Coordinate the transition

Low and Flush-Threshold Bifold Doors

A reduced threshold can improve the transition between spaces, but exposure, drainage, waterproofing, floor build-ups and accessibility goals must be resolved together.

Low-profile bifold door threshold between interior and patio

Systems in this collection

Choose the panel path. Then fit it to the opening.

1 product family available for configuration review.

Buying notes

What to resolve before fabrication

Document the opening, header, jambs, sill and surrounding floor levels.

Choose panel count and stack location from daily use and clearance.

Confirm glass, finish, threshold, drainage, freight and installation before fabrication.

Straight answers

Buying low-threshold bifold doors

What makes an exterior bifold door custom?

The approved opening controls panel count, individual panel size, stack direction, threshold, glass, frame, finish, hardware and structural coordination. Every choice must resolve to a supported manufacturing configuration.

Why is pricing reviewed instead of shown as a stock amount?

Opening size, panel layout, glass, threshold, hardware, freight, unloading and installation can change the final amount. A reviewed quote keeps those facts attached to the exact system.