Floor plans and elevation drawings combine all the detailed information about structure, mechanical system specification and placement, and project design features on paper.

Using existing blue prints or architectural drawings of your home can drastically simplify the process; change or add to the drawings to reflect the renovation plan. Working with drawings also helps you visualize how the changes will affect the overall layout and feel of your home.

When creating drawings or altering existing ones, concentrate on one story at time; transfer room dimensions onto ¼-inch grid paper, using a scale of ¼-inch to represent 1-foot.

Label each room carefully. Note its overall dimensions, including wall thickness, without trim. Include all elements to your drawings:

• Overall dimensions measured from the outside of the house. These can be used as a crosscheck for the accuracy of interior dimensions.
• Permanent fixtures such as tubs, showers, sinks, countertops, fireplaces, major appliances, etc.
• Plumbing, electrical, and HVAC components. Note: sometimes a separate set of drawings is required for these elements; their specifications and placement is crucial.
• Windows and doors, including direction of door swing.
• Stairs and their direction in relation to the house story being drawn.
• Any overhead elements, such as wall cabinets or exposed beams; use dashed lines to represent these features.

For elevation drawings, use the same ¼-inch = 1 foot scale; draw each separate wall. Each room will have four walls, or views; each is called an “elevation.” You should include:

• Floor-to-ceiling measurements, as well as floor-to-ceiling measurements for features such as exposed beams and soffits.
• Doors, including height (floor to top of door opening) and width.
• Windows, including height (floor to top of opening), sill height (floor to top of sill), and width of opening.
• Trim and any other decorative elements.

Use tissue overlays to show any hidden elements. Tissue overlays also come in handy when proposing changes to existing plans, or for alternative plan purposes. Once you have settled on a design, draft a final drawing and begin a materials list for the project.

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The Comprehensive Guide to Home Renovations