally, the lowest average price was $35,900 for a new single-wide in the Midwest and $83,800 for a new double-wide in the West.2  Many new manufactured/mobile homes are set up in developments/parks, where the home owners pay monthly fees/space rent of $100-$800 or more, depending on location and park amenities. Regionally, the lowest average price was $35,900 for a new single-wide in the Midwest and $83,800 for a new double-wide in the West.
Hard mounting has its obvious advantages and can be done from the front or back. To mount the corbels from behind, use multiple screws or bolts that are long enough to enter the corbel but not so long as to go all the way through the corbel. If you can't attach a corbel from the back, a front mount is required. You can simply screw into the front of the corbel and cover the screw heads with putty and sand. Be aware of what you are screwing into and make sure you are going at least 1 1/2 into the mounting surface.
Secure the Posts. Bolt the posts to the inside of the rim joists. Maximum spacing of posts is 72 inches on center. Bolts should be vertically spaced no less than 5-1/8 inch apart. For a composite railing system, slide the post sleeve over the wood post, then the post sleeve skirt over the post sleeve; both should rest on the decking. Attach the top and bottom rails to the inside of the posts using two 3-inch screws diagonally 2 inches apart. Attach the top cap to the posts using two 3-inch screws diagonally 2 inches apart. Screw the top cap to the top rail every 12 inches.