Inside versus outside mounting
An inside mount depends on adequate depth, a reasonably square opening, and clear hardware. Outside mounting can improve coverage or conceal irregular trim but requires a sound mounting surface.
Doors and wide glass
Sliding doors, French doors, sidelights, and wide window walls require traffic, handle, stack, floor clearance, and panel configuration planning.
Shutters and specialty shapes
Shutters require frame, hinge, louver, panel, divider-rail, sill, lock, and tilt-in-window analysis. Arches and angles need templates or specialized measurements.
Motorization
Motorized projects add power source, wire location, motor side, antenna clearance, control system, and service-access requirements.
Professional checklist
- Measure every opening individually
- Photograph unusual conditions
- Confirm mount type and finished deductions
- Record control side and accessibility
- Identify power and integration needs
- Document responsibility for final field verification
Common questions
Why can two windows that look the same need different sizes?
Framing, trim, tile, and squareness often vary.
Should homeowners measure before requesting a quote?
Approximate sizes help budgeting, but final custom orders should use an accountable professional measure or the seller’s required procedure.
Who is responsible for a measuring error?
That depends on the contract and who supplied final order dimensions. Clarify it in writing.