There is no way to stop solid wood door from changing. Depending on the ambient humidity, it may expand, contract and even bow. If you need to fine tune a door or if you have to install a new one, we offer you this door stand:

Features

• Used as a third hand, it allows to securely hold a door on its edge while planning, drilling or routing a hinge recess.
• Can also be used to a hold door in vertical position to help fit it into a frame.
• Equipped with an adjustable clamp for 1-1⁄4” (32 mm) to 2-3/16” (55 mm) thick doors.
• Solid 6” (150 mm) x 6” (150 mm) x 24” (600 mm) non-scratch base.
• Maximum door weight: 110 lb (50 kg).