A garage hand change — also called a floor plan reversal or mirror flip — is the process of reversing a house plan so the garage opens to the opposite side. On a subdivision where some lots have the driveway access on the left and others on the right, the same house type may need to be built in both configurations. Garage hand changes are one of the highest-volume drawing modifications in production housing.

Outsource CAD handles garage hand changes as a standard service for US production builders, reversing floor plans, foundation plans, plot plans, roof plans, and elevations accurately and quickly — with no errors in dimensions, text, or notation.

What a garage hand change involves

A complete garage hand change requires reversing every sheet in the drawing set that is affected by the mirror flip. This includes the floor plan and all room dimensions and annotations, the foundation plan and any structural elements, the roof plan reflecting the reversed ridge orientation, all four elevations relabelled correctly, the plot plan with the driveway position updated, and any electrical or mechanical plans if included in the permit set.

The most common error in hand changes is missed text — dimensions, labels, and notation that were not correctly mirrored and remain reversed or illegible in the flipped plan. Outsource CAD runs a specific QA check for this on every hand change.

Right-to-left and left-to-right hand changes

We handle both right-to-left and left-to-right garage hand changes on any house type. If you need both configurations of the same plan for a single subdivision, we can produce both simultaneously to ensure consistency across the programme.

Hand changes combined with structural options

Many lots require both a garage hand change and one or more structural option modifications at the same time — for example, a reversed plan with an extended bedroom or a different elevation package. Outsource CAD handles combined modifications as a single lot specific drawing set, applying all changes simultaneously rather than sequentially to maintain accuracy and turnaround speed.

Turnaround

Standard garage hand change turnaround is 24 hours. Complex hand changes combined with multiple structural options are quoted specifically but typically completed within 48 hours.