Tyvek envelopes can be ordered from USPS.com in packs of 10 for free. Check the product page for USPS Tyvek envelopes to learn more about them. Tip: When shipping Priority Mail Tyvek Envelopes, choose the (Custom) Package option from the Packaging menu in ShippingEasy. Learn more.
Average Home Building Costs Per Sq Ft: Shell Option. The average home building cost per sq ft for a home is far more uniform than the finished cost per square foot. A shell does not include the foundation, landscaping, fixtures, cabinetry finishes or appliances. Sometimes it does not even include drywall. It usually doesnât include the plumbing or electrical wiring either, though sometimes rough plumbing and wiring are included. The average home building cost per sq ft for a shell is about $25 per square foot with a range of about $22 to $30 per square foot.
At first glance, the average home building cost per square foot seems extremely high. People who do a lot of home improvement jobs are usually the first ones to question, because they know the cost of materials. The fact is that the materials are about 25-33 percent of the cost of a house.hat factors keep the average home building costs per square foot high: Unexpected Expenses and Liability. In any home building job there is a certain amount of waste, water damage, costly crew mistakes, work slowdowns due to weather, and other unforeseeable expenses.