A window rough opening is 1/2” larger than the measured window size. For example, a 36” (or 3/0圆/8) door may have a rough opening of 38”x82”. An entry door opening is usually 2” wider and taller than the door size.
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Rough Openings: Refer to the framed openings for a door or window before the opening is finished with trim or product. Other spacing's may require 12”, 19.2” or 24”, depending on garage design and local codes. Studs: Studs are commonly placed 16” on-center. Splices in top and bottom plates must be separated by a minimum of 4’. Bottom plates may be spliced anywhere but top plate splices may only occur in the center of a stud. Bolts should be placed within 12” of an end, but not less than 7 times the bolt diameter. Bolt spacing will depend on local building codes. They must be bolted to the foundation with foundation anchors or foundation bolts. Typically 2x4 treated lumber, in some locations redwood lumber may be used. Sill Plate: The bottom plate of the garage stud wall. Be sure that your slab is square and your sill plates are level. Inspections will generally include, but not limited to: 1. Inspections may be done in several stages, with many being combined in one visit. Begin construction, getting inspections as required.Get quotes and contracts from any subcontractors.You may need: Application for Building Permit, a Site Plan (your property with the proposed garage location drawn), Foundation (concrete) detail, Elevations, Floor Plan, and a Cost Evaluation. Get your plan approved by the city and obtain your permit.Visit your city’s website or Planning and Zoning office to learn about the permit and building plan process, and any special restrictions in your area.What type of siding? Common choices are: vinyl siding, T111 plywood siding (4’x8’ panels), 12” lap siding, and ribbed steel siding.3/12 is the minimum recommended for shingles or metal roofing. A common roof pitch is 4/12 (slope rises 4” for every 12” horizontal) but you may wish to match slopes with your house or for your climate. What type of roof covering? Common choices are 3-Tab or dimensional fiberglass asphalt shingles, and painted ribbed steel roofing.Where and how many entry doors and windows?.Garage doors should be at least 12” shorter than the wall height. A typical 1-car door is 9’ wide and a 2-car door is 16’, but there are many sizes to chose from. How big of a Garage Door do you need? Standard height is 7’ high, but RV’s, farm equipment and larger vehicles may need a taller door.How big of a garage will your city ordinances allow? Height, property lines, yard configuration, and square footage requirements may all take part in determining your garage size.
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How big would you like the garage to be? Do you need extra space for equipment, storage, a work area?.