Doors

Gable-end track door:

More economical than an eave door;

Ceiling and door clearance the same;

Can be built to half the width of the building;

Eave-wall track door:

More expensive than a gable-end door;

May require larger posts, double posts, and larger pads on each side;

Requires a beam (either plates of steel I-beam or wood depending on size and span);

Clearance is reduced by the height of the beam or plates (12")

Overhead doors:

8' high or under falls under the residential category; over 8' high a commercial grade door is necessary and has a higher price;

Require additional headroom (12" to 24" depending on size and type);

Many benefits including potential for remote operation, better weather seal (for workshops)